Study on Improving Power System Damping Characteristic in Novel Excitation System

Abstract:

A novel excitation system based on full controlled devices rectifier is proposed in this article, and the excitation system can provide double kinds of damping for power system by controlling the excitation voltage of DC side and exchanging reactive with generator. Through the Mat lab / Simu link simulation platform, a circuit model is established. This paper presents a current feed forward decoupling control method and the active and reactive current can be controlled independently by the method. The simulation results of two-area including four generators system shows the system damping ratio is improved significantly, and has better dynamic performance than conventional excitation system .

• Periodical: Advanced Materials Research (Volumes 383-390)
• Pages: 2447-2452
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.383-390.2447
• Online since: November 2011
• Authors: Pei Hong Yang, Gui Mei Cui, Wen Ying Liu
• Keywords: Damping Ratio, Full Controlled Devices, Low Frequency Oscillation of Power System, Novel Excitation System

References

[1] ZHU Fang, ZHAO Hong-guang, LIU Zeng-huang, et al. The influence of large power grid interconnected on power system dynamic stability [J]. Proceedings of the CSEE, 2007, 27(1) , pp.1-7.

[2] YAN Wei-jia, JIANG Ping. Damping control with FACTS aiming at damping inter-area oscillation[J]. High Voltage Engineering, 2007, 33(1) , pp.189-192.

[3] Zhu Fang, Liu Zenghuang, Chu Liu. Achievement and experience of improving power system stability by PSS excitation control in China[C]∥IEEE PES 2004 General Meeting. Denver, U SA: IEEE, (2004).

DOI: 10.1109/pes.2004.1373180

[4] XU Qing-hong, DAI Xian-zhong. Online learning ANN-inversion excitation controller with NNPSS for multi-machine power system[J]. Electric Power Automation Equipment, 2010, p.25~31.

DOI: 10.1109/ccdc.2008.4597415

[5] Hu Zhaoqing, Mao Chengxiong, L u Jiming, et al. Grey exicitation controller for synchronous generator[J]. The Journal of Grey System, 2004, 16(1), pp.51-58.

[6] ZHANG Yang-fei, YUAN Yue, CHEN Xiao-hu, et al . Mechanism of active-power PSS low-frequency oscillation suppression and characteristic of anti-regulation[J]. Power System Protection and Control, 2010, 38(, p.77~80.

DOI: 10.1109/icmtma.2011.421

[7] ZHANG Xiao-bin, ZHONG Yan-ru. Optimal dynamic hierarchical control of the STATCOM DC side voltage[J]. Proceedings of the CSEE, 2005, 25(11) . p.60~67.

[8] Mit hulanant han N, Canizares C A, Reeve J, et al. Comparison of PSS, SVC, and STATCOM controllers for damping power system oscillations[J]. IEEE Trans on Power Systems, 2003, 18(2). pp.786-792.

DOI: 10.1109/tpwrs.2003.811181

[9] LIU Zhao, LIU Bang-yin, DUAN Shan-xu, et al . DC capacitor voltage balancing control for cascade multilevel STATCOM [J]. Proceedings of the CSEE, 2005, 25(11) . p.7~12.

[10] Marian P K, Luigi M. Current control techniques for three-phase voltage-source PWM converters: A Survey. IEEE Trans Power Electronics, 1998, 45(5) . pp.691-703.

DOI: 10.1109/41.720325

[11] Prabha Kundur. Power system stability and control [M]. Beijing: China Electric Power Press, (2002).