面向风光储直流微网系统的多端口变换器设计

doi:10.16182/j.issn1004731x.joss.17-0321

系统仿真学报 ›› 2019, Vol. 31 ›› Issue (9): 1916-1924.doi: 10.16182/j.issn1004731x.joss.17-0321

面向风光储直流微网系统的多端口变换器设计

刘慧, 潘庭龙^*

江南大学电气自动化研究所,江苏无锡 214122

收稿日期:2017-07-04 修回日期:2017-09-29 发布日期:2019-12-12
通讯作者: 潘庭龙(1976-),男,江苏建湖,博士,教授,研究方向为新能源发电控制技术。
作者简介:刘慧(1992-),女,吉林延边,硕士生,研究方向为新能源发电及节能技术
基金资助:
国家自然科学基金(61672266)

Design of Multi -port Converter for DC Micro-grid System with Wind-Photovoltaic Storage

Liu Hui, Pan Tinglong^*

Institute of Electrical Automation, Jiangnan University, Wuxi 214122, China

Received:2017-07-04 Revised:2017-09-29 Published:2019-12-12

摘要/Abstract

摘要： 为解决直流微网系统中分布式能源、负载、储能的协调控制问题,高效利用新能源,提出了一种适用于直流微网混合储能的多端口变换器。根据多端口输入变换器的合成法则,通过将Buck-Boost变换器、双向Buck-Boost变换器嵌入罗氏变换器的自举电路中,生成可用于风光储互补的直流变换器拓扑,实现了能量的双向传递。对电路的各种工作状态进行分析,说明了变换器各端口可以独立、协同工作。运用Matlab软件对变换器的不同工作状态进行仿真分析,验证了本文提出的多端口变换器的可行性。

关键词: 直流微网, 多端口变换器, 罗氏变换器, Buck-Boost变换器, 电路拓扑

Abstract: In order to coordinate energy, load and storage in DC micro-grid system and make efficient utilization of new energy, a multi-port converter for DC micro-grid hybrid energy storage is proposed. According to the composition rule of multi-port converter, by inserting the Buck-boost converter and bidirectional Buck-boost converter into the bootstrap converter of Luo-converter, the DC converter topology which can be used for complementation of wind-photovoltaic storage is produced. Two-way transmission of energy is realized. The analysis of all kinds of working conditions shows that each port of the converter is able to work independently and cooperatively. Different work conditions have been simulated in Matlab to validate the feasibility.

Key words: dc micro-grid, multi-port converter, luo-converter, buck-boost converter, circuit topology

中图分类号:

TM46

刘慧, 潘庭龙. 面向风光储直流微网系统的多端口变换器设计[J]. 系统仿真学报, 2019, 31(9): 1916-1924.

Liu Hui, Pan Tinglong. Design of Multi -port Converter for DC Micro-grid System with Wind-Photovoltaic Storage[J]. Journal of System Simulation, 2019, 31(9): 1916-1924.

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面向风光储直流微网系统的多端口变换器设计

Design of Multi -port Converter for DC Micro-grid System with Wind-Photovoltaic Storage

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