Research Of Photovoltaic Pump Control System

Energy and the increasingly serious ecologyical problems, forcing us to find new renewable sources of energy.And the advantages of solar are green non-pollution, safety, inexhaustible supply,which make the world focus on solar energy.Photovoltaic pump system is an important area of solar energy, it has advantages of no pollution, large reserves and high reliability, that makes a lot of sense to protecting the environment, reducing the fossil fuel use.So researching the MPPT photovoltaic pump system is of great significance.This topic analyzes the progress and prospects of the development of photovoltaic pump advantages, the existing photovoltaic water pump control system on the market to do a comparative analysis, we design a photovoltaic water pump control system based on DSP56F8037.Proposed to improve the study design scheme of the MPPT of photovoltaic water pump control system.At the same time compared with several kinds of classic traditional maximum power point tracking algorithm such as constant pressure method, disturbance observation method, incremental conductance, based on database and fuzzy control and so on.And using the Matlab to simulate,and that the fuzzy control algorithm was determined.The simulation results prove that the fuzzy control algorithm for tracking effect and the accuracy is better than other several classical algorithms. This article uses PVsystem battery components of simulation for seeking the optimal dip Angle, to improve the efficiency of the cell array.This paper analyzes the advantages and disadvantages of several kinds of motor, determined using sensorless brushless dc motor, and made a careful study of its control method. Designed an accurate electronic commutation method, and studied the winding back emf zero point detection of the dc brushless motor, finally design a motor protection against type dry test procedure.Another big innovations of this article is to add the energy storage device, which solves the rainy weather conditions need of water in urgent and no sunshine.