Статті в журналах: "Automatic control- Power system"

1

Dobarina, O. V., and K. V. Beglov. "AUTOMATIC POWER CONTROL SYSTEM OF NPP POWER UNIT." Scientific notes of Taurida National V.I. Vernadsky University. Series: Technical Sciences 3, no. 1 (2019): 91–96. http://dx.doi.org/10.32838/2663-5941/2019.3-1/16.

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Aziz, Asma, Amanullah Mto, and Alex Stojsevski. "Automatic Generation Control of Multigeneration Power System." Journal of Power and Energy Engineering 02, no. 04 (2014): 312–33. http://dx.doi.org/10.4236/jpee.2014.24043.

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3

Amirov, Sultan, and Shavkat Mukhsimov. "INVESTIGATION OF THE CURRENT TRANSFORMER CONTROL SYSTEM WITH AUTOMATIC RANGE CONTROL." Technical Sciences 4, no. 1 (January 30, 2021): 4–12. http://dx.doi.org/10.26739/2181-9696-2021-1-1.

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The article examines the control system of a current transformer with automatic range control. All multi-limit current transformers allow measuring currents of different ranges with sufficient accuracy in the control systems of traction power supply devices. However, a common disadvantage for all of them is that if it is necessary to change the measurement range, the controlled current of the traction power supply device is disconnected from the power source, i.e. the production or technological process is forced to stop and dismantling and installation work is required. The proposed current transformer with automatic range control eliminates these disadvantages.Keywords:Current transformer, microcontroller, filter, control system, SSR relay, automatic system, harmonic

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4

Efremova, Tatiana, and Sergey Shchegolev. "Boiler drum automatic power management system." E3S Web of Conferences 222 (2020): 01009. http://dx.doi.org/10.1051/e3sconf/202022201009.

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Dynamic properties of boiler sections as control objects are studied. The requirements for mathematical models and the main adjustable parameters in drum boilers are determined, on the basis of which the requirements for the designed model are made. The construction of a block diagram and calculation of transfer functions of the automatic control system of the control object. The main types of disturbances are determined: feed water and steam consumption, consumer load, fuel consumption, and feed water temperature. Each perturbation is represented as a control action. Models of the object using perturbation channels are obtained. The article considers the construction of an effective model of the system of automatic control of the drum boiler power supply based on the system’s working out of disturbing influences. The paper uses the Matlab application software and the Simulink graphical programming environment.

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5

Dai, Shi Yong, Fan Pan, and Fei Liu. "Application of Wide-Area Automatic Switchover System Based on EMS." Applied Mechanics and Materials 325-326 (June 2013): 573–76. http://dx.doi.org/10.4028/www.scientific.net/amm.325-326.573.

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The traditional automatic switchover device installed in substation only uses local real-time information to make control strategies, with the logic of device predetermined, so it could not adapt to different operating modes. A new wide-area automatic switchover system based on energy manage system (EMS) is proposed in the paper. The wide-area automatic switchover modeling is established through automated modeling and the real-time rest oration control is implemented. The system solves the power supply restore under serial single power supply failure. By comprehensive use of information of the whole network, the automatic switchover can coordinate with other automatic security devices and protections. In addition, the control strategies and network security will be checked and modified in order to prevent from overload and improve security of automatic switchover strategies. The system has been used in Guangdong power grid of China.

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6

Zhang, Rui, Yan Hong Shen, Cun Yu, Feng Long Li, Ke Wei Pang, and Ling Zhang. "Realization of Automatic Power Control in HVDC Control and Protection System." Applied Mechanics and Materials 716-717 (December 2014): 1226–29. http://dx.doi.org/10.4028/www.scientific.net/amm.716-717.1226.

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The paper briefly investigates the importance of power control of HVDC (high voltage direct current) control system in the HVDC projects and focus on the actual analysis and research on the realization of automatic power control in HVDC transmission. It has the important guiding significance for the implementation of automatic power control in HVDC transmission.

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7

Dushutin, K. A., V. A. Ageyev, and Yu A. Vantyusov. "Duplex electromechanical transmission with automatic control system." Traktory i sel hozmashiny 80, no. 8 (August 15, 2013): 12–13. http://dx.doi.org/10.17816/0321-4443-65706.

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Electromechanical transmission with automatic module control system including power and technological channels is suggested. Algorithm for resistance determination during segmentary-finger mover operation taking into account power expenditures for driving moment and angular velocity fluctuations is given. Operating ranges of mobile power module with mover mechanical drive and standard Т-25А tractor with КС-2,1 mover were compared.

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8

Chen, Wei Hua, and Yan Wei Chen. "Automatic Voltage Control and Application." Applied Mechanics and Materials 687-691 (November 2014): 3195–98. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.3195.

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Voltage is a key factor not only to power system but also to user. Keep voltage steady is a hot point for researching. Paper proposed keeping steady voltage and improving power quality by using intelligent auto voltage control system. This method is based on the existing power system software and hardware platforms. It is of the advantages of mature technology, small investment, and can improve user’s power quality effectively. Second, the application of auto voltage control on textile manufacture is analyzed. It can improve running environment of textile devices and textile quality

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9

Lv, Li Ya, and Yong Jun Min. "Power Batteries Pack Test System Based on GPIB Protocol." Advanced Materials Research 328-330 (September 2011): 614–18. http://dx.doi.org/10.4028/www.scientific.net/amr.328-330.614.

