Performance Evaluation of the Three-Phase AC-AC Matrix Converter with Adjusting the Switching Frequencies of the SPWM
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Abstract
This paper presents the direct conversion of the three-phase AC input to the three-phase AC output without the DC Link which the converter is called the Matrix Converter. This converter is using the 9-units of bidirectional switches, IGBT-Power Diode. The converter is converting a constant utility three-phase sinusoidal supply voltage and frequency into a variable output voltage and frequency through alteration of the frequency and modulation index of the SPWM signals used by the converter. A mathematical approach is initially applied to describe the principle of the Matrix Converter. Moreover, the voltage and current waveforms, the efficiencies, the harmonics analysis and the total harmonics distortion (THD) of the output side and input side of the voltage and the current waveforms are observed at several the output frequencies which the switching frequencies of the SPWM are adjusted for the performance evaluation of the converter. The simulation results of this converter are observed by the MATLAB/Simulink program.
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ลิขสิทธ์ ของมหาวิทยาลัยเทคโนโลยีราชมงคลพระนครReferences
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