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Journal articles on the topic 'Transient stability control of a power system'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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1

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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2

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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3

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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4

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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5

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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6

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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7

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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8

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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9

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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10

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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11

Latha, S., and C. Kala Rani. "Transient Stability Improvement with Unified Power Flow Controller Using Fuzzy Logic and ANFIS Approach." Advanced Materials Research 768 (September 2013): 378–87. http://dx.doi.org/10.4028/www.scientific.net/amr.768.378.

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Transient stability is an important aspect in planning and operation of an electric power system. The application of Fuzzy logic and Adaptive Neuro Fuzzy Inference System (ANFIS) approach to power system problems has received increased attention in recent years. This paper investigates the fuzzy logic based Unified Power Flow Control (UPFC) methods namely in-phase voltage control and quadrature voltage control in improving transient stability of power system using energy function method. The potential of the two control methods in transient stability enhancement is identified in Single Machine Infinite Bus System (SMIB) system. UPFC is connected in SMIB system in middle of the transmission line. Results indicate that significant reductions in the transient swings are obtained with UPFC. The result shows that the transient stability margin is substantially improved with in-phase voltage control higher than the quadrature voltage contro1.

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12

Wang, Y., G. H. Zhang, and D. J. Hill. "Robust power system transient stability enhancement: A global control approach." IFAC Proceedings Volumes 37, no. 13 (September 2004): 1045–50. http://dx.doi.org/10.1016/s1474-6670(17)31364-2.

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13

Liu, Jun, Can Su, Xu Wang, Wanliang Fang, Shuanbao Niu, and Lin Cheng. "Abnormality in power system transient stability control of BESS/STATCOM." Journal of Engineering 2017, no. 13 (January 1, 2017): 1040–44. http://dx.doi.org/10.1049/joe.2017.0487.

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14

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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15

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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16

Rubaai, Ahmed, and F. Eugenio Villaseca. "Transient Stability Hierarchical Control in Multimachine Power Systems." IEEE Power Engineering Review 9, no. 11 (November 1989): 39. http://dx.doi.org/10.1109/mper.1989.4310378.

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17

Rubaai, A., and F. E. Villaseca. "Transient stability hierarchical control in multimachine power systems." IEEE Transactions on Power Systems 4, no. 4 (1989): 1438–44. http://dx.doi.org/10.1109/59.41695.

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18

Xiang, Ji, David J. Hill, and Jin Ma. "Distributed Power Control for Transient Stability of Multimachine Power Systems." IEEE Journal on Emerging and Selected Topics in Circuits and Systems 7, no. 3 (September 2017): 383–92. http://dx.doi.org/10.1109/jetcas.2017.2669340.

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19

Shuto, Takanori, Masaki Nagata, Kenji Yoshimura, Takao Sugiuchi, Mitsuhiro Takeshita, and Kenji Yonei. "A Study on Power System Control Considering Both Transient Stability and Voltage Stability." IEEJ Transactions on Power and Energy 133, no. 10 (2013): 740–45. http://dx.doi.org/10.1541/ieejpes.133.740.

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20

Song, Sungyoon, Sungchul Hwang, Baekkyeong Ko, Seungtae Cha, and Gilsoo Jang. "Novel Transient Power Control Schemes for BTB VSCs to Improve Angle Stability." Applied Sciences 8, no. 8 (August 11, 2018): 1350. http://dx.doi.org/10.3390/app8081350.

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This paper proposes two novel power control strategies to improve the angle stability of generators using a Back-to-Back (BTB) system-based voltage source converter (VSC). The proposed power control strategies have two communication systems: a bus angle monitoring system and a special protection system (SPS), respectively. The first power control strategy can emulate the behaviour of the ac transmission to improve the angle stability while supporting the ac voltage at the primary level of the control structure. The second power control scheme uses an SPS signal to contribute stability to the power system under severe contingencies involving the other generators. The results for the proposed control scheme were validated using the PSS/E software package with a sub-module written in the Python language, and the simple assistant power control with two communication systems is shown to improve the angle stability. In conclusion, BTB VSCs can contribute their power control strategies to ac grid in addition to offering several existing advantages, which makes them applicable for use in the commensurate protection of large ac grid.

