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Gotowe bibliografie tematyczne / Power system stability / Artykuły w czasopismach

Artykuły w czasopismach na temat „Power system stability”

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Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 6 września 2023

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1

M.Sai Sesha, M. Sai Sesha, Madhusudanarao r. Madhusudanarao.r i V. S. N. Narasimharaju V.S.N.Narasimharaju. "Stability Improvement of Power System by Simultaneous Ac–Dc Power Transmission". Indian Journal of Applied Research 3, nr 5 (1.10.2011): 280–84. http://dx.doi.org/10.15373/2249555x/may2013/84.

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2

Richards, M. J. "Power system stability". Power Engineering Journal 5, nr 3 (1991): 103. http://dx.doi.org/10.1049/pe:19910024.

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3

Concordia, Charles. "Power System Stability". IEEE Power Engineering Review PER-5, nr 11 (listopad 1985): 8–10. http://dx.doi.org/10.1109/mper.1985.5528337.

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4

Basler, Michael J., i Richard C. Schaefer. "Understanding Power-System Stability". IEEE Transactions on Industry Applications 44, nr 2 (2008): 463–74. http://dx.doi.org/10.1109/tia.2008.916726.

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5

Hansen, D., P. Dalpiaz i S. D. Duggins. "Monitoring power system stability". IEEE Computer Applications in Power 2, nr 2 (kwiecień 1989): 14–18. http://dx.doi.org/10.1109/67.24935.

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6

Shirvani, Mojtaba, Ahmad Memaripour, Meysam Eghtedari i Hasan Fayazi. "Small signal stability analysis of power system following different outages". International Journal of Academic Research 6, nr 2 (30.03.2014): 268–72. http://dx.doi.org/10.7813/2075-4124.2014/6-2/a.38.

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7

Dr.B., Gopinath, Kalyanasundaram M., Pradeepa M. i Karthika V. "Locating Hybrid Power Flow Controller in a 30-Bus System Using Chaotic Evolutionary Algorithm to Improve Power System Stability". Bonfring International Journal of Software Engineering and Soft Computing 8, nr 1 (30.03.2018): 12–16. http://dx.doi.org/10.9756/bijsesc.8382.

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8

Mehar, Pramod Kumar, i Mrs Madhu Upadhyay. "Power System Stability Study on Multi Machine Systems having DFIG Based Wind Generation System". SMART MOVES JOURNAL IJOSCIENCE 6, nr 3 (10.03.2020): 27–30. http://dx.doi.org/10.24113/ijoscience.v6i3.279.

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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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9

Mynuddin, Mohammed. "Stability Study of Power System". International Journal of Energy and Power Engineering 4, nr 2 (2015): 43. http://dx.doi.org/10.11648/j.ijepe.20150402.15.

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10

Yifan Tang i Longya Xu. "Slip power recovery system stability". IEEE Industry Applications Magazine 1, nr 3 (1995): 14–20. http://dx.doi.org/10.1109/2943.384661.

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11

Nelles, Dieter. "Power system dynamics and stability". Automatica 38, nr 2 (luty 2002): 372–73. http://dx.doi.org/10.1016/s0005-1098(01)00213-8.

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12

Machowski, J. "Power system dynamics and stability". Fuel and Energy Abstracts 37, nr 3 (maj 1996): 195. http://dx.doi.org/10.1016/0140-6701(96)88716-9.

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13

Shivakumar, R., R. Lakshmipathi i Y. Suresh. "Implementation of Bio Inspired Genetic Optimizer in enhancing Power System Stability". International Journal of Engineering and Technology 2, nr 3 (2010): 263–68. http://dx.doi.org/10.7763/ijet.2010.v2.131.

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14

Mishra, Rakesh Kumar. "Space based Solar Power: Feasibility Microwave based wireless power system". Journal of Marine Science and Research 2, nr 1 (27.02.2023): 01–05. http://dx.doi.org/10.58489/2836-5933/005.

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Electricity is Part of Life. Electricity is extremely essential to all need it is flexible form of energy, and has been adapt to huge, and growing number of uses. The concentration on the use of fossil fuel for energy supply is the main threat for stability of the global Climate system. To converse our Globe, the Scientific Community gave evidence that mankind has decreases the green House gas emission.

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15

Pavithren, Pavithren, Raman Raghu Raman, Pratap Nair i K. Nithiyananthan. "Voltage Stability Analysis and Stability Improvement of Power System". International Journal of Electrical and Computer Engineering (IJECE) 5, nr 2 (1.04.2015): 189. http://dx.doi.org/10.11591/ijece.v5i2.pp189-197.