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A communication and data collection device was designed based on GPIB protocol, with the design of PC control and automatic measurement software, which can complete programmable electronic load control and ambient temperature data acquision, implementation of new energy vehicles for the automatic measurement of battery pack and Data records, simplifying test system design. The results show that the system operation and reliable performance, advanced features, can realize the new energy vehicle power battery pack automated testing of complex working conditions.

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10

Bairi, B. R., and D. Das. "Automatic Power Control System of Dhruva Nuclear Reactor." IFAC Proceedings Volumes 19, no. 16 (December 1986): 107–12. http://dx.doi.org/10.1016/s1474-6670(17)59367-2.

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11

Zabudskiy, E. I., and G. I. Balandina. "Automatic Control System for Power Grid Voltage Stabilization." Procedia Computer Science 103 (2017): 511–16. http://dx.doi.org/10.1016/j.procs.2017.01.039.

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12

Bakken, B. H., and O. S. Grande. "Automatic generation control in a deregulated power system." IEEE Transactions on Power Systems 13, no. 4 (1998): 1401–6. http://dx.doi.org/10.1109/59.736283.

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13

Prasolov, A. "DIGITAL AUTOMATIC GAIN CONTROL SYSTEM MODELING." Telecom IT 7, no. 2 (December 2019): 55–64. http://dx.doi.org/10.31854/2307-1303-2019-7-2-55-64.

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The goal of automatic gain control is to maintain a constant output power level. Automatic gain control systems are used in various communication systems, both analog and digital. However, for all the variety of digital automatic gain control algorithms, the adjustment of the control parameters during the simulation process in reality is often ignored. In practice, this can lead to long-term overloads with a large change of the input signal power. There is also the risk that the model used was designed to work in linear mode only. In nonlinear mode, its behavior may not always be predictable. Research subject. The purpose of this article is to analyze digital AGC system characteristics and to model its operation in Matlab. Method. As part of the study, a Matlab model of hybrid automatic gain control system was developed. Core results. It is shown that the control time of the digital automatic gain control system with a non-linear gain control characteristic does not depend on the amplitude of the input signal. The performance of the proposed digital model is limited by the dynamic range of the linear path and the analog-to-digital converter. The mathematical dependence of the response time of the model on the input signal level change is obtained, in which the time constant of the automatic gain control filter has been replaced by the time constant of the entire automatic gain control system. Practical relevance. A digital model of hybrid automatic gain control system is proposed, which will allow to simulate digital automatic gain control systems parameters for both small and large changes in the input signal level. The results of this work are relevant to the development of digital receivers for communication systems of various purposes.

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14

R, Chaitrashree S., Bhavana B. Raj, Spandana Y. N, and Ankitha R. "Automatic Street Light Control System." International Journal for Research in Applied Science and Engineering Technology 11, no. 6 (June 30, 2023): 4593–601. http://dx.doi.org/10.22214/ijraset.2023.54486.

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Abstract: Automatic Street Light Control System is a simple yet powerful concept, which uses transistor as a switch. By using this system manual works are 100% removed. It automatically switches ON lights when the sunlight goes below the visible region of our eyes. This is done by a sensor called infrared sensor (IR) which senses the light actually like our eyes. It automatically switches OFF lights whenever the sunlight comes, visible to our eyes. By using this system energy consumption is also reduced because nowadays the manually operated street lights are not switched off even the sunlight comes and also switched on earlier before sunset. In this project, no need of manual operation like ON time and OFF time setting. This project clearly demonstrates the working of transistor in saturation region and cut-off region.

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15

Domyshev, Aleksandr, Alexey Osak, and Kirill Zamula. "Flexible Hierarchical System of Automatic Voltage Control." EPJ Web of Conferences 217 (2019): 01002. http://dx.doi.org/10.1051/epjconf/201921701002.

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The subsystem for optimal control of voltage and reactive power of EPS is developed. The proposed solution uses state of art methods for state estimation, forecasting and dynamic optimization. A new architecture of an artificial neural network is proposed – a neuro-analytical network. Algorithms are proposed that allow reliable combination of classical automatic control methods and methods using machine learning. The proposed methodology is designed for use in a real power system for automatic voltage control.

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16

Kulakov, G. T., and K. I. Artsiomenka. "Synthesis of Boiler Controllers of the Automatic Power Control System of Power Units." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 63, no. 3 (May 28, 2020): 223–35. http://dx.doi.org/10.21122/1029-7448-2020-63-3-223-235.

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The article concerns the problem of structure-and-parametric optimization of a cascade automatic control system (CACS) by an example of a boiler power controller and a fuel controller. This CACS, which is a part of automatic control systems for power units, consists of two loops, viz. of an inner loop (which purpose is stabilization of the system) and an outer loop (designed for the adjustment) and, also, of two controller, viz. an outer controller (which is a basic one) provided for stabilization of the output value of the object (in our case, of the actual power unit capacity) and of an inner controller (which is an auxiliary one) provided to regulate fuel consumption. The internal controller builds up the control action with the aid of the boiler load controller of the power unit. As compared to single-loop automatic control systems, the cascade system provides better quality of transient control due to the higher performance of the internal loop of the system. This advantage is especially noticeable when compensating for disturbances that come through the channel of regulating impact. The article presents two methods of setting, viz. the fuel controller and the boiler power controller. The application of these methods can improve the quality of power control and reduce fuel consumption in transient modes in comparison with the setting of these controllers of a typical power unit automatic power control system. The results of computer simulation of transient processes in CACS for input step surge and internal perturbation confirm the advantages of the methods are presented in this article.