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21

Xu, Chao, Jin Ling Lu, and Jin Long Zhou. "A Control Strategy for Transient Stability Improvement of Doubly-Fed Wind Power Generation System." Advanced Materials Research 953-954 (June 2014): 337–41. http://dx.doi.org/10.4028/www.scientific.net/amr.953-954.337.

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A novel inverter control strategy to enhance the transient stability of grid-connected wind farm based on doubly-fed induction generator (DFIG) is presented. Adding transient angle control strategy in the rotor side converter active control loop, this can dissipate the system unbalancing energy and restrain the system oscillations by the variation of wind turbine speed. Adding transient voltage control strategy in reactive control loop, this can provide fast reactive power compensation and support the restoration and reconstruction of the grid voltage when fault occurred. The control strategy which can improve the transient Angle stability and transient voltage stability at the same time is put forward. Finally, a testing system including a DFIG-based wind farm is realized using DigSILENT/Power Factory, the strategy validation and the contribution to power system stability enhancement are verified by simulation.

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22

Siddiqui, Shahbaz A., Kusum Verma, K. R. Niazi, and Manoj Fozdar. "Preventive and Emergency Control of Power System for Transient Stability Enhancement." Journal of Electrical Engineering and Technology 10, no. 1 (January 1, 2015): 83–91. http://dx.doi.org/10.5370/jeet.2015.10.1.083.

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23

Li, Tianya, Gerard Ledwich, Yateendra Mishra, Joe H. Chow, and Arash Vahidnia. "Wave Aspect of Power System Transient Stability—Part II: Control Implications." IEEE Transactions on Power Systems 32, no. 4 (July 2017): 2501–8. http://dx.doi.org/10.1109/tpwrs.2016.2621001.

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24

Wang, Ying, Youbin Zhou, Dahu Li, Dejun Shao, Kan Cao, Kunpeng Zhou, and Defu Cai. "The Influence of VSC–HVDC Reactive Power Control Mode on AC Power System Stability." Energies 13, no. 7 (April 3, 2020): 1677. http://dx.doi.org/10.3390/en13071677.

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Voltage source converter-based high-voltage direct current (VSC-HVDC) has the advantage of fast and independent controllability on active and reactive power. This paper focuses on effects of commonly proposed reactive power control modes, constant reactive power control and AC voltage margin control. Based on the mathematical model of single machine infinity equivalent system with embedded VSC-HVDC, the influence of VSC-HVDC with different reactive power control strategies on transient stability and dynamic stability of the AC system is studied. Then case studies were conducted with a realistic model of grid. The dynamic responses of AC/DC systems for different VSC-HVDC reactive power control modes were compared in detail. It is shown that compared to constant reactive power control, AC voltage margin control can provide voltage support to enhance the transient angle stability of an AC system. However, the fluctuant reactive power injected into a weak AC system may adversely affect power system oscillation damping for VSC-HVDC with AC voltage margin control, if the parameters of the controller have not been optimized to suppress the low-frequency oscillation. The results of this paper can provide certain reference for the decision of an appropriate VSC-HVDC reactive power control mode in practice.

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25

Stogov, A. Yu, and A. N. Belyaev. "IMPROVEMENT OF TRANSIENT STABILITY OF AUTONOMOUS POWER SYSTEM ON BASIS OF WIDE AREA CONTROL SYSTEM." Proceedings of the higher educational institutions. ENERGY SECTOR PROBLEMS 21, no. 1-2 (April 11, 2019): 55–66. http://dx.doi.org/10.30724/1998-9903-2019-21-1-2-55-66.

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Abstract: The coordinated generation and load control to increase transient stability level of oil- production enterprise autonomous power system with dominant motor load is studied in the paper. Mutual angle between voltage phasors at gas turbine plant bus and equivalent load node as well as slip difference of synchronous machines are used as input signals. It is shown that implementation of additional control allows to increase the level of transient stability by more than 40%. The combined coordination of power system stabilizer of synchronous generators and motors as well as gas turbine frequency control parameters is applied. The positive impact of power system stabilizer settings on post-accident conditions is proved by analysis of small signal stability.

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26

Yu, Lan Lan, Bo Xue Tan, and Tian Xing Meng. "The Transient Stability Preventive Control of Power System Based on RBF Neural Network." Advanced Materials Research 121-122 (June 2010): 887–92. http://dx.doi.org/10.4028/www.scientific.net/amr.121-122.887.

