What are the motors of solar pump?

Other measures of photovoltaic water pump system are to ensure stable and reliable water output, or in other words, they should be implemented in the work of motor and water pump. They can form an assembly, which requires maximum reliability and high efficiency. For photovoltaic water pump, the matching of motor and water pump is not as simple as that of common motor and water pump. Because the power level and voltage level of motor are restricted by the voltage level and power level of solar cell array to a large extent, when the requirements of pump head and flow are reflected on the motor, it is generally necessary to take into account the array structure Door design. According to the different requirements of different users, the drive motors for photovoltaic water pump include: traditional DC motor with different voltage level, DC brushless permanent magnet motor, three-phase asynchronous motor, permanent magnet synchronous motor, reluctance motor, etc. From the current use, three-phase asynchronous motor and DC brushless motor are the most, and high-efficiency three-phase asynchronous motor is mainly used in high-power system. The selection and design of water pump in photovoltaic water pump system also has some characteristics. According to the different requirements of users for flow and head, the pump type can be selected according to the following principles according to the economy and reliability: users who choose positive displacement pump generally require high head and small flow; users who require larger flow and higher head should choose submersible electric pump; users who need larger flow but lower head should generally choose self-priming pump.

Compared with diesel engine water pump, solar water pump can last more than 20 years, and has the advantages of low operating cost, less maintenance or maintenance free. The popularization and application of solar water pump system can not only solve the deterioration of ecological environment such as land desertification and vegetation reduction, but also provide effective guarantee for the water use of personnel in highly dispersed areas such as pastoral areas, border defense stations, sentries, island sites and nature reserves.