Solar pump inverter, otherwise known as PV pump, is the most appealing water supply for sunny areas, and especially those remote and border areas where power is lacking or insufficient. It is easily accessible, endless, automatic, around-the-clock, and unattended, with minimal workload of maintenance. It is a kind of economical, reliable, and environment-friendly ideal green energy system.
PV pumping inverter drives its pumping system by using the electric power delivered by PV array. The whole PV pumping system mainly consists of array, pumping inverter and pump.
PV array is mainly responsible for transforming solar light energy into electric energy and providing electric power for loaded pumping motor.
PV pumping inverter or controller is mainly responsible for controlling and regulating the operation of the pump. The electric power delivered by solar array is used to drive the pump. The real- time output frequency is regulated in line with the changes of sunshine intensity so as to make output horsepower close to the maximal horsepower of the solar cell array.
A pump is a collective mechanical system that is used to lift, convey liquid or charge pressure for liquid, in other words, transforming the mechanical energy of the prime motor into liquid energy so as to pump liquid.
Introduction to pump
Pump is a machine used to transport liquid or charge pressure for liquid. It transports the mechanical energy of prime motor or other energy to liquid to increase the energy of liquid. A pump mainly transports such kinds of liquid as water, oil, acid and alkali, emulsification, suspension-emulsion as well as fluent metal and liquid-gas mixture, and nsuspended solid. The technical parameters of measuring pump performance include flow, suction lift, delivery lift and brake power, water horsepower and efficiency. According to different operating principles, pump can be divided into containment pump, paddle pump. A containment pump uses the changes of the capacity of a workshop to transport energy while a paddle pump uses the interaction between rotating blade and water to transport energy. Besides, there are other types of pump, such as centrifugal pump, axial flow pump and mixed-flow pump. According to control principles, centrifugal pump can be divided into AC pump, brush DC pump, brushless DC motor, isolated magnetic brushless DC pump and three-phase AC pump.
Solar pump, otherwise known as PV pump, is the most appealing water supply for sunny areas, especially those remote and border areas where power is lacking or insufficient. It is easily accessible, endless, automatic, around-the-clock, and unattended, with minimal workload of maintenance. It is a kind of economical, reliable, and environment-friendly high-tech green energy system. Solar pumping system is an optical-electro-mechanical system that has shaped over the past few years. Taking advantage of the electric power emitted by solar cell, a solar pumping system drives direct current, permanent magnetism, brushless, sensorless, and double plastic motor stator and rotor or highly-effective asynchronous dynamo or high-speed switched reluctance motor by following the maximal power point as well as commutation and control equipment to create highly-effective pumping to lift water from the depth of the earth’s surface to the ground for irrigation or drinking. The design and the manufacturing of a solar pumping system need the support of modern technology, such as electricity, mechanics, electric power, electronics, computer and control. The solar pumping system provides an optimal approach to develop modern agriculture, save energy and protect environment. The system has long-term economical efficiency. In particular, compared to the pumping of common diesel engine, the pumping of this new system has overwhelming economical advantage. There is no doubt that the launch of such new environment-friendly, energy-saving product can significantly expedite the development of industry, economy, and especially the development of modern agriculture in arid areas, bringing massive and high economic efficiency and social efficiency. It is an embodiment of the strategy of building an energy-saving and environment-friendly society.
Solar pumping system comprises DC pumping and AC pumping. The driving modes of the DC pumping motor is made up of two major types, namely, brushless AC motor and PMSM( permanent magnetic simultaneous motor).