Please use this identifier to cite or link to this item: https://doi.org/10.1109/IECON.2013.6700169
Title: Optimal low switching frequency pulsewidth modulation of medium voltage seven-level cascade-5/3H inverter
Authors: Edpuganti, A.
Rathore, A.K. 
Issue Date: 2013
Source: Edpuganti, A.,Rathore, A.K. (2013). Optimal low switching frequency pulsewidth modulation of medium voltage seven-level cascade-5/3H inverter. IECON Proceedings (Industrial Electronics Conference) : 6287-6292. ScholarBank@NUS Repository. https://doi.org/10.1109/IECON.2013.6700169
Abstract: This paper presents the operation of seven-level inverter at maximum switching frequency of 75 Hz using synchronous optimal pulsewidth modulation (SOP). Employing SOP permits increasing efficiency by reducing switching losses of power semiconductor devices without compromising on total harmonic distortion (THD). A cascade-5/3H inverter topology is adapted used due to limitations of diode-clamped and capacitor-clamped topologies for higher-level inverters. SOP technique derives optimal switching angles for minimizing the THD and later seven-level waveforms are divided into 3-level and 5-level waveforms for cascade-5/3H topology so as to minimize the switching frequency and DC-link voltage unbalance. Simulation results of seven-level inverter using PSIM 9.0 operating at maximum device switching frequency of 75 Hz are shown to validate the developed modulation. © 2013 IEEE.
Source Title: IECON Proceedings (Industrial Electronics Conference)
URI: http://scholarbank.nus.edu.sg/handle/10635/84051
ISBN: 9781479902248
DOI: 10.1109/IECON.2013.6700169
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