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Статті в журналах з теми "Power system dynamic"

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Автор: Grafiati

Опубліковано: 14 березня 2023

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1

Madzharov, Nikolay D., Raycho T. Ilarionov, and Anton T. Tonchev. "System for Dynamic Inductive Power Transfer." Indian Journal of Applied Research 4, no. 7 (October 1, 2011): 173–76. http://dx.doi.org/10.15373/2249555x/july2014/52.

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2

KATAGIRI, Yukinori, Takuya YOSHIDA, and Tatsurou YASHIKI. "E208 AUTOMATIC CODE GENERATION SYSTEM FOR POWER PLANT DYNAMIC SIMULATORS(Power System-2)." Proceedings of the International Conference on Power Engineering (ICOPE) 2009.2 (2009): _2–401_—_2–406_. http://dx.doi.org/10.1299/jsmeicope.2009.2._2-401_.

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3

C, Shilaja. "Identifying and Detecting Dynamic Island in DG Connected Power System." Journal of Advanced Research in Dynamical and Control Systems 12, SP7 (July 25, 2020): 744–49. http://dx.doi.org/10.5373/jardcs/v12sp7/20202164.

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4

Neuman, P., K. Máslo, B. Šulc, and A. Jarolímek. "Power System and Power Plant Dynamic Simulation." IFAC Proceedings Volumes 32, no. 2 (July 1999): 7294–99. http://dx.doi.org/10.1016/s1474-6670(17)57244-4.

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5

Ponnala, Ravi. "Dynamic Power System Monitoring and Protection Using Phasor Measurements and Less Data Storage System." Journal of Advanced Research in Dynamical and Control Systems 12, SP8 (July 30, 2020): 625–36. http://dx.doi.org/10.5373/jardcs/v12sp8/20202564.

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6

Ma, Feng, and Vijay Vittal. "Right-Sized Power System Dynamic Equivalents for Power System Operation." IEEE Transactions on Power Systems 26, no. 4 (November 2011): 1998–2005. http://dx.doi.org/10.1109/tpwrs.2011.2138725.

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7

Gulati, Navneet, and Eric J. Barth. "Dynamic Modeling of a Monopropellant-Based Chemofluidic Actuation System." Journal of Dynamic Systems, Measurement, and Control 129, no. 4 (October 17, 2006): 435–45. http://dx.doi.org/10.1115/1.2718243.

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Анотація:

This paper presents a dynamic model of a monopropellant-based chemofluidic power supply and actuation system. The proposed power supply and actuation system, as presented in prior works, is motivated by the current lack of a viable system that can provide adequate energetic autonomy to human-scale power-comparable untethered robotic systems. As such, the dynamic modeling presented herein is from an energetic standpoint by considering the power and energy exchanged and stored in the basic constituents of the system. Two design configurations of the actuation system are presented and both are modeled. A first-principle based lumped-parameter model characterizing reaction dynamics, hydraulic flow dynamics, pneumatic flow dynamics, and compressible gas dynamics is developed for purposes of control design. Experimental results are presented that validate the model.

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8

Sun, Shu Xia, Xiang Jun Zhu, and Ming Ming Wang. "Power Turret the Dynamics Simulation Analysis of Power Turret." Applied Mechanics and Materials 198-199 (September 2012): 133–36. http://dx.doi.org/10.4028/www.scientific.net/amm.198-199.133.

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The dynamic performance of the CNC turret affect the cutting capability and cutting efficiency of the NC machine tool directly, embody the core level of the design and manufacture of the NC machine tool. However, the dynamic performance of the CNC turret mostly decided by the dynamic performance of the power transmission system of the power turret. This passage use Pro/E to set the accurate model of the gears and the CAD model of the gear transmission system and based on this to constitute the ADAMS model of virtual prototype. On the many-body contact dynamics theory basis, dynamic describes the process of the mesh of the gears, work out the dynamic meshing force under the given input rotating speed and loading, and the vibration response of the gear system. The simulation result disclosure the meshing shock excitation and periodical fluctuation phenomena arose by stiffness excitation of the gear transmission. Analyses and pick-up the radial vibration response of the output gear of the gear transmission system as the feasibility analysis data.

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9

Zhang, Qiang, Bao Li, Quan Yuan, Mingfu Lu, and Xinlei Huang. "Database dynamic update management system for power system." Journal of Physics: Conference Series 1550 (May 2020): 052001. http://dx.doi.org/10.1088/1742-6596/1550/5/052001.

