标题：Modular Multilevel Converter Based Bus Bar in Flexible Substation
作者：Chai, Zhe; Wang, Guangzhu; Ou, Zhujian; Liu, Danqing; Huang, Zhisong
作者机构：[Chai, Zhe; Wang, Guangzhu; Ou, Zhujian; Liu, Danqing; Huang, Zhisong] Shandong Univ, Sch Elect Engn, Jinan, Shandong, Peoples R China.
会议名称：IEEE Asia-Pacific Transportation Electrification Conference and Expo (ITEC Asia-Pacific)
会议日期：AUG 07-10, 2017
来源：2017 IEEE TRANSPORTATION ELECTRIFICATION CONFERENCE AND EXPO, ASIA-PACIFIC (ITEC ASIA-PACIFIC)
关键词：bus bar; Modular Multilevel Converter (MMC); flexible substation; DC; access
摘要：This paper proposes a new Modular Multilevel Converter (MMC) based bus bar. Compared with the traditional bus bar, it can not only realize power control and reactive power compensation, but also prevent voltage drop and allow DC access, so it is very suitable for future flexible substation application. The structure which is composed of two back to back MMC is given. The power analysis and double closed-loop control method are proposed. Compared with other control methods, it adopts the arm current direct control which can remove the need for a circulating current suppressing controller. Simulation results verify the feasibility and correctness of the MMC based bus bar.