基于单片机控制的单相变三相稳压电源研究

本文研究在单相供电条件下，如何设计简易高效的三相稳压电源，为小功率电动机供电，用三相电机取代单相电机，以提高在小功率范围内驱动电动机的机械效率和运行平稳性，从而达到高效、节能、降噪和环保的目的。该方案中采用了基于单片机控制的数控移相、过零比较、相位检测、脉宽调制和滤波等技术。采用PROTEUS软件对所设计的单相转三相变...

Study on Voltage-stabilized Power Supply of Converting Single-phase into Three-phase Based on MCU - controlled

This paper researches that under the condition of single-phase power supply, how to design a simplified and efficient three-phase voltage-stabilized power supply for powering-up small power motors to substitute three-phase motor for single-phase motor to enhance mechanical efficiency and operation stationarity of driving motors within the small power range, thus the objectives of high efficiency, save energy, noise reduction and environmental protection would be achieved. The MCU-controlled technologies of numerical control phase shift, zero crossing comparison, phase position detection, pulse width modulation （PWM） and wave filtering are adopted in the scheme. The designed translation circuit of converting single-phase into three-phase is simulated and also its output voltage waveform is analyzed by using PROTEUS software. The simulation results indicate that the goal of providing high-efficiency three-phase regulated power supply for small power load can be realized under the condition of single-phase power supply.