串联电容补偿线路距离保护研究

Study of Series Capacitor Compensation Circuit Protection Distance

随着大容量远距离输电的发展,串联电容补偿技术在超高压、远距离输电中得到了广泛应用。文中介绍了串联电容补偿装置的构成、工作原理,以及等效模型的不同工作方式,分析了MOV的工作特性。串联电容补偿技术是一项成熟的技术,通过串联电容补偿线路感抗,缩短交流传输的电气距离,降低线路输送损耗,改善线路的电压质量,提高线路传输功率,更加合理地分布输送功率,提高系统的动态稳定和静态稳定性。

With the development of large capacity and long distance power transmission, series capacitor com-pensation techniques have been widely applied in ultra high voltage long-distance transmission. This paper introducesthe composition and working principle of series capacitor compensation device, and the equivalent model of the dif-ferent ways of working. The characteristics of MOV are analyzed. Series capacitor compensation technology is a ma-ture technology, by which the series capacitor compensation circuit inductance shortens electrical distance AC trans-mission, reduces line loss, and improves the line voltage quality and the transmission power with more reasonabledistribution of transmission power, system dynamic stability and static stability.