基于STM32F429微电网模拟系统设计与实现

Design and Implementation of a Microgrid Simulation System Based on STM32F429

阐述STM32F429单片机作为控制器设计一种的微电网模拟系统,系统由32单片机最小系统、DC-AC三相逆变主电路、驱动控制电路、电压电流采样电路及辅助电源电路五个主要模块组成。通过单片机产生脉冲宽度按正弦规律变化的SPWM波,经过模拟两组DC-AC逆变器不同工作方式对SPWM波逆变,对模拟系统输出电气量的测量。实验表明,在两组逆变器不同运行方式下,不同负载情况下,系统输出电气量值均在允许波动范围内。

This paper describes the design of a microgrid simulation system using the STM32F429 microcontroller as a controller.The system consists of five main modules:the minimum system of a 32 microcontroller,the DC-AC three-phase inverter main circuit,the drive control circuit,the voltage and current sampling circuit,and the auxiliary power supply circuit.By using a microcontroller to generate SPWM waves with a sinusoidal pulse width,two sets of DC-AC inverters are simulated to invert the SPWM waves in different working modes,and the electrical output of the simulation system is measured.The experiment shows that under different operating modes and load conditions of two sets of inverters,the electrical output values of the system are within the allowable fluctuation range.