Research And Design Of Micro-energy Grid Controller Based On STM32

In order to solve the problems of energy shortage and environmental pollution,researchers actively develop and use new energy.Micro-grid effectively solves the grid connection problem of distributed generation,and improves the power supply reliability and system stability.On the basis of micro-grid,micro-energy grid is formed by integrating ground source heat pump and solar heat pump.The energy grid contains three kinds of energy systems: cold,heat and electricity,and has a high proportion of new energy access and energy utilization.As a new type of distributed generation system,the monitoring and energy management of micro-energy grid is of great significance.Through the intelligent micro-energy grid system,providing advanced visualization means,improving the monitoring ability of the system and realizing its flexible and efficient management,it is helpful to improve the power quality and improve the energy utilization efficiency.This paper designs a set of monitoring system of micro-energy grid.Through the design of software and hardware of STM32 unit and Alibaba cloud Internet of things platform,the functions of data acquisition,operation control,status monitoring and system networking of micro-energy grid system are realized.According to the monitoring objectives and coordination mechanism,the overall architecture of micro-energy grid monitoring system is planned,which is composed of control terminal of command execution layer,central controller of signal transmission layer and touch screen of control decision layer,Internet of things platform and mobile display terminal.The control terminal can collect the state parameters and electrical parameters of the micro-energy grid system in real time,and control the operation of the micro-energy grid in parallel and out of the network to maintain the power balance;the central controller can send the received data to the Internet of things platform through Wi Fi module and to the touch screen through serial communication for display and storage;the touch screen can display the data of each measured and controlled unit The platform of Internet of things can store and calculate the data;the mobile display terminal can display the collected micro-energy grid information to realize the remote monitoring.Hardware circuit design mainly includes main module circuit,power module circuit,acquisition module circuit,control module circuit and communication module circuit;software program design mainly includes main program,data acquisition program,control program,communication program and alarm program of control terminal,main program,networking program,communication program and touch screen program of central controller;Internet of things platform The design mainly includes background program and mobile display terminal program.Finally,the function and performance of the monitoring system are tested.The test results show that the micro-energy grid monitoring system achieves the expected function,meets the performance index.