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

被引：13

作者：

Liu, Chuang ^{[1
]}

Kan, Jiankun ^{[1
]}

Zhi, Yuemei ^{[1
]}

Li, Wei ^{[1
]}

Sun, Jiajun ^{[1
]}

Cai, Guowei ^{[1
]}

Wang, Jianyuan ^{[1
]}

机构：

[1] Northeast Dianli Univ, Sch Elect Engn, Jilin 132012, Peoples R China

来源：

IET POWER ELECTRONICS | 2015年 / 8卷 / 09期

基金：

中国国家自然科学基金;

关键词：

OF-CHARGE DETERMINATION; SWITCHING FREQUENCY; PWM CONVERTER; VOLTAGE; INVERTERS; COMPENSATION; AC/DC;

D O I：

10.1049/iet-pel.2014.0428

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：1681 / 1689

页数：9

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