为了提高纯电动汽车的续航里程,采用光伏电池对纯电动汽车动力蓄电池进行辅助充电.为达到比较好的充电效果,使用最优梯度法进行最大功率点跟踪,应用电压电流双闭环电路提高功率因数,并采用正负脉冲充电技术提高蓄电池的充电速度和使用寿命.%In order to improve the range of pure electric vehicles,photovoltaic cells are used to charge the power batteries of pure electric vehicles.Aiming at achieving a good result for charging,it uses the optimal gradient method for maximum power point tracking,applies double closed loop circuit of voltage and current to improve power factor,takes the positive and negative pulse charging technology to improve the battery charging rate and service life.
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