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Journal articles on the topic 'Power system transient stability'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 February 2022

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1

Patel, Lalit K., Kaushik M. Sangada, Sunil S. Changlani, and Ankit M. Patel. "Coordination Of Pss And Statcom To Enhance The Power System Transient Stability." Indian Journal of Applied Research 1, no. 9 (October 1, 2011): 62–64. http://dx.doi.org/10.15373/2249555x/jun2012/24.

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2

Jovanovic, S. M. "Sequential transient stability assessment (power system)." IEEE Transactions on Circuits and Systems 36, no. 1 (1989): 100–103. http://dx.doi.org/10.1109/31.16569.

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3

Musaazi, M. K., R. B. I. Johnson, and B. J. Cory. "Multimachine System Transient Stability Improvement Using Transient Power System Stabilizers (TPSS)." IEEE Power Engineering Review PER-6, no. 12 (December 1986): 36–37. http://dx.doi.org/10.1109/mper.1986.5528059.

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4

Musaazi, M. K., R. B. I. Johnson, and B. J. Cory. "Multimachine System Transient Stability Improvement using Transient Power System Stabilizers (TPSS)." IEEE Transactions on Energy Conversion EC-1, no. 4 (December 1986): 34–38. http://dx.doi.org/10.1109/tec.1986.4765771.

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5

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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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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6

Wang, Ke, Da Hai You, Ceng Long, Peng Xu, Ling Ling Pan, and Luo Zheng. "Power System Transient Stability Assessment Based on Critical Cutset Transient Stability Available Capacity." Applied Mechanics and Materials 615 (August 2014): 80–83. http://dx.doi.org/10.4028/www.scientific.net/amm.615.80.

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Aiming at the disadvantages of converting traditional transient stability margin into power system control measures, this paper proposes a new transient stability margin characterization method based on critical cutset transient stability available capacity (TATC). Compared with traditional transient stability margin based on fault clearance time or transient energy function, TATC can directly reflects power system transient stability margin form the view of power which is more conducive for power system planning and operation personnel to grasp system transient stability state, at the same time, is also advantageous for prevention measures and emergency control measures to be developed directly according TATC. Simulation results based on IEEE50 machine 145 bus system show that the proposed TATC can effectively characterize power system transient stability margin.

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7

Sun, Zhen Long, Ai Long Fan, and Da Lu Guan. "Power System Transient Stability Based on SVM." Advanced Materials Research 562-564 (August 2012): 1476–78. http://dx.doi.org/10.4028/www.scientific.net/amr.562-564.1476.

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In order to overcome the lack of which power system transient stability assessment model can not continue to learn and update the model online, in this chapter, a incremental learning method of support vector machine is proposed . The new data is added to the solution by constructing a recursive solution , which provides a new way of learning online for power system transient stability assessment.

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8

Wang, Huaiyuan, and Peican He. "Transient stability assessment and control system for power system." IEEJ Transactions on Electrical and Electronic Engineering 14, no. 8 (May 6, 2019): 1189–96. http://dx.doi.org/10.1002/tee.22917.

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9

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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10

Rajarajan, R., and Dr R. Prakash. "Transient Stability Enhancement for Distribution System Using three Phase Unified Power Quality Conditioner with an Intrinsic Power Prediction Technique." Journal of Advanced Research in Dynamical and Control Systems 11, no. 12-SPECIAL ISSUE (December 31, 2019): 1138–50. http://dx.doi.org/10.5373/jardcs/v11sp12/20193321.

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11

Chakraborty, Arindam, Shravana K. Musunuri, Anurag K. Srivastava, and Anil K. Kondabathini. "Integrating STATCOM and Battery Energy Storage System for Power System Transient Stability: A Review and Application." Advances in Power Electronics 2012 (December 17, 2012): 1–12. http://dx.doi.org/10.1155/2012/676010.

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Integration of STATCOM with energy storage devices plays an imperative role in improving the power system operation and control. Significant research has been done in this area for practical realization of benefits of the integration. This paper, however, pays particular importance to the performance improvement for the transients as is achievable by STATCOM with battery-powered storage systems. Application of STATCOM with storage in regard to intermittent renewable energy sources such as wind power generation is also discussed in the paper. At the beginning of this paper, an overall review of the STATCOM and energy storage systems are elaborated. A brief overview of the advantages of using STATCOM in conjunction to energy storage systems in achieving power system stability is presented. In the second part of the paper, a typical transient stability model of a STATCOM is presented. The dynamics of real and reactive power responses of the integrated system to transients is studied. The study is aimed at showing that the combination of STATCOM and battery energy storage significantly improves the performance of the system. The final results show that the STATCOM reactive power/voltage control helps in transient stability enhancement.

