摘要
Abstract
In this paper, a new photovoltaic system MPPT control strategy is proposed by combining the perturbation&observation method and the recursive least squares estimation. The maximum power point voltage range is posted by perturbation&observation method with the larger step length. Converted to a small step voltage in the voltage range, the sampling current of the small step voltage is measured, the'measurement error of the current value is weakened by the recursive least squares estimation, and the current state mutation is detected by maneuver detection. The strategy improves the tracking accuracy, and is to solve the problem of misjudgment in the perturbation&observation method. The correctness and effectiveness of the strategy are verified by simulation.关键词
光伏系统/最大功率点跟踪/扰动观察法/递推最小二乘估计Key words
photovoltaic system, maximum power point tracking, perturbation&observation method, recursive least squares estimation分类
信息技术与安全科学