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17

Gupta, Nidhi, and Shaifali M. Arora. "A Novel Jaya Based Automatic Generation Control of Two Area Interconnected Power System with nonlinearity." Indian Journal Of Science And Technology 15, no. 47 (December 20, 2022): 2667–72. http://dx.doi.org/10.17485/ijst/v15i47.1430.

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18

Zhang, De Min, and Xue Hui Liang. "Elevator Brake Release Automatic Control System." Applied Mechanics and Materials 130-134 (October 2011): 3502–4. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.3502.

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The brake release electrical control board is a very important element of the elevator rescue operation control system. The brake release board provides a power supply to operate an elevator brake by a battery in rescue operation mode to allow a motion of a car until the next floor level to release any passengers. The brake release board has some buttons to operate the car and some LED’s to indicate the state of running. There are also some parameters in the board to adjust the operation.

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19

Kh Abduraimov, E. "Automatic control of reactive power compensation using a solid state voltage relays." Journal of Physics: Conference Series 2373, no. 7 (December 1, 2022): 072009. http://dx.doi.org/10.1088/1742-6596/2373/7/072009.

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Abstract The article discusses the issues of research & innovation of a gadget for automatic reactive power compensation, for automatic control of power supply system operating modes, based on the developed non-contact a solid state voltage relay with an adjustable return coefficient, which is shows its transience by the required strength and speed of action, including a part that reacts to changes in electrical parameters and high power executive body. A diagram with descriptions of the principle of operation, experimental characteristics and oscillograms are given. The invented device is proposed for application in reactive energy compensating devices of power supply systems as an automated power regulator of capacitive installations depending on voltage.

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20

Zhang, Yao Yuan, Zi Sheng Zhang, Jie Yu, Wei Guo, and Zhi Qing Liu. "The Power Plant Boiler Automatic Control Based on PLC." Applied Mechanics and Materials 235 (November 2012): 176–80. http://dx.doi.org/10.4028/www.scientific.net/amm.235.176.

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The power plant boiler automatic control system is designed on the basis of Siemens S7-200 in this paper. Based on the introduction of the Siemens S7-200 and the works of the boiler, the total power plant boiler control system is designed in details. Besides the initialized program is designed based on the input and output address of all the switches. The communication program is achieved, including the initialization of the program running parameters, the call of the system subroutine, the calculation of the checksum, the real-time data receiving process, etc. Finally, the heat energy is successfully and automaticly converted to the electricity in the boiler based on the PLC.

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21

Wang, Li, Haoxin Li, Jingkai Huang, Jinbin Zeng, Luxin Tang, Weibin Wu, and Yuanqiang Luo. "Research on and Design of an Electric Drive Automatic Control System for Mine Belt Conveyors." Processes 11, no. 6 (June 9, 2023): 1762. http://dx.doi.org/10.3390/pr11061762.

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Conveyor belts are widely used in ore transportation in large-scale mines for their long transportation range, high safety, and strong economic applicability. Coal mine belt conveyors are not only traditional, simple mechanical conveying devices but also automatic control system operating devices that integrate safety, stability, and low power consumption. In the process of coal mining, a conveyor belt control system also needs to be closely integrated with modern industrial systems and information systems, which greatly improves its work efficiency. The purpose of this article is to improve the methods for designing automatic control systems for electric motors in order to obtain mechanical characteristics close to a constant power line, which would ensure the reliable operation of belt conveyors. An automatic control system was designed based on the controller Siemens S7-1200; then, a mathematical model of an automated electric drive was developed. Based on the mathematical model, a simulation model of an automatic electric drive was built, and the modes were modeled. After designing, the obtained plots of transients completely corresponded to the required transients, which means that the Siemens frequency converter automatic control system (ACS) parameters were calculated quite accurately and the conveyor electric drive met all requirements.

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22

Yarn, Kao Feng, King Kung Wu, Kai Hsing Ma, and Wen Chung Chang. "Automatic Frequency-Tracking Control for Ultrasound Welding System." Advanced Materials Research 204-210 (February 2011): 2041–44. http://dx.doi.org/10.4028/www.scientific.net/amr.204-210.2041.

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A new frequency-tracking control method to catch the optimal working frequency for the high power ultrasonic welding system is proposed. In a high power ultrasonic resonant system, the induced high temperature will change the working frequency. Therefore, the proposed control method to track the optimal working frequency becomes very attractive and important. This control method is practically implemented by a FPGA chip which basically includes two logic circuits. One logic circuit is to find the optimal working frequency automatically and the other one is to adjust the working frequency by detecting the working current simultaneously. Experimental results exhibit the new method can effectively control and track frequency for high power ultrasonic welding system.

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23

Suhih, Nikolai, and Valentin Rukavishnikov. "Research of the Processes of Aircraft Director Control at Board Calculator Failure." Automation on transport 8, no. 2 (June 14, 2022): 121–32. http://dx.doi.org/10.20295/2412-9186-2022-8-2-121-132.

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It’s accepted to divide aircraft automatic control into semi-automatic (director) and automatic. Semi-automatic (director) systems provide for the collection and analysis of information, delivered from navigation equipment. On aircraft position in space and give a command to a pilot. Aircraft management with the help of such piloting-navigational systems is called semi-automatic because information collection and processing on aircraft condition is automated but the control’s left to be manual. Automatic control systems provide not just for information collection and processing on aircraft state but also for management laws as well as for control process itself. A man implements functions on automatic system work control, on identifying, making decisions on inclusion of this or that program, function of "hot" reserve. Present article shows experiment organization and obtained results on research of the processes of airplane director management while failures of board calculator of trajectory control system with real pilot inclusion into circuit. The research is held on the stage of aircraft approach and landing. The experiment was held on special bench of half-real modeling.

