In this article, a modified single‐phase current injection based load flow method for the distribution network with different load models of electric vehicle (EV) is proposed. The equations related to injected currents are non‐linear and are represented in rectangular co‐ordinates. The PQ and PV bus representations in load flow formulation are modified for the three different load models of EV including polynomial or ZIP load model (EV LM‐I), voltage dependent load model (EV LM‐II) and constant current load model (EV LM‐III). In addition, a stochastic modelling of EV load and selection of candidate locations for DGs integration are also presented. The effect of the proposed EV load models in terms of real power loss index (ILP), reactive power loss index (ILQ), voltage profile index (IV D) and the MVA capacity index (IC) has been studied on IEEE 38‐bus distribution system. Based on the values of ILP, ILQ, IV D and IC, best load model for EVs from among the load models EV LM‐I, EV LM‐II and EV LM‐III is finally obtained.

中文翻译：

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配电系统电动汽车不同负荷模型下改进的电流注入潮流方法

本文提出了一种针对电动汽车（EV）不同负荷模型的配电网单相电流注入修正潮流方法。与注入电流有关的方程是非线性的，并以矩形坐标表示。针对三种不同的电动汽车负载模型（包括多项式或ZIP负载模型（EV LM ‐ I），与电压有关的负载模型（EV LM ‐ II）和恒定电流负载模型（EV），修改了流量公式中的PQ和PV总线表示形式LM ‐ III）。此外，还介绍了电动汽车负载的随机建模和用于DG集成的候选位置的选择。在IEEE 38总线上研究了建议的EV负载模型对有功功率损耗指数（ILP），无功功率损耗指数（ILQ），电压分布指数（IV D）和MVA容量指数（IC）的影响分发系统。基于所述值ILP，ILQ，IV d和IC，对电动汽车的最佳负载模型从负载模型中EV LM -我，EV LM - II和EV LM - III 最终获得。