光伏水泵系统研究进展

 光伏水泵系统无需电网和燃油，因而在干旱缺水地区及无电地区的应用前景非常好。然而光伏水泵在实际应用中存在系统造价昂贵，最大功率点跟踪方法繁多但通用性差，电机与水泵的类型选择和容量匹配复杂等难题，这些问题制约着光伏水泵的推广使用，亟待解决。通过对国内外论文中出现的光伏水泵系统的多种最大功率点跟踪技术、电机与水泵的选用方案及其容量匹配等进行综述，总结了各种最大功率点跟踪技术的优缺点及其适用范围、各类驱动电机的应用范畴及水泵容量的匹配原则，为不同应用条件下光伏水泵系统的合理选型提供了理论依据，并对光伏水泵系统的优化设计提出5 点建议，提出光伏水泵系统今后的发展方向。

A Review of the Photovoltaic Pump System

The photovoltaic pump system is promising in the arid and non power grid areas, because it can operate without fuel and without being connected to a power grid. However, there are a lot of problems in the actual application of the photovoltaic pump system, such as the cost of the system is much too expensive, the maximum power point tracking (MPPT) involves various methods with poor universality, and the matching of the motor and the pump capacity is complex. These problems need to be addressed for the application of the photovoltaic pump system. This paper reviews the related domestic and overseas studies, including the MPPT technology, the selection schemes and their capacity matching of motor and water pump. The advantages and disadvantages of all kinds of MPPT technologies are summarized with respect to the scope of application, and the application scope of all kinds of drive motor and the capacity matching principle of pump as an adequate theoretical basis for the reasonable selection of a photovoltaic pump system under different application conditions. Finally we put forward five suggestions for the optimum design of the photovoltaic pump system, and point out the direction for further research and development of the photovoltaic pump system.