Science: What is a solar water pump?

Solar pumping system, also known as photovoltaic pump, is the most attractive water supply method in the sun-rich regions of the world, especially in remote areas where there is no electricity or electricity, and the use of solar energy, which is everywhere, is inexhaustible. Automatically sunrise and sunset, without personnel supervision, maintenance workload can be reduced to a minimum, it is an ideal green energy system that integrates economy, reliability and environmental protection benefits.

The solar water pump works through the photovoltaic lift inverter. Photovoltaic lift inverters are photovoltaic lift systems that use the power generated by the PV array to drive the pumps. The entire system is mainly composed of photovoltaic arrays, photovoltaic lift inverters, and water pumps.

Solar Array (also known as Solar Array) is mainly used to convert solar light energy into electrical energy to provide operating power to the load pump motor.

A Solar Pumping Inverter or controller controls and regulates the operation of the solar water pump, uses the energy generated by the solar array to drive the water pump, and adjusts the output frequency in real time according to the change of the sunshine intensity, so that the output power is close to The maximum power of the solar array.

Pumps (pumps) are generally referred to as pumps for lifting liquids, delivering liquids, or for increasing the pressure of a liquid, that is, converting the mechanical energy of the prime mover into liquid energy to achieve the purpose of pumping the liquid.

The solar water pump system is an electro-mechanical integration system that has been rapidly developed in recent years. It utilizes the power generated by solar cells and drives DC, permanent magnet, brushless, and position-free sensors through devices such as maximum power point tracking and conversion and control. Rotor double-plastic motor or high-efficiency asynchronous motor or high-speed switch reluctance motor drives a high-efficiency pump to raise water from the depth of the ground to the ground for irrigation of farmland or drinking by humans and animals.

From design to manufacturing, modern technologies involving electrical, mechanical, power electronics, computers, control, and other disciplines provide extremely good means for the development of modern agriculture, energy conservation, and environmental protection. This system has good long-term economic efficiency, especially compared with the common diesel pumping, and has the economic advantages of overwhelming. The development of this new type of environmentally friendly and energy-saving products will undoubtedly bring great economic and social benefits to the development of industries and economic development, especially the development of modern agriculture in arid regions. It is particularly suitable for the construction of “resource-saving” and “environment-friendly”. "Type" social development strategy. In addition, a large number of intentions for international orders indicate that the prospects of this high-tech product in the international market are very encouraging. Photovoltaic pump system as a just emerging industry, is very consistent with China's sustainable development strategy.

Solar water pumps are divided into two major series: DC pumps and AC pumps. Among them, the direct current water pump motor drive mode is divided into two major categories: a brushless DC motor and a permanent magnet synchronous motor.

Advantage

(1) Reliable: Photovoltaic power supplies rarely use moving parts and work reliably.

(2) Safe, no noise, no other hazards. Does not produce any solid, liquid and gas harmful substances, absolutely environmental protection.

(3) Simple installation and maintenance, low operating cost, and unattended use. Especially with its high reliability and attention.

(4) The compatibility is good. Photovoltaic power generation can be used in conjunction with other energy sources, and the photovoltaic system can be easily added as needed.

(5) High degree of standardization, which can be used to meet the needs of different types of power consumption.

(6) Solar energy is everywhere and has a wide range of applications.

However, the solar energy system also has its shortcomings, such as: energy dispersion, intermittent and regional. The cost is higher in the early period.

Product features: long life, low power consumption, low noise, balanced speed, reliable operation, no interference and so on.

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