Solar photovoltaic water-saving irrigation fully integrates the photovoltaic industry with agricultural water conservancy. It is expected to open up a new era of energy photovoltaic agriculture.
 
The basic principle of the solar water pump system is to use the photovoltaic effect of solar cells to generate electricity and drive the motor to drive the pump to lift water. For areas where electricity is more difficult, solar light can be used to drive the pump is the best choice. Solar water pumps have a wide range of applications. They can be used for agricultural irrigation, and can also be used for household water self-sufficiency, desert greening and grassland animal husbandry.
 
At present, there are two major product series technologies of AC and DC photovoltaic pumps in China and systems for global application and promotion.
The core device of the photovoltaic water pump system is the controller in the system. It can avoid the change of the pump flow rate due to the change of sunshine intensity, and basically guarantee the stability of the water flow. At the same time, it protects the water pump. The system saves energy storage devices such as batteries and directly drives the water pump to lift water. Greatly reduce the system's pre-construction and post-maintenance costs. Because the price of the battery itself is more expensive and easy to break.
 
The photovoltaic water pump controller controls and regulates the operation of the system to achieve maximum power point tracking. Ensure the rated operation of the system when the sunshine is sufficient. When the sunshine is insufficient, the minimum operating frequency is set to meet. Ensure the full use of solar battery power.
 
Water pumps pump water from deep wells, rivers and lakes and other water sources and inject it into water tanks/pools. Or directly connect to systems such as irrigation or fountains.
Photovoltaic water pumping system utilizes long-lasting energy from the sun, does not require personnel supervision, fossil energy, and integrated power grids, and is independent, safe and reliable. It can be used with irrigation facilities such as drip irrigation, sprinkler irrigation and infiltration irrigation. Effectively solve the problem of arable land irrigation, increase production, save water and energy. Significantly reduce the input cost of traditional energy and electricity. Therefore, it has become the most effective way to use clean energy to replace fossil energy. It has become a new energy and new technology application product for comprehensive solutions to the global "food problem" and "energy problem". Especially in line with the country's social development strategy of "resource-saving" and "environmentally friendly"