A day-ahead energy management and reserve declaration strategy for parking lot based on electric vehicle accessing guidance

Abstract

Electric vehicle (EV) could realize the role transformation between mobile load and energy storage by adjusting charging and discharging status, which is a promising reserve resource for power grid to cope with the power fluctuation problem. However, due to the quantity limit of charging equipment, the reserve capacity of EVs will be undermined as their accessing process become stunted. To this end, an accessing guidance model is established to alleviate the congestion of parking lot (PL), and a day-ahead energy management and reserve declaration strategy for PL operator is formulated with the goal of daily operation profit maximization. In this paper, the conception of electricity fluctuation feasible region is suggested to achieve the reliable evaluation of reserve declaration capacity. And the EV guidance feasibility between different PLs, as well as the asynchronous problem of EV appointment interval and reserve market time scale is also considered. Simulation verification is carried out to examine the effectiveness of our proposed model, where the results show that the congestion of PLs is effectively relieved after the guidance model is introduced, and the reserve declaration capacity, as well as the operation profit of PLs is enhanced accordingly.