摘要 在电力系统出现故障后,恢复非故障区域的供电可有效提高系统自愈能力。针对应急发电机、储能装置辅助的海上多平台互联电力系统,提出了一种适用于孤岛电网故障后的供电恢复策略。首先,提出了电源恢复优化模型所考虑的4种指标:故障恢复效果、故障恢复时间成本、对非故障区域内潮流影响和启动应急发电机数量。此外,给出了具有潮流约束、网络安全约束和网络拓扑约束的故障后供电恢复优化模型。然后,将遗传算法应用于该供电恢复策略中,通过改变电力系统中开关的分合状态来调整电网的运行方式,进而恢复非故障区域的供电。最后,结合IEEE 53节点配电系统和海上多平台互联电力系统的大量仿真实验,验证了所提电源恢复策略的有效性,此外,还评估了含储能的海上多平台互联电力系统的自愈控制能力。 The power supply restoration in fault-free areas can effectively improve the system self-healing ability after power system fault.For offshore multi-platform interconnected power systems with emergency generators and energy storage device,this paper proposes a power supply restoration strategy for island power grids after fault.First,four kinds of indicators is proposed in the optimization model for power supply restoration,i.e.,the fault recover effect,the time cost of fault recovery,the influence on power flow in fault-free area,and the number of the emergency generators.Moreover,the optimization model is given with the constraints of power flow,network safety and topology.Then,the genetic algorithm is used in the power supply restoration strategy to adjust the switching state of the power system,to recover the power supply in the fault-free area.Finally,the effectiveness of the proposed power supply restoration strategy is validated through the extensive simulation experiments on IEEE53-bus distribution system and the offshore multi-platform interconnected power system.In addition,the self-healing control ability of the offshore multi-platform interconnected power system with the energy storage device is evaluated.
机构地区 浙江大学电气工程学院 中海油研究总院有限责任公司
出处 《电力系统自动化》 EI CSCD 北大核心 2021年第7期53-61,共9页 Automation of Electric Power Systems
基金 国家重点研发计划资助项目(2018YFB0904800) 国家自然科学基金资助项目(51777183)。
关键词 系统自愈 供电恢复策略 应急发电机 储能 海上多平台互联电力系统 system self-healing power supply restoration strategy emergency generator energy storage offshore multi-platform interconnected power system