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12

Chechushkov, Dmitrii. "System Transient Stability with Distributed Generation." Advanced Materials Research 1070-1072 (December 2014): 983–86. http://dx.doi.org/10.4028/www.scientific.net/amr.1070-1072.983.

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The paper represents a research of transient stability accessing of power system and distributed generation sources. The methodology of modeling is presented. The analysis of transient stability of DG sources is presented and shows the impact of DG on transient system stability.

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13

Guo, Li Sa. "Transient Stability of Wind Power System with DFIG." Advanced Materials Research 986-987 (July 2014): 635–38. http://dx.doi.org/10.4028/www.scientific.net/amr.986-987.635.

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Analyzed mathematical model of wind power which consist doubly-fed wind turbine (DFIG).Strategies for pitch angle control were developed.Used MATLAB to establish equivalent model contain infinite power system concluding DFIG ,The results showed that wind power with DFIG have good transient stability.

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14

Che, Yanbo, Zihan Lv, Jianmei Xu, Jingjing Jia, and Ming Li. "Direct Method-Based Transient Stability Analysis for Power Electronics-Dominated Power Systems." Mathematical Problems in Engineering 2020 (January 4, 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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15

Bruno, Sergio, Giovanni De Carne, and Massimo La Scala. "Distributed FACTS for Power System Transient Stability Control." Energies 13, no. 11 (June 5, 2020): 2901. http://dx.doi.org/10.3390/en13112901.

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The high penetration of renewable energy sources, combined with a limited possibility to expand the transmission infrastructure, stretches the system stability in the case of faults. For this reason, operators are calling for additional control flexibility in the grid. In this paper, we propose the deployment of switchable reactors and capacitors distributed on the grid as a control resource for securing operations during severe contingencies and avoiding potential blackouts. According to the operating principles, the line reactance varies by switching on or off a certain number of distributed series reactors and capacitors and, therefore, the stabilizing control rule is based on a stepwise time-discrete control action. A control strategy, based on dynamic optimization, is proposed and tested on a realistic-sized transmission system.

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16

Mandadi, P. Nagaraju, and K. Dhanvanthri. "Power System Transient Stability Analysis With SSSC Controller." CVR Journal of Science and Technology 2, no. 1 (June 1, 2012): 56–60. http://dx.doi.org/10.32377/cvrjst0212.

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17

Okakwu, Ignatius K., Emmanuel A. Ogujor, and Abel E. Airoboman. "Enhancement of Power System Transient Stability - A Review." IOSR Journal of Electrical and Electronics Engineering 12, no. 03 (June 2017): 32–36. http://dx.doi.org/10.9790/1676-1203053236.

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18

Jun Qiang Wu, A. Bose, Jin An Huang, A. Valette, and F. Lafrance. "Parallel implementation of power system transient stability analysis." IEEE Transactions on Power Systems 10, no. 3 (1995): 1226–33. http://dx.doi.org/10.1109/59.466533.

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19

Rezazadeh, A., M. Sedighizadeh, and A. Alavian. "Optimal Sizing and Sitting of Distributed Generation for Power System Transient Stability Enhancement Using Genetic Algorithm." International Journal of Engineering and Technology 1, no. 5 (2009): 387–90. http://dx.doi.org/10.7763/ijet.2009.v1.73.

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20

Xia, Shiwei, Qian Zhang, S. T. Hussain, Baodi Hong, and Weiwei Zou. "Impacts of Integration of Wind Farms on Power System Transient Stability." Applied Sciences 8, no. 8 (August 2, 2018): 1289. http://dx.doi.org/10.3390/app8081289.

