串联谐振型短路限流器对次同步谐振影响的研究  

Research on Impact of Series Resonant FCL on Subsynchronous Resonance

作　　者：翁情安[1] 孙闻[1] 张晓天[1] 胡永瑞[2] 徐政[2] 

机构地区：[1]广东电网公司电力科学研究院,广东广州510080 [2]浙江大学电气工程学院,浙江杭州310027

出　　处：《广东电力》2012年第5期28-32,共5页Guangdong Electric Power

摘　　要：介绍了串联谐振型短路限流器的结构、原理以及次同步谐振的机理。以广东电网2015年丰大、丰小、枯大3种运行方式的规划数据作为研究对象,采用状态空间分析法分析了在典型电厂电力送出线路上加装串联谐振型短路限流器对发电机组次同步谐振特性的影响,计算系统次同步频率范围内的特征值,并以此分析系统的稳定性。结果表明,串联谐振型短路限流器会引发系统次同步谐振,在工程应用中应重点关注该问题。The paper introduces structure and principle of series resonant fault current limiter as well as mechanism of subsynchronous resonance. The paper takes data of maximum operating mode in high-water period, minimum operating mode in high-water period and maximum operating mode in low-water period of Guangdong power grid in 2015 as subject investigated and it analyzes impact of mounting series resonant FCL in transmission lines of power plant upon subsynchronous resonance of generating units by using state space analysis method. Characteristic value within subsynchronous frequency of the system is calculated; furthermore, system stability is also analyzed. The result shows that series resonant FCL can lead to subsyn- chronous resonance, attention to which should be paid in technical application.

关 键 词：串联谐振型短路限流器 次同步谐振 状态空间分析法 特征值 

分 类 号：TM744[电气工程—电力系统及自动化]