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Modeling of electric vehicle loads applicable to power system quasi-steady state analysis

机译:适用于电力系统准稳态分析的电动汽车负载建模

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Electric vehicles (EVs) are new power loads of power systems. It is important to model the charging process of EVs in power system numerical simulation. This paper proposes a methodology for modeling of EV loads applicable to power flow calculation and other quasi-steady state analysis. The numerical methodology of EV load modeling is expounded from the DC and the AC side of charging EVs. In the DC side, the constant current and the constant voltage charging processes are considered. In the AC side, the changes of the charging efficiency and power factor versus the AC frequency and voltage are analyzed. Based on the current EV market status and the development trends, four types of EV load models are calculated using this methodology. The EV load modeling methodology considers EV quantities, initial state-of-charge distributions, load change processes during charging and the effect of grid side parameters.
机译:电动汽车(EV)是电力系统的新动力负载。在电力系统数值模拟中,对电动汽车的充电过程进行建模非常重要。本文提出了一种用于电动汽车负载建模的方法,适用于潮流计算和其他准稳态分析。从充电电动汽车的直流侧和交流侧阐述了电动汽车负载建模的数值方法。在直流侧,考虑恒流和恒压充电过程。在交流侧,分析了充电效率和功率因数随交流频率和电压的变化。根据当前的电动汽车市场现状和发展趋势,使用这种方法计算出四种类型的电动汽车负荷模型。 EV负载建模方法论考虑了EV数量,初始充电状态分布,充电过程中的负载变化过程以及电网侧参数的影响。

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