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10

Gharban, C. K., and B. J. Cory. "Nonlinear Dynamic Power System State Estimation." IEEE Power Engineering Review PER-6, no. 8 (August 1986): 54–55. http://dx.doi.org/10.1109/mper.1986.5527808.

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11

Zhao, Fang, Mu Yi Lin, and Zhun Wang. "On Hydraulic Brake System Using Bench Experiments for Off-Road Vehicles." Advanced Materials Research 588-589 (November 2012): 327–30. http://dx.doi.org/10.4028/www.scientific.net/amr.588-589.327.

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The full power hydraulic brake system has several advantages over traditional brake actuation systems. These systems are capable of supplying fluid to a range of very small and large volume service brakes with actuation that is faster than air/hydraulic brake systems. Implementation of full power hydraulic brake system in off-road vehicles calls for good understanding of its dynamic characteristics. In this paper, we consider the problem of dynamic modeling of the brake system and develop a dynamic model for a hydraulic brake valve. First, the dynamic characteristics of full power hydraulic brake system are analyzed theoretically. The effects of varying design parameters (brake valve, accumulator and so on) and the different operating conditions are then analyzed. Second, we investigate the dynamic characteristics of a full power hydraulic brake system using a test bench, which is a loader brake system specifically designed for one construction Machinery Company. Finally, based on the experimental results, the mathematical models are amended and verified. The result shows that the model-calculated data agree well with tested data. The dynamic behavior of hydraulic valve can be well predicted with the model. The simplified models can be applied to the studies of full power hydraulic brake system dynamics.

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12

Chen, Gonggui. "Dynamic Optimal Power Flow in FSWGs Integrated Power System." Information Technology Journal 10, no. 2 (January 15, 2011): 385–93. http://dx.doi.org/10.3923/itj.2011.385.393.

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13

He, Ping, Fushuan Wen, Gerard Ledwich, Yusheng Xue, and Kewen Wang. "Effects of various power system stabilizers on improving power system dynamic performance." International Journal of Electrical Power & Energy Systems 46 (March 2013): 175–83. http://dx.doi.org/10.1016/j.ijepes.2012.10.026.

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14

B. Alsammak, Ahmed Nasser. "Direct Detection of Voltage Collapse in Electrical Power System." Tikrit Journal of Engineering Sciences 18, no. 1 (March 31, 2011): 29–44. http://dx.doi.org/10.25130/tjes.18.1.03.

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Анотація:

Voltage stability is indeed a dynamic problem. Dynamic analysis is important forbetter understanding of voltage instability process. In this work an analysis for voltagestability from bifurcation and voltage collapse point of view based on a centermanifold voltage collapse model. A static and dynamic load models were used toexplain voltage collapse. The basic equations of simple power system and load areused to demonstrate voltage collapse dynamics and bifurcation theory. Theseequations are also developed in a manner, which is suitable for the Matlab-Simulinkapplication. Detection of voltage collapse before it reaches the critical collapse pointwas obtained in simulation results.

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15

Huang, Cong-Hui, and Chia-Hung Lin. "Multiple Chaos Synchronization System for Power Quality Classification in a Power System." Scientific World Journal 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/902167.

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This document proposes multiple chaos synchronization (CS) systems for power quality (PQ) disturbances classification in a power system. Chen-Lee based CS systems use multiple detectors to track the dynamic errors between the normal signal and the disturbance signal, including power harmonics, voltage fluctuation phenomena, and voltage interruptions. Multiple detectors are used to monitor the dynamic errors between the master system and the slave system and are used to construct the feature patterns from time-domain signals. The maximum likelihood method (MLM), as a classifier, performs a comparison of the patterns of the features in the database. The proposed method can adapt itself without the need for adjustment of parameters or iterative computation. For a sample power system, the test results showed accurate discrimination, good robustness, and faster processing time for the detection of PQ disturbances.

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16

Zhang Shuaiyu, Hu Guohang, Wang Lin, Liu Yongjiang, Wei Ling, Zheng Yifan, and Shao Yuchuan. "Wireless Laser Power Transmission System for Dynamic Target Using Rotation of Single Component." Laser & Optoelectronics Progress 59, no. 17 (2022): 1736001. http://dx.doi.org/10.3788/lop202259.1736001.

