内蒙古电力技术2025，Vol.43Issue(4)：46-55,10.DOI:10.19929/j.cnki.nmgdljs.2025.0048
基于储能和柔性多状态开关的智能配电网馈线离网切换控制策略研究
Research on Control Strategy for Feeder Off-Grid Switching on Intelligent Distribution Network Based on Energy Storage and Flexible Multi-State Switch
摘要
Abstract
Intelligent distribution network based on energy storage and flexible multi-state switch will cause significant voltage deviation when the planned and unplanned feeder off-grid occurs.In order to improve the stability of the system,a planned feeder off-grid switching sequence is designed,which can reduce the exchange power between the AC power grid and the system to zero in advance.For unplanned feeder off-grid,power feed-forward control is introduced in the constant voltage control of the battery,which can quickly release the battery energy at the moment of feeder off-grid.To address the phase mutation problem for the fault load after the feeder off-grid,an improved V/f control strategy with the off-grid phase-locking function is proposed.The simulation results under different working conditions show that the intelligent distribution network function control strategies based on energy storage and flexible multi-state switches can achieve smooth switching when the planned feeder off-grid occurs,reduce bus voltage fluctuations when the unplanned feeder off-grid occurs,and quickly realize phase locking and tracking after off-grid switching,ensuring the stability of system operation.关键词
柔性多状态开关/蓄电池/馈线离网/平滑切换/功率前馈/离网锁相Key words
flexible multi-state switch/battery/feeder off-grid/smooth switching/power feed forward/off-grid phase locking分类
信息技术与安全科学引用本文复制引用
马越超,徐宇,秦韬..基于储能和柔性多状态开关的智能配电网馈线离网切换控制策略研究[J].内蒙古电力技术,2025,43(4):46-55,10.基金项目
内蒙古电力(集团)有限责任公司2024年博士后科技项目"基于储能的柔性多状态开关优化协调控制技术研究"(2024-4-54) （集团）
