Abstract: With the massive access of renewable energy sources and pluralistic load，it is bi-directional

beneficial to update the distribution network topology. It can not only promote the consumption of renewable

energy and the satisfaction of new load demands，but also improve the rationality of urban distribution network

planning results. As consequence，a multi-stage distribution network expansion planning method considering

photovoltaic and electric vehicles was proposed. Firstly，a basic mathematical model of photovoltaic station and

electric vehicle charging stations was established. Then，a multi-stage multi-load-level joint planning model was

investigated to minimize the present value of total cost of expansion，the photovoltaic consumption capacity of the

network and the random charging demands of electric vehicles were considered in the process. Finally，to carry out

this analysis，taking the 24-node distribution network for simulation，the results show that the joint planning

considering photovoltaic and electric vehicles will affect the overall structure and power flow distribution of the

distribution network，the cooperative planning of photovoltaic and electric vehicles can reduce the total expansion

planning cost to a certain degree.

      Key words: distribution network；multi-stage expansion planning；photovoltaic（PV）；electric vehicles（EV）