This article explores in depth the types of solar inverters suitable for small-power water pumps, aiming to provide accurate inverter selection references for agricultural irrigation, small-scale industrial water supply, and home courtyards, and help achieve efficient energy utilization and water pump drive with low-cost investment.
[pdf] DC pump dedicated inverter (also known as DC-DC controller) is directly connected to the solar panel, without the need for batteries or AC conversion, and optimizes the output of the photovoltaic array through the MPPT (maximum power point tracking) algorithm to match the voltage and current requirements of the DC water pump (such as permanent magnet brush less DC motor).
[pdf] This paper describes the design and development of a solar photovoltaic (PV) inverter which is used to drive a water pump for irrigation purposes. The inverter output is fed to a three phase ac induction motor which drives the pump.
[pdf] 
