Research Article Open Access

MODELLING AND SIMULATION OF DIODE CLAMP MULTILEVEL INVERTER FED THREE PHASE INDUCTION MOTOR FOR CMV ANALYSIS USING FILTER

Abstract

In this paper, we have proposed a passive filter with an objective of eliminating the common-mode and differential mode voltage generated. For determining the parameters of filter, the filter transfer function is utilized to achieve a desirable filtering performance. Simulation is carried out on a 415V/3Hp induction motor sysem to verify the validity and effectiveness of proposed filter. Multilevel inverter can synthesize switched waveforms with lower levels of harmonic distortion than an equivalently rated two-level converter. The multilevel concept is used to decrease the harmonic distortion in the output waveform without decreasing the inverter power output. The most important topologies like diode-clamped inverter (neutral- point clamped), capacitor-clamped (flying capacitor), and cascaded multilevel with separate dc sources. various modulation technique in multilevel inverter are sinusoidal pulse width modulation, selective harmonic elimination. & space vector modulation.

Akash A. Chandekar , R.K.Dhatrak Dr.Z.J..Khan

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