基于感应电机的户用光伏水泵调速系统

Residential PV Pumping System Based on Induction Motor

介绍了一种基于空间矢量脉宽调制的(SVPWM)户用型光伏水泵系统。该系统采用两级变换方式,主电路DC/DC部分为推挽正激电路,DC/AC部分采用一体化智能功率模块(ASIPM)。同时结合光伏水泵的工作特点,提出了一种基于最优梯度法的光伏电池最大功率跟踪控制方式。实验结果表明,该系统运行稳定可靠,输出电流谐波失真小。

A residential PV pumping system based on SVPWM was introduced. This system adopts two- stage transform, the main circuit DC/DC part uses a novel push-pull forward circuit, DC/AC part adopts the ASIPM. A control method of solar array maximum power point tracking based on optimal gradient method was performed considering the operation characteristics of PV pumping system. The experimental results show that the system is realized stability and has less output current harmonics distortion.