Design Of High Power Three-phase Voltage Source Rectifier (VSR) System Based On Digital Signal Processor

With the development of the green power technology, PWM rectifier has become a highlight in the field of power electronics. Due to the merits of pollution-free, adjustable power factor and bi-direction power transfer, the PWM rectifier can be an ideal electric appliance or a linkage between grid-line and other electric facilities.This dissertation focuses on the engineering design and realization of high power three-phase Voltage Source Rectifier (VSR) with emphasis on the control technique. The dissertation work, covering the methodology study, controller design, prototype implementation and experiment, is presented as following:Based on the relations between the voltages and currents in accordance with the states of the rectifier topology, the switching function model was first established and then simulated by carefully designed MATLAB programs;The controller's hardware was designed around the TI's F240 processor and corresponding software was also designed to integrate with the hardware to realize a dual-loop VSR control system.Prototype PWM rectifier was build up by choosing IPM as major switching device and experiments delivering results in good conformance with theoretical analysis were performed.The paper concludes with convincing results and expected waveforms that predict the prospect of PWM rectifier.