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24

Afanasov, A. M., S. V. Arpul, V. Y. Vasyliev, O. O. Hololobova, and S. M. Holik. "Automated Control Systems for Mutual Loads of Traction Electric Machines." Science and Transport Progress, no. 1(97) (October 17, 2022): 50–58. http://dx.doi.org/10.15802/stp2022/265336.

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Purpose. Testing of electric machines should be as objective as possible and contain reliable information about the quality of manufacture or repair of electric machines. During the tests, the parameters of the total power of the test bench sources, energy efficiency of each test process, the difference in thermal loads of the armature windings and excitation windings change. To perform the full test of the electric machine, it is necessary to equip test benches with systems for automatic control of the process of mutual loading. The analysis of different variants of automatic control systems is performed in the work. Methodology. Theoretical studies of electromagnetic processes using a mathematical model of the system “voltage source – traction motor” were performed. This system allows determining the energy performance of electric machines in the entire range of changes in loads and voltages during the tests. The methods of theoretical research and analytical calculation of electrical circuits, theoretical foundations of electrical engineering, mathematical modelling of electrical and energy processes were used in the analysis. Findings. The analysis of rational variants of functional schemes’ construction of automatic control systems with various quantity of power supplies, automatic control loops, mechanical and electric power converters is performed. Rational functional schemes of automatic control systems for testing various collector electric machines of direct and pulsating current are developed. Originality. Rational variants of construction of test benches with electric and mechanical moment converters taking into account variable processes of loading of electric cars during the test are offered. The analysis of energy efficiency of various variants of construction of test benches for testing electric machines in entire range of change of test loadings and voltage of power supplies in the case of using the automatic control system of mutual loading process is performed. Practical value. The conducted research will allow creating recommendations for the design of automated control systems for test benches in order to improve the technical and economic characteristics, reduce the consumption of electricity consumed for testing.

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25

Kalhoro, Imdad Hussain. "Automatic Generation Control of Single Area Hybrid Power System." Quaid-e-Awam University Research Journal of Engineering, Science & Technology 20, no. 1 (June 30, 2022): 102–9. http://dx.doi.org/10.52584/qrj.2001.13.

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In the power system, the load demand is continuously changing as per system requirement and the power system controller should efficiently compensate for the load requirement. The frequency instability may lead to equipment damage, load shedding, and possible blackouts, as a reason frequency is the most important design parameter to achieve the stability of a power system. The stable operation of an interconnected Hybrid Power System depends on a balance between production and consumption centers. To ensure system stability, different control techniques or control algorithms to compensate for the deviations in the system are employed but selecting the proper controller and its correct gain is tedious. In this research paper, the load frequency control of a single area hybrid power system is carried out using the Proportional-Integral and Derivative (PID) controller. The hybrid power system may consist of a renewable energy system (Wind/Solar) and a conventional interconnected power system (Thermal/Hydro). To obtain the optimal tuning of the PID controller, this research utilizes the PID Tuner from MATLAB. The performance of the PID controller for a single area hybrid power system will be analyzed for various load variation cases to show its effectiveness. The proposed PID-based governor provides better frequency control during load variations with smaller overshoot, undershoot, and short settling time of 10 seconds, as compared to P and PI.

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26

Hlaing, Nyein Nyein, and Toe Toe Hlaing. "Hybrid Power Remote Control Solar Car with Automatic Speed Control System." International Journal of Scientific and Research Publications (IJSRP) 9, no. 9 (September 6, 2019): p9309. http://dx.doi.org/10.29322/ijsrp.9.09.2019.p9309.

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27

Soorya Priya, G., and P. Sivakumar. "Analysis of Automatic Generation Control for Three Area Renewable Energy Interconnected Power System." Journal of Computational and Theoretical Nanoscience 17, no. 4 (April 1, 2020): 1976–84. http://dx.doi.org/10.1166/jctn.2020.8476.

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In recent days renewable energy plays a vital role in the world electrical energy in the form of standalone and grid connected. Grid connected renewable energy power systems are widely preferred because the energy storage devices are not essential for this power system. Maintaining frequency in an interconnected power system plays a significant role in quality of power. Automatic generation control plays a crucial role in maintaining power quality in an interconnected power system. In this paper, automatic generation control is analyzed for grid connected Solar power system and wind power system are interconnected with the conventional hydro thermal power system. The proposed system is analyzed using Matlab.

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28

Abduljabar Hasan, Ismail, Hassaan Th. H. Thabet, and Maysara A. Qasim. "Automatic Control of Power Transfer System using PLC Techniques." Journal of Engineering and Applied Sciences 14, no. 18 (November 10, 2019): 6791–99. http://dx.doi.org/10.36478/jeasci.2019.6791.6799.

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29

Hayashi, T. "Computerized Integrated Automatic Control System for Electric Power Networks." IFAC Proceedings Volumes 22, no. 17 (October 1989): 223–28. http://dx.doi.org/10.1016/s1474-6670(17)52933-x.

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30

Liu, Yi, Guohui Rao, Haoran Zhang, and Ruibo Shao. "Design and Implementation of HVDC System Power Automatic Control." IOP Conference Series: Materials Science and Engineering 611 (October 24, 2019): 012087. http://dx.doi.org/10.1088/1757-899x/611/1/012087.