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<p>The main objective of this research work is to analysis the voltage stability of the power system network and its improvement in the network.voltage stability of a power system. A system enters a state of voltage instability when a disturbance, increase in load demand, or change in system condition causes a progressive and an uncontrollable drop in voltage or voltage collapse. The continuing increase in demand for electric power has resulted in an increasingly complex, interconnected system, forced to operate closer to the limits of the stability. This has necessitated the implementation of techniques for analyzing and detecting voltage collapse in bus bar or lines prior to its occurrence. Simple Newton Raphson algorithm based voltage stability analysis has been carried out. Matlab based simulations for all the factors that causes voltage instability has been implemented and analyzed for an IEEE 30 bus system. The proposed model is able to identify the behavior of the power systems, network under various voltage stability conditions and its possibility of recovery/stability improvement of the power system network has been discussed.</p>

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16

Kobibi, Youcef Islam Djilani, Mohamed Abdeldjalil Djehaf, Mohamed Khatir i Mohamed Ouadafraksou. "Continuation Power Flow Analysis of Power System Voltage Stability with Unified Power Flow Controller". Journal of Intelligent Systems and Control 1, nr 1 (30.10.2022): 60–67. http://dx.doi.org/10.56578/jisc010106.

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The rising power demand has forced power systems all over the world to operate very close to their stability limits. When power systems are overloaded, faulty, or in lack of reactive power, voltage collapses would ensue. The capacity of a power system to keep the voltage of every bus constant under disturbances is called voltage stability. This dynamic phenomenon hinges on the load features. It is commonly known that flexible AC transmission systems (FACTS) can improve voltage stability. This paper puts forward a load flow model with the unified power flow controller (UPFC), and relies on the model to investigate the voltage stability of a power system through continuation power flow (CPF) method. The validity of the model was verified through a simulation, using the power system analysis toolbox (PSAT) in MATLAB/Simulink environment.

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17

Cho, Yoon-Sung, Gilsoo Jang, Byongjun Lee i Sae-Hyuk Kwon. "Power System Stability Prediction Using Line Power Flow". IFAC Proceedings Volumes 36, nr 20 (wrzesień 2003): 997–1002. http://dx.doi.org/10.1016/s1474-6670(17)34604-9.

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18

Leon, Andres E., Guillermo E. Alonso, Gustavo Revel i Diego M. Alonso. "Wind power converters improving the power system stability". IET Generation, Transmission & Distribution 10, nr 7 (5.05.2016): 1622–33. http://dx.doi.org/10.1049/iet-gtd.2015.0889.

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19

Patel, Lalit K., Kaushik M. Sangada, Sunil S. Changlani i Ankit M. Patel. "Coordination Of Pss And Statcom To Enhance The Power System Transient Stability". Indian Journal of Applied Research 1, nr 9 (1.10.2011): 62–64. http://dx.doi.org/10.15373/2249555x/jun2012/24.

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20

Jia Xu, Jia Xu, Jianqiang Zhu Jianqiang Zhu i Fang Liu Fang Liu. "Beam stability analysis of high power laser system based on relay imaging". Chinese Optics Letters 10, nr 9 (2012): 091401–91404. http://dx.doi.org/10.3788/col201210.091401.

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21

Sreedevi, M., i P. Jeno Paul. "Comparison of Two Power System Stabilizers for the Power System Stability". International Journal of Signal System Control and Engineering Application 3, nr 4 (1.04.2010): 70–76. http://dx.doi.org/10.3923/ijssceapp.2010.70.76.

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22

Barrueto Guzmán, Aldo, Héctor Chávez Oróstica i Karina A. Barbosa. "Stability Analysis: Two-Area Power System with Wind Power Integration". Processes 11, nr 8 (18.08.2023): 2488. http://dx.doi.org/10.3390/pr11082488.

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This paper focuses on a comprehensive stability study of a two-area power system with wind power integration and synthetic inertia control in each area, considering the effects of varying the interconnection link. Normally, synthetic inertia proposals are analyzed in one-area systems, in which stability is tested without considering transmission system phenomena, such as coherency. As modern power systems are progressively becoming interconnected, the possibility of forming two or more non-coherent areas is likely, which poses a challenge to synthetic inertia control techniques that use system frequency as a main feedback signal. In this context, this work addresses a crucial gap in the existing literature and provides a valuable starting point for studying more complex interconnected power systems with wind power integration. Simulations were performed in Matlab-Simulink considering a data-driven frequency dynamics model of the Chilean Electric System, and a wind power model with synthetic inertia control H2 norm minimization in each area. The results showed that it is possible to find local optimal feedback gains, preserving the stability of the global system under significant variations in the interconnection link. RoCoF and Nadir indicators are provided, highlighting the benefits of synthetic inertia control, particularly in low-inertia situations.

