【摘要】 最大功率点跟踪(MPPT)控制技术是光伏系统领域中在一定环境温度以及日照强度情况下太阳能电池阵列能够输出的最大功率。传统的控制方法是检测系统的输入电压和输入电流,计算其输入功率并使其达到最大。本文通过Buck变换器实现系统的最大功率点跟踪,其实现方法是检测系统的输出电压或者输出电流,通过软件的精确算法控制变换器的占空比,从而使得太阳能电池阵列的输出功率最大化。实验结果验证了该方案的可行性和正确性。更多还原

【Abstract】 The control technology of maximum power point tracking(MPPT)is the maximum output power of photovoltaic cell array under given conditions of a certain environment temperature and sunshine intensity in the photovoltaic system domain. The conventional method is to measure the input voltage and current in order that the input power is maximized. In this paper, the system MPPT is achieved by Buck converter. This method is to measure the output voltage or output current, and the converter duty is controlled by the accurate algorithm of program so as to maximize output power of photovoltaic cell array. The experiment results verify the availability and correctness of the proposed method.更多还原