为了改善独立光伏发电系统中蓄电池的荷电水平,延长蓄电池的使用寿命.提出利用最大功率跟踪(MPPT)与蓄电池三段式充电相结合的充电控制策略,并基于数字控制方式,设计完成了光伏充电控制器的硬件电路和控制软件,完成了相关实验,验证了设计的有效性和正确性.%To improve the quality of storage battery in the isolated photovoltaic generation system and prolong the longevity of battery.This article proposed a new control strategy combined MPPT with three phase charging.Then,a digital PV charging controller was designed,and the circuit design and software program were depicted in detail.The experiment results prove the effectiveness and correctness.
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