Indian Journal of Science and Technology

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Many important parameters are effective on the output current of voltage source inverter (VSI) that among them load type, frequency, and load connection can be mentioned. In VSI, the current waveform is affected from mentioned parameters. Variation of these parameters can change the output current total harmonic distortion (THD). It is desired that the output current waveform to be close to sinusoidal. In this paper, by constructing a VSI, effect of load connection, frequency, and load type such as resistive, resistive-inductive, and inductive on VSI output current harmonics are investigated. For this purpose, different operational modes are defined for two structures of VSI, and effects of these parameters on output current are evaluated. Also, this voltage source inverter is simulated in PSpice that verify the experimental results.

Keywords

Power Quality, SHE-PWM, Voltage Source Inverter, Selective Harmonic Elimination, Modulation Index, Load Type And Pspice
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