基于电价响应的电动汽车充放电策略研究

Ｒesearch on Charging and Discharging Strategy of Electric Vehicle Based on Price Ｒesponse

摘要:

电动汽车用户参与电网互动是以获利为出发点，但影响用户经济收益的因素是多方面的，包括电池充放电成 本、实时电价以及充放电策略等。从用户的角度出发，在实时电价下，构建了电动汽车充放电的成本模型和收益模型; 运用 Matlab 进行求解，分析了电动汽车可盈利的充电时间段和放电时间段。计算结果表明，合理的充放电策略能为 用户带来经济收益，且电动汽车的盈利充电时间段为电网负荷低谷期，放电时间段为负荷高峰期，这与电网削峰填谷 策略要求一致。

Abstract:

Electric vehicle users to participate in the interaction of the grid is based on the benefits，but there are many factors that influence the economic benefits of users，including battery charge and discharge cost，real － time electricity price and charging and discharging strategy etc． From the user's point of view，the cost and profit models for charging and discharging of electric vehicles are constructed under the real － time electricity price． And the profitable charging time and discharging time of electric vehicles has been analyzed using Matlab． Calculation results show that，the reasonable charging and discharging strategy can bring economic benefits to users，and the profitability of electric vehicle charging time is the trough of load，while the discharging time is the peak of load，which is consistent with the requirements of power grid peak clipping strategy．