Parallel Control Method Based on the Consensus Algorithm for the Non-Isolated AC/DC Charging Module
A high-power charging station for electric vehicles usually adopts a parallel structure of multiple power modules. However, due to the parameter differences among power modules, a parallel system always has circulating current issues. This paper takes a non-isolated AC/DC charging module as the rese...
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doaj-8949c10c95cc4766b38e16f8f113ef7a2020-11-25T00:50:08ZengMDPI AGEnergies1996-10732018-10-011110282810.3390/en11102828en11102828Parallel Control Method Based on the Consensus Algorithm for the Non-Isolated AC/DC Charging ModuleYixin Zhu0Tao Wang1Liansong Xiong2Gaofeng Zhang3Xin Qian4School of Internet of Things Engineering, Jiangnan University, Wuxi 214122, ChinaSchool of Internet of Things Engineering, Jiangnan University, Wuxi 214122, ChinaSchool of Automation, Nanjing Institute of Technology, Nanjing 211167, ChinaSchool of Internet of Things Engineering, Jiangnan University, Wuxi 214122, ChinaSchool of Internet of Things Engineering, Jiangnan University, Wuxi 214122, ChinaA high-power charging station for electric vehicles usually adopts a parallel structure of multiple power modules. However, due to the parameter differences among power modules, a parallel system always has circulating current issues. This paper takes a non-isolated AC/DC charging module as the research object and proposes a current sharing control strategy for multiple power modules based on the consensus algorithm. By constructing a sparse communication network with the CAN (Controller Area Network) protocol and exchanging current information, accurate current sharing among power modules is realized. Firstly, the zero-sequence circulating current issue is analyzed through a parallel model of the three-phase rectifier, with an improved circulating current restraint strategy proposed based on the zero-sequence voltage compensation. Then, the principle of the consensus algorithm is explained, which is applied to the current sharing control of multiple power modules. Finally, the proposal is tested by the designed simulation and experimental cases. From the obtained results, it can be seen that the proposed control strategy can effectively realize accurate current sharing among multiple power modules and well restrain the zero-sequence circulating current at the input side.http://www.mdpi.com/1996-1073/11/10/2828three phase rectifierparallel connectionzero sequence currentcurrent sharingconsistency algorithm |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yixin Zhu Tao Wang Liansong Xiong Gaofeng Zhang Xin Qian |
spellingShingle |
Yixin Zhu Tao Wang Liansong Xiong Gaofeng Zhang Xin Qian Parallel Control Method Based on the Consensus Algorithm for the Non-Isolated AC/DC Charging Module Energies three phase rectifier parallel connection zero sequence current current sharing consistency algorithm |
author_facet |
Yixin Zhu Tao Wang Liansong Xiong Gaofeng Zhang Xin Qian |
author_sort |
Yixin Zhu |
title |
Parallel Control Method Based on the Consensus Algorithm for the Non-Isolated AC/DC Charging Module |
title_short |
Parallel Control Method Based on the Consensus Algorithm for the Non-Isolated AC/DC Charging Module |
title_full |
Parallel Control Method Based on the Consensus Algorithm for the Non-Isolated AC/DC Charging Module |
title_fullStr |
Parallel Control Method Based on the Consensus Algorithm for the Non-Isolated AC/DC Charging Module |
title_full_unstemmed |
Parallel Control Method Based on the Consensus Algorithm for the Non-Isolated AC/DC Charging Module |
title_sort |
parallel control method based on the consensus algorithm for the non-isolated ac/dc charging module |
publisher |
MDPI AG |
series |
Energies |
issn |
1996-1073 |
publishDate |
2018-10-01 |
description |
A high-power charging station for electric vehicles usually adopts a parallel structure of multiple power modules. However, due to the parameter differences among power modules, a parallel system always has circulating current issues. This paper takes a non-isolated AC/DC charging module as the research object and proposes a current sharing control strategy for multiple power modules based on the consensus algorithm. By constructing a sparse communication network with the CAN (Controller Area Network) protocol and exchanging current information, accurate current sharing among power modules is realized. Firstly, the zero-sequence circulating current issue is analyzed through a parallel model of the three-phase rectifier, with an improved circulating current restraint strategy proposed based on the zero-sequence voltage compensation. Then, the principle of the consensus algorithm is explained, which is applied to the current sharing control of multiple power modules. Finally, the proposal is tested by the designed simulation and experimental cases. From the obtained results, it can be seen that the proposed control strategy can effectively realize accurate current sharing among multiple power modules and well restrain the zero-sequence circulating current at the input side. |
topic |
three phase rectifier parallel connection zero sequence current current sharing consistency algorithm |
url |
http://www.mdpi.com/1996-1073/11/10/2828 |
work_keys_str_mv |
AT yixinzhu parallelcontrolmethodbasedontheconsensusalgorithmforthenonisolatedacdcchargingmodule AT taowang parallelcontrolmethodbasedontheconsensusalgorithmforthenonisolatedacdcchargingmodule AT liansongxiong parallelcontrolmethodbasedontheconsensusalgorithmforthenonisolatedacdcchargingmodule AT gaofengzhang parallelcontrolmethodbasedontheconsensusalgorithmforthenonisolatedacdcchargingmodule AT xinqian parallelcontrolmethodbasedontheconsensusalgorithmforthenonisolatedacdcchargingmodule |
_version_ |
1725249242020184064 |