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23

Singh, Saurabh Kumar. "Power System Stability Enhancement using UPFC". International Journal for Research in Applied Science and Engineering Technology 6, nr 4 (30.04.2018): 188–94. http://dx.doi.org/10.22214/ijraset.2018.4036.

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24

Mahmoud, Tarek. "POWER SYSTEM STABILITY IMPROVEMENT USING (SSSC)". Journal of Al-Azhar University Engineering Sector 14, nr 53 (1.10.2019): 1474–80. http://dx.doi.org/10.21608/auej.2019.64260.

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25

Brittain, J. "Edith Clarke and power system stability". IEEE Industry Applications Magazine 9, nr 1 (styczeń 2003): 9–10. http://dx.doi.org/10.1109/mia.2003.1176452.

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26

Wilson, D. "Banishing blackouts [power system oscillations stability]". Power Engineer 20, nr 2 (2006): 38. http://dx.doi.org/10.1049/pe:20060208.

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27

Kimbark, E. W. "Power System Stability [Books and Reports]". IEEE Power Engineering Review 15, nr 3 (marzec 1995): 40. http://dx.doi.org/10.1109/mper.1995.365076.

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28

Jovanovic, S. M. "Sequential transient stability assessment (power system)". IEEE Transactions on Circuits and Systems 36, nr 1 (1989): 100–103. http://dx.doi.org/10.1109/31.16569.

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29

Pit-Leong Wong, F. C. Lee i Xunwei Zhou. "Stability study of PC power system". IEEE Transactions on Industry Applications 37, nr 1 (2001): 73–80. http://dx.doi.org/10.1109/28.903129.

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Alvarado, F. "The stability of power system markets". IEEE Transactions on Power Systems 14, nr 2 (maj 1999): 505–11. http://dx.doi.org/10.1109/59.761873.

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31

Milanović, Jovica V. "Probabilistic stability analysis: the way forward for stability analysis of sustainable power systems". Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 375, nr 2100 (10.07.2017): 20160296. http://dx.doi.org/10.1098/rsta.2016.0296.

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Future power systems will be significantly different compared with their present states. They will be characterized by an unprecedented mix of a wide range of electricity generation and transmission technologies, as well as responsive and highly flexible demand and storage devices with significant temporal and spatial uncertainty. The importance of probabilistic approaches towards power system stability analysis, as a subsection of power system studies routinely carried out by power system operators, has been highlighted in previous research. However, it may not be feasible (or even possible) to accurately model all of the uncertainties that exist within a power system. This paper describes for the first time an integral approach to probabilistic stability analysis of power systems, including small and large angular stability and frequency stability. It provides guidance for handling uncertainties in power system stability studies and some illustrative examples of the most recent results of probabilistic stability analysis of uncertain power systems. This article is part of the themed issue ‘Energy management: flexibility, risk and optimization’.

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32

M, Sinan, Sivakumar W M i Anguraja R. "Power System Voltage Stability analysis with Renewable power Integration". International Journal of Innovative Technology and Exploring Engineering 10, nr 6 (30.04.2021): 114–17. http://dx.doi.org/10.35940/ijitee.f8828.0410621.

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The purpose of this research is to find the loading limit of a power system before hitting voltage instability and to assess the margin to voltage instability of a system consisting of a wind farm. An index called Bus Apparent Power Difference Criterion (BSDC) is used to find maximum loadable point. The measure depends on the way that in the region of the voltage collapse no extra apparent power can be delivered to the affected bus. The analysis is performed combination of wind power injection at different wind speeds and line outages in the network. In the feasibility and siting studies of wind farms the steady state analysis with network contingencies give the utility or the developer a sense of network condition upon the injection of power in the network. However, the extent of voltage stability impacted due to load growth in the system is not assessed. The research paper makes way to assess the impact on voltage stability margin with obtaining the maximum loadable point of the system and assessing the best suited bus to integrate a wind farm into the system.

