带MPPT控制的光伏充电控制器的设计

摘要

A photovohaic controller can intelligently charge controller with MPPT （maximum power point tracking） control is designed. This choose work mode of charger by detecting charging voltage and current of battery. When sunlight is weak, the controller switches automatically to makes the photovot｜aic battery produce maximum power MPPT mode using perturbation control strategy. This mode output ,and the controller has a good charging efficiency. Experiment results well illustrate the effectiveness of the designed controller.%本文设计了一种具有MPPT控制的光伏发电充电控制器。该控制器通过检测蓄电池充电电压、充电电流的大小，智能选择充电器的工作状态，并在光照强度不足时自动切换到光伏发电最大功率点跟踪控制MPPT状态，采用扰动控制策略使光伏电池有最大的功率输出，使控制器有较好的充电效率。实验结果较好地说明所设计控制器的有效性。