基于PID控制的微电网模拟系统设计

Design of Micro-grid Simulation System Based on PID Control

本课题旨在设计微电网的一种基于PID控制的微电网模拟系统,分析了微电网的目前情况和模型系统设计的实现方法,基于此,并构思出在STM32上设计微电网模拟系统的思路。并在此基础上提出了实现微电网的PID控制方案。该系统采用STM32F407ZET6单片机作为控制模块的核心部件,利用三相逆变器将直流电逆变为交流电,将交流电中高频信号过滤,并使用交流电压采样来采集三相逆变模块输出的三相交流电中的线电压的有效值并将其反馈给主控芯片。最终用PID调节实现自动控制。

This project aims to design a micro grid simulation system based on PID control, analyze the current situation of micro grid and the implementation method of model system design, based on this, and conceive the idea of designing micro grid simulation system on STM32. On this basis, a PID control scheme to realize micro-grid is proposed. This system adopts STM32F407ZET6 single-chip microcomputer as the core component of the control module. Three-phase inverter is used to invert direct current to alternating current and filter high-frequency signals in alternating current. And ac voltage sampling is used to collect the effective value of line voltage in three-phase alternating current output by three-phase inverter module and feed it back to the main control chip. Finally, PID adjustment is used to realize the automatic control.