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31

Postoyankova, K. Yu, V. I. Polishchuk, and A. A. Shuvalova. "SYNTHESIS OF AN AUTOMATED CONTROL SYSTEM FOR THE FLOW OF ACTIVE POWER ALONG A POWER LINE IN OVERLOAD CONDITION." Resource-Efficient Technologies, no. 3 (August 18, 2022): 1–5. http://dx.doi.org/10.18799/24056537/2021/3/316.

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Currently, there are practically no automated systems for controlling power flow within the specified limits when the power line is overloaded by active power. Regulation is assigned to the dispatchers of the power system or is carried out by means of emergency automation, which disconnects consumers. Therefore, an urgent task is to expand the arsenal of tools for automatic control of active power flow in overload mode. Relevance. A significant increase in electricity consumers leads to a complication of the electric power system. The workload for dispatching personnel is increasing. Maintaining the smooth operation of the elements of the power system is a very important and responsible task. In modern electric power industry, timely warning and elimination of overloads of network elements are relevant. The study aims are development and research of an intelligent automatic control system for the flow of active power along a power line based on the mathematical apparatus of fuzzy logic. The system is based on the use of the regulating effect of the load. Research methodology. Methods of calculating static load model during their actualization were used. The method of fuzzy sets was used in the construction of an intelligence control system for active power flows in overload condition. The effectiveness was estimated by expert methods. Results. The use of artificial intelligence methods for automatic regulation of transformer voltage under load allows up to 5–7 % reducing the flow of active power in overload mode.

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32

Postoyankova, K. Yu, V. I. Polishchuk, and A. A. Shuvalova. "SYNTHESIS OF AN AUTOMATED CONTROL SYSTEM FOR THE FLOW OF ACTIVE POWER ALONG A POWER LINE IN OVERLOAD CONDITION." Resource-Efficient Technologies, no. 3 (August 18, 2022): 1–5. http://dx.doi.org/10.18799/24056529/2021/3/316.

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Анотація:

Currently, there are practically no automated systems for controlling power flow within the specified limits when the power line is overloaded by active power. Regulation is assigned to the dispatchers of the power system or is carried out by means of emergency automation, which disconnects consumers. Therefore, an urgent task is to expand the arsenal of tools for automatic control of active power flow in overload mode. Relevance. A significant increase in electricity consumers leads to a complication of the electric power system. The workload for dispatching personnel is increasing. Maintaining the smooth operation of the elements of the power system is a very important and responsible task. In modern electric power industry, timely warning and elimination of overloads of network elements are relevant. The study aims are development and research of an intelligent automatic control system for the flow of active power along a power line based on the mathematical apparatus of fuzzy logic. The system is based on the use of the regulating effect of the load. Research methodology. Methods of calculating static load model during their actualization were used. The method of fuzzy sets was used in the construction of an intelligence control system for active power flows in overload condition. The effectiveness was estimated by expert methods. Results. The use of artificial intelligence methods for automatic regulation of transformer voltage under load allows up to 5–7 % reducing the flow of active power in overload mode.

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33

Zhuravlev, Sergey. "POWER EQUIOMENT CONTROL SYSTEM OF A SHUNTING LOCOMOTIVE WITH AUTOMATIC SPEED CONTROL ALGORITHM." Automation and modeling in design and management 2021, no. 3-4 (December 30, 2021): 31–38. http://dx.doi.org/10.30987/2658-6436-2021-3-4-31-38.

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Work objective is to develop an algorithm for automatic speed regulation and to ensure its integration into the system of adaptive combined control of the power equipment of the locomotive TEM7A. Research methods: methods of the theory of automatic control, modern programming methods, trial trips. Research results and novelty. For the first time, the problem of automatic maintenance of "creeping" train speeds with high accuracy has been solved in the practice of domestic locomotive construction. It is established that the developed algorithm for automatic control of the humping speed and splitting up of shunting locomotive TEM7A allows maintaining a given speed in the range of operating speeds up to 8 km / h. Conclusion. The developed algorithm is integrated into the microprocessor control system of the power equipment of TEM7A shunting locomotive and does not require additional costs when through the locomotive operation. Maintaining a uniform speed of movement can also be used in the mode of manual control of the locomotive by the driver, while the value of the stipulated rate is set by the driver using the display module of the control panel.

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34

Ghutke, Prof Pratik, Aakash ale Shankarp, Shubham Chintalwar, Nutankumar Harshe, Vyankatesh Bhavar,, Aditi Dhole, and Priyanka Betal. "Automatic Control System for Vehicle Parking." International Journal for Research in Applied Science and Engineering Technology 10, no. 5 (May 31, 2022): 1403–8. http://dx.doi.org/10.22214/ijraset.2022.42529.

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Abstract: Now a day’s vehicle parking is an important issue and day by day its necessity is increasing. In India we are still using the manual vehicle parking system and that is why we are facing problems like wastage of time and fuel finding free space around the parking ground when we need to park our car which requires a good amount of lighting. Another issue is chaos that happens while parking because there is no particular system anyone can park anywhere that sometime causes damage to the vehicles while moving out or in the parking lot. Security is also an issue there. To solve these problems we are introducing new car parking system. The system works as follows: The driver will place the vehicle in front of the garage door and there will be a monitor available where the number of available parking slots will be displayed. Keywords: Parking Slot, Arduino Uno, LCD display, IR sensor etc.

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Yan, Sen, Jing Qi Zhang, and Wei Zhi Diao. "Ball Mill Automatic Control System Design Based on Fuzzy PID Control." Applied Mechanics and Materials 441 (December 2013): 825–28. http://dx.doi.org/10.4028/www.scientific.net/amm.441.825.

