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Keywords

distribution network; photovoltaic; electric vehicle; coordination control; voltage stabilization; generalized Benders decomposition algorithm

Abstract

The integration of photovoltaic (PV) and electric vehicle (EV) charging stations into the distribution network affects the stable operation of the distribution network, but the respective flexible scheduling characteristics of PV and EV charging stations enhance the flexibility of the distribution network. Therefore, a distributed resource coordination control strategy (DRCCS) for the distribution network is proposed, which considers the efficiency of PV utilization and the limitation of the number of EV charging facilities. On the PV side, the V-Q droop control slope of each PV inverter in the distribution network is coordinated, and optimal output control of PV is achieved by considering the PV control capability in the distribution network. On the EV charging side, the number of charging facilities in actual charging stations is considered to achieve orderly charging of EVs. The flexibility of charging is utilized to provide auxiliary support for the distribution network while ensuring charging needs. The coordination control model considering the efficiency of PV utilization and the limitation of the number of EV charging facilities is comprehensively constructed, so as to ensure stable distribution network voltage, improve the active output of PV inverters, and satisfy the charging demand of EVs. The mixed integer nonlinear problem constructed in this paper is solved by the generalized Benders decomposition (GBD) algorithm, and its effectiveness is verified through simulation.

DOI

10.19781/j.issn.1673-9140.2024.06.013

First Page

121

Last Page

130

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