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.
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页数：6
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