A Multiple-Port Three-Level DC/DC Converter for HESS with Power Sharing in DC Microgrids
A Multiple-Port Three-Level DC/DC Converter for HESS with Power Sharing in DC Microgrids作者机构：State Grid Liaoning Marketing Service Center Sun Yat-sen University
出 版 物：《Chinese Journal of Electronics》 (电子学报(英文))
年 卷 期：2021年第30卷第3期
页 面：570-583页
核心收录：
学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 080902[工学-电路与系统] 08[工学] 0701[理学-数学]
主 题：Control of electric power systems Distributed power generation DC-DC power convertors Power convertors and power supplies to apparatus Multiple-port DC/DC converter Three-level hybrid energy storage system Renewable generation DC microgrid
摘 要：In order to reduce the volume, weight and cost of conventional hybrid energy storage system(HESS) while properly exploring the complementary features of different energy storage devices for DC microgrid applications, this paper proposes a multipleport three-level DC/DC converter. It possesses multiple ports sharing one front-end three-level DC/DC converter with an inductor and supercapacitor bank. Different types of batteries and/or multiple battery banks can be interfaced through the multiple terminals. Such a converter structure facilitates the cooperation of different energy storage devices to satisfy various power demands of DC microgrids with intermittent renewable generation plants. Moreover, the proposed structure allows power sharing among different energy storage devices, which enables more efficient cooperation of different battery banks or different types of batteries. Experimental results are presented to verify the efficacy of the proposed converter structure and its control.
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