电力系统自动化2025，Vol.49Issue(6)：165-175,11.DOI:10.7500/AEPS20240520004
基于链式无功补偿的中压馈线柔性互联开关
Flexible Interconnection Switch of Medium-voltage Feeder Based on Cascaded Reactive Power Compensation
摘要
Abstract
To solve the problem that the reactive power compensation devices in medium-voltage distribution networks cannot adjust the active power and the feeders need flexible interconnection,this paper proposes a flexible interconnection switch of medium-voltage feeder based on cascaded reactive power compensation.This flexible interconnection switch can simultaneously achieve reactive power compensation within the feeder and flexible exchange of partial active power between feeders,which is suitable for the scenario where there is a fixed reactive power compensation requirement within the feeder and a flexible interconnection requirement between feeders.Firstly,the topology and the working principle of the flexible interconnection switch of medium-voltage feeders based on cascaded reactive power compensation are described.By combining the cascaded static synchronous compensator(STATCOM)with a back-to-back voltage source converter,the cascaded STATCOM has the function of flexible interconnection.Secondly,a control strategy is designed based on the application requirements of reactive power compensation and flexible interconnection devices.The reactive power within the feeder is adjusted through the cascaded STATCOM,and the power flow between feeders is adjusted through the back-to-back voltage source converter.Finally,the effectiveness of the proposed topology and control strategy for the flexible interconnection switch of medium-voltage feeders based on cascaded reactive power compensation is verified through the simulation and experiment.关键词
中压配电网/无功补偿/柔性互联开关/链式静止同步补偿器/背靠背/功率潮流Key words
medium-voltage distribution network/reactive power compensation/flexible interconnection switch/cascaded static synchronous compensator(STATCOM)/back-to-back/power flow引用本文复制引用
彭能,彭珉轩,李琼林,代双寅,孙建军,查晓明..基于链式无功补偿的中压馈线柔性互联开关[J].电力系统自动化,2025,49(6):165-175,11.基金项目
国家重点研发计划资助项目(2023YFB2407500). This work is supported by National Key R&D Program of China(No.2023YFB2407500). （2023YFB2407500）
