【摘要】 太阳能光伏阵列的输出特性受外界环境因素的影响,为了跟踪太阳能光伏阵列输出功率最大点,实现光伏阵列和负载的匹配,常在系统中加入最大功率跟踪器。准确跟踪太阳能光伏阵列的最大输出功率点依赖于有效的搜索算法。分析了传统的扰动观察法和增量电导法的特点,并提出了一种新的变步长寻优算法。通过验证表明,这种算法能够快速准确地跟踪最大功率点。更多还原

【Abstract】 The output of photovoltaic(PV) array is influenced by the environmental factors such as irradiation and temperature.Maximum power point tracker(MPPT) is usually used in PV systems to track the maximum power point and match the array and the load. Exactly tracking the maximum power point depends on effective search algorithm.This paper analyzes the advantages and disadvantages of traditional perturb and observe(P&O) and incremental conductance(IncCond) algorithm,then proposed a novel varied step optimization algorithm which has been testified by MATLAB.Simulation results show this algorithm can fast and exactly track the maximum power point.更多还原