Study On The Control Of Photovoltaic Water Pumping Irrigation System In Desert Area

The change of science and technology promotes the development of industry,science and technology brings change of agricultural production efficiency.The 21 st century is an era of rapid economic development and change.With people’s living conditions getting better and better,people demand higher and higher living standards and comfort.However,in some remote western regions and desert areas of china,there is insufficient power supply and land desertification,and precipitation is scare,so it is urgent to achieve photovoltaic power generation and water imigation in these areas.Water extraction system of solar photovolatic power generation is a field of photovoltaic application.The interd is ciplinary nature of the system attracts many researchers to devote themselves to research,so as to make the system more effective,more economical and better serve the needs of all kinds of users.Kubuqi Desert is located in the west of Inner Mongolia,with little precipitation,but because it is close to the Yellow River,the groundwater level is high and the water quality is good,so it can be used as imigation water source.This are is rich in solar energy resources,with vast land.The development of photovoltaic power generation can provide power source for the system.Therefore,photovolaic water extraction imiggation has a wide development prospect in Kubuqi Desert.In this design,Siemens is used as the core processor of the system.The information of imigation system in desert area is collected by pressure,temperature and humidity sensors.Many environmental factors of system pressure,temperature and humidity have the charactenistics of time-varying and non-linear.PLC control solenoid valve,frequency converter and sumersible pump adjust the imigation environment to reach the optimal state.A set of microcomputer monitoning system is established to monitor the environmental information of the photovoltaic power generation system in real time,output the wave from curve,monitor the working condition of the motor in real time,and set the alarm system.When the collected signal parameter reaches the upper or lower limit alarm value,the system will give an alarm.After the control system is put into use,it has the advantages of simple control,convenience,strong opera ability,low maintenance cost and land desertification control.This paper combines photovoltaic power generation technonlogy,PLC control technology,frequency control technology and configuration monitoning technology,through the Internet of things design for remote monitoning and control.Realize the design of intelligent control of water lifting imigation in Kubuqi Desert Area.