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The transient stability preventive estimation and control is one of the most important tasks of the power system. The traditional time domain simulation method cannot meet the standard of on-line estimation because of its heavy computation burden. In this paper, we realize the on-line estimation of transient stability limits on critical lines of a power system using the favorable approximation ability of RBF network. We choose right samples by off-line count to train the RBF network in order to make the error satisfy demand. Preventive control direction and amount are determined based on first-order sensitivities of transient stability limits to generator outputs. The sensitivities are derived from partial derivatives of RBF network outputs to inputs. In the end, we take a practical power system for an example to demonstrate the efficiency of RBF network in estimation of the transient stability limit on critical lines and ability to provide preventive control strategy.

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27

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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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

Lu, D., and X. Zhang. "Transient stability analysis and control of power systems with considering flux decay by energy function approach." Bulletin of the Polish Academy of Sciences: Technical Sciences 60, no. 1 (March 1, 2012): 3–8. http://dx.doi.org/10.2478/v10175-012-0001-1.

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Transient stability analysis and control of power systems with considering flux decay by energy function approach In this paper, transient stability of power systems with structure preserving models is considered. A Hamiltonian function which can be regarded as a Lyapunov function for the system is proposed. Based on this, the influence of flux decay dynamics, especially during a fault, on transient stability is analyzed. With the increase of load power, the variation of stability boundary in the rotor angle/E'q plane is shown. The Energy-based excitation control, aiming at injecting additional damping into the post-fault system may reduce the critical clearing time (CCT). This can be demonstrated by the comparison of different flux decay dynamics in the fault-on condition, and the reason is illustrated by the relationship between rotor angle/E'q and the stability boundary. An improved control strategy is proposed and applied to increase the CCT. Simulation results verify that improvement is obtained both in transient stability and dynamic performance.

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30

Kawabe, Kenichi, and Toshiya Nanahara. "Reactive Power Control of Photovoltaic Power Generation Systems by a Wide-Area Control System for Improving Transient Stability in Power Systems." IEEJ Transactions on Power and Energy 140, no. 10 (October 1, 2020): 736–46. http://dx.doi.org/10.1541/ieejpes.140.736.

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31

Shrivastava, Manish, Vinay Prakash, Vishal Kaushik, and Vivek Kumar Upadhyay. "Transient Stability Improvement of IEEE 9-Bus System Using Static Var Compensator." International Journal of Research in Engineering, Science and Management 4, no. 4 (April 26, 2021): 98–102. http://dx.doi.org/10.47607/ijresm.2021.663.

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With increase in power demand over the last few decades, there has been a great expansion in power generation & transmission. But due to various disturbances, improper loading and environmental conditions the power systems are working near their stability limits which have become a power-transfer limiting factor. This in turn poses a threat to the stability of the system. Transient stability has been considered as one of the most important stability for a power system. In this paper Static VAR Compensator (SVC) has been discussed for reactive power control and hence improvement of transient stability and voltage profile. This paper incorporates IEEE-9 BUS test system with SVC controller using MATLAB Simulation.

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32

Lu, Jin Ling, Shao Tong Shi, and Yang Lu. "Control Strategy of Improving the Transient Voltage Stability of Grid-Connected Large-Scale Wind Farm." Applied Mechanics and Materials 448-453 (October 2013): 1758–61. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.1758.

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Because mostly used variable speed wind turbines based on doubly fed induction generator (DFIG) do not provide with transient voltage support capability under fault conditions, the security and stability of grid is influenced by wind farms integration in the case of severe short circuit fault contingency occurred on the grid side. The modified power converter controller model with transient voltage support capability and pitch control model used for post-fault stability control are implemented in DIgSILENT/PowerFactory. The models validation and the contribution to transient voltage stability enhancement are verified by power system simulation containing large wind farms. From simulation results, it can be illustrated that modified power converter controller with transient voltage support capability can provide dynamic reactive power to support grid voltage recovery and the modified pitch control model can reduce mechanical power , preventing wind turbines from over-speeding and also providing more reactive power generation stability for the power converter controller in the duration of power system large disturbance. The conclusion is presented that the control strategy can effectively improve the transient voltage stability of the gird.

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33

Chen, Shiming, and Kaiqiang Li. "Distributed Optimal Control of Transient Stability for a Power Information Physical System." Mathematical Problems in Engineering 2020 (May 26, 2020): 1–11. http://dx.doi.org/10.1155/2020/1393216.