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To compensate for the ever-growing energy gap, renewable resources have undergone fast expansions worldwide in recent years, but they also result in some challenges for power system operation such as the static security and transient stability issues. In particular, as wind power generation accounts for a large share of these renewable energy and reduces the inertia of a power network, the transient stability of power systems with high-level wind generation is decreased and has attracted wide attention recently. Effectively analyzing and evaluating the impact of wind generation on power transient stability is indispensable to improve power system operation security level. In this paper, a Doubly Fed Induction Generator with a two-lumped mass wind turbine model is presented firstly to analyze impacts of wind power generation on power system transient stability. Although the influence of wind power generation on transient stability has been comprehensively studied, many other key factors such as the locations of wind farms and the wind speed driving the wind turbine are also investigated in detail. Furthermore, how to improve the transient stability by installing capacitors is also demonstrated in the paper. The IEEE 14-bus system is used to conduct these investigations by using the Power System Analysis Tool, and the time domain simulation results show that: (1) By increasing the capacity of wind farms, the system instability increases; (2) The wind farm location and wind speed can affect power system transient stability; (3) Installing capacitors will effectively improve system transient stability.

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21

Al-Tameemi, Zaid H., Hayder H. Enawi, Karrar M. Al-Anbary, and Hussam M. Almukhtar. "Transient Stability Improvement of the Power Systems." Indonesian Journal of Electrical Engineering and Computer Science 12, no. 3 (December 1, 2018): 916. http://dx.doi.org/10.11591/ijeecs.v12.i3.pp916-923.

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<p>During the last few decades, electrical power demand enlarged significantly whereas power production and transmission expansions has been brutally restricted as a result of restricted resources as well as ecological constrains. Consequently, many transmission lines have been profoundly loading so the stability of power system became as Limiting factor for transferring electrical power. So, maintaining a secure and stable operation of the electric power networks is deemed an imporatant and challenge issue.transient stability of a power system has been gained a considerable attention from researchers dute to it importance . Therefore,this paper sheds light on A substantial number of the adopted techniques, including an inclease in inertia constant of generator, shunt capacitor, reduction reactance of the transmission line to acheive this purpose. A 7-Machine CIGRE system has been considered a case study. Matlab package has been employed to implement this study. The simulation results show that the transient stability of the repective system enhanced considerably with these techniques.</p>

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22

He, Xun Yu, Fang Liu, and Zhuan Ma. "Transient Stability of Power System Based on Multi-Agent System." Applied Mechanics and Materials 599-601 (August 2014): 755–59. http://dx.doi.org/10.4028/www.scientific.net/amm.599-601.755.

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With the expending of power system and the complexity of system structure,operating stability, reliability and economy is faced with opportunities and new challenges.this paper, A hierarchical classification control structure is hired to finish coordinated control tasks based on multi-agent system,The simulation results show that decentralized coordinated control scheme is better than a simple decentralized robust control, decentralized coordinated control programs, especially in the case of large interference effect, Thus, the proposed scheme is effective to improve power systems transient stability and to enhance the robustness.

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23

Wang, Huaiyuan, Baohui Zhang, and Zhiguo Hao. "Response Based Emergency Control System for Power System Transient Stability." Energies 8, no. 12 (November 30, 2015): 13508–20. http://dx.doi.org/10.3390/en81212381.

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24

Pan, Feilai, Jun Li, Bendong Tan, Ciling Zeng, Xinfan Jiang, Li Liu, and Jun Yang. "Stacked-GRU Based Power System Transient Stability Assessment Method." Algorithms 11, no. 8 (August 9, 2018): 121. http://dx.doi.org/10.3390/a11080121.

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With the interconnection between large power grids, the issue of security and stability has become increasingly prominent. At present, data-driven power system adaptive transient stability assessment methods have achieved excellent performances by balancing speed and accuracy, but the complicated construction and parameters are difficult to obtain. This paper proposes a stacked-GRU (Gated Recurrent Unit)-based transient stability intelligent assessment method, which builds a stacked-GRU model based on time-dependent parameter sharing and spatial stacking. By using the time series data after power system failure, the offline training is performed to obtain the optimal parameters of stacked-GRU. When the application is online, it is assessed by framework of confidence. Basing on New England power system, the performance of proposed adaptive transient stability assessment method is investigated. Simulation results show that the proposed model realizes reliable and accurate assessment of transient stability and it has the advantages of short assessment time with less complex model structure to leave time for emergency control.

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25

Pi, Liang, Chen Wang, and Wei Zheng. "Transient Stability Analysis of Power System Based on Time Domain Simulation." Applied Mechanics and Materials 263-266 (December 2012): 781–85. http://dx.doi.org/10.4028/www.scientific.net/amm.263-266.781.

