考虑机组低频保护的电力系统暂态频率稳定评估

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (743 KB) HTML (0 KB)
Export: BibTeX | EndNote (RIS)

Abstract Frequency stability is the ability of a power system to maintain steady frequency during severe system upset. Mechanism of transient frequency instability is discussed. Unit tripping due to underfrequency relay may worsen active power imbalance and is treated as a necessary condition of transient frequency instability. A transient frequency stability index with fine linearity is defined with critical disturbance of unit underfrequency relay. Considering spinning reserve and underfrequency load shedding, an analytic model of frequency response is deduced for fast evaluation of transient frequency stability with reasonable simplification of turbine-governor system. Simulations show that system transient frequency stability can be evaluated with the proposed method quickly and effectively.

Key words： Transient frequency stability (TFS) unit underfrequency relay transient frequency deviation security (TFDS) power system

Received: 31 August 2012 Published: 28 November 2013

PACS:

TM732

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Li Changgang
	Zhang Hengxu
	Liu Yutian
	Sun Huadong
	Tang Yong

Cite this article:

Li Changgang,Zhang Hengxu,Liu Yutian等. Power System Transient Frequency Stability Assessment Considering Unit Underfrequency Relay Protection[J]. Transactions of China Electrotechnical Society, 2013, 28(2): 271-278.

URL:

http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I2/271

[1] IEEE/CIGRE Joint Task Force on Stability Terms and Definitions. Definition and classification of power system stability[J]. IEEE Transactions on Power Systems, 2004, 19(2): 1387-1401.
[2] 孙华东, 汤涌, 马世英. 电力系统稳定的定义与分类述评[J]. 电网技术, 2006, 30(17): 31-35.
Sun Huadong, Tang Yong, Ma Shiying. A commentary on definition and classification of power system stability[J]. Power System Technology, 2006, 30(17): 31-35.
[3] 佘庆媛, 沈沉, 乔颖, 等. 电力系统低压减载和低频减载协调控制策略[J]. 电力系统自动化, 2008, 32(23): 23-27.
She Qingyuan, Shen Chen, Qiao Ying, et al. A coordinated load shedding scheme for both under-voltage and under-frequency load shedding[J]. Automation of Electric Power Systems, 2008, 32(23): 23-27.
[4] 李爱民, 蔡泽祥. 基于轨迹分析的互联电网频率动态特性及低频减载的优化[J]. 电工技术学报, 2009, 24(9): 171-177.
Li Aimin, Cai Zexiang. Frequency dynamics analysis and load shedding assessment based on the dynamic simulation trajectory of interconnected power system[J]. Transactions of China Electrotechnical Society, 2009, 24(9): 171-177.
[5] 刘梦欣, 王杰, 陈陈. 电力系统频率控制理论与发展[J]. 电工技术学报, 2007, 22(11): 135-145.
Liu Mengxin, Wang Jie, Chen Chen. Theory and development of power system frequency control[J]. Transactions of China Electrotechnical Society, 2007, 22(11): 135-145.
[6] 易俊, 周孝信. 考虑系统频率特性以及保护隐藏故障的电网连锁故障模型[J]. 电力系统自动化, 2006, 30(14): 1-5.
Yi Jun, Zhou Xiaoxin. Cascading failure model of power grids considering frequency response characteristics and hidden failures[J]. Automation of Electric Power Systems, 2006, 30(14): 1-5.
[7] 王梅义. 大电网事故分析与技术应用[M]. 1版. 北京: 中国电力出版社, 2008.
[8] UCTE. Final report of the investigation committee on the 28 September 2003 blackout in Italy[R]. 2004.
[9] 林伟芳, 涌汤, 孙华东, 等. 巴西“2.4”大停电事故及对电网安全稳定运行的启示[J]. 电力系统自动化, 2011, 35(9): 1-5.
Lin Weifang, Tang Yong, Sun Huadong, et al. Blackout in Brazil power grid on February 4, 2011 and inspirations for stable operation of power grid[J]. Automation of Electric Power Systems, 2011, 35(9): 1-5.
[10] Ministry of Power, Government of India. Report of the enquiry committee on grid disturbance in Northern region on 30th July 2012 and in Northern, Eastern & North-Eastern Region on 31th July 2012[R]. New Delhi, 2012.
[11] 赵渊, 吴小平, 谢开贵. 基于频率动态特性的电力系统频率失稳概率评估[J]. 电工技术学报, 2012, 27(5): 212-220.
Zhao Yuan, Wu Xiaoping, Xie Kaigui. Probabilistic assessment for frequency instability of power system based on frequency dynamic characteristic[J]. Transactions of China Electrotechnical Society, 2012, 27(5): 212-220.
[12] Cai Z X, Ni Y X. A direct method for frequency stability analysis of power system[C]. Proceedings of International Conference on Advances in Power System Control, Operation and Management, 2000, Hong Kong: 285-289.
[13] Larsson Mats, Rehtanz Christian. Predictive frequency stability control based on wide-area phasor measurements[C]. Proceedings of IEEE Power Engineering Society Summer Meeting, 2002, Chicago, USA: 233-238.
[14] 张恒旭, 李常刚, 刘玉田, 等. 电力系统动态频率分析与应用研究综述[J]. 电工技术学报, 2010, 25(11): 169-176.
Zhang Hengxu, Li Changgang, Liu Yutian, et al. Reviews on power system dynamic frequency analysis and its application[J]. Transactions of China Electrotechnical Society, 2010, 25(11): 169-176.
[15] IEEE Std C37.106. IEEE guide for abnormal frequency protection for power generating plants[S]. Power System Relaying Committee of IEEE Power Engineering Society, 2003.
[16] 张恒旭, 刘玉田, 薛禹胜. 考虑累积效应的频率偏移安全性量化评估[J]. 电力系统自动化, 2010, 34(24): 5-10.
Zhang Hengxu, Liu Yutian, Xue Yusheng. Quantitative assessment of transient frequency deviation security considering cumulative effect[J]. Automation of Electric Power Systems, 2010, 34(24): 5-10.
[17] Chan Man L, Dunlop R D, Schweppe Fred. Dynamic equivalents for average system frequency behavior following major disturbances[J]. IEEE Transactions on Power Apparatus and Systems, 1972, 100(5): 2635-2642.
[18] 李常刚, 刘玉田, 张恒旭, 等. 基于直流潮流的电力系统频率响应分析方法[J]. 中国电机工程学报, 2009, 29(34): 36-41.
Li Changgang, Liu Yutian, Zhang Hengxu, et al. Power system frequency response analysis based on the direct current loadflow[J]. Proceedings of the CSEE, 2009, 29(34): 36-41.
[19] Anderson P M, Mirheydar M. A low-order system frequency response model[J]. IEEE Transactions on Power Systems, 1990, 5(3): 720-729.
[20] Aik Denis Lee Hau. A general-order system frequency response model incorporating load shedding analytic modeling and applications[J]. IEEE Transactions on Power Systems, 2006, 21(2): 709-717.