【摘要】 电力系统发生大停电事故后,需要将大规模系统划分为几个分区并对每个分区进行并行恢复,然后通过并网来实现整个系统的恢复。该文将系统分区策略与分区内部节点的恢复路径、恢复顺序统一考虑,结合经典的最短路径法与遗传算法,实现最优系统分区恢复方案的求解。在该文算法中,考虑了机组在恢复过程中的启动时间限制,可保证尽可能多的电源点得到及时恢复,并对得到的各分区网架进行潮流的计算校验,对发生潮流越限的分区进行适当调整。以IEEE30节点系统和河北南网系统作为算例验证该文算法的有效性。更多还原

【Abstract】 After blackout, in order to restore the normal operation of the power system rapidly, the system can be partitioned into several subsystems and restored them in parallel. In this paper, the system-partitioning strategy as well as the node-restoration path and sequence in each subsystem are considered, and the classic Dijkstra algorithm and genetic algorithm are employed to obtain the optimal restoration plan. Meanwhile, time requirements for unit start-up are considered to restore the generation capacity as much as possible. To each subsystem, the power flow constraints are checked and necessary adjustment is carried out in the subsystems with violation of the constraints. The effectiveness of the proposed method is validated by the numerical results on IEEE 30-bus system and the southern power system of Hebei province, China.更多还原