International Conference on Innovations In Intelligent Instrumentation, Optimization and Electrical Sciences |
Foundation of Computer Science USA |
ICIIIOES - Number 8 |
December 2013 |
Authors: T. Sengolrajan, B. Shanthi, S.p. Natarajan |
T. Sengolrajan, B. Shanthi, S.p. Natarajan . Performance Analysis of Multicarrier PWM Strategy for Seven Level Diode clamped Z-Source Inverter. International Conference on Innovations In Intelligent Instrumentation, Optimization and Electrical Sciences. ICIIIOES, 8 (December 2013), 15-20.
This paper investigates the performance analysis of various Multicarrier Pulse Width Modulation strategies with Sinusoidal reference for single phase seven level diode clamped Z-source inverter designed with two intermediate Z-source networks connected between the input source and inverter circuit. The diode clamped Z-source based MLI strategy enhances the fundamental output voltage and reduces the Total Harmonic Distortion (THD). Performance factors such as %THD, Vrms where measured and CF, DF of output voltage are calculated for different modulation indices 0. 8-1. The results are compared. The simulation results indicate that the use of Z-Source in DCMLI boost 60% of the total output voltage. PODPWM strategy provides low THD and COPWM strategy is found to perform better since it provides relatively higher fundamental RMS output voltage.