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For ball mill grinding process random interference by many factors, processes complex mechanism, there is a big inertia and the lag, the fuzzy control theory is introduced into the mill control system, has strong robustness, can effectively overcome the mill main motor power nonlinear, time-varying factors such as interference. System is reliable, adjust speed, anti-interference ability, can better achieve constant power automatic control of the ball mill, with good application value.

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36

Allanson, D. R., W. B. Rowe, X. Chen, and A. Boyle. "Automatic dwell control in computer numerical control plunge grinding." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 211, no. 7 (July 1, 1997): 565–75. http://dx.doi.org/10.1243/0954405971516518.

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Accuracy in precision grinding is strongly affected by variations in the normal grinding force. The force gives rise to deflections of the machine, grinding wheel and workpiece. To allow relaxation of the deflection a dwell period is included at the end of the grinding cycle. Estimation of the time constant during grinding allows the automatic selection of the correct dwell time for the individual workpiece and current force level. A new strategy has been developed for the estimation of the time constant based on power measurement during dwell. The strategy employs the weighted least mean squares technique together with weightings based on classification of the power level into bands. The power bands are designed so as to employ lower weightings to be applied to power samples in the regions of the power curve most prone to causing an inaccurate estimate of the time constant. The complete system was implemented on an adaptive system comprising a PC and an Allen Bradley 8200 CNC (computer numerical controller). The time constant identification and dwell control algorithms were executed within the PC and synchronized to the grinding cycle executed under the control of the CNC. The system was successfully tested under laboratory and industrial conditions. It was shown to produce a reliable and accurate estimate of the time constant with workpieces exhibiting time constants in a range from 0.7 to 55 s. The system was shown to cope with this wide range of time constants without user intervention and to be tolerant of the high signal noise levels typically encountered in an industrial environment.

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37

Mikhailovich, Voronin Anatoli, Bekmurza Ajtchanov, Janusz Partyka, and Aldibekova Aitkul. "ELEMENTS OF AUTOMATIC CONTROL OF HYDRODYNAMIC SYSTEMS." Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska 3, no. 2 (May 16, 2013): 35–36. http://dx.doi.org/10.35784/iapgos.1449.

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The paper presents the automated system of control of certain elements of the hydrodynamic system related to the production of liquid milk. Similar systems may find application in various fields of engineering, such as: hydro power station construction; oil refineries construction; control systems in various chemical industries containing hydrogen atoms in the final product; in propellant flow rate systems, etc., whenever it is required to control hydrodynamic parameters by means of nuclear magnetic resonance on the relevant atoms of the products used.

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38

Vyngra, A. V., A. S. Sobolev, and S. G. Chernyi. "Automated control system for electric drives with integration of programmable relays and active filters." Transactions of the Krylov State Research Centre S-I, no. 2 (December 21, 2021): 53–59. http://dx.doi.org/10.24937/2542-2324-2021-2-s-i-53-59.

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This paper discusses relevant challenges in upgrade of control systems and reviews possible applications of new programmable relays OVEN PR10 for non-stop Ethernet data transmission. It also discusses integration of active power filters in feeding circuits of electric drives with upgraded automatic control systems. The study analyses the applications of active filters and suggests a testing system that consists of electric compressor drives and automated multi-channel control system with integrated active filters. The tests performed under this study have shown that automatic systems work more efficiently if they are fed by high-quality loading current from their electric drives and are governed by OVEN PLC110 programmable logic controllers. This paper also describes a case study: laboratory experiment on integrating active power filter for interharmonic current components with multi-channel drive control system based on cutting-edge programmable relay OVEN PR103. The results of this study could be useful for the upgrade of Russian fishing fleet, as well as for design and development of innovative ships.

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Ashryatov, A. A., V. G. Kulikov, and A. V. Panteleyev. "Energy saving control system development for external lighting." Indonesian Journal of Electrical Engineering and Computer Science 17, no. 3 (March 1, 2020): 1601. http://dx.doi.org/10.11591/ijeecs.v17.i3.pp1601-1606.

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Currently, energy saving requires the development of simple and efficient street lighting control systems. In order to create such a control system, it is necessary to develop an original principle of its operation. They considered the advantages of electronic starting devices in street lighting control systems. They performed the analysis of the existing state of street lighting means, their shortcomings and solutions have been determined, and they developed the method of lighting device automatic control. They performed the assessment of the economic effect from loss reduction associated with reactive power and due to power reduction during deep night. They presented the example of economic effect achievement from the use of an electronic starting device with automatic power reduction.

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40

Pranoto, Bayu, Chandra Gunawan, Hilmi Iman Firmansyah, Hangga Wicaksono, Andhika Angger Nugraha, and Muhammad Trifiananto. "Design And Control System of Automatic Control System of Coal Flow on Belt Conveyor Installation." Mekanika: Majalah Ilmiah Mekanika 20, no. 2 (September 30, 2021): 86. http://dx.doi.org/10.20961/mekanika.v20i2.51986.

