1.State Key Laboratory of Electrical Insulation and Power Equipment (Xi’an Jiaotong University), Xi’an 710049, China;2.School of Electrical Engineering, Sichuan University, Chengdu 610065, China;3.Wuxi Power Supply Company of State Grid Jiangsu Electric Power Co., Ltd., Wuxi 214061, China

In recent years, extreme natural disasters represented by typhoons have led to frequent power outages in urban distribution networks, which has brought challenges to the sustainable power supply of urban power grids. Under the background of the rapid growth of the number of electric vehicle (EV) user groups, aiming at the above problems, a vehicle-to-grid (V2G) based resilience promotion strategy for the urban distribution network is proposed to enhance the ability of urban power grid to deal with typhoon disasters. Firstly, the failure rate model of the distribution network component is established, and the distribution network failure scenarios under typhoon disasters are generated by random sampling. Secondly, considering the impact of the upcoming typhoon disaster on the road congestion and users’ travel intention, an EV scheduling model in the early stage of the disaster is established. Then, based on the theory of consumer psychology, the post-disaster incentive response mechanism for the reverse power transmission is formulated to guide EVs in the V2G station to participate in the power supply restoration. Finally, considering the reconfiguration of the distribution network and the reverse charging of V2G stations, the post-disaster power supply restoration strategy with the participation of V2G is formulated. The example analysis shows that, compared with the mobile emergency generator (MEG), the scheme of V2G participating in the power supply restoration has a better economy and restoration effect, which verifies the feasibility and effectiveness of the proposed resilience promotion strategy.

This work is supported by National Natural Science Foundation of China (No. 51637008).