Unified Harmonics Based Method to Reduce Reactive Power of the Dual Active Bridge Converter

Shi, HC;Wen, HQ;Chen, J;Hu, YH

[Shi, Haochen; Wen, Huiqing; Chen, Jie] Xian Jiaotong Liverpool Univ XJTLU, Dept Elect & Elect Engn, Suzhou, Jiangsu, Peoples R China.
[Hu, Yihua] Univ Liverpool, Dept Elect & Elect Engn, Liverpool L69 3GJ, Merseyside, England.

2016 IEEE INTERNATIONAL CONFERENCE ON RENEWABLE ENERGY RESEARCH AND APPLICATIONS (ICRERA)

Pages:690-695

DOI:10.1109/ICRERA.2016.7884422

Publication Year:2016

Document Type:Conference Paper

Identifier:http://hdl.handle.net/20.500.12791/004670

Abstract

In order to improve the efficiency of the dual active bridge (DAB) converter for a wide operating range, a novel unified-harmonics analysis based control strategy under 3-level modulated phase-shift framework is proposed. The mathematic model of the transmission power of the DAB converter is derived and the zero-voltage-switch soft-switching region is presented. Compared with piecewise time domain model, the expressions are simplified and easy online implementation. Then, a reactive-power-minimization method and its control implementation are presented. Both of the simulation and experiment results verify the feasibility of the proposed control method.

Keywords

dual active bridge converter reactive power closed-loop control Closed-loop control Dual active bridge converter Reactive power

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