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In a power plant unit whose main fuel is coal, there is generally use a belt conveyor installation. This conveyor belt serves to supply coal from the crusher unit to the combustion chamber of the power generation unit. In this study, we discuss a case where the installation of a belt conveyor which was initially only one line was then made a new branch that supplies coal to other power generating units. Equitable capacity distribution and continuity of coal distribution are the main focus of this study. Therefore, a design of automatic control system of coal flow divider on belt conveyor installation was designed. The working principle of this coal flow splitting system is to control the movement of the straight blade plough that directs the flow of coal to each unit at the certain time and continuously. Straight blade plough in the form of steel metal plate with a thickness of about 10 millimeters in which one end is connected to the end of the pneumatic cylinder. Automatic control system of coal flow divider in belt conveyor installation designed using CX-Programmer and CX-Designer applications. CX-Programmer serves to create automatic control logic concepts. While the CX-designer functions to create a Human Machine Interface (HMI), making it easier for operators to control the course of the coal supply process. The results of this study are in the form of control logic lines that can be applied to Programmable Logic Control (PLC) device and Human Machine Interface (HMI) equipment.

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Kobzev, Kirill, Sergey Vyalov, and Alexander Rybak. "Learning the basics of a battery pack control system." E3S Web of Conferences 164 (2020): 13006. http://dx.doi.org/10.1051/e3sconf/202016413006.

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The article discusses the control system of a hydraulic power source of constant pressure, which is a pump-storage power source, equipped with the original design of the automatic unloading of the hydraulic pump, which provides relay switching of its operation mode. A mathematical model is proposed, obtained using a modeling technique based on the application of the theory of volumetric rigidity of hydraulic systems and their elements. The results of a numerical experiment carried out by numerically solving the equations that make up the mathematical model of a power source are also presented. As a result of a numerical experiment, the main technical capabilities of the considered power source and the influence of its main structural parameters and functional features of the system on operational properties are revealed. The results showed that due to changes in various design parameters of the unloading machine, you can not only change the upper (maximum) and lower (minimum) values of the battery charging pressure, but also adjust their difference depending on the requirements for the power source. The main property of a power source with an automatic unloading device of the proposed design, confirmed as a result of a numerical experiment, is that the automatic unloading device provides a clear relay switching of the pump operation mode from unloading to operating mode and vice versa. The revealed properties make it very promising to use a pump-accumulator power source in the hydraulic systems of mobile machines and technological equipment.

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42

Zhan, Tao, Jian Xin Sun, and Hua Pu Chen. "Study on Automatic Active Power Control System of Wind Farms." Advanced Materials Research 860-863 (December 2013): 389–93. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.389.

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Based on a "wind power remote monitoring system" project, this paper focus on the modeling and simulation of the wind power variant pitch control system, and also the wind generator active power control OPC CLIENT interface programming. Using the VC++ language and MFC, OPC CLIENT interface was designed for the start-stop control of fan and the active power control of wind farms, which enables the wind farm to accurate and rapid response of the wind power grid load instruction of automatic generation control (AGC). Further, based on the MATLAB/SIMULINK platform, we analyzed the variable pitch control system of the variable pitch wind turbine by modeling and simulation with the Denmark's VESTAS V80-2000 (2MV).

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43

Saidova, Mukhabbat, Nodir Urinov, and Leonid Schwarzburg. "Development of the model of automatic control of energy intensity of technological processes and its application." IOP Conference Series: Earth and Environmental Science 839, no. 5 (September 1, 2021): 052031. http://dx.doi.org/10.1088/1755-1315/839/5/052031.

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Abstract The article covers the model for automatic compensation of reactive component of consumed current of asynchronous motors operating at powers lower than the nominal values. Automated control system for individual compensation of reactive component of power consumption have been designed, which is connected directly to asynchronous electric motors of machine tools.

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44

Golov, V. P., D. N. Kormilitsyn, and O. S. Sukhanova. "Analysis of influence of controlled high voltage line and automatic excitation control generators on oscillatory steady-state stability of electric-power system." Vestnik IGEU, no. 1 (February 28, 2022): 38–45. http://dx.doi.org/10.17588/2072-2672.2022.1.038-045.

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According to the rules of installation of electricity-generating equipment, synchronous machines (generators, compensators, electric motors) must be equipped with automatic excitation control devices. Their application has a positive effect on the stability indicators and electrical power-engineering system modes. Currently, the development of industry and an increase in the number of consumers require transmission capacity growth of existing 220 kV power transmission lines. The use of controlled series compensation devices can significantly increase the transmission capacity of a power transmission line, however, there is a problem of stable operation of the electric power-engineering system. To choose the methods for control parameters of automatic excitation control and controlled series compensation device, it is advisable to analyze the oscillatory steady-state stability of the electric power-engineering system that contain a controlled 220 kV power transmission line when regulating the excitation of its generators. Methods of mathematical modeling of the electric power system, the theory of long-distance power lines and electromechanical transients, methods of analyzing the stability of electric power systems are used. The original software in the C++ programming language has been used as a modeling tool. The authors have analyzed the influence of controlled series compensation of high voltage transmission line and generators of automatic excitation control on oscillatory steady-state stability of electric power system. The parameters value of regulation of the controlled series compensation device and the automatic excitation control are determined, considering restrictions while maintaining the positive influence of these devices. Zones of stability of the examined electric power-engineering system are formed depending on setup variable of the devices under consideration. The obtained results can be used to enhance oscillatory steady-state stability of electric power system with controlled series compensation device and automatic excitation control systems.

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45

Suhanto, Suhanto. "SIMULASI AUTOMATIC TRANSFER SWITCH DAN AUTOMATIC MAINS FAILURE DENGAN PLC OMRON SYSMAC CP1E." Journal of Mechanical Engineering and Mechatronics 4, no. 1 (April 11, 2019): 27. http://dx.doi.org/10.33021/jmem.v4i1.662.