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17

Perez, L. G., A. J. Flechsig, and V. Venkatasubramanian. "Modeling the protective system for power system dynamic analysis." IEEE Transactions on Power Systems 9, no. 4 (1994): 1963–73. http://dx.doi.org/10.1109/59.331457.

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18

Zhang, Chun Long, and Bin Wu. "Research on Power Management Control Strategy for Photovoltaic Power System." Applied Mechanics and Materials 513-517 (February 2014): 3438–41. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.3438.

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A novel power management control strategy for photovoltaic power system is proposed. The solar cell array powers the steady state energy and the battery compensates the dynamic energy in the system. The goal of the power management control strategy is to control the un-directional DC-DC converter and bi-direction DC-DC converter to operate in suitable modes according to the condition of solar cell and battery, so as to coordinate the two sources of solar cell and battery supplying power and ensure the system operates with high efficiency and behaviors with good dynamic performance. A 500W experimental prototype of photovoltaic power system was built in the lab. Experimental results are shown to verify the effectiveness of the proposed power management strategy..

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19

Morcillo, José D., Fabiola Angulo, and Carlos J. Franco. "Analyzing the Hydroelectricity Variability on Power Markets from a System Dynamics and Dynamic Systems Perspective: Seasonality and ENSO Phenomenon." Energies 13, no. 9 (May 9, 2020): 2381. http://dx.doi.org/10.3390/en13092381.

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In this paper, the variations in hydropower generation are addressed considering the seasonality and ENSO (El Niño-Southern Oscillation) episodes. The dynamic hypothesis and the stock-flow structure of the Colombian electricity market were analyzed. Moreover, its dynamic behavior was analyzed by using Dynamic Systems tools aimed at providing deep insight into the system. The MATLAB/Simulink model was used to evaluate the Colombian electricity market. Since we combine System Dynamics and Dynamic Systems, this methodology provides a novel insight and a deeper analysis compared with System Dynamics models and can be easily implemented by policymakers to suggest improvements in regulation or market structures. We also provide a detailed description of the Colombian electricity market dynamics under a broad range of demand growth rate scenarios inspired by the bifurcation and control theory of Dynamic Systems.

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20

Deltuva, Ramūnas, Robertas Lukočius, and Konstantinas Otas. "Dynamic Stability Analysis of Isolated Power System." Applied Sciences 12, no. 14 (July 18, 2022): 7220. http://dx.doi.org/10.3390/app12147220.

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The islanded mode of operation of an electric power system (EPS) that has generation capabilities provided by conventional thermal power plants, by a pumped-storage power station, or from an interlink with a neighboring electric power system through an HVDC BtB converter is addressed in this paper. The risk for electrical power systems to fall into an islanded mode has recently grown, as it is caused not just by technical reasons but by a geopolitical situation as well. The current strains demand the close consideration of problems related to EPS operation in an islanded mode. This paper considers several. The research covers the following issues. The response of the islanded system to a sudden and spasmodic load change is analyzed in cases when the system deals with the disturbance with internal resources alone and with the help of an HVDC BtB converter’s frequency control functionality. Analysis of the impact of the settings of the HVDC BtB converter on the system’s response to disturbances is presented and the optimal set of parameters found. The impact of the system’s extended inertia on the system’s response is evaluated by using an additional unit of the pumped-storage power station in synchronous condenser mode. Transients in the system when switching a unit operating in synchronous condenser mode on and off are analyzed. The capability of the system to withstand major disturbances, such as disconnection of the pumped-storage power station’s unit operating in a pump mode and disconnection of the HVDC BtB converter in emergency modes, if a situation demands, is researched. The research is carried out by numerical simulations using PSS Sincal Electricity Basic software. Updated operating parameters of the isolated power system and the LCC HVDC BtB converter, as well as frequency control automation provided by ABB, were used in the simulations.

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21

Muljono, Agung Budi, I. Made Ginarsa, and I. Made Ari Nrartha. "Dynamic Stability Improvement of Multimachine Power Systems using ANFIS-based Power System Stabilizer." TELKOMNIKA (Telecommunication Computing Electronics and Control) 13, no. 4 (December 1, 2015): 1170. http://dx.doi.org/10.12928/telkomnika.v13i4.2049.

