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A New Multi Carrier Based PWM for Multilevel Converter

Mohammed, Bahr Eldin S. and K. S. , Rama Rao (2011) A New Multi Carrier Based PWM for Multilevel Converter. In: 2011 IEEE Applied Power Electronics Colloquium, IAPEC 2011, 18-19 Apr 2011, Johor Bahru, Malaysia.

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Abstract

This paper addresses a new multi-carrier modulation technique called wave shift multi-carrier modulation (WSHM), which used to control the cascade multilevel converter (CMC). The proposed switching technique generates lower voltage total harmonic distortion (THD) in comparison with conventional multi-carrier based pulse width modulation (PWM) schemes, phase-shift (PSHM) and level-shift (LSHM) modulations. To compare the performance of proposed method with PSHM and LSHM techniques, a simulation circuit of seven and nine levels for CMC is designed and simulated. To complete the comparison between the proposed method and PSHM, LSHM the dynamic behavior of dynamic voltage restorer (DVR) based seven-level CMC for power quality improvement is investigated. Digital simulations are carried out using PSCAD/ EMTDC to validate the performance of CMC.

Item Type:Conference or Workshop Item (Paper)
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Departments / MOR / COE:Departments > Electrical & Electronic Engineering
ID Code:6515
Deposited By: Assoc Prof Dr K. S. Rama Rao
Deposited On:05 Oct 2011 00:24
Last Modified:19 Jan 2017 08:22

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