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33

Shi, Huabo, i Xiaoyan Zhou. "Stability Analysis on Power System with Large Power Source". Energy and Power Engineering 05, nr 04 (2013): 517–21. http://dx.doi.org/10.4236/epe.2013.54b099.

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34

Huang, Zhenyu, Lai On Mak, Yixin Ni, Shousun Chen i Baolin Zhang. "UPFC Power Frequency Model for Power System Stability Analysis". IFAC Proceedings Volumes 32, nr 2 (lipiec 1999): 7358–63. http://dx.doi.org/10.1016/s1474-6670(17)57255-9.

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35

Ding, Li Jie, i Hang Fan. "BOCS Based Power System Stability Margin Estimation". Advanced Materials Research 805-806 (wrzesień 2013): 693–99. http://dx.doi.org/10.4028/www.scientific.net/amr.805-806.693.

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This paper focuses on the estimation of the stability index of a power system after a severe disturbance. The description of the stability margin has always been a challenging issue but by introducing a ball-on-concave-surface system, the assessment of the power system stability is equivalent to the analysis to the motion state of the ball on concave. According to the continuous measurement of PMU, the parameter of the concave can be determined which is useful to judge the stability margin of the power system. Tests have been conducted on the systems with two generators and results show it can be accurate and reliable.

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36

Kostenko, Ganna, i Artur Zaporozhets. "Enhancing of the power system resilience through the application of micro power systems (microgrid) with renewable distributed generation". System Research in Energy 2023, nr 3 (25.08.2023): 25–38. http://dx.doi.org/10.15407/srenergy2023.03.025.

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The power sector plays a critical role in the functioning of the economy and the security of a country, being closely interconnected with other vital infrastructures, such as gas supply, water supply, transportation, and telecommunications. Ensuring a stable power supply is crucial for the uninterrupted operation of these systems. One way to enhance the resilience of the power system is by integrating local networks with distributed renewable generation into the overall energy infrastructure. The flexibility, stability, controllability, and self-healing capabilities of microgrids make them an effective solution for improving the resilience of the power system. The power grid is susceptible to disturbances and disruptions that can cause large-scale power outages for consumers. Statistical data indicates that approximately 90% of outages occur due to issues in the distribution system, thus research focuses on local microgrids with distributed renewable generation. This study analyzed the role of microgrids with renewable generation in enhancing the resilience of power systems. Additionally, functions of microgrids that contribute to enhancing power system resilience, such as service restoration, network formation strategies, control and stability, as well as preventive measures, were summarized. It was found that local microgrids have significant potential to enhance power system resilience through the implementation of various strategies, from emergency response planning to providing reliable energy supply for quick responses to military, environmental, and human-induced crises. The concept of local distributed energy generation, storage, and control can reduce reliance on long-distance power transmission lines, reduce network vulnerabilities, and simultaneously improve its resilience and reduce recovery time. It has been determined that the most necessary and promising approaches to enhance the resilience of the power system include developing appropriate regulatory frameworks, implementing automatic frequency and power control systems, ensuring resource adequacy (including the reservation of technical components), promoting distributed generation, integrating energy storage systems into the energy grid, and strengthening cyber security. Keywords: resilience, local power systems, MicroGrid, distributed generation, renewable energy sources.

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37

Li, Ang. "Simulation and Application of Power System Stabilizer on Power System Transient Stability". Open Electrical & Electronic Engineering Journal 8, nr 1 (31.12.2014): 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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38

Zhao, Ping, Wei Yao, Shaorong Wang, Jinyu Wen i Shijie Cheng. "Decentralized nonlinear synergetic power system stabilizers design for power system stability enhancement". International Transactions on Electrical Energy Systems 24, nr 9 (18.09.2013): 1356–68. http://dx.doi.org/10.1002/etep.1788.

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39

Li, Xiao-Ming, Jun-Feng Fu, Xiu-Yu Zhang, Hong Cao, Zhong-Wei Lin i Yu-Guang Niu. "A neural power system stabilizer of DFIGs for power system stability support". International Transactions on Electrical Energy Systems 28, nr 6 (8.02.2018): e2547. http://dx.doi.org/10.1002/etep.2547.

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40

Alexandridis, Antonio T. "Modern Power System Dynamics, Stability and Control". Energies 13, nr 15 (24.07.2020): 3814. http://dx.doi.org/10.3390/en13153814.