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The development of power energy structures and information communication technology has promoted the renewal of smart grid information-physical structures. At the same time, the changes in the smart grid energy structure and the vulnerability of the information network threaten the stability of the power system and uses multiagent control theory to improve the transient stability of the power grid which has strong practicability. In this paper, an optimized distributed control scheme is proposed for application to the smart grid model so that the grid system can flexibly adapt to the external operating conditions and recover to stable operating conditions after being disturbed. In this paper, an intelligent power grid information-physical network simulation system is established. According to the information exchange within the multiagent system, groups of coherent generators in the disturbed power grid in different regions are identified and controlled. Distributed control is applied to maintain the exponential frequency synchronization and phase angle aggregation of the synchronous generators to achieve transient stability. Finally, the effectiveness and rapidity of the proposed distributed optimal control scheme are verified by simulation analysis of the IEEE 39 node model.

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34

Machowski, J., and D. Nelles. "Power System Transient Stability Enhancement by Optimal Simultaneous Control of Active and Reactive Power." IFAC Proceedings Volumes 25, no. 1 (March 1992): 397–402. http://dx.doi.org/10.1016/s1474-6670(17)50486-3.

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35

Satyendra, Vishwakarma. "Transient stability analysis of two area power system using unified power flow controller." Advances in Modelling and Analysis C 73, no. 4 (December 30, 2018): 123–27. http://dx.doi.org/10.18280/ama_c.730401.

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36

LIZALEK, Nikolay Nikolayevich, Vladimir Vladimirovich VASIL’EV, Dmitrii Nikolayevich BORODIN, and Sergey Gavrilovich ARGHANNIKOV. "Gorrection Control Selection for Power System Transient Stability of Electromechanical Wave Process." Elektrichestvo, no. 2 (2017): 4–13. http://dx.doi.org/10.24160/0013-5380-2017-2-4-13.

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37

Wang, Ziqiang, and Jie Wang. "A Practical Distributed Finite-Time Control Scheme for Power System Transient Stability." IEEE Transactions on Power Systems 35, no. 5 (September 2020): 3320–31. http://dx.doi.org/10.1109/tpwrs.2019.2904729.

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38

Machowski, J., and D. Nelles. "Power system transient stability enhancement by optimal control of static VAR compensators." International Journal of Electrical Power & Energy Systems 14, no. 6 (December 1992): 411–21. http://dx.doi.org/10.1016/0142-0615(92)90026-6.

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39

Lin, Yu-Jen. "Comparison of CART- and MLP-based power system transient stability preventive control." International Journal of Electrical Power & Energy Systems 45, no. 1 (February 2013): 129–36. http://dx.doi.org/10.1016/j.ijepes.2012.08.066.

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40

Dou, Chun-Xia, Jinzhao Yang, Xiaogang Li, Ting Gui, and Yefei Bi. "Decentralized coordinated control for large power system based on transient stability assessment." International Journal of Electrical Power & Energy Systems 46 (March 2013): 153–62. http://dx.doi.org/10.1016/j.ijepes.2012.10.035.

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41

Carletti, Daniel, Arthur Eduardo Alves Amorim, Thiago Silva Amorim, Domingos Sávio Lyrio Simonetti, Jussara Farias Fardin, and Lucas Frizera Encarnacao. "Adaptive Armature Resistance Control of Virtual Synchronous Generators to Improve Power System Transient Stability." Energies 13, no. 9 (May 9, 2020): 2365. http://dx.doi.org/10.3390/en13092365.

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The growing number of renewable energy plants connected to the power system through static converters have been pushing the development of new strategies to ensure transient stability of these systems. The virtual synchronous generator (VSG) emerged as a way to contribute to the system stabilization by emulating the behavior of traditional synchronous machines in the power converters operation. This paper proposes a modification in the VSG implementation to improve its contribution to the power system transient stability. The proposal is based on the virtualization of the resistive superconducting fault current limiters’ (SFCL) behavior through an adaptive control that performs the VSG armature resistance change in short-circuit situations. A theoretical analysis of the problem is done based on the equal-area criterion, simulation results are obtained using PSCAD, and experimental results are obtained in a Hardware-In-the-Loop (HIL) test bench to corroborate the proposal. Results show an increase in the system transient stability margin, with an increase in the fault critical clearing time (CCT) for all virtual resistance values added by the adaptive control to the VSG operation during the short-circuit.

