百万机组孤岛运行的电气安全性分析

Analysis on Electrical Safety for Island operation of 1000MW unit

孤岛运行是发电机组一种特殊的运行工况,具备孤岛运行能力的大型火电机组可以作为电网黑启动的电源点。本文介绍了百万机组实现孤岛运行的必要性和性能配置,通过对孤岛运行的触发和并网过程进行仿真和试验,论证了孤岛运行的电气安全性以及利用90%额定电压空充线路方案的可行性。

Island operation is a special working condition of power unit. Large thermal power generating unit with the ability of island operation can be used as a black start power. This paper introduces the necessity and performance configuration of 1000MW units to achieve island operation ability. Simulation experiments of island-operating and power grid interconnecting demonstrates the security of island operation and the feasibi of the scheme with 90% rated voltage charging circuit.