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This Special Issue of Energies, “Modern Power System Dynamics, Stability and Control”, addresses the core problem of deploying novel aspects in the analysis of modern power systems as these are composed after the high penetration of distributed generation (DG) with different renewable energy sources (RES). The focus is given either on the new whole power and control system configuration or on individual cases of DG sources, power converters and other general or specific plants and devices. The problem can be tackled with different methodologies and may have several, more or less valuable and complicated solutions. The twenty-three accepted papers certainly offer a good contribution in a wide range of applications; they are extended from basic system theory perspectives, fundamental nonlinear analysis tools and novel modeling deployments to some interesting particular system and control issues.

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41

Meegahapola, Lasantha, Alfeu Sguarezi, Jack Stanley Bryant, Mingchen Gu, Eliomar R. Conde D. i Rafael B. A. Cunha. "Power System Stability with Power-Electronic Converter Interfaced Renewable Power Generation: Present Issues and Future Trends". Energies 13, nr 13 (3.07.2020): 3441. http://dx.doi.org/10.3390/en13133441.

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The energy sector is currently undergoing a rapid transformation with the integration of power electronic converter (PEC)-interfaced renewable energy sources (RES), such as wind and solar photovoltaic (PV) systems, at both the transmission and distribution networks. Power system stability has been significantly influenced by this power grid transformation. This paper comprehensively reviews major power system stability issues affected due to large-scale integration of PEC-interfaced RES in power grids, with some example case studies relevant for each stability category. According to the review, stability issues are mainly originating from reduction in synchronous inertia, reduction in reactive power reserve, low short-circuit strength of the power network, and fault ride-through (FRT) strategy/capability of the PEC-interfaced RES. Decrease in synchronous inertia could affect both the rotor angle stability and the frequency stability, while decrease in short-circuit strength and reactive power reserve could cause voltage stability and rotor angle stability issues in power networks. Sub-synchronous control interactions are also receiving a lot of attention by the power industry due to increasing oscillatory stability incidents reported in power networks with PEC-interfaced RES. FRT capabilities/strategies of PEC-interfaced RES are also playing a pivotal role in power grid stability due to its influence on active and reactive power, hence more emphasis should be placed on FRT schemes of PEC-interfaced RES, since future power grids are expected to operate with 100% PEC-interfaced generation sources. Stability improvement strategies could be implemented to address multiple stability issues in PEC-interfaced power networks; however, rigorous stability studies are required to identify the optimal conditions to implement these improvement strategies. Furthermore, ongoing structural changes in power grids to accommodate remotely sited PEC-interfaced RES are also influencing the stability of power grids. Therefore, all these factors must be carefully considered by system operators when planning and operating power grids in a secure and stable manner with high penetration levels of PEC-interfaced RES.

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42

Che, Yanbo, Zihan Lv, Jianmei Xu, Jingjing Jia i Ming Li. "Direct Method-Based Transient Stability Analysis for Power Electronics-Dominated Power Systems". Mathematical Problems in Engineering 2020 (4.01.2020): 1–9. http://dx.doi.org/10.1155/2020/4295094.

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With the extensive application of power electronics interfaced nonsynchronous energy sources (NESs) in modern power systems, the system stability especially the transient stability is prominently deteriorated, and it is crucial to find a comprehensive and reasonably simple solution. This paper proposes a direct method-based transient stability analysis (DMTSA) method which concludes the key steps as follows: (1) the system modeling of Lyapunov functions using mixed potential function theory and (2) the stability evaluation of critical energy estimation. A voltage source converter- (VSC-) based HVDC transmission system is simulated in a weak power grid to validate the proposed DMTSA method under various disturbances. The simulation results verify that the proposed method can effectively estimate the transient stability with significant simplicity and generality, which is practically useful to secure the operation and control for power electronics-dominated power systems.

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43

Sundaravazhuthi*, V., Dr A. Alli Rani i M. Manoj Kumar. "Raise Voltage Stability Limit of a Power System using Reactive Power Compensation Technique". International Journal of Innovative Technology and Exploring Engineering 8, nr 12 (30.10.2019): 2931–34. http://dx.doi.org/10.35940/ijitee.k1752.1081219.

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In recent years, voltage stability problems have been increasing since power systems operate close to stability limits. The voltage stability problem of a power system is associated with a rapid voltage drop due to heavy system load and it occurs because of inadequate reactive power support at some critical bus. One of the serious consequences of the voltage stability is a system blackout, and this has received more attention in recent years. Accurate determination of stability limit and amount of reactive power injection to stabilize is important.This paper proposes to determine voltage stability margin of a critical bus and also provide amount of reactive power injection to the bus particularly during overload, a simple two bus equivalent model of the power system is used to determine the maximum apparent power for different power factors. Any required apparent power can directly obtained by correcting the reactive power at critical bus. Experimental results support our theoretical findings.