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22

Seo, Gyu-Seok, Ji-Ho Park, and Ki-Jin Kwon. "Power System Stability Analysis Considering Dynamic Loads." Journal of the Korea Academia-Industrial cooperation Society 13, no. 9 (September 30, 2012): 4146–51. http://dx.doi.org/10.5762/kais.2012.13.9.4146.

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23

Yamagishi, Yoshio, and Shintaro Komami. "Practical Power System Aggregation Considering Dynamic Loads." IEEJ Transactions on Power and Energy 128, no. 2 (2008): 381–87. http://dx.doi.org/10.1541/ieejpes.128.381.

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24

Taylor, Joshua A., Ashutosh Nayyar, Duncan S. Callaway, and Kameshwar Poolla. "Consolidated Dynamic Pricing of Power System Regulation." IEEE Transactions on Power Systems 28, no. 4 (November 2013): 4692–700. http://dx.doi.org/10.1109/tpwrs.2013.2268391.

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25

Bogdan Proca, Amuliu, and Ali Keyhani. "Identification of power steering system dynamic models." Mechatronics 8, no. 3 (April 1998): 255–70. http://dx.doi.org/10.1016/s0957-4158(98)00003-8.

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26

Kurita, A., H. Okubo, K. Oki, S. Agematsu, D. B. Klapper, N. W. Miller, W. W. Price, J. J. Sanchez-Gasca, K. A. Wirgau, and T. D. Younkins. "Multiple time-scale power system dynamic simulation." IEEE Transactions on Power Systems 8, no. 1 (1993): 216–23. http://dx.doi.org/10.1109/59.221237.

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27

Ostojic, D. R. "Spectral monitoring of power system dynamic performances." IEEE Transactions on Power Systems 8, no. 2 (May 1993): 445–51. http://dx.doi.org/10.1109/59.260841.

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28

de la O Serna, JosÉ Antonio. "Dynamic Phasor Estimates for Power System Oscillations." IEEE Transactions on Instrumentation and Measurement 56, no. 5 (October 2007): 1648–57. http://dx.doi.org/10.1109/tim.2007.904546.

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29

Gharban, C. K., and B. J. Cory. "Non-Linear Dynamic Power System State Estimation." IEEE Transactions on Power Systems 1, no. 3 (1986): 276–83. http://dx.doi.org/10.1109/tpwrs.1986.4334994.

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30

Čukalevski, N., M. Ćalović, and J. Medanić. "Dynamic observer-based power system emergency control." International Journal of Electrical Power & Energy Systems 8, no. 3 (July 1986): 137–45. http://dx.doi.org/10.1016/0142-0615(86)90028-1.

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31

Irwanto, Muhamad, N. Gomesh, Y. M. Irwan, F. Malek, M. R. Mamat, Hermansyah Alam, and M. Masri. "Improvement of Power System Dynamic Stability Based on Fuzzy Logic Power System Stabilizer (FLPSS)." Applied Mechanics and Materials 793 (September 2015): 139–43. http://dx.doi.org/10.4028/www.scientific.net/amm.793.139.

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Анотація:

Generally this project is to improve the dynamic power system stability using fuzzy logic power system stabilizer (FLPSS) which applied to the excitation system. This research is started by electric power system mathematic modelling (state variable equation) and block diagram then set membership function of fuzzy logic power system stabilizer (FLPSS). Block diagram model (plant system) is formed from state variable equation. The plant is controlled by fuzzy logic power system stabilizer (FLPSS) which its input and output from the rotor speed and to excitation system, respectively. To observe the oscillation of dynamic power system stability, the electrical power is varied ± 0.1 pu (positive and negative value indicate an increasing and decreasing electrical power, respectively). The result shows that using FLPSS, the oscillation of dynamic power system can be improved. The overshoot of electric power and rotor speed change oscillation after the disturbance is smaller than the conventional, and also the time to reach the steady state is faster.

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32

JONAITIS, Audrius, Renata MILIUNE, and Tomas DEVEIKIS. "Dynamic model of wind power balancing in hybrid power system." TURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES 25 (2017): 222–34. http://dx.doi.org/10.3906/elk-1410-163.

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33

Abdollahi Biroon, Roghieh, Pierluigi Pisu, and David Schoenwald. "Frequency Control of Large-Scale Interconnected Power Systems via Battery Integration: A Comparison between the Hybrid Battery Model and WECC Model." Energies 14, no. 18 (September 7, 2021): 5605. http://dx.doi.org/10.3390/en14185605.

