电网黑启动方案关键问题探讨

作为四川电网的负荷中心,多种因素致使成都电网面临大面积停电事故的风险。制定切实可行的黑启动方案能保证严重停电事故后恢复控制的有效性。从电源恢复、路径寻优、负荷接入、安全校核、继电保护和方案评估等角度出发,就方案编制中存在的问题进行了针对性分析并提出相应改进建议。为使方案的制定方式由离线决策转变至在线实时决策,提出开发黑启动辅助决策系统将有利于调度运行部门正确处置大停电事故。在此基础上,探讨了黑启动辅助决策系统的体系架构和功能构成。

Discussion on Key Problems of Black-start Schemes for Power Grid

As the load center of Sichuan power grid, several factors will cause Chengdu power gird to face the risk of large - scale service interruption. Drawing up the feasible black - start schemes can guarantee the effectiveness of restoration control after the severe service interruption. As viewed from the power source restoration, path optimization, load connection, safety check, relay protection and scheme assessment etc, the pertinent analysis has been carried out and the relevant improvement suggestions towards the problems of scheme compilation are proposed. In order to make the scheme compiling mode convert from off- line decision making to on - line real - time decision making, it is put forward that developing a black - start assis- tant decision - making system will benefit the dispatching and operation departments to handle the service interruption correct- ly. On this basis, the architecture and functions of black - start assistant decision - making system is discussed.