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Single-machine infinite-bus system and two-machine system simulation models were built to study the power system transient stability. Based on time domain simulation, the effect of generator inertia time constant (τg), and excitation system ceiling voltage (Ke) on transient stability were analyzed by single-machine infinite-bus system. The changes of transient stability of two-machine system were also compared by means of power system stabilizers (PSS) and static VAR compensator (SVC). In particular, the system transient stability varied greatly in different locations of SVC. Finally, some suggestions concerning the improvement of power system transient stability were put forward.

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26

Miah, Abdul Malek. "Localized Transient Stability (LTS) Method for Real-time Localized Control." International Journal of Applied Power Engineering (IJAPE) 7, no. 1 (April 1, 2018): 73. http://dx.doi.org/10.11591/ijape.v7.i1.pp73-86.

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<p>Very recently, a new methodology was introduced solely for the purpose of real-time localized control of transient stability. The proposed new method is based on the localized transient stability of a power system. This is completely a new idea in transient stability. In this method, the post-fault power system is represented by a two-generator localized power system at the site of each individual generator. If each of these localized power systems reaches its respective stable equilibrium, then the full power system also reaches its stable equilibrium. Therefore, in terms of real-time localized control of transient stability, if each of the localized power systems is driven to its respective stable equilibrium by local control actions with local computations using the locally measured data, then the full power system is driven to its stable equilibrium. Thus the method can be easily implemented for real-time localized control of transient stability. In this paper, the details of the mathematical formulations are presented. Some interesting test results on the well-known New England 39-bus 10-generator system are also presented in this paper to demonstrate the potential of the proposed method for use in real-time localized control of transient stability.</p><p> </p>

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27

田, 笑东. "Influence of DFIG on Transient Power Angle Stability of Power System." Advances in Energy and Power Engineering 07, no. 06 (2019): 118–26. http://dx.doi.org/10.12677/aepe.2019.76014.

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28

Panosyan, Ara. "Optimization based power system stabilizer tuning." at - Automatisierungstechnik 69, no. 5 (April 30, 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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29

Maria, G. A., C. Tang, and J. Kim. "Hybrid transient stability analysis (power systems)." IEEE Transactions on Power Systems 5, no. 2 (May 1990): 384–93. http://dx.doi.org/10.1109/59.54544.

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30

Ma, Zhi Hao, Di Chen Liu, and Bo Wang. "Research of PCA Based Power System Transient Stability Assessment." Advanced Materials Research 791-793 (September 2013): 1858–62. http://dx.doi.org/10.4028/www.scientific.net/amr.791-793.1858.

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With the constant expansion of the power system and the popularity of WAMS system, to analyze the stability of power system based on WAMS data has become a hotspot studied at present. This paper researches the methods to rapidly extract the critical electrical characters of the power system in fault condition. Principal component analysis is used to extract transient characters of power system, and the results are used in the transient stability assessment, proving the effectiveness of this method.

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31

Xue, Tian Liang, Fang Zong Wang, and Jing Ye. "Parallel Algorithm for Transient Stability Online Simulation." Advanced Materials Research 433-440 (January 2012): 4446–51. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.4446.

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Parallel computation is an effective approach to real-time simulation and transient stability online assessment of large-scale power systems. In this paper, the s-stage 2s-order symplectic Runge-Kutta-Nyström method is adopted for transient stability simulation of power system using classic model. Using Butcher transformation, a new parallel algorithm has been derived. The proposed algorithm has the convergence characteristic of a Newton type method and is of fully parallel-in-time. Through numerical simulation where the IEEE 145-bus power system is used, the proposed algorithm has been tested and compared with the conventional parallel-in-time Newton approach using implicit trapezoidal rule.

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32

Wang, Hao Liang, Chun Lai Zhang, Xiang Nan Kong, and Hua Zhang. "Research on Transient Stability Simulation of Ship Power System." Advanced Materials Research 383-390 (November 2011): 2055–59. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.2055.

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Based on the SIMULINK tool of MATLAB, the paper researches the ship power system, the research includes: load suddenly increased or decreased when one single generator is running, generators’ running in parallel, load suddenly increased or decreased when two generators are running in parallel. Through the analysis of the different work condition, the paper researches the transient stability of the ship power system.

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33

Kim, Yoon-Sik, and Chul-Ho Kim. "Analysis on transient stability for drilling rigs power system." Journal of the Korean Society of Marine Engineering 38, no. 9 (November 30, 2014): 1119–24. http://dx.doi.org/10.5916/jkosme.2014.38.9.1119.

