【摘要】 分析了不同装机容量和不同输送距离下火电基地的输电能力及其所需的固定串补配置,并采用特征值分析方法对串补可能引发的次同步谐振(sub-synchronons resonance,SSR)进行了评估。结果表明,当火电基地装机容量大于2000MW,输送距离在400km以上,串补度在30%～50%时,将面临不同程度的SSR威胁。装机容量愈大,输电距离愈长,要求串补度愈高,SSR的危害愈严重。更多还原

【Abstract】 The transfer capability of thermal power bases under different installed capacities and transmission distances as well as its required fixed series compensation(FSC) are analyzed. By means of eigenvalue analysis the sub-synchronous resonance(SSR) that may cause by series compensation is evaluated. Analysis results show that the thermal power base will face with different extent of SSR risk while the installed capacity of thermal power base is more than 200MW,the transmission distance is longer than 400km and the series compensation ratio is between 30 percent and 50 percent. With the increment of installed capacity,transmission distance and series compensation level,the damage of SSR will be more serious.更多还原