We propose a three-stage resilient unit commitment model which considers uncertain typhoon paths and line outages to improve the power system resilience against typhoon events. The proposed solution coordinates resources in response to the worst-case scenario for each possible typhoon path. The optimal decision is based on the characterization of the power system schedule into three stages of preventive control, emergency control, and restoration. Preventive control is performed before the typhoon occurs by quickly adjusting the three-stage resilient unit commitment schedule; emergency control is conducted during the typhoon by shedding local loads to meet the power balance, while other control strategies are assumed to be unavailable due to possible interruptions in the communication system; restoration is realized after the typhoon, when resources are optimally dispatched to repair the outages of critical devices and recover the normal operation state of the power system quickly. Considering the typhoon path uncertainty, we have introduced a stochastic model for possible typhoon paths where all possible affected lines along each typhoon path are assumed to be on outage during the typhoon. Accordingly, we explore the strategy for co-optimizing the three stages in unit commitment. The proposed model is tested on the IEEE 118-bus system and the real-world provincial system to verify its effectiveness.

中文翻译：

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利用三阶段超前机组承诺提高台风的电力系统弹性

我们提出了一个三阶段的弹性机组承诺模型，该模型考虑了不确定的台风路径和线路中断，以提​​高电力系统对台风事件的抵御能力。所提出的解决方案针对每种可能的台风路径协调资源，以应对最坏的情况。最佳决策基于电力系统计划的特征，该特征分为预防控制，紧急控制和恢复三个阶段。通过快速调整三阶段弹性单元的承诺时间表，在台风发生之前进行预防性控制；在台风期间，通过释放局部负荷来满足功率平衡来进行紧急控制，而由于通信系统可能出现的中断，其他控制策略被认为是不可用的；台风过后，恢复工作得以实现，最佳地分配资源以修复关键设备的故障并快速恢复电力系统的正常运行状态。考虑到台风路径的不确定性，我们为可能的台风路径引入了一个随机模型，其中假设每个台风路径上所有可能受影响的线在台风期间都处于中断状态。因此，我们探索了共同优化单位承诺三个阶段的策略。该模型在IEEE 118总线系统和实际的省级系统上进行了测试，以验证其有效性。我们为可能的台风路径引入了一个随机模型，其中假定沿着每个台风路径的所有可能受影响的线在台风期间都处于中断状态。因此，我们探索了共同优化单位承诺三个阶段的策略。该模型在IEEE 118总线系统和实际的省级系统上进行了测试，以验证其有效性。我们为可能的台风路径引入了一个随机模型，其中假定沿着每个台风路径的所有可能受影响的线在台风期间都处于中断状态。因此，我们探索了共同优化单位承诺三个阶段的策略。该模型在IEEE 118总线系统和实际的省级系统上进行了测试，以验证其有效性。