考虑含新能源孤网稳定特性的主动解列断面搜索方法
A search method for controlled islanding surface considering the stability of isolated net-work with new energy sources
刘明顺 1陈俊全 1马覃峰 1张青青 1王寅 1常东旭 2李成翔2
作者信息
- 1. 贵州电网有限责任公司电力调度控制中心,贵州 贵阳 550000
- 2. 直流输电技术国家重点实验室(南方电网科学研究院),广东 广州 510663;广东省新能源电力系统智能运行与控制企业重点实验室,广东 广州 510663
- 折叠
摘要
主动解列是保障电力系统稳定性,避免大面积停电的重要措施,通常将解列断面搜索抽象为单目标优化问题的研究方法,对于含新能源的复杂系统解列后孤网子系统的稳定性关注不足,所确定的解列断面合理性存疑.针对这一问题,文章提出了一种考虑含新能源孤网稳定特性的主动解列断面搜索方法.首先,基于节点间电气联系和潮流分布,以最小潮流冲击为目标确定初始解列断面;然后,考虑关键节点的电气耦合连接度和新能源渗透率,在初始解的邻域搜索空间中搜索最终的解列断面,以提升解列后孤网子系统的稳定性;最后,在新英格兰 10 机 39 节点系统中对所提解列断面搜索方法进行了仿真分析和验证.仿真结果验证了该方法的有效性和优越性.
Abstract
Controlled islanding is an important measure to ensure the stability of power system and avoid large-scale power outages.However,the traditional researches method that regard the splitting surface determination as a single objective optimization problem neglect the stability of isolated subsystem.Therefore,a control islanding strategy considering the stability of subsystem with new energy is proposed in this paper.Firstly,the initial islanding surface with the minimum power-flow disruption is obtained based on the electrical connections and power flow distribution between nodes.Then considering the electrical coupling connectivity of key nodes and the penetration of new energy,the final islanding surface is searched in the neighborhood search space of the initial solution,to improve the stability of the isolated network subsystem after splitting.Finally,the proposed method is analyzed based on the New England 39-bus system,and the simulation results validate the effectiveness and advancement of the method.
关键词
主动解列/断面搜索/新能源/孤网稳定性Key words
controlled islanding/islanding surface search/new energy/stability of isolated subsystem引用本文复制引用
基金项目
南方电网重点科技项目(066500KK52210040)
出版年
2024
国家科技期刊平台
NSTL
万方数据