A Performance Evaluation of 1-Phase 3-Level T-Type Multilevel Inverter usig Advanced PWM Techniques
Monika Agrawal, Dr.Vijay Bhuria, Dr.Shishir Dixit
Multi-level inverter (MLI), T-type inverter and SPWM techniques.
The elementary concept of a multilevel inverter to achieve higher power is to use a series of power semiconductor switches with several lower voltage dc sources to perform the power conversion by synthesizing a staircase voltage waveform. Multilevel inverter has a capability to increase the output voltage and performance with low switching losses and total harmonic distortion as the level increases the harmonic itself decreases. This paper proposes a 3-phase 3-level T-type inverter with various SPWM strategies having less number of devices which posses high and low power region as compared to conventional inverter. Generally, it is used for low power appliances having maximum efficiency. A 3-phase 3-level T-type inverter was implemented and multicarrier PWM technique is used for multilevel inverter strategies to generate 3-level output phase voltage. Finally simulation results of a 3-level multi-level inverter topology are carried out using MATLAB/SIMULINK R2013a with various SPWM strategies as PD, POD, APOD and its switching on/off pattern of IGBT’s.
Article Details
Unique Paper ID: 148552

Publication Volume & Issue: Volume 6, Issue 3

Page(s): 117 - 122
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