Open AccessCOMPARATIVE STUDY ON CARRIER OVERLAPPING PWM STRATEGIES FOR THREE PHASE FIVE LEVEL DIODE CLAMPED AND CASCADED INVERTERS
Author(s) -
S. Narasimha Rao,
Abhishek Kumar,
K. Navatha
Publication year - 2013
Publication title -
international journal of electrical and electronics engineering
Language(s) - English
Resource type - Journals
ISSN - 2231-5284
DOI - 10.47893/ijeee.2013.1069
Subject(s) - pulse width modulation , total harmonic distortion , control theory (sociology) , matlab , inverter , three phase , computer science , electronic engineering , voltage , topology (electrical circuits) , harmonic , engineering , physics , control (management) , electrical engineering , quantum mechanics , artificial intelligence , operating system
This paper proposes three Carrier Overlapping PWM (COPWM) methods that utilize the (CFD) control freedom degree of vertical offsets among carriers. They are: COPWM-A, COPWM-B, COPWM-C these three methods are simulated . This paper presents a comparative study of diode clamped and cascaded three phase five-level inverters based on sinusoidal PWM& modified space vector PWM control techniques. Performance analysis is based on the results of simulation study conducted on the operation of the multilevel inverters using MATLAB/ SIMULINK. For comparison purposes, non-overlapping phase disposition PWM (PD PWM) using SPWM and modified space vector PWM is also presented. The performance parameters chosen the work included fundamental output voltage and total harmonic distortion. . A hardware set up was developed for a single-phase 5-level cascaded inverter topology using constant pulses.