NDLI: Reliable transformerless battery energy storage systems based on cascade dual-boost/buck converters

Content Provider	IET Digital Library
Author	Liu, Chuang Kan, Jiankun Zhi, Yuemei Li, Wei Sun, Jiajun Cai, Guowei Wang, Jianyuan
Abstract	In this study, the cascade dual-boost/buck half-bridge and full-bridge bidirectional ac–dc converters are proposed for grid-tie transformerless battery energy storage systems (BESSs). The proposed converter contains the advantages of the traditional cascade H-bridge (CHB) converter. However, compared with CHB converter, there is no shoot-through issue in the proposed converter, which is more reliable for BESS. In addition, a unified control scheme is proposed for active-power control and individual state-of-charge-balancing control of BESS, which is very modular and easy to implement. At the end, a laboratory BESS is constructed and tested combining a cascade two-unit dual-boost/buck half-bridge converter with nine lead–acid series-connected battery units. Experimental results obtained from the laboratory system verified the feasibility and effectiveness of the proposed BESS and unified control scheme.
Starting Page	1681
Ending Page	1689
Page Count	9
ISSN	17554535
Volume Number	8
e-ISSN	17554543
Issue Number	Issue 9, Sep (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/8/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2014.0428
Journal	IET Power Electronics
Publisher Date	2015-04-28
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC-DC Power Converter Active-power Control Battery Storage Plants BESSs Cascade Dual-boost-buck Converter Cascade H-bridge Converter Cascade Two-unit Dual-boost-buck Half-bridge Converter CHB Converter Control of Electric Power System Full-bridge Bidirectional AC-DC Converter Grid-tie Transformerless Battery Energy Storage System Lead-acid Series-connected Battery Units Other Power Stations And Plant Power And Energy Control Power Control Power Generation Control Power Grid Reliable Transformerless Battery Energy Storage System Secondary Cell State-of-charge-balancing Control Unified Control Scheme
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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