根据光伏电池的数学模型搭建的Simulink仿真模型，MPPT算法采用的是基于占空比可调的扰动观察法，仿真结果表明该算法能够很好地跟踪最大功率点。(The model is established in Simulink based on the mathematical model of　photovoltaic cell. Disturbance observation method based on adjustable duty cycle. It is proved that MPPT can be realized by using this method.)