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电网技术  2011 

基于特征值法的次同步阻尼守恒特性分析

, PP. 80-84

Keywords: 特征值分析法,次同步振荡,高压直流输电,次同步阻尼控制器,串联电容补偿,阻尼守恒

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Abstract:

运用特征值分析法,分别对含有串联补偿电容的交流系统和含有附加次同步阻尼控制器(supplementalsubsynchronousdampingcontroller,SSDC)的HVDC系统的次同步振荡(subsynchronousoscillation,SSO)特性进行了研究。分析了在含有串联补偿电容的交流系统中,补偿度改变时系统总阻尼守恒的机制,以及在含有SSDC的HVDC系统中,SSDC放大倍数改变时系统总阻尼守恒的机制,揭示了系统各振荡模态阻尼的变化规律。

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