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Pandey, Vipin Kumar, and Dr Malaya Saurava Dash. "MODELING OF 14 BUS SYSTEM WITH UPFC FOR TRANSIENT STABILITY ENHANCEMENT." SMART MOVES JOURNAL IJOSCIENCE 5, no. 4 (April 12, 2019): 8. http://dx.doi.org/10.24113/ijoscience.v5i4.219.

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The revolution of Power Electronics Technology has given opportunities for developing the FACTS devices for stable operation of power system. In the last two decades number of Power Electronic based devices are implemented and known as FACTS (Flexible AC transmission System).These devices are effectively used for voltage control, power flow control, harmonic elimination, damping oscillation and improving transient stability and minimization of losses. Static and Transient stability enhancement of IEEE 14 bus system is done with the help of UPFC. Fault is created at a bus and the results show that by properly placing UPFC, settling time of the system can be reduced considerably making the system stable with fewer oscillations.

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Wu, Yan Juan, Lin Chuan Li, and Fang Zhang. "Study on Improvement Transient Stability of the Large-Scale Wind Farms Integration with STATCOM." Applied Mechanics and Materials 385-386 (August 2013): 1082–85. http://dx.doi.org/10.4028/www.scientific.net/amm.385-386.1082.

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In view of a serious threat for the transient stability of the power system being caused by the large-scale wind farms integration, and combining with advantages of STATCOM which can quickly restore the fault voltage and fastly, flexibly and smoothly compensate the reactive power, a method is proposed using STATCOM controller of to improve transient stability of the power system integrated by large-scale wind farms. The control strategy of the STATCOM controller uses adaptive double loop control. The role of the device to improvement transient stability of the power system is studied under the condition of serious fault. by simulation comparison with the condition without STATCOM controller installed at the same place. The simulation results show that the STATCOM controller can clearly improve transient stability of the power system integrated by large-scale wind farms.

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Et. al., G. Srikanth ,. "Multi Machine Power System Stability Enhancement Using Static Sychronous Series Compensator (SSSC)." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 2 (April 10, 2021): 1611–18. http://dx.doi.org/10.17762/turcomat.v12i2.1444.

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These days, the requirement for flexible and quick power stream control in the transmission framework is foreseen to increment later on taking into account utility liberation and power wheeling prerequisite. Diminishing the compelling reactance of lines by series remuneration is an immediate approach to build transmission ability. Nonetheless, power move capacity of long transmission lines is restricted by dependability contemplations. On account of the power electronic exchanging abilities as far as control and fast, more focal points have been done in FACTS gadgets regions and presence of these gadgets in transient security during transient flaws bringing about progress in power framework solidness. In this examination, a static synchronous series compensator (SSSC) is utilized to research the impact of this gadget in controlling active and reactive powers just as damping power framework motions in transient mode. The Proportional-Integral Controller (PI) controller is utilized to tune the circuit and to give the zero sign blunder. Static Synchronous Series Compensator (SSSC) is series reactive power remuneration to a power framework. The yield of a SSSC is series infused voltage, which leads or slacks line current by 90°, in this manner copying a controllable inductive or capacitive reactance. SSSC can be utilized to lessen the line impedance and upgrade the active power move ability of the line. With the boundaries and control, the SSSC is discovered successful to direct load voltage during abrupt difference in the heaps. The SSSC additionally furnishes stable activity with dynamic enlistment engine load and mitigates the insecure and swaying conduct that is coming about during the activity of remunerated Alternator with dynamic engine load.

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Du, Yixing, and Zhijian Hu. "Power System Transient Stability Assessment Based on Snapshot Ensemble LSTM Network." Sustainability 13, no. 12 (June 21, 2021): 6953. http://dx.doi.org/10.3390/su13126953.

