Research on Generator Tripping Value of Security and Stability Control

Abstract:

In this paper, the problem of the excessive generator tripping value of security and stability control after occurrence of the N-2 fault in the Shentou-Yantong transmission line of Shanxi DaTong Regional grid is studied. And the principle of security and stability control measures based on equal area criterion is analyzed. The reason leading to excessive generator-tripping value of security and stability control after the occurrence of the N-2 fault in Shentou-Yantong region is figured out, and it is that the steady-state stability limit of transmission section decreases and the accelerator power cannot be released. Finally, the results of theoretical analysis are verified by simulations. The simulation results indicate that too large generator-tripping value of security and stability control is mainly caused by decrease of the steady-state stability limit of the transmission section after occurrence of the fault in Datong. The conclusions in the paper have referential significance for the study on similar power concentrated send-out systems.

• Periodical: Applied Mechanics and Materials (Volumes 494-495)
• Pages: 1795-1800
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.494-495.1795
• Online since: February 2014
• Authors: Hui Ping Zheng*, Yu Long Yang, Shu Yong Song, Xin Yuan Liu, Min Xue, Wen Chao Zhang
• Keywords: Equal Area Criterion, Power Concentrated Send-Out System, Security, Stability Control, Steady-State Stability Limit

References

[1] Han Zhenxiang, Xue Yusheng, Qiu Jiaju．A review of CIGRE'2000 on power system interconnection [J]． Automation of Electric Power Systems, 2000, 24(24): 1-4.

[2] Gomes P．New strategies to improve bulk power system security: lessons learned from large blackouts[C]/Power Engineering Society General Meeting．Denver, USA: IEEE, 2004: 1703—1708.

DOI: 10.1109/pes.2004.1373163

[3] Zhu Fang, Tang Yong, Zhang Dongxia, et a1．Study on dynamic stability problems of AC interconnected area power grids in China and their solutions[J]．Power Systems Technology , 2004, 28(15): 1-5.

[4] Zhang Yuying, on foundation of safe and reliable operation of national power system[J]．Electric Power Automation Equipment, 2007, 27(6): 122-124.

[5] Zhu Fang, Zhao Hongguang, Liu Zenghuang, et a1．The influence of large power grid interconnected on power system dynamic stability [J]．Proceedings of the CSEE, 2007, 27(1): 1-7.

[6] Ren Wei, Fang Dazhong, Chen Jiarong, et a1．A fast algorithm to generation capacity tripped by emergency control for transient stability of large power system [J]．Power System Technology, 2008, 32(19): 10-15(in Chinese).

[7] Li Qiang, Lin Tao, Gao Yuxi, et a1．Simulation of transient in interconnection test of regional power grids[J]．Power System Technology, 201 0, 34(3): 85-89(in Chinese).

[8] Chen Yiping, Hong Jun．Analysis on causes of blackout occurred in Brazilian power grid on Nov．11, 2009 and lessons drawn from it to China southern power grid [J]．Power System Technology, 2010, 34(5): 77—82(in Chinese).

[9] ZHANG Yan, WANG Jianquan, HE Benteng．A new method of expression and storage on decision table for the stability control of power systems[J]．Relay, 2003, 31(12): 55—57.

[10] WU Guobing, WANG Yang, YANG Yinguo, ea al．Management Station Design and Development of Security—stability Control System [J]．Automation of Electric Power Systems, 2012, 36(10): 118-122.

[11] Qiu Xizhao, Mou Hong．Application of EEAC in Security and Stability Control Analysis for Shandong Power Network [J]．Automation of Electric Power Systems, 1999, 16(23).

[12] WU Guoyang, SONG Xinli, TANG Yong, ea al．Modeling of Security and Stability Control System for Power System Dynamic Simulation [J]．Automation of Electric Power Systems, 2012, 36(3): 71-75.

[13] SONG Jinhai, LI Xueming, JI Changan, ea al．Current situation and development Prospect of security and stability Control Equipment [J]．Automation of Electric Power Systems, 2005, 29(23): 91-95.

[14] CHEN Xinghua, WU Liexin, WU Guobing, ea al．Distributing algorithm of load-shedding for security and stability control system [J]．Relay, 2007, 35(11): 26-29.

[15] LI guangqi, Power system transient analysis[M], 3rd edition, Beijing: China Electric Power Press, 2006: 204-210.

[16] WU Zheng-qiu, KUANG Wen-kai, YANG Hong-bo．Single Generator Equal Area Criterion Based Power System Transient Stability Analysis[J]．Proceedings of the CSU—EPSA, 2010, 22（4）: 64-70.