Planning and analysis of the demonstration project of the MVDC distribution network in Zhuhai

查看全文 作　　者：Lu [1]QU;Zhanqing [1]YU;Qiang [1]SONG;Zhichang [1]YUAN;Biao [1]ZHAO;Dawei [1]YAO;Jianfu [2]CHEN;Yao [2]LIU;Rong [1]ZENG

机构地区：[1]State Key Lab of Power Systems,Department of Electrical Engineering,Tsinghua University,Advanced DC Power Center,Energy Internet Institute,Tsinghua University,Beijing 100084,China;[2]Zhuhai Power Supply Bureau,Zhuhai 519000,China

出　　处：《Frontiers in Energy》索引2019年第13卷第1期,共11页

摘　　要：The DC distribution system is an important development direction of the distribution system,which can improve the reliability and the quality of the power supply,and support the new energy,the energy storage,the electric vehicles,and the flexible access of AC and DC loads to grid.To realize the demonstration application of the DC distribution technology,China's first demonstration project of the medium voltage DC distribution network will be built in Zhuhai,Guangdong Province to support the construction of the city energy internet.First,this paper analyzes the demand of the DC distribution network project,and puts forward the construction content and construction target.Then,it designs and analyzes the electrical connection mode,system operation mode,and startup and shutdown mode of the DC distribution network,and proposes the overall project construction plan.Finally,it conducts the specific project design and analysis,which mainly in elude the selection of equipment such as inverters,DC transformers and DC circuit breakers,the design and analysis of the DC control and protection system,the design and analysis of the overvoltage protection and the configuration scheme of the lightning arrester,and analysis of the system transient characteristics.The design and analysis of the engineering program is a combination of China's distribution network engineering practice and technical characteristics,which lays a solid foundation for the advancement of the DC power distribution technology in China,and has reference value and demonstration effect for the design and construction of other projects. 关键词：MVDC distribution network DC solid state transformer DC circuit BREAKER MODULAR MULTILEVEL CONVERTER

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Planning and analysis of the demonstration project of the MVDC distribution network in Zhuhai

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