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Data-driven methods using synchrophasor measurements have a broad application prospect in Transient Stability Assessment (TSA). Most previous studies only focused on predicting whether the power system is stable or not after disturbance, which lacked a quantitative analysis of the risk of transient stability. Therefore, this paper proposes a two-stage power system TSA method based on snapshot ensemble long short-term memory (LSTM) network. This method can efficiently build an ensemble model through a single training process, and employ the disturbed trajectory measurements as the inputs, which can realize rapid end-to-end TSA. In the first stage, dynamic hierarchical assessment is carried out through the classifier, so as to screen out credible samples step by step. In the second stage, the regressor is used to predict the transient stability margin of the credible stable samples and the undetermined samples, and combined with the built risk function to realize the risk quantification of transient angle stability. Furthermore, by modifying the loss function of the model, it effectively overcomes sample imbalance and overlapping. The simulation results show that the proposed method can not only accurately predict binary information representing transient stability status of samples, but also reasonably reflect the transient safety risk level of power systems, providing reliable reference for the subsequent control.

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Aschenbruck, Tim, Willem Esterhuizen, and Stefan Streif. "Transient stability analysis of power grids with admissible and maximal robust positively invariant sets." at - Automatisierungstechnik 68, no. 12 (November 18, 2020): 1011–21. http://dx.doi.org/10.1515/auto-2020-0073.

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AbstractThe energy transition is causing many stability-related challenges for power systems. Transient stability refers to the ability of a power grid’s bus angles to retain synchronism after the occurrence of a major fault. In this paper a set-based approach is presented to assess the transient stability of power systems. The approach is based on the theory of barriers, to obtain an exact description of the boundaries of admissible sets and maximal robust positively invariant sets, respectively. We decompose a power system into generator and load components, replace couplings with bounded disturbances and obtain the sets for each component separately. From this we deduce transient stability properties for the entire system. We demonstrate the results of our approach through an example of one machine connected to one load and a multi-machine system.

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Tamura, Junji, Atsushi Umemura, Rion Takahashi, Atsushi Sakahara, Fumihito Tosaka, and Ryosuke Nakamoto. "Enhancement of Power System Transient Stability by the Coordinated Control between an Adjustable Speed Pumping Generator and Battery." Applied Sciences 10, no. 24 (December 17, 2020): 9034. http://dx.doi.org/10.3390/app10249034.

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The penetration level of large-scale wind farms into power systems has been increasing significantly, and the frequency stability and transient stability of the power systems during and after a network fault can be negatively affected. This paper proposes a new control method to improve the stability of power systems that are composed of large wind farms, as well as usual synchronous generators. The new method is a coordinated controlling method between an adjustable-speed pumping generator (ASG) and a battery. The coordinated system is designed to improve power system stability during a disconnection in a fixed-rotor-speed wind turbine with a squirrel cage-type induction generator (FSWT-SCIG)-based wind farm due to a network fault, in which a battery first responds quickly to the system frequency deviation due to a grid fault and improves the frequency nadir, and then the ASG starts to supply compensatory power to recover the grid frequency to the rated frequency. The performance of the proposed system was confirmed through simulation studies on a power system model consisting of usual synchronous generators (SGs), an ASG, a battery, and an SCIG-based wind farm. Simulation results demonstrated that the proposed control system can enhance the stability of the power system effectively.

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Hoan, Wayne T., and Mark Chow. "Transient Stability Analysis for Sohio Prudhoe Bay Emergency Power System." IEEE Transactions on Industry Applications IA-22, no. 3 (May 1986): 430–34. http://dx.doi.org/10.1109/tia.1986.4504738.

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Lu, Fang, Yu Li, and Hong Da Liu. "Transient Stability Emergency Control Research Based on Critical Machine Unit." Advanced Materials Research 1008-1009 (August 2014): 748–55. http://dx.doi.org/10.4028/www.scientific.net/amr.1008-1009.748.

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Self-healing ability is the basic requirement of smart grid. When a fault occurs, the control system should analysis transient stability on line and offer control measures quickly. This paper presents a fast and accurate transient stability emergency control measure. Based on the wide-area measures system, the sensitivity of critical-machine-unit stability index to controlled parameter is derived, and as one of transient stability constraints, sensitivity equation is incorporated into the nonlinear optimization algorithm to obtain the required emergency control amount. The method is simple and quick; the smallest cutting amount ensures load power supply, the simulation verifies the method’s superiority.

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Abido, Mohamed Ali, and Muhammad Waqar Ahmed. "Multi-objective optimal power flow considering the system transient stability." IET Generation, Transmission & Distribution 10, no. 16 (December 8, 2016): 4213–21. http://dx.doi.org/10.1049/iet-gtd.2016.1007.

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