基于动态孤岛的主动配电网多阶段故障恢复策略
Multi-stage Fault Recovery Strategy for Active Distribution Networks Based on Dynamic Islanding
龚逊东 1郭维嘉 2杨晨 1周力 1董晓峰 1朱俊澎2
作者信息
- 1. 国网江苏省电力有限公司苏州供电分公司,江苏苏州 215004
- 2. 河海大学能源与电气学院,江苏南京 211100
- 折叠
摘要
极端天气频发对配电网的弹性提出了更高要求,传统配电网故障恢复策略无法完全发挥主动配电网的潜能.为此,提出一种基于动态孤岛的主动配电网多阶段故障恢复策略.首先,分析了基于动态孤岛的配电网重构可行域,并考虑非黑启动机组(non-black start units,NBSU)等分布式电源的时序特征,从而建立上层负荷恢复模型,确定了多阶段的网络拓扑计划;其次,建立下层发电规划模型,给出相应的发电规划,在孤岛潮流层面对上层负荷恢复方案的可行性进行检验;然后,利用改进离散粒子群算法结合CPLEX求解器对所建立模型进行求解;最后,以改进 43 节点城市配电网为例,验证所提方法在弹性提升方面的有效性和优越性.
Abstract
Frequent occurrences of extreme weather impose higher demands on the resilience of distribution networks,and traditional fault recovery strategies are inadequate to fully unleash the potential of active distribution networks.Therefore,a multi-stage fault recovery strategy for active distribution networks based on dynamic islanding is proposed.Firstly,an analysis is made on the feasibility region of distribution network reconstruction based on dynamic islanding,and with consideration of the temporal characteristics of distributed generations such as non-black start units(NBSU),an upper-level load restoration model is established to determine the multi-stage network topology plan.Subsequently,the lower-level model is established to provide the generation plans,which is used to examine the feasibility of the multi-stage network topology plan at the islanded flow level.And then,the established models are solved using the improved discrete particle swarm combined algorithm with the CPLEX solver.Finally,a 43-node urban distribution network is used for simulation to verify the effectiveness and superiority of the proposed method in improving resilience.
关键词
动态孤岛/主动配电网/弹性/网络拓扑/非黑启动机组Key words
dynamic islanding/active distribution networks/resilience/network topology/non-black start units引用本文复制引用
基金项目
国网江苏省电力有限公司科技项目(J2022151)
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据