大量分布式电源接入的配电网自适应重合闸及故障恢复策略

doi:10.16183/j.cnki.jsjtu.2024.073

上海交通大学学报 ›› 2026, Vol. 60 ›› Issue (1): 42-50.doi: 10.16183/j.cnki.jsjtu.2024.073

• 新型电力系统与综合能源 • 上一篇下一篇

大量分布式电源接入的配电网自适应重合闸及故障恢复策略

王若琪¹, 胡炎¹(), 杨增力², 王晶², 吴迪², 张振²

¹ 上海交通大学电子信息与电气工程学院, 上海 200240
² 国网湖北省电力有限公司, 武汉 430077

收稿日期:2024-03-11 修回日期:2024-04-19 接受日期:2024-08-30 出版日期:2026-01-28 发布日期:2026-01-27
通讯作者: 胡炎 E-mail:yanhu@sjtu.edu.cn.
作者简介:王若琪(2000—),硕士生,从事电力系统保护与控制研究.
基金资助:
国网湖北省电力有限公司科技项目(52150522000W)

Adaptive Reclosing and Fault Recovery Strategies for Large Scale Distributed Generation Access in Distribution Networks

WANG Ruoqi¹, HU Yan¹(), YANG Zengli², WANG Jing², WU Di², ZHANG Zhen²

¹ School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
² State Grid Hubei Electric Power Co., Ltd., Wuhan 430077, China

Received:2024-03-11 Revised:2024-04-19 Accepted:2024-08-30 Online:2026-01-28 Published:2026-01-27
Contact: HU Yan E-mail:yanhu@sjtu.edu.cn.

摘要/Abstract

摘要：

高渗透率分布式电源接入电网对配电网故障场景下的供电恢复提出更高要求,研究配电网故障恢复可以提高配电系统的可靠性和稳定性.为了提升配电网的恢复能力,提出结合重合闸技术与分布式电源低电压穿越特性的故障恢复方案.运用时域分析方法,探讨快速恢复供电的关键措施,结合柔性软开关实现故障场景下的负荷转供与电压支撑,从而减少分布式电源的脱网率.具体方法包括针对故障位置两侧设计不同的配电网故障恢复策略,并在MATLAB/Simulink平台上搭建仿真模型进行验证.仿真结果表明:所提方案能够有效降低分布式电源脱网风险,提升系统的供电可靠性与新能源利用效率.

关键词: 分布式电源, 配电网故障恢复, 低电压穿越, 柔性软开关

Abstract:

High penetration distributed generation (DG) in power grids has placed greater demands on power supply recovery in distribution network fault scenarios. Research on fault recovery in distribution networks is essential for improving the reliability and stability of distribution systems. In order to enhance the recovery capability of the distribution network, this paper proposes a fault recovery scheme which combines reclosing technology with the low-voltage ride through (LVRT) characteristics of distributed power sources. As an important method for quickly restoring power supply, adaptive reclosing, when coordinated with the LVRT capability of DG in the time domain, can effectively reduce the disconnection rate of DG from the grid. In fault scenarios, flexible soft switches play an important role in load transfer and voltage support, which not only ensures continuous power supply to users but also enhances the utilization efficiency of renewable energy sources and reduces their disconnection rate. This paper proposes different fault recovery schemes for both sides of the fault location in the distribution network, and finally proves the effectiveness and feasibility of the proposed fault recovery scheme by developing a simulation model on the MATLAB/Simulink simulation platform.

Key words: distributed generation (DG), distribution network fault recovery, low-voltage ride through (LVRT), soft open point (SOP)

中图分类号:

TM762.2

王若琪, 胡炎, 杨增力, 王晶, 吴迪, 张振. 大量分布式电源接入的配电网自适应重合闸及故障恢复策略[J]. 上海交通大学学报, 2026, 60(1): 42-50.

WANG Ruoqi, HU Yan, YANG Zengli, WANG Jing, WU Di, ZHANG Zhen. Adaptive Reclosing and Fault Recovery Strategies for Large Scale Distributed Generation Access in Distribution Networks[J]. Journal of Shanghai Jiao Tong University, 2026, 60(1): 42-50.

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VSC1	VSC2	系统运行方式
PQ控制	V_dcQ控制	正常运行
V_dcQ控制	PQ控制	正常运行
V/f控制	V_dc控制	VSC1侧发生故障
V_dcQ控制	V/f控制	VSC2侧发生故障

参数	取值	线路阻抗
线路AB长度/km	2	正序电阻R₁=0.175 Ω/km
线路BC长度/km	2	正序电感L₁=0.001 21 H/km
线路CD长度/km	6	正序电容C₁=0.383 2 μF/km
线路DE长度/km	2	零序电阻R₀=0.23 Ω/km
线路FG长度/km	2	零序电感阻L₀=0.005 47 H/km
		零序电容C₀=0.398 μF/km
系统电源电压/kV	10
负荷容量/MW	2
DG容量/MW	3

方案	停电持续时间/s	断电负荷/MW	DG脱网率/%
联切DG+使用联络开关的重合闸与故障恢复方案	>2	4	100
所提重合闸与故障恢复方案	0	0	28.57

大量分布式电源接入的配电网自适应重合闸及故障恢复策略

Adaptive Reclosing and Fault Recovery Strategies for Large Scale Distributed Generation Access in Distribution Networks

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