Assessing the effect of bidding strategy of an Electric Vehicle Parking Operator (EVPO) in the day-ahead and real-time markets on the power system reliability

摘要

Besides environmental benefits of using electric vehicles (EVs), the presence of EVs in the parking lots, acting as the power consumer or generator, have created widespread changes in the operation of power systems. The Electric Vehicle Parking Operator (EVPO) can strategically purchase and sell power in both the day-ahead and the real-time markets. Here, the effect of bidding strategy of an EVPO based on risk appetite is considered. A complete probabilistic model of the EVs in the range of parking is used to determine the allowed times of battery charge and discharge processes. The proposed model is applied on a realistic case study, forced to function in island mode, and the cost of energy not supplied is investigated. Results show that a risky strategy in addition to trading more power in the real-time market, not only supplies and guarantees the car owners' SOC requirement for daily trips, but also improves the reliability of the system.