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34

Fang, Jiakun, Wei Yao, Jinyu Wen, Shijie Cheng, Yuejin Tang, and Zhuo Cheng. "Probabilistic assessment of power system transient stability incorporating SMES." Physica C: Superconductivity 484 (January 2013): 276–81. http://dx.doi.org/10.1016/j.physc.2012.03.068.

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35

Pavella, Mania. "Power system transient stability assessment – traditional vs modern methods." Control Engineering Practice 6, no. 10 (October 1998): 1233–46. http://dx.doi.org/10.1016/s0967-0661(98)00073-2.

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36

Wang, Y., R. R. Mohler, R. Spee, and W. Mittelstadt. "Variable-structure facts controllers for power system transient stability." IEEE Transactions on Power Systems 7, no. 1 (1992): 307–13. http://dx.doi.org/10.1109/59.141719.

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37

Tamura, Junji, Masahiro Ueno, Satoshi Yoneoka, and Yoshiyuki Ueda. "Transient Stability Simulation of Power System Including Wind Generators." IEEJ Transactions on Power and Energy 120, no. 12 (2000): 1636–45. http://dx.doi.org/10.1541/ieejpes1990.120.12_1636.

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38

Wang, Bin, Kai Sun, and Xin Xu. "Nonlinear Modal Decoupling Based Power System Transient Stability Analysis." IEEE Transactions on Power Systems 34, no. 6 (November 2019): 4889–99. http://dx.doi.org/10.1109/tpwrs.2019.2920406.

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39

Al Araifi, Surour Mohamed, Mohamed Shawky El Moursi, and Seddik M. Djouadi. "Individual Functions Method for Power System Transient Stability Assessment." IEEE Transactions on Power Systems 35, no. 2 (March 2020): 1264–73. http://dx.doi.org/10.1109/tpwrs.2019.2937144.

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40

Cui, Zhen, Jia Shi, Runsheng Wu, Dan Lu, and Mingde Cui. "Power System Transient Stability Based on Data Mining Theory." IOP Conference Series: Earth and Environmental Science 108 (January 2018): 052009. http://dx.doi.org/10.1088/1755-1315/108/5/052009.

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41

Lee, S. Y., N. D. Chiang, K. G. Lee, and B. Y. Ku. "Parallel power system transient stability analysis on hypercube multiprocessors." IEEE Transactions on Power Systems 6, no. 3 (1991): 1337–43. http://dx.doi.org/10.1109/59.119287.

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42

Belhomme, R., H. Zhao, and M. Pavella. "Power system reduction techniques for direct transient stability methods." IEEE Transactions on Power Systems 8, no. 2 (May 1993): 723–29. http://dx.doi.org/10.1109/59.260808.

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43

Karami, A. "Power system transient stability margin estimation using neural networks." International Journal of Electrical Power & Energy Systems 33, no. 4 (May 2011): 983–91. http://dx.doi.org/10.1016/j.ijepes.2011.01.012.

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44

Cui, Wenqi, and Baosen Zhang. "Lyapunov-Regularized Reinforcement Learning for Power System Transient Stability." IEEE Control Systems Letters 6 (2022): 974–79. http://dx.doi.org/10.1109/lcsys.2021.3088068.

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45

Ethmane, I. A., A. K. Mahmoud, M. Maaroufi, and A. Yahfdhou. "Transient stability enhancement of statcom integration in power grid." Indonesian Journal of Electrical Engineering and Computer Science 16, no. 2 (November 1, 2019): 553. http://dx.doi.org/10.11591/ijeecs.v16.i2.pp553-561.

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T<span>o solve load growth of a hybrid existing electrical system, we at first build generation stations (wind, solar or thermical). And secondly in 2025 year, when the system is so meshed, some buses will be very far from production energy, the transits power will be lower than the transmission capacity, and the voltage drop out margin limit of stability. Therefore it is proposed to install Flexible AC Transmission System (FACTS) devices to enhance the transient power stability and quality in the power system. The power flow analysis of Newton Raphson method is performed on a seven (7) bus system with and without static synchronous compensator (STATCOM). The STATCOM is a shunt connected FACTS devices that are useful for reactive power compensation and mitigation of power quality problems in transmission and distribution systems. These investigations indicate the need of power flow analysis and determine best locations of STATCOM on the proposed system. The results of simulation have been programmed in MATLAB and PSS/E Simulator. In the end the expected disturbances and the power quality enhancement of the network in the horizon 2025 were attenuated by integration of STATCOM that is able to supply or absorb reactive power and to maintain the voltage at 1pu.</span>

