The Design Of Photovoltaic Water Pump System Based On Photovoltaic Power Supply

It is not economic to use conventional transmission to provide power and drive pump lift water. But it can use solar energy to provide electricity. With the updating of DSP chip,the control of methods for solar power generation and water pumping systems are more scientific, and then adding these features that the price fall of photovoltaic devices and photovoltaic water pump automation and easy maintenance in the recent years, so it is the most logical choice that using the photovoltaic power generation and water in these areas to solve the power supply and water supply problem.This paper focuses on the theoretical and experimental research on the optimization of the utilization efficiency of photovoltaic power generation system. It improves the water control system based on photovoltaic power supply and maximizes the use of solar energy, by the view of the cost and the reliability point. Specifically, the main contents of this paper can be divided into three parts:the design of photovoltaic power generation system, photovoltaic water pump operation optimization and optimization of the whole hardware and software, which are summarized as follows:(1)It analyzes the characteristics of the solar and photovoltaic power generation, and provides the system based on the photovoltaic power supply in these areas.(2)It introduces the main components of photovoltaic power generation system, and analyzes the influence factors of the system of the maximum power output, then it gives the corresponding measures, namely:the maximum power point tracking algorithm of MPPT. So it mainly introduces the new tracking algorithm perturbation and observation method and incremental conductance method.(3)On the basis of the characteristics of AC motor, it analyzes how to efficiently operate in motor power changes and provides the method for controlling the motor. This paper mainly introduces the knowledge based on SVPWM control method.(4)According to the above (2),(3) points, it establishes the simulation model of water control system based on photovoltaic power supply, then it realizes the function of each module through the software programming, and it gets the result obtained by software simulation. It is feasible and effective from experimental verification of the proposed algorithm.