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The increasing penetration of renewable energy sources in power grids highlights the role of battery energy storage systems (BESSs) in enhancing the stability and reliability of electricity. A key challenge with the renewables’, specially the BESSs, integration into the power system is the lack of proper dynamic models and their application in power system analyses. The control design strategy mainly depends on the system dynamics which underlines the importance of the system accurate dynamic modeling. Moreover, control design for the power system is a complicated issue due to its complexity and inter-connectivity, which makes the application of distributed control to improve the stability of a large-scale power system inevitable. This paper presents an optimal distributed control design for the interconnected systems to suppress the effects of small disturbances in the power system employing utility-scale batteries based on existing battery models. The control strategy is applied to two dynamic models of the battery: hybrid model and Western electricity coordinating council (WECC) model. The results show that (i) the smart scheduling of the batteries’ output reduces the inter-area oscillations and improves the stability of the power systems; (ii) the hybrid model of the battery is more user-friendly compared to the WECC model in power system analyses.

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34

Massardo, Aristide. "High-Efficiency Solar Dynamic Space Power Generation System." Journal of Solar Energy Engineering 113, no. 3 (August 1, 1991): 131–37. http://dx.doi.org/10.1115/1.2930484.

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Анотація:

Space power technologies have undergone significant advances over the past few years, and great emphasis is being placed on the development of dynamic power systems at this time. A design study has been conducted to evaluate the applicability of a combined cycle concept—closed Brayton cycle and organic Rankine cycle coupling—for solar dynamic space power generation systems. In the concept presented here (solar dynamic combined cycle), the waste heat rejected by the closed Brayton cycle working fluid is utilized to heat the organic working fluid of an organic Rankine cycle system. This allows the solar dynamic combined cycle efficiency to be increased compared to the efficiencies of two subsystems (closed Brayton cycle and organic fluid cycle). Also, for small-size space power systems (up to 50 kW), the efficiency of the solar dynamic combined cycle can be comparable with Stirling engine performance. The closed Brayton cycle and organic Rankine cycle designs are based on a great deal of maturity assessed in much previous work on terrestrial and solar dynamic power systems. This is not yet true for the Stirling cycles. The purpose of this paper is to analyze the performance of the new space power generation system (solar dynamic combined cycle). The significant benefits of the solar dynamic combined cycle concept such as efficiency increase, mass reduction, specific area—collector and radiator—reduction, are presented and discussed for a low earth orbit space station application.

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35

Zhu, Wanlu, Chunpeng Jin, and Zhengzhuo Liang. "Hybrid Modeling and Simulation for Shipboard Power System Considering High-Power Pulse Loads Integration." Journal of Marine Science and Engineering 10, no. 10 (October 16, 2022): 1507. http://dx.doi.org/10.3390/jmse10101507.

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Анотація:

The complex dynamic characteristics of a shipboard power system (SPS) are not only related to its continuous dynamics but also influenced by discrete control behavior. Especially, during combat mission execution of high-power pulse loads (HPPLs), their operation plan as a sequence of discrete control events will cause successive abrupt changes in the continuous dynamics of SPS due to the sudden and intermittent nature of the external attacks, which requires overall comprehension of the hybrid dynamics evolution process driven by discrete events. In this paper, considering the zonal distribution structure of SPS and the influences of extreme events on the discrete dynamics of each zone, the extended hybrid models for each zone, including normal operation configuration and fault configuration, are obtained based on the hybrid automata theory. Then, the global hybrid model of SPS is developed. The mapping relationship of discrete state transition to the continuously controlled system is analyzed to reconstruct the set of differential equations model of the continuous system for the purpose of simulation. Two case studies are carried out to perform the simulation under the proposed hybrid model. It is demonstrated that this proposed method can reveal the operating characteristics of the hybrid dynamic evolution process driven by discrete events, both in normal operation and pulse loads operation. Although the precise measure of discrete states of SPS can be challenging to obtain, especially during the confrontation phase, the proposed method still provides valuable insights on evaluating the sophisticated dynamics of an SPS.

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36

Ponci, F., L. Cristaldi, M. Faifer, and M. Riva. "Multi agent systems: An example of power system dynamic reconfiguration." Integrated Computer-Aided Engineering 17, no. 4 (October 15, 2010): 359–72. http://dx.doi.org/10.3233/ica-2010-0353.

