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EVALUATION OF VARIOUS UNIPOLAR MULTICARRIER PWM STRATEGIES FOR FIVE LEVEL FLYING CAPACITOR INVERTER

By B. SHANTHI and S. P. NATARAJAN

Abstract

This paper presents the comparison of unipolar multicarrier Pulse Width Modulation (PWM) techniques for the Flying Capacitor Multi Level Inverter (FCMLI). Due to switch combination redundancies, there are certain degrees of freedom to generate the five level AC output voltage. This paper presents the use of Control Freedom Degree (CFD) combination. The effectiveness of the PWM strategies developed using CFD are demonstrated by simulation and experimentation. The results indicate that the multilevel inverter triggered by the developed USHPWM strategy exhibits reduced harmonics. PWM strategies developed are implemented in real time using dSPACE/Real Time Interface (RTI). The simulation and experimental output closely match with each other validating the strategies presented

Topics: CFD, dSPACE, FCMLI, PWM, Unipolar PWM, dSPACE, Engineering (General). Civil engineering (General), TA1-2040, Technology, T, DOAJ:General and Civil Engineering, DOAJ:Technology and Engineering, Technology (General), T1-995
Publisher: Taylor's University
Year: 2012
OAI identifier: oai:doaj.org/article:168174a4235d4d6ea92e9d1d58009b97
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  • https://doaj.org/toc/1823-4690 (external link)
  • http://jestec.taylors.edu.my/V... (external link)
  • https://doaj.org/article/16817... (external link)
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