【摘要】 简要介绍了采用太阳能作为能源的水体净化装置和光伏电源系统的特性及最大功率点跟踪的基本原理。提出了一种采用干扰观测法配合Sepic拓扑的斩波电路实现太阳能电池最大功率点跟踪控制方法,即将太阳能电池和Sepic斩波电路作为一个整体,直接根据检测到的电池功率变化来控制Sepic电路的占空比来跟踪最大功率点,这些改进使得系统简化。更多还原

【Abstract】 Introduce a Solar Purification device of Water,photovoltaic power system’s characteristics and maximum power point tracking principle.Proposed a control method of MPPT(Maximum Power Point Tracing) based on P&O(Perturb & Observe) algorithm and Sepic Chopper.It took PV(photovoltaic) module and Sepic converter as a whole.It directly detected voltage and current of curcit and controlled the duty of the Sepic converter by the P&O algorithm,this may make system simple.更多还原