The Coordination Control of SMES and PV in LVDC Distribution System

This paper presents a coordination scheme of superconducting magnetic energy storage (SMES) and photovoltaic (PV) generation system for regulating the DC bus voltage in the low voltage direct current (LVDC) distribution systems. Firstly, the effect of AC grid faults on LVDC distribution system is an...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2021-11, Vol.31 (8), p.1-5
Main Authors: Zhou, Kai, Xu, Zhong, Guo, Qianwen, Luan, Le, Hu, Wenxi
Format: Article
Language:English
Subjects:
Coordination
Data buses
DC power systems
Direct current
Discharges (electric)
Energy storage
Low voltage
Magnetic energy storage
Photovoltaic cells
Pulse width modulation
Residual energy
SMES
Superconducting magnetic energy storage
Switches
Transient analysis
Voltage control
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Summary:This paper presents a coordination scheme of superconducting magnetic energy storage (SMES) and photovoltaic (PV) generation system for regulating the DC bus voltage in the low voltage direct current (LVDC) distribution systems. Firstly, the effect of AC grid faults on LVDC distribution system is analyzed. Then, the PV is designed to operate as the backup power of SMES by adjusting the control mode automatically according to the residual energy of SMES. The proposed scheme can regulate DC bus voltage in milliseconds and maintain the bus voltage during the whole fault process by taking use of both SMES and PV. A LVDC distribution system is modelled in PSCAD/EMTDC. Simulation results have demonstrated the feasibility and effectiveness of the proposed scheme.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2021.3103723