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37

Li, Shengqiang, Xiaodong Liang, and Wilsun Xu. "Modeling DC Motor Drive Systems in Power System Dynamic Studies." IEEE Transactions on Industry Applications 51, no. 1 (January 2015): 658–68. http://dx.doi.org/10.1109/tia.2014.2336972.

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38

Mehar, Pramod Kumar, and Mrs Madhu Upadhyay. "Power System Stability Study on Multi Machine Systems having DFIG Based Wind Generation System." SMART MOVES JOURNAL IJOSCIENCE 6, no. 3 (March 10, 2020): 27–30. http://dx.doi.org/10.24113/ijoscience.v6i3.279.

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Анотація:

Power system stability is related to principles of rotational motion and the swing equation governing the electromechanical dynamic behavior. In the special case of two finite machines the equal area criterion of stability can be used to calculate the critical clearing angle on the power system, it is necessary to maintain synchronism, otherwise a standard of service to the consumers will not be achieved. With the increasing penetration of doubly fed induction generators (DFIGs), the impact of the DFIG on transient stability attracts great attention. Transient stability is largely dominated by generator types in the power system, and the dynamic characteristics of DFIG wind turbines are different from that of the synchronous generators in the conventional power plants. The analysis of the transient stability on DFIG integrated power systems has become a very important issue. This paper is a review of three types of stability condition. The first type of stability, steady state stability explains the maximum steady state power and the power angle diagram. There are several methods to improve system stability in which some methods are explained.

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39

Mo, Shuai, Ting Zhang, Guoguang Jin, Zhanyong Feng, Jiabei Gong, and Shengping Zhu. "Dynamic Characteristics and Load Sharing of Herringbone Wind Power Gearbox." Mathematical Problems in Engineering 2018 (October 31, 2018): 1–24. http://dx.doi.org/10.1155/2018/7251645.

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In this study, the dynamic model for the herringbone planetary gear transmission system is established by the lumped parameter method based on the system dynamics and the Lagrange equation, and the impact of the support stiffness and the torsional stiffness on dynamic characteristics is studied. The research results have a guiding significance for the design of the herringbone gear transmission system. In this model, the herringbone gear is treated as a special gear coupled by 2 opposite helical gears, where the stagger angle, comprehensive meshing error, support stiffness, support damping, and load inertia are considered in the analysis of dynamics. Moreover, the dynamic characteristic of the carrier is considered as well. By calculating the meshing force curve of the transmission system, the impact of the stagger angle, supporting stiffness, and the torsional stiffness on meshing force and load sharing coefficient is analyzed. The results show that the stagger angle has an obvious impact on load sharing coefficient while it has little impact on maximum meshing force. And the support stiffness has a more obvious impact on the dynamic characteristics of the system. The recommendary support stiffness of the system is that all of the support stiffness of the sun gear, planetary gear, ring gear, and carrier is 107 N/m. The torsional stiffness has little impact on the dynamic characteristics of transmission system, except the torsional stiffness of planetary gear, and carrier has an obvious impact on load sharing coefficient. The commercial software ADAMS carried out dynamics analysis of the transmission system to verify the necessity validity of the theoretical analysis.

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40

Farooq, Zahid, Asadur Rahman, S. M. Suhail Hussain, and Taha Selim Ustun. "Power Generation Control of Renewable Energy Based Hybrid Deregulated Power System." Energies 15, no. 2 (January 12, 2022): 517. http://dx.doi.org/10.3390/en15020517.

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This work presents the power generation control of a two-area, hybrid, deregulated power system integrated with renewable energy sources (RES). The incorporation of appropriate system non-linearities and RES into the power system makes it complex, but more practical. The hybrid deregulated power system with RES is a complex nonlinear system that regularly exposes the major issue of system dynamic control due to insufficient damping under varying loading circumstances. The generation-demand equilibrium point of the power system varies following a contingency; hence, it becomes difficult to maintain the appropriate equilibrium point via traditional control approaches. To solve this problem, novel control approaches, along with rapid-acting energy storage devices (ESD), are immediate need for advanced power systems. As a result, various secondary controllers are inspected for improvements in system dynamics. A performance comparison infers the cascaded ID-PD controller as the optimum one. The secondary controller gains are successfully optimized by the powerful satin bowerbird optimization (SBO) technique. Additionally, the impact of a super-conducting-magnetic-energy-storage (SMES) device in system dynamics and control of developed power system is analyzed in this study. A sensitivity evaluation (SE) infers that SBO-optimized cascaded ID-PD controller gains are strong enough for alterations in load perturbations, system loading, inertial constant (H), solar irradiance and the DISCO involvement matrix (DIM).

