摘要
针对目前电力系统重合闸成功率不高的情况,提出了一种基于电桥原理并利用电力线载波通道监视电力线路的绝缘情况,从而提高电力线路自动重合闸成功率的方法。文章对该方法的实现原理进行了研究,仿真结果验证了该方法的有效性。通过某变电站一条出线线路的实验结果,验证了该方法的实用性。对于线路长度相对较短的220 kV及以下电压等级的线路,该方法具有现实的应用前景。
Aiming at the fact of lower success rate of automatic re-closing in the power system, this paper introduces an improved method which is based on the electric bridge principle and utilizes the power line cerrier channel to monitor the insulation status. It also studies the realization principle of this method. A trail in a substation shows that this method is practicable especially for those power lines at 220 kV and below.
出处
《电力系统通信》
2007年第10期37-38,54,共3页
Telecommunications for Electric Power System
关键词
重合闸
结合滤波器
载波通道
衰耗
re-closing
coupling filter
carrier channel
attenuation
