【摘要】 为进一步降低PWM整流器交流侧电流畸变因数,以瞬时功率理论为基础,采用了新型的基于瞬时电流直接控制的脉宽调制方法,设计了基于瞬时电流的直接控制系统。首先,对基于瞬时电流直接控制的脉宽调制方法做了简要介绍。然后,在Matlab环境中进行验证分析。最后,在25k W的样机上对控制系统进行了软硬件分析,结果表明控制系统具有交流侧电流畸变因数低,控制简单的优点。更多还原

【Abstract】 In order to further reduce the current distortion factor of AC side of PWM rectifier,the paper adopts the pulse width modulation based on instantaneous current and designs the direct instantaneous current control system based on the instantaneous power theory.At first, this paper briefly introduce the direct control of pulse width modulation based on the instantaneous current. Then, the system is verified by simulation model based on Matlab environment.Finally,the hardware and software of the system is analyzed on the prototype of 25 k W. The results show that the control system has the advantage of low AC distortion factor and simple control.更多还原