超高压长线路中的工频谱振  

Power Frequency Resonance on EHV Transmission Lines

作　　者：陈维贤[1] 

机构地区：[1]武汉水利电力学院

出　　处：《中国电机工程学报》1989年第2期1-10,共10页Proceedings of the CSEE

摘　　要：当超高压长线的两侧同一个复杂的统一电网相联时,可将后者简化为一个带有集中参数的等效电源。文章首先分析了等效电源的最一般的表达形式及其参数的求解方法;接着,对于单相分闸和空线不对称切合两种情况,推导出了谐振条件的普遍适用的数学模型;最后,通过数值计算列出了典型的谐振曲线和揭示了若干重要性质。The complicated unified network connected into two terminals of an EHV transmission line can be simplified as two equivalent EMF with their internal impedances. This paper, firstly, presents the most common form of these EMF with impedances and also the method of resolution. Then, the mathematical models of resonance conditions which are universally applicable are derived for the cases of single-phase opening of operating, lines and of asymmetrical switching of no-loaded lines. Lastly, based on the numerical computation, the typical resonance curves are plotted and some important characteristics are revealed.

关 键 词：工频谐振 超高压长线路 输电线路 

分 类 号：TM726[电气工程—电力系统及自动化]