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46

Sun, Wen, Yin Sheng Su, Jun Feng Zhang, and Xiao Ming Li. "Enhance Power System Transient Voltage Stability by Difference Coefficient of Generator Excitation System Optimization." Advanced Materials Research 1008-1009 (August 2014): 409–16. http://dx.doi.org/10.4028/www.scientific.net/amr.1008-1009.409.

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Lack of dynamic reactive power compensation result in power system transient voltage instability. To improve the transient voltage stability, an optimization strategy for setting the excitation system difference coefficient of the generator is presented in this paper. The concept of the excitation system difference coefficient is introduced. Then the impacts of difference coefficients of generator excitation system on generator stability are analyzed and adjustment range is proposed. The calculation results of Guangdong province system show that the transient voltage stability level is enhanced effectively after optimizing the excitation system difference coefficient.

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47

Zhou, Yuan, Zhi Jie Wang, San Ming Liu, and Xia Sun. "Research of the Wind Power’s Transient Stability." Applied Mechanics and Materials 229-231 (November 2012): 1043–46. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.1043.

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The purpose of this paper is to improve the transient stability of wind power system. This paper presents a new DFIG control strategy, The strategy achieve the decoupling of reactive power and active power. In order to improve the transient stability of wind power, here lead STATCOM into wind power system. Then put forward the STATCOM'S control strategy according it's mathematical model. The simulation result shows that, the proposed scheme can greatly improve the wind power system's transient stability.

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Pandey, Vipin Kumar, Dr Malay S. Das, and Dr Anula Khare. "Improvement of Transient Stability Using Different-Different FACTS Devices." SMART MOVES JOURNAL IJOSCIENCE 5, no. 2 (February 5, 2020): 35–37. http://dx.doi.org/10.24113/ijoscience.v5i2.253.

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Due to increase in population and industrial growth, insufficient energy resources to generate or transmit the power in power system, increase in load causes power demand in the electrical power system. These power demand leads to voltage instability, increase the losses, reduces the power transfer capability and stability of the power system. To overcome this stability problem FACTS devices are optimally located in the power system to examine the stability of the system. To locate the FACTS devices different optimization algorithms are used in order to improve the stability of the electrical power system.

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Liu, Wen Ying, and Cai Liang. "A Criticality Assessment Method for Power Transmission Lines in Power System." Applied Mechanics and Materials 446-447 (November 2013): 817–22. http://dx.doi.org/10.4028/www.scientific.net/amm.446-447.817.

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Analytic Hierarchy Process (AHP) is presented in this paper to measure the relative criticality for transmission lines, considering the changes of power system’s status about transmission lines overload, central buses voltage over-limit and transient stability. At first hierarchy structure is modeled, and then indexes of criteria Layer including transmission line overload index, central buses voltage over-limit index and transient stability index were presented. The simulation results show that, the AHP assessment method can give a full consideration to transmission lines’ function, which of huge significance for identifying critical lines and increasing the security of power system.

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Dang, Khanh Tuan, and Liem Van Nguyen. "Applications of FACTS devices for improving power system transient stability." Science and Technology Development Journal 18, no. 3 (August 30, 2015): 47–54. http://dx.doi.org/10.32508/stdj.v18i3.884.

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As the power demand has been increasing rapidly, today’s modern power system becomes to be more complex and faces many challenges. It is envisaged that transient stability will play the important role in ensuring the steady state operation of power systems in the event of three phases fault or switching of lines. This paper investigates models of Flexible AC Transmission Systems (FACTS) and applications of FACTS devices for improving the rotor angle stability. FACTS devices are applicable in shunt connection Static Var Compensator (SVC), in series connection Thyristor-Controlled Series Capacitor (TCSC), or in the combination of both. Mathematical models of power systems having FACTS devices are set of Differential - Algebraic Equations (DAEs). Trapezoidal rule and Newton - Raphson method are applied to solve DAEs. The simulation results of rotor angles demonstrate the effectiveness and robustness of proposed the SVC and TCSC on transient stability enhancement of power systems.

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