A Non-Isolated Bidirectional Three-Phase Unfolder for Energy Storage Systems

被引：0

作者：

Bit, Sudeshna ^{[1
]}

Nag, Soumya Shubhra ^{[1
]}

机构：

[1] Indian Inst Technol Delhi, Dept Elect Engn, New Delhi, India

来源：

2022 IEEE INTERNATIONAL CONFERENCE ON POWER ELECTRONICS, DRIVES AND ENERGY SYSTEMS, PEDES | 2022年

关键词：

DC-AC converters; AC-DC converters; three-phase unfolder; voltage balancer; energy storage systems; CONVERTER;

D O I：

10.1109/PEDES56012.2022.10080226

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper proposes a bi-directional DC-AC converter for grid-integration of Energy Storage Systems (ESS). The converter has the advantages of line frequency switching for the inverter stage leading to lower switching losses, reduced requirement of DC-link capacitance as well as reduced grid-side filter size. The non-isolated topology ensures improved power density over isolated versions available in literature. The control strategy as well as simulation results for bidirectional power flow in a 5 kW rated system has been discussed in the paper. A 2.5 kW rated laboratory prototype has been made to validate the converter operation and control. Preliminary open loop hardware results with resistive load have been presented.

引用

页数：6

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