直流微型电网保护系统的研究现状与关键技术
唐洪良1,郑军2,杨强2
1 国网浙江杭州市余杭区供电公司,浙江 杭州 311106;
2 浙江大学 电气工程学院,浙江 杭州 310027
摘 要:直流微型电网(微网)的保护技术是确保微网安全可靠运行的重要基础。基于直流微网特点,分析了保护系统设计中的注意事项,阐述了直流微网常见的故障类型,总结了直流微网保护系统的研究现状和关键技术,并对直流微网保护技术的后续研究方向提出了建议。
关键词:直流微型电网;保护系统;故障检测;直流断路器
中图分类号:TM77 文献标识码:A 文章编号:1007-3175(2014)10-0001-06
Present Study Status and Key Technology of Protection System for Direct Current Micro-Grids
TANG Hong-liang1, ZHENG Jun2, YANG Qiang2
1 State Grid Zhejiang Hangzhou Yuhang Power Supply Company, Hangzhou 311106, China;
2 College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
Abstract: Protection technology is an important foundation to ensure safe and reliable operation for direct current micro-grids. Based on direct current (DC) micro-grids features, analysis was made to cautions in protection system design. This paper described DC micro-grids common fault types,summarized study present status and key technology of protection system for DC micro-grids, and raised subsequent study suggestion for DC micro-grids protection technology.
Key words: direct current micro-grid; protection system; fault detection; direct current circuit breaker
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