中文摘要：

针对目前由串补电容引起的次同步振荡问题日益严重的现象,文章拟利用TCR型SVC抑制次同步振荡。通过对次同步振荡与SVC的原理的研究,文章用MATLAB/SIMULINK建立了TCR型SVC仿真模型,并采用IEEE第一标准的模型来验证文章建立的模型的有效性。通过次同步振荡研究的时域仿真技术得出第一标准模型在安装SVC时,次同步振荡现象明显小于不安装SVC时。文章进一步对不同类型SVC在抑制次同步振荡的特点进行对比分析,对TCR型SVC进行优化,得出了改进后的SVC对次同步振荡抑制的效果会进一步提高的结论。

英文摘要：

According to the present serious phenomenon of series capacitor compensation inducing sub-synchronous oscillations, this paper proposed to use TCR SVC to suppress the sub-synchronous oscillations. Based on the research of the sub-synchronous oscillations and SVC theories, this paper used MATLAB/SIMULINK to establish TCR SVC simulation models. The effectiveness of models was tested by the IEEE first standard model of researching sub-syn- chronous oscillations. MATLAB was used to do domain simulation of this model which was with and without SVC. Comparing the different types of SVC＇s features on suppressing the sub-synchronous oscillations, this paper improves the SVC based on the comparison. The conclusion can be got that the improved SVC has a better effect on suppressing the sub-synchronous ~scillations.