变频调速中能量回馈控制系统的研究

Study to Energy Feedback Control System during Frequency Velocity Regulation

针对变频器不能直接用于快速启动、制动和频繁正反转调速场合的问题,设计了基于DSP控制器——TMS320LF2407A能量回馈控制系统,对能量回馈装置电网电动势前馈的SPWM控制,建立了相关的控制模型,实现了单位功率因数正弦波电流回馈和对电流的精确控制。

Since transducer can not be directly applied to rapid start,braking and constant shift between positive and negative rotation,the paper designed the energy feedback control system based on DSP controller——TMS320LF2407A,realized the SPWM control to feedforward of electromotive force in power network of energy feedback device.The relevant control model was founded to realize the feedback of sinewave current of unit power factor and accurate control to current.