电瓷避雷器Issue(4)：72-80,9.DOI:10.16188/j.isa.1003-8337.2025.04.010
基于磁感应电流换向模块的机械式断路器的限流功能研究
Current Limiting Function of Mechanical Circuit Breaker Based on Magnetic Induction Current Reversing Module
摘要
Abstract
DC circuit breaker is an indispensable and crucial component in DC power transmission tech-nology,playing a vital role in ensuring the stable operation of the DC transmission system.In this regard,active current injection circuit breakers based on the magnetic induction current commutation module have attracted significant attention due to their advantages of low cost,small size,and high reliability in cur-rent interruption.The author aims to meet the requirements of 500 kV DC power transmission by impro-ving the topology of the existing active current injection circuit breaker based on the magnetic induction current commutation module to incorporate a current-limiting function.The working principle is elabora-ted in detail,and its feasibility is demonstrated through parameter design and PSCAD simulation verifica-tion.Research results show that compared to the original design,this novel approach more effectively suppresses the rise rate of short-circuit current and mitigates on-state losses,thereby reducing the fault current energy absorbed by surge arresters and enhancing their repeatability.Additionally,the proposed solution significantly reduces the overall system cost.Therefore,this improvement plan is of great signifi-cance in enhancing the stability and reducing operating costs of DC power transmission systems.关键词
有源电流注入断路器/磁感应电流换向模块/限流功能/仿真验证Key words
active current injection circuit breaker/magnetic induction current reversing module/current limiting function/simulation verification引用本文复制引用
田浩,章宝歌,吕雄,任勇全,崔福红..基于磁感应电流换向模块的机械式断路器的限流功能研究[J].电瓷避雷器,2025,(4):72-80,9.基金项目
甘肃省自然科学基金(编号:23JRRA872).Project supported by Natural Science Foundation of Gansu Province(No.23JRRA872). （编号:23JRRA872）
