中国电力 ›› 2014, Vol. 47 ›› Issue (3): 120-124.DOI: 10.11930/j.issn.1004-9649.2014.3.120.4

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TCSC与SVC在抑制电力系统次同步谐振中应用比较

吴小刚1, 雷凡1, 袁宇2, 袁义桃1, 康积涛1   

  1. 1. 西南交通大学 国家轨道交通电气化与自动化工程技术研究中心,四川 成都 610031;
    2. 四川工商职业技术学院 机电工程系 四川 成都 611800
  • 收稿日期:2013-12-02 出版日期:2014-03-31 发布日期:2015-12-18
  • 作者简介:吴小刚(1987-),男,四川泸州人,硕士研究生,研究方向为电力系统稳定运行与控制。E-mail: xiaogang_wu@sina.cn

The Application Comparison of TCSC and SVC in Sub-Synchronous of Power System

WU Xiao-gang, LEI Fan, YUAN Yi-tao, KANG Ji-tao   

  1. National rail transit electrification and automation engineering technique research center, Southwest Jiaotong University,Chengdu 610031, China
  • Received:2013-12-02 Online:2014-03-31 Published:2015-12-18

摘要: 针对串补输电引起的电力系统次同步谐振SSR(振荡SSO),基于IEEE次同步谐振第一标准测试系统,采用测试信号法和时域仿真法,全面深入地比较了TCSC与SVC在抑制系统SSR(SSO)中的作用和效果。研究发现:TCSC与SVC均能有效抑制次同步谐振,但由于两者分属串、并联设备,故又有各自的特点。投入相同容量时,TCSC较SVC抑制效果更优,提升电气阻尼能力更强;在相同抑制效果下所需TCSC容量要少于SVC,但投资偏高;两者注入电网谐波均为奇次谐波,且以3、5、7次为主;后期运行维护自动化程度较高,应根据装置的不同薄弱环节进行针对性的维护。

关键词: 次同步谐振, 可控串补, 静止无功补偿器, 抑制效果, 谐波

Abstract: Aimsat the problem of Sub-synchronous resonance(oscillation) caused by series compensated transmission of power system, based on the standard IEEE sub-synchronous resonance test systems, The inhibitory effect of TCSC and SVC was researched exhaustive and thorough by test signal method and time domain simulation method. The research shows: TCSC and SVC both can effectively inhibit the sub-synchronous resonance, but because they belong to the series and parallel devices, so the own characteristics are different. When in the same capacity case, the inhibitory effect of TCSC was better than SVC as well as the enhance capabilities of electrical damping; in the same inhibitory effect case, the capacity of TCSC was required less than SVC; however, the investment was higher. The harmonics that injected into grid by TCSC and SVC were both odd harmonics, and the 3,5,7 times were main component. The latter part of the operation and maintenance was in a high degree of automation and targeted maintenance should be set based on the weak link of the device.

Key words: Sub-synchronous resonance, TCSC, SVC, Inhibitory effect, harmonics

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