| Summary: | 碩士 === 國立成功大學 === 電機工程學系碩博士班 === 93 === The current harmonics of the traditional diode/SCR rectifiers can not meet the IEC61000-3-2 Class A regulation. In this thesis, a DSP-based three-phase boost
rectifier is studied and implemented. The three-phase boost rectifier control the line current with sinusoidal waveform and in phase with line voltage. Thus, low harmonic current and high power factor can be achieved. The detailed operational principle and the control method of the three-phase boost rectifier are described in this thesis. In addition, the solution of the state-space average equations is discussed. Therefore, the constraints of the output voltage and the boost inductance are determined. The three-phase boost used as bi-directional power flow is briefly discussed. Finally, the TMS320LF2407 DSP control chip is employed to realize 1kW three-phase boost rectifier. The PSIM simulated results and practical measured results are perform to validate the theoretical analysis.
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