考虑用户参与度的电动汽车能效电厂模型

为充分挖掘电动汽车集群的响应能力,探究补偿电价对用户参与度的影响,建立了考虑用户参与度的电动汽车能效电厂模型,该模型能够为能效电厂参与电力市场交易机制提供模型基础。构建了可综合考虑有功和无功响应能力的单体电动汽车的车网互动(V2G)模型;进而对电动汽车交通行为特性进行统计分析,根据不同类型电动汽车的响应特性,提出了考虑补偿电价的电动汽车用户参与度响应模型;在此基础上建立了考虑用户参与度的电动汽车能效电厂模型,定义了能效电厂有功和无功响应能力、储能能力、价格响应的成本函数,为能效电厂参与市场环境下电网的调度控制提供关键的模型参数。利用典型算例验证了考虑用户参与度的电动汽车能效电厂模型的有效性,仿真结果表明能效电厂的响应及储能能力具有时间分布特性,而能效电厂的价格响应特性受补偿电价的影响。

Model of E-EPP considering participation factor of EV users

In order to evaluate the response capability of EVA(Electric Vehicle Aggregator) and investigate the influence of the compensation price on the participation factor of EV(Electric Vehicle) users, the model of E-EPP(Efficient Power Plant model of EVs) considering the participation of EV users is established to provide the basis for E-EPP to participate in the electricity market. The V2G(Vehicle-to-Grid) model of individual EV considering the response capacity of both active and reactive power is established, the travelling behaviors of EVs are statistically analyzed, and the response model for the participation of EV users is proposed considering the compensation price according to the response capacities of different type of EVs. On this basis, the model of E-EPP considering the participation of EV users is built, and the response capacities of active and reactive power, the energy storage capacity and the cost function for price response of the E-EPP are defined, which provides key parameters for E-EPP to realize power dispatch in the electricity market. The typical case validates the effectiveness of the proposed E-EPP model. The simulative results show that the response capacity and the energy storage capacity of E-EPP have the characteristic of temporal distribution, and the price response of E-EPP is closely related with the compensation price.