500kV高温超导限流器电网接入工程方案研究

Research on Connecting to Power Grid Engineering Solution for 500 kV Superconducting Fault Current Limiter

高温超导限流器(SFCL)是一种限制电网短路电流的有效措施,500 k V SFCL设备研制已有较大发展,对500k V SFCL接入电网系统的工程方案进行了研究,首先介绍了SFCL的工作原理,结合220 k V和35 k V SFCL投入电网的运行情况分析了SFCL的故障类型,接着针对500 k V SFCL的设备特点和电网要求,提出了一种主接线方案,该方案具有可靠性高,运行灵活,施工方便等特点,并给出了2个适用于不同工程环境情况下的平面布置方案。

Superconducting fault current limiter （SFCL） is an effective measure to limit short circuit current in power grid. The e- quipment research and development of 500 kV SFCL has been greatly developed. This paper makes a study on connecting to power grid engineering solution for 500 kV SFCL. Firstly, working principle of SFCL is introduced, and fault type of SFCL is classified ac- cording to 220 kV and 35 kV SFCL situation in operation. Then based on the equipment characters and demand of power grid, a rec- ommend single line scheme is represented which has advantages such as, more reliability, flexible operation, and easy construction etc. In the end, two layout solutions for different engineering environment conditions are represented.