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41

Chen, Jing, and Yu Yung Ke. "A Dynamic Power Management Mechanism for Embedded System with Micro-Kernel Operating System." Applied Mechanics and Materials 325-326 (June 2013): 916–21. http://dx.doi.org/10.4028/www.scientific.net/amm.325-326.916.

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As mobile devices of embedded systems prevail in our daily life, energy saving emerges as one very important issue and power management techniques are desirable. This paper presents the design and the implementation of a dynamic power management mechanism (DPMM) for embedded systems running micro-kernel operating systems. The DPMM is composed of policy manager, DVFS (Dynamic Voltage Frequency Scaling) controller, DPM (Dynamic Power Management) server, resource management flags, and DPM library. They are imple-mented to execute on an embedded system platform equipped with an XScale PXA270 processor and various I/O interfaces or devices running Zinix micro-kernel operating system. Testing results indicate that this DPMM effectively achieves power management in the system.

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Wang, Sijia, Xiangyu Wu, Gang Chen, and Yin Xu. "Small-Signal Stability Analysis of Photovoltaic-Hydro Integrated Systems on Ultra-Low Frequency Oscillation." Energies 13, no. 4 (February 24, 2020): 1012. http://dx.doi.org/10.3390/en13041012.

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In recent years, ultralow-frequency oscillation has repeatedly occurred in asynchronously connected regional power systems and brought serious threats to the operation of power grids. This phenomenon is mainly caused by hydropower units because of the water hammer effect of turbines and the inappropriate Proportional-Integral-Derivative (PID) parameters of governors. In practice, hydropower and solar power are often combined to form an integrated photovoltaic (PV)-hydro system to realize complementary renewable power generation. This paper studies ultralow-frequency oscillations in integrated PV-hydro systems and analyzes the impacts of PV generation on ultralow-frequency oscillation modes. Firstly, the negative damping problem of hydro turbines and governors in the ultralow-frequency band was analyzed through the damping torque analysis. Subsequently, in order to analyze the impact of PV generation, a small-signal dynamic model of the integrated PV-hydro system was established, considering a detailed dynamic model of PV generation. Based on the small-signal dynamic model, a two-zone and four-machine system and an actual integrated PV-hydro system were selected to analyze the influence of PV generation on ultralow-frequency oscillation modes under different scenarios of PV output powers and locations. The analysis results showed that PV dynamics do not participate in ultralow-frequency oscillation modes and the changes of PV generation to power flows do not cause obvious changes in ultralow-frequency oscillation mode. Ultra-low frequency oscillations are mainly affected by sources participating in the frequency adjustment of systems.

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43

Ahsan, Luqman, and M. Iqbal. "Dynamic Modeling of an Optimal Hybrid Power System for a Captive Power Plant in Pakistan." Jordan Journal of Electrical Engineering 8, no. 2 (2022): 195. http://dx.doi.org/10.5455/jjee.204-1644676329.

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This paper presents the optimized design, economic feasibility and dynamic modeling of a grid-tied captive hybrid renewable energy power plant for a Pakistani industrial area. Since the proposed plant, encompasses a photovoltaic (PV) array - as its main component - and for an efficient and reliable operation many issues - including industrial load variations and expected dynamics - should be investigated before its implementation. In this context, Homer Pro software is utilized in the design and economic optimized sizing of the PV array, and the PVWatts is used in land requirement analysis. The designed grid-tied plant is modeled in the MATLAB/Simulink using Simscape blocksets to investigate the plant’s dynamic behavior due to typical practical disturbances. The obtained results reveal that the plant has a low per-unit energy cost and provides significant savings. Results of dynamic simulation show that the plant can respond to the ramp-up and ramp-down load variations in industrial settings. Moreover, the plant has a fast response to step changes in irradiance; proving that the proposed plant is reliable and suitable candidate for fulfilling the designated load.

