中文摘要：

合理的电力网架恢复策略对大停电后电力系统的快速恢复具有重要意义。采用时序恢复策略进行电力网架恢复,分步进行机组启动顺序优化和路径恢复顺序优化。第一步以网架恢复时间内系统发电能力最大为目标优化机组启动顺序,并计及机组启动功率、临界时间等约束条件;第二步优化路径恢复顺序,通过模糊数学中的隶属度函数对输电元件潜在损坏概率进行建模,并设计策略优先恢复潜在损坏概率小、重要度高且过电压风险低的输电元件。两个步骤之间通过路径操作时间相关联,有效地实现了两个目标的一致性优化。IEEE 39节点系统算例验证了所提方法的有效性,并表明所提方法自动避开了潜在损坏概率较高的元件,形成了合理的电力网架恢复时序方案,更加符合电力系统恢复的实际需求。

英文摘要：

Rational network restoration strategies are important for rapid power system restoration after complete blackout. Time sequence restoration strategy is used to restore network in this paper. Start-up sequence optimization of generating units and path restoration optimization are considered as two steps. Start-up sequence of generating units is determined by maximizing generation capacity during network restoration process considering start-up power requirement and critical interval constraints in the first step. Path restoration sequence is optimized in the second step with transmission element potential damage probability model with fuzzy membership functions. Strategy is designed to firstly restore power elements with low potential damage probability,high importance and low overvoltage risk. The two steps are correlated with path operation time to effectively optimize the two determinations together. The proposed method is validated with IEEE 39-bus system. Results show that the proposed method can automatically keep away from elements with big potential damage probability and form rational sequence restoration scheme to better satisfy real requirements in power system restoration.