光伏电池最大功率跟踪算法的优化设计

摘要

光伏电池输出功率受到光照强度、温度和负载等因素的影响而变化,有必要对光伏电池进行最大功率跟踪。文中提出了新的扰动观察MPPT方法,该方法通过控制Boost变换器的占空比来实现最大功率的控制。该方法具有跟踪效率高、跟踪速度快、跟踪控制简单的优点,仿真验证了该方法的有效性。%PV output power is affected by the light intensity, temperature and load factors, it is necessary to make maximum power tracking for photovoltaic ceils. In this paper, a new disturbance observation MPPT method is proposed. This method controls the duty cycle of Boost converter to achieve the maximum power tracking. The method has the advantages of high efficiency tracking, rapid tracking speed and simple tracking control, simulation verify the effecttive of this method.