Suboscillation Method For 3phase Inverter

Mohamad Fadzli , Ahmad Radzi (2007) Suboscillation Method For 3phase Inverter. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Pulse Width Modulation has many kinds to produce .such as single pulse width modulation, multiple pulse width modulation and sinusoidal pulse width modulation. In this project revealed one of the methods to produces Pulse Width Modulation (PWM) that is sinusoidal pulse width modulation (SPWM).Other inverter, Sines waves and triangular make an important part in produces PWM Sines wave will compare with triangular wave which it is become input for inverter and produces PWM. For three phases inverter sines wave must be shifted by 120° for each phase and output can be changing with change the amplitude and frequency of sines waves which for amplitude known as modulation index and frequency is modulation ratio. Every change of amplitude will make Total Harmonic Distortion for voltage and current change too. The output voltage is varied by the pulse width control, and the harmonic are profiled by modulation of pulse width or switching frequency due to very to improved harmonic profiling compatibility. The Sine PWM technique is popular in modem inverter compare Square wave inverter. In this report will explain all results that will be obtained and explain the theoretical to produces PWM.

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