Abstract:The harmonic pollution of electric vehicle charging station is mainly caused by the uncontrolled former level or phase-controlled rectification circuit of chargers. Aiming at the three-phase uncontrolled rectified charger adopting passive power factor correction, the operating principle of charging current in continuous and discontinuous modes was analyzed in this paper. According to the voltage and current balance equations in the process of charging, the frequency-domain harmonically coupled admittance matrices of chargers were derived. And the harmonic admittance matrix parameters under different modes were acquiredvia the charging equivalent circuit. Therefore, the frequency-domain harmonic model of electric vehicle chargers was established. This model transformed the time-domain nonlinear characteristics into frequency-domain linear admittance matrices, to feature the coupling relationship between the terminal current and voltage harmonic in each order. Finally, the simulation and experiment analysis verified the proposed model.
周念成, 王佳佳, 王强钢, 魏能峤. 电动汽车三相不控整流充电机频域谐波模型[J]. 电工技术学报, 2016, 31(8): 156-162.
Zhou Niancheng, Wang Jiajia, Wang Qianggang, Wei Nengqiao. Frequency Domain Harmonic Model of Electric Vehicle Charger Using Three Phase Uncontrolled Rectifier. Transactions of China Electrotechnical Society, 2016, 31(8): 156-162.
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