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44

Panosyan, Ara. "Optimization based power system stabilizer tuning". at - Automatisierungstechnik 69, nr 5 (30.04.2021): 376–88. http://dx.doi.org/10.1515/auto-2021-0012.

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Abstract The most cost-effective method to improve the damping of low frequency electromechanical oscillations in interconnected power systems is the use of Power System Stabilizers (PSS), which act as supplementary controllers in the generator excitation system. In general, the performance of a power system stabilizer depends on the proper tuning of its parameters, to ensure a positive contribution to the small signal stability of the power system, without negatively impacting its transient stability. This paper will discuss the different roles of the excitation system automatic voltage regulator and the power system stabilizer in improving the transient stability and the oscillatory stability of the power system. The focus of the paper will be on the tuning methodology for power system stabilizers, which can ensure a robust performance of the PSS over a wide range of frequencies and operating conditions. In addition, mathematical optimization techniques will be introduced into the tuning process to improve the efficiency and accuracy of the tuning process.

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gowtham, S., M. Hemanth i R. Hari Haran. "Power System Stability Analysis & Control By Intelligence System". Indian Journal of Public Health Research & Development 8, nr 4 (2017): 1106. http://dx.doi.org/10.5958/0976-5506.2017.00477.6.

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Thukaram, Bansilal D., i K. Parthasarathy. "An expert system for power system voltage stability improvement". International Journal of Electrical Power & Energy Systems 19, nr 6 (sierpień 1997): 385–92. http://dx.doi.org/10.1016/s0142-0615(97)00007-0.

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Wang, Huaiyuan, i Peican He. "Transient stability assessment and control system for power system". IEEJ Transactions on Electrical and Electronic Engineering 14, nr 8 (6.05.2019): 1189–96. http://dx.doi.org/10.1002/tee.22917.

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Deltuva, Ramūnas, Robertas Lukočius i Konstantinas Otas. "Dynamic Stability Analysis of Isolated Power System". Applied Sciences 12, nr 14 (18.07.2022): 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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Razzhivin, I. A. "ASSESSMENT OF THE WIND FARM IMPACT ON POWER SYSTEM STABILITY WHILE REDUCING OF TOTAL INERTIA". Eurasian Physical Technical Journal 18, nr 4 (38) (21.12.2021): 45–51. http://dx.doi.org/10.31489/2021no4/45-51.

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With the development of wind power in the world, the issues of joint operation of wind power plants in power systems become relevant. Modern variable speed wind turbines with are connected to the network through power voltage converters, which, with their significant integration into the power systems, negatively affects the transient stability of such systems, the operation of emergency control devices, etc. The problem is caused by the effect of "decoupling" of the wind turbine generators from the power systems, since the connection of the mechanical moment of the wind turbine with the power system is lost, its frequency characteristics also change, the overall inertia of the system decreases, and as a consequence, these phenomena can lead to rapid fluctuations in frequency and voltage in normal modes, and also an avalanche of frequency and voltage in case of accidents. In addition, a decrease in the total inertia can contribute to the failure of out-of-step protection systems for eliminating the out-of-step mode, due to an increase in the slip frequency. In the article, experimental studies of the implementation of wind power plants in power system to assess the impact of their work on the rate of the transients.

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Nithiyananthan, K., Simson Samson Raja, R. Sundar i A. Amudha. "Virtual Stability Estimator Model for Three Phase Power System Network". Indonesian Journal of Electrical Engineering and Computer Science 4, nr 3 (1.12.2016): 520. http://dx.doi.org/10.11591/ijeecs.v4.i3.pp520-525.

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<p><em>The main objective of this research work is to develop a simple power systems steady state stability estimator in LabView for three phase power system network. LabVIEW based power systems stability estimator has been chosen as the main platform because it is a user friendly and easy to apply in power systems. This research work is intended to simultaneously acclimate the power system engineers with the utilization of LabVIEW with electrical power systems. This proposed work will discuss about the configuration and the improvement of the intelligent instructional VI (virtual instrument) modules in power systems for power systems stability solutions. In the proposed model power systems stability has been carried out and model has been developed such that it can accommodate the latest versions of power systems stability algorithms.</em></p>

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