• Home|About JOPS|Editorial Board| Ethics Statement|Indexed-in|Contact us|Peer Review|Chinese
Latest Papers more>>
XIAO Ziheng,HE Zhixing,CHEN Junling,CHEN Yandong,OUYANG Honglin,LUO An.Phase-plane Analysis and Optimization of Dual Active Bridge Converter[J].JOURNAL OF POWER SUPPLY,2021,19(2):81-92
Phase-plane Analysis and Optimization of Dual Active Bridge Converter
Received:November 25, 2019  Revised:February 06, 2021
View Full Text  View/Add Comment  Download reader
DOI:10.13234/j.issn.2095-2805.2021.2.81
Keywords:dual active bridge (DAB) converter  optimization  closed-form expression
Fund Project:
                 
AuthorInstitutionEmail
XIAO Ziheng Guangdong Zhicheng Champion Group Co., Ltd, Dongguan , China;National Electric Power Conversion and Control Engineering Technology Research Center, Hunan University, Changsha , China
HE Zhixing Guangdong Zhicheng Champion Group Co., Ltd, Dongguan , China;National Electric Power Conversion and Control Engineering Technology Research Center, Hunan University, Changsha , China hezhixingmail@163.com
CHEN Junling Guangdong Zhicheng Champion Group Co., Ltd, Dongguan , China
CHEN Yandong Guangdong Zhicheng Champion Group Co., Ltd, Dongguan , China;National Electric Power Conversion and Control Engineering Technology Research Center, Hunan University, Changsha , China
OUYANG Honglin Guangdong Zhicheng Champion Group Co., Ltd, Dongguan , China;National Electric Power Conversion and Control Engineering Technology Research Center, Hunan University, Changsha , China
LUO An Guangdong Zhicheng Champion Group Co., Ltd, Dongguan , China;National Electric Power Conversion and Control Engineering Technology Research Center, Hunan University, Changsha , China
Hits: 89
Download times: 200
Abstract:
      The optimization of dual active bridge (DAB) converters is widely studied, and numerous modulation sche-mes are proposed. However, the corresponding optimization process encounters two difficulties. The first one is the potential nonconvex feasible region restricted by the constraint condition of power transmission equality, which may result in ineffective of the regular convex optimization methods. The second one is that the expressions of commonly used optimization objectives are so complex that it is difficult to obtain the closed-form expression of control coordinates. To solve these problems, a relative partial derivative gain method is used to avoid the potential nonconvex feasible region. In addition, the closed-form expression of control coordinates under the minimum inductor voltage modulation (MIVM) scheme is obtained based on the phase-plane analysis. The efficiency of the MIVM scheme is comparable to that under the minimum inductor current modulation (MICM) scheme. Moreover, the simple control coordinates can facilitate the di-gital realization of the proposed modulation method. Finally, experimental results verified the validity of the phase-plane analysis and the implementation of the proposed modulation scheme.
Close