摘要
针对异步电网发生全网大停电后的恢复问题,提出一种并行协调恢复策略的优化制定方法。采用串并行思想,通过高压直流协调送、受端电网,并最终实现全网恢复。基于各交流子网的送、受端角色定位,分析各换流站的电源、负荷特性。建立异步电网并行协调恢复的优化模型,重点研究直流与送、受端电网的协调恢复过程。采用多种群遗传算法求解,得到最优恢复方案并确定直流的最佳启动时机。基于IEEE 39节点系统构建异步电网算例,对所提方法进行验证。结果表明,该优化方法具有可行性,适用于异步电网恢复方案的制定。
Aiming at asynchronous power grid restoration after a blackout,an optimization method of parallel coordinated restoration strategy was proposed.This method adopted the thinking of serial and parallel restoration,used the high voltage direct current(HVDC)to coordinate sending end and receiving end power grids,and finally restored whole power system.Based on determining each AC subnet as a sending role or receiving role,the source characteristic of converter station in sending end gird and the load characteristic of converter station in receiving end gird were analysed.An optimization model for parallel coordinated restoration of asynchronous power grid was established,and the coordinated restoration process of HVDC,sending end and receiving end power grids were emphatically studied.The multi-population genetic algorithm(MPGA)was used to solve this model,then the optimal restoration scheme and the optimal starting time of HVDC were obtained.An asynchronous power grid example which was constructed based on the IEEE 39 bus system was given to verify the proposed method.The results showed that this optimization method was feasible,and it was suitable for the formulation of asynchronous power grid restoration scheme.
作者
顾雪平
杨超
梁海平
王元博
李少岩
GU Xueping;YANG Chao;LIANG Haiping;WANG Yuanbo;LI Shaoyan(School of Electrical and Electronic Engineering,North China Electric Power University,Baoding 071003,Hebei,China)
出处
《山东大学学报（工学版）》
CAS
CSCD
北大核心
2019年第5期9-16,共8页
Journal of Shandong University（Engineering Science）
基金
国家自然科学基金资助项目(51277076)
中央高校基金科研业务费专项资金资助项目(2018MS085)
关键词
异步电网
高压直流
送端和受端定位
并行协调恢复
多种群遗传算法
asynchronous power grid
HVDC
determination of sending end and receiving end
parallel coordinated restoration
multi-population genetic algorithm
