【摘要】 根据采用复数力矩系数法分析次同步振荡的要求 ,在分析TCSC的物理特性的基础上 ,建立了可控串联补偿电容(TCSC)的数学模型 ,推导出适用于复数力矩系数法的TCSC的复频域等效端口导纳矩阵 ,在此基础上可方便地利用复频域扫描法分析TCSC对电力系统次同步谐振的影响。对 1个 2机 5节点系统用所提方法进行了次同步谐振分析 ,同时进行了全时域数字仿真 ,数字仿真结果验证了所提方法的有效性。更多还原

【Abstract】 With the development and application of FACTS in power system, it is necessary to study the effects of the FACTS devices on the sub synchronous resonance (SSR) of power system. The complex torque coefficient (CTC)method has been applied to analyze the damping of the electro mechanical system. To meet the requirements, a novel model of TCSC suitable for analyzing SSR of power system with CTC method is introduced and a complex frequency domain port equivalent conductance matrix of TCSC is therefore obtained. With the complex frequency scanning program, the damping effects of the TCSC on the SSR of a two machine five bus test system are investigated. Some useful conclusions are obtained. Time domain simulation validates the conclusions obtained above in this paper.更多还原