According to the characteristics of the PV power-voltage curve,different adaptive step-size perturbation observation maxi-mum power point tracking algorithms are used on both sides of the maximum power point:the adaptive step-size algorithm based on tanh function is used for the right side,and the adaptive step-size algorithm based on the improved tanh function based on weight factor is used for the left side.The feasibility and superiority of the proposed adaptive step-size perturbation observation maximum power point tracking algorithm based on the weight factor improved tanh function are verified through simulation analysis and hardware tests.The simulation analysis and hardware test results show that the adaptive step-size perturbation observation maximum power point tracking al-gorithm based on the improved tanh function of the weight factor has better tracking speed and accuracy in both irradiance and tempera-ture change scenarios,which can provide efficient and stable power output of the PV system.
关键词
最大功率点跟踪/扰动观察法/自适应步长/权重因子/tanh函数
Key words
maximum power point tracking/perturbation observation method/adaptive step size/weight factor/tanh function
维普
万方数据