An Alterable Structure Power Router with General AC and DC Port for Microgrid Applications
1
Key Laboratory of Control of Power Transmission and Conversion (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200240, China
2
Department of Electrical Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
3
State Grid Henan Electric Power Research Institute, Zhengzhou 450002, China
4
State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400030, China
5
Department of Electrical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
*
Author to whom correspondence should be addressed.
Energies 2019, 12(9), 1815; https://doi.org/10.3390/en12091815
Received: 2 April 2019 / Revised: 2 May 2019 / Accepted: 10 May 2019 / Published: 13 May 2019
(This article belongs to the Section Smart Grids and Microgrids)
This paper proposes an alterable structure power router (PR) topology which shares the ability of general Alternating Current (AC) and Direct Current (DC) port. This alterable structure PR aims to better implement the interconnections among micro-grids, renewable energy, and traditional grids. The PR’s converter structure is alterable according to the system power. Based on the operation analysis of the PR, the mathematic model of the power router is established and the relationship between switch states and port voltage is analyzed. According to the PR mathematical model, the control method is designed to realize current control in both AC and DC mode. With the proposed power router topology, the PR’s port can be used in both AC and DC situations, which saves the cost of traditional PRs and increases economic efficiency. The simulation and experimental results prove the good steady-state and dynamic performance of the proposed power router topology.
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Keywords:
microgrid; renewable energy; alterable structure power router; general AC and DC port; plug-and-play; bidirectional power flow
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MDPI and ACS Style
Yao, G.; Zhang, T.; Zhou, L.; Li, Q.; Jin, N. An Alterable Structure Power Router with General AC and DC Port for Microgrid Applications. Energies 2019, 12, 1815. https://doi.org/10.3390/en12091815
AMA Style
Yao G, Zhang T, Zhou L, Li Q, Jin N. An Alterable Structure Power Router with General AC and DC Port for Microgrid Applications. Energies. 2019; 12(9):1815. https://doi.org/10.3390/en12091815
Chicago/Turabian StyleYao, Gang; Zhang, Tao; Zhou, Lidan; Li, Qiang; Jin, Nan. 2019. "An Alterable Structure Power Router with General AC and DC Port for Microgrid Applications" Energies 12, no. 9: 1815. https://doi.org/10.3390/en12091815
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