同步关合控制技术的研究及工程应用

Investigation into Synchronized Closing Control Technology for Circuit Breaker

同步关合技术能够从根本上抑制断路器随机关合电力设备时产生的涌流和过电压,因此,该技术的应用研究,对提高电力系统稳定性具有重要意义。笔者在国外相关资料的基础上,通过对断路器在额定工作条件下,控制电压变化,操作压力变化,环境温度变化,停机时间的不同以及闭锁SF6气体压力等工况下的机械特性数据整理、分析,为同步关合控制器提供补偿数据,并进行了自适应和给定补偿两种模式下的空载验证试验。最后,介绍了在工程中的成功应用,取得了该技术应用的初步结论,为日后广泛应用提供技术和经验保障。

The synchronized closing control technology can completely restrain the surge and overvoltage generated by a circuit breaker randomly closing a power equipment. So it is very important for the stability of transmission and distribution system. The authors analyzed relevant foreign literatures,and collected the data of circuit breakers＇ mechanical performances depending on control of voltage,stored spring energy,temperature,idle time, and SF6gas blocking pressure,in order to provide compensatory data for the synchronized closing control of the circuit breaker. A no-load test was conducted under two modes of adaptive compensation and given compensation. In addition,the application of the synchronized closing control technology in engineering is described.