PV-driven Water Pumping System

Working principle and precautions for use of photovoltaic water pumpsWorking principleThe photovoltaic water pump system uses solar energy as its power source, and its core components are photovoltaic panels, controllers and water pumps. When sunlight shines on the photovoltaic panel, the semiconductor material in the photovoltaic panel generates electron-hole pairs under the action of photons. The internal electric field drives the electrons and holes to separate and form direct current. The direct current is transmitted to the controller through wires. The controller assumes the key responsibility of regulating the voltage and current to ensure stable output and adapt to the power parameters of the water pump operation. After the water pump receives stable power from the controller, the motor starts to run, driving the impeller to rotate at high speed. The rotation of the impeller generates negative pressure inside the pump body, which then draws water from the water source (such as…