Design And Analysis Of Low Power Photovoltaic Electricity Supply Device For Agriculture

In recent years,with the continuous progress of agricultural modernization and the development of intelligent agriculture,intelligent agricultural monitoring facilities and intelligent agricultural sensors play a more and more important role in agricultural production.However,in the course of its development,there are also some problems.Because intelligent agricultural monitoring and intelligent agricultural sensing need to monitor a large number of agricultural environmental parameters,power supply will use a large number of interlaced transmission lines.It will certainly increase the economic cost of agricultural production.Moreover,due to the existence of a large number of wires,wires are prone to aging,exposure and discharge affecting the safety of people's lives and property in context of agricultural production.Therefore,this paper analyzes a photovoltaic power supply device for solar battery which can be used in low power electricity supply of intelligent agriculture monitoring and intelligent agriculture sensor.Based on the analysis of the output characteristics of photovoltaic battery and the charge-discharge characteristics of lithium-ion battery,this device combines photovoltaic power generation technology with energy storage technology,and reasonably selects the structure and working components of photovoltaic controller and voltage regulator circuit.In this paper,the MPPT technology is combined with the constant current and constant voltage method,working process of the device is rationally controlled by detecting the real-time feedback current and voltage value,so as to realize the intelligent switching between the MPPT mode,constant current mode and constant voltage mode,to ensure safe and reliable work of the device.The device not only uses photovoltaic technology to reduce the cost of electricity consumption of farmers,but also does not pollute the environment in the process of use.Moreover,the device is simple and convenient to use,avoids the existence of a large number of transmission lines in the agricultural production environment,reduces the occurrence of related dangerous accidents,and reduces the cost of transmission equipment construction and the pressure of surrounding environment reconstruction.In addition,in the theoretical research,the design of this device provides a new direction for the research of photovoltaic power generation technology,widens the research field of photovoltaic generation technology,and lays a foundation for the in-depth research of photovoltaic generation technology in agriculture.In actual engineering,the energy used by the plant is solar energy,which is not only widely distributed but also economic and environmentally-friendly,which highly accords with the future development direction of energy industry,and it has an important and positive significance for promoting the developmentof agricultural modernization.