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44

Pavlovsky, V. V., L. M. Lukianenko, A. O. Steliuk, and P. S. Horoshko. "QUASI-DYNAMIC MODEL OF THE INTERCONNECTED POWER SYSTEM OF UKRAINE FOR A FREQUENCY STABILITY STUDY." Praci Institutu elektrodinamiki Nacionalanoi akademii nauk Ukraini 2022, no. 63 (November 21, 2022): 22–25. http://dx.doi.org/10.15407/publishing2022.63.022.

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Significant integration of renewables into Ukraine's interconnected power system (IPS) requires developing the appro-priate quasi-dynamic (QD) model to study power system operation in such conditions. The work aims to create a QD model of the IPS of Ukraine considering renewables and consumption profiles of the Ukrainian IPS for the winter and summer character days. The corresponding approach to such a model development is presented in the paper. The load flow series simulation results based on the quasi-dynamic approach are also shown. Additionally, the frequency stabil-ity study results for the Ukrainian power system are depicted. Ref. 6, fig. 6.

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45

Wang, Yan Ling, and Xiao Feng Zhou. "Master-Slave Joint Power Flow with Wind Power Generators." Applied Mechanics and Materials 668-669 (October 2014): 745–48. http://dx.doi.org/10.4028/www.scientific.net/amm.668-669.745.

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First based on the analysis of dynamic characteristics of wind power generators, the uniform extended flow model for transmission-distribution joint with wind power generators is derived. The master-slave decomposition and coordination solving methods is proposed. Master-slave system joint calculation, considering the affect between each other, realized the joint integration calculation of power system and improved the verisimilitude of results. And, the dynamic characteristics of dynamic element of the master-slave system are considered, and it makes the results more practical. Finally, through 94-node example system analysis, the effectiveness and necessity of the proposed model and method is verified.

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46

Li, Ang. "Simulation and Application of Power System Stabilizer on Power System Transient Stability." Open Electrical & Electronic Engineering Journal 8, no. 1 (December 31, 2014): 258–62. http://dx.doi.org/10.2174/1874129001408010258.

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This paper introduces the working principle and the mathematical model of additional power system excitation control-Power System Stabilizer (PSS). Through established a typical single machine-infinite bus power system simulation model, we simulate the synchronous generator’s transient operational characteristics following a severe disturbance. The simulation results show that the PSS can not only effectively increase the system damping, but also improve operational characteristics of the generator, considerably enhance power system dynamic and transient stability.

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47

TAKEUCHI, Yoshiyuki. "Dynamic Characterization of Interconnected Power System as Nonholonom-Rheonomic System." Transactions of the Institute of Systems, Control and Information Engineers 3, no. 2 (1990): 65–67. http://dx.doi.org/10.5687/iscie.3.65.

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48

Chen, Ying, and Xiang Jie Chen. "Current Detection Simulate for STATCOM Dynamic Compensation System." Key Engineering Materials 439-440 (June 2010): 378–83. http://dx.doi.org/10.4028/www.scientific.net/kem.439-440.378.

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In view of low-pressure area for dynamic reactive power compensation device application present situation, a more advanced static reactive power compensation techniques was proposed that is STATCOM (Static Synchronous Compensator-STATCOM) which based on the modern power electronic technology, and it applied to the low-voltage dynamic reactive power compensation area, developed a new and more advanced low-voltage dynamic reactive power compensation device. In this paper, STATCOM compensation system simulation model was established in MATLAB6.5, futher to study its real-time compensation. Theory analyze and simulation results indicate that compare with static capacitor compensation，dynamic compensation achieved zero phase angle between power source current and voltage on rating frequency，demand for power supply rating power is reduced and power transmission performance is ensured.

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49

Hsu, Chung‐Yu, Li‐Ming Chen, Kan‐Lee Liou, and Yuan‐Yih Hsu. "Effect of power system stabilizers and load frequency controllers on power system dynamic stability." Journal of the Chinese Institute of Engineers 8, no. 2 (April 1985): 135–42. http://dx.doi.org/10.1080/02533839.1985.9676815.

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50

Yamagishi, Yoshio, and Shintaro Komami. "Power System Dynamic Stability Analysis Considering Dynamic Load and Distributed Generation." IEEJ Transactions on Power and Energy 126, no. 10 (2006): 977–84. http://dx.doi.org/10.1541/ieejpes.126.977.

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