摘要
在经济发展的推动下社会用电量持续攀升,电网规模日趋庞大,各地区电网间的互联程度愈加紧密,大量送入电流所造成的短路电流超标问题日益突出。针对现有电网短路电流超标问题,分析电力系统短路电流超标的原因和危害;针对国内外主要短路电流限制技术的应用现状,研究并归纳现有限流技术的特点及适用范围。最后指出短路电流控制研究是一项系统工程,电网规划是解决短路电流超标问题的根本办法,应从全局角度综合优化配置各类限制措施,寻求经济有效的解决方案。
Under the promotion of economic development, social power consumption increases, and the scale of power grid is becoming larger. Power grids between regions are interconnected tightly, and the problem of short-circuit current over-limitation caused by the exchange current absorbed becomes more serious. To the problem of short-circuit current over-limitation in power grid, the cause and damage of the problem in the power system are analyzed. In view of the application status of the main fault current limiting technologies at home and abroad, the characteristics and application field of the existing fault current limiting technology are studied and summarized. Finally, it is pointed out that the study of short-circuit current control is a systematic project, and power system planning is proposed as the fundamental way solve the problem of short-circuit current over-limitation. All kinds of limiting measures should be optimized and configured from an overall point of view to seek economical and effective solutions.
出处
《智能电网》
2016年第8期772-775,共4页
Smart Grid
关键词
电网
短路电流
限制措施
故障限流器
power grid
short-circuit current
limiting measure
fault current limiter
