直流微型電網(wǎng)保護(hù)系統(tǒng)的研究現(xiàn)狀與關(guān)鍵技術(shù)
唐洪良1，鄭軍2，楊強(qiáng)2
1 國網(wǎng)浙江杭州市余杭區(qū)供電公司，浙江 杭州 311106；
2 浙江大學(xué) 電氣工程學(xué)院，浙江 杭州 310027
摘 要：直流微型電網(wǎng)(微網(wǎng))的保護(hù)技術(shù)是確保微網(wǎng)安全可靠運(yùn)行的重要基礎(chǔ)?；谥绷魑⒕W(wǎng)特點(diǎn)，分析了保護(hù)系統(tǒng)設(shè)計(jì)中的注意事項(xiàng)，闡述了直流微網(wǎng)常見的故障類型，總結(jié)了直流微網(wǎng)保護(hù)系統(tǒng)的研究現(xiàn)狀和關(guān)鍵技術(shù)，并對(duì)直流微網(wǎng)保護(hù)技術(shù)的后續(xù)研究方向提出了建議。
關(guān)鍵詞：直流微型電網(wǎng)；保護(hù)系統(tǒng)；故障檢測；直流斷路器
中圖分類號(hào)：TM77 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：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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