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Electric power supply is the main requirement of equipment at the airport, therefore the reliability of the supply of power supplies is a top priority to support flight services. In addition to PLN as the main power supply the generator is used to supply a backup power supply. Automatic Transfer Switch (ATS) and Automatic Mains Failure (AMF) control systems are needed to regulate the switching of power supplies from PLN to Genset or vice versa. The ATS and AMF control systems use the Omron Sysmac CP1E PLC with a display using Easy Builder 8000 from Weintek which functions as an ATS and AMF monitor and control. Test results on ATS and AMF in manual and automatic modes, the system runs well. Keywords. Automatic Transfer Switch (ATS), Automatic Mains Failure (AMF), PLC

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46

Kotenev, Viktor I., Alexander V. Kotenev, and Alexander D. Stulov. "Power supply reactive power factor control as a function of consumer power and losses in transformers." Vestnik of Samara State Technical University. Technical Sciences Series 30, no. 4 (February 1, 2023): 142–57. http://dx.doi.org/10.14498/tech.2022.4.10.

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The system of automatic control of the reactive power factor of the enterprise's power supply system is considered, in which one part of the transformer substations is equipped with adjustable capacitor units, and the second is not. Its advantage in comparison with the power factor control system is shown, firstly, lower requirements for its error and, secondly, the calculation of the consumer with the supplier for electricity is made taking into account the ratio of reactive energy to active energy. An estimate of the error of regulation of the reactive power factor on the higher voltage side of the transformers of the main step-down substation, where settlement meters are installed, is given, with stabilization of the reactive power factor on the low voltage side of these transformers. The synthesis of the system of automatic control of the reactive power factor, built as a function of the power of consumers and power losses in transformers, and the estimation of its error are considered. The proposed control system is intended for power supply systems with a combined load, the use of which will allow the consumer to avoid penalty coefficients to the tariff for active electricity, and ultimately reduce losses in the transmission of electricity and increase the transmission capacity of the electrical network.

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47

Yu, Feng Wei, and Hong Ying Sun. "Research on the Automatic Synchronization Control of Marine Power Station." Advanced Materials Research 317-319 (August 2011): 1163–67. http://dx.doi.org/10.4028/www.scientific.net/amr.317-319.1163.

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Automatic synchronization is one of the important functions of marine power station management system. Grasping of ACB (air circuit breaker of generator) closing opportunity is the difficult and key point of automatic synchronization control. This paper offers a rapid and simple method of automatic synchronization control based on PLC and emphasizes on discussing a new method of grasping ACB closing opportunity in synchronization control. The system researched makes the best use of the computing function of PLC program and reduces the hardware as possible to improve the reliability and economical efficiency. Similar triangle principle and a new timing mode based on PLC scan cycle are adopted in grasping ACB closing opportunity. Several years of operation in training lab proved that the automatic synchronization system is reliable and steady.

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Fu, Jun Fang, Zhong Wang, Xing Tai Duan, Xin Nian Li, and Guo Feng Xie. "Automatic Current Sharing Technology in the DCS Power System Applications Research." Applied Mechanics and Materials 404 (September 2013): 575–79. http://dx.doi.org/10.4028/www.scientific.net/amm.404.575.

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This paper on the theory of fuzzy control in the automatic current sharing technology launched a study.Through two PH600S280 - 48 power modules in parallel power supply system, analysis to verify the control effect of automatic current sharing technology in the DCS power system.The control mode of simple structure, easy to expand, wide range of output voltage regulation and current sharing is good.It is an ideal and reliable load-sharing current control system for power supply modules in parallel power supply system.

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Sekhar, Mr J. Muni Chandra. "Automatic Grid Switch Control between Two Electrical Sources." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (June 20, 2021): 2055–59. http://dx.doi.org/10.22214/ijraset.2021.35450.

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This paper describes about the grid switch control system. The aim of the project is to provide a facility by which we can control the two power sources in the power grid. The purpose of the project is to provide a flexible system by which we can control the two DC power sources. Now days, there is a lot of requirements to control the appliances in an industry or in a home connected to the power grid when we are working. The main aim of the present project is to provide a facility by which we can control the DC power sources connected to the power grid. The only thing is we need to switch the button for a control board to the power control section. The control board which is attached to the power grid control section in the industry. This receives the commands to the microcontroller whenever there is a power cut from the main source. The microcontroller plays a major role in receiving the commands from the main source module and to switch from a Main DC source or from a Battery DC source which is fed to thee DC generator (Wind energy). The particular source is switched according to the command. Here in this project a power grid is connected to motor control unit. The project implements the design of a system by which we can control the power grid of two DC sources.

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Gokul, GRT, S. Madharasan, T. Manikandan, P. Praneeth, and MS P. Radhika. "Automatic Railway Gate Control System Using PLC." International Journal for Research in Applied Science and Engineering Technology 10, no. 12 (December 31, 2022): 1095–98. http://dx.doi.org/10.22214/ijraset.2022.48119.

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Abstract: The aim of this project is to develop a prototype that control the railway gate using PLC (PROGRAMMABLELOGIC CONTROLLER). Whenever train touches base at the IR sensor, caution is activated at the railway crossing so that the general population get instruction thatentryway will be shut. At that point the control module initiates and shuts the gates on either side of the track. Once the train crosses, this module naturally lifts the gate. For mechanical operation of a gate DC adapted engines are utilized. We are using PLC as a main control unit. Asper the instructions produced at the PLC, the proper action (i.e., shut or lift) will be made. This logic was implemented in PLC(Programmable Logic Controller)

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