Energy Storage Science and Technology ›› 2022, Vol. 11 ›› Issue (5): 1502-1511.doi: 10.19799/j.cnki.2095-4239.2021.0481

• Energy Storage System and Engineering • Previous Articles     Next Articles

Joint planning and operation optimization of photovoltaic-storage- charging integrated station containing electric vehicles

Yan ZHANG1(), Wei HAN2(), Chuang SONG2, Shuangyi YANG1   

  1. 1.School of Mechanical and Electrical Engineering, Zhengzhou University of Industrial Technology, Zhengzhou 451100, Henan, China
    2.State Grid Henan Electric Power Research Institute, Zhengzhou 450000, Henan, China
  • Received:2021-09-14 Revised:2021-10-01 Online:2022-05-05 Published:2022-05-07
  • Contact: Wei HAN E-mail:zhangyanep@163.com;hanwei@sgcc.com

Abstract:

The traditional charging station has the problems of having a very great impact on the electrical power grid, low land utilization rate, and high construction cost. In view of the referred engineering problems, a joint optimization model of economic planning and operation of the facility configuration of a Photovoltaic-Storage-Charging integrated station is proposed. The model takes the optimal economic benefit of the integrated power station, including investment cost, maintenance cost, operation cost, and charging penalty cost, as the objective function. And it comprehensively considers the constraints, including intermittent photovoltaic power (PV) generation, energy storage stations, and energy interaction with the distribution network, and describes the charging behavior of electric vehicles based on M/G/N/K queuing theory. From the perspective of planning, make configuration decisions on photovoltaic capacity, energy storage capacity, the number of charging piles, and the number of waiting spaces. Then, from an operational perspective, make energy dispatching plans for each controlled unit integrated into the distribution network and integrated power station. Finally, the configuration results and the cost composition of integrated power stations under different scenarios, regions, and budgets are compared and analyzed using example simulations, as is the impact of optical storage configuration results and photovoltaic output uncertainty on the total profit. The results show that the economic contribution of optical storage capacity allocation to the integrated power station is greater than the number of charging piles and waiting spaces, and the planning priority should be set in the actual planning. Energy storage shows good flexibility in energy management in the integrated power station, which can improve its operation economy. Moreover, the uncertain performance of different regional environments and photovoltaic output affects the facility configuration results and profits of the integrated power station.

Key words: photovoltaic-storage-charging integrated station, photovoltaic, energy storage, electric vehicles, equipment configuration

CLC Number: