PWM Strategies for Multilevel Inverter and Dc Link Capacitor Voltage Balancing For an Induction Motor Drive

PWM Strategies for Multilevel Inverter and Dc Link Capacitor Voltage Balancing For an Induction Motor Drive

Article ID

05Q0C

PWM Strategies for Multilevel Inverter and Dc Link Capacitor Voltage Balancing For an Induction Motor Drive

Dr. Srinivas Dasam

Dr BVSankerram

DOI

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Abstract

Multilevel PWM techniques are extensions of twolevel PWM methods; the multiple levels in these inverters offer extra degrees of freedom and greater possibilities in terms of device utilization and effective switching frequency. Though the SPWM and its variations are popular PWM techniques in multilevel inverters, implementing them in a digital platform is tedious, as the pulse-widths can only be defined by transcendental equations. A dc link capacitor voltage balancing scheme is proposed for an induction motor drive. The motor is fed from with threelevel inverters generating a five level output voltage structure. The proposed inverter vector locations exhibit multiplicity in the inverter switching combinations which is suitably exploited to arrive at a capacitor voltage balancing scheme. This allows the use of a single dc link power supply for the combined inverter structure. The lower order harmonic components in the output voltage waveform are eliminated by raising the carrier frequency.

PWM Strategies for Multilevel Inverter and Dc Link Capacitor Voltage Balancing For an Induction Motor Drive

Authors

Dr. Srinivas Dasam

Dr BVSankerram

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How to Cite

Mr. Srinivas Dasam. 2012. “. Global Journal of Research in Engineering – F: Electrical & Electronic GJRE-F Volume 12 (GJRE Volume 12 Issue F5): .

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Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

GJRE Volume 12 Issue F5
Pg. 29- 35

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Submission Received February 12, 2012
Accepted February 29, 2012
Published March 15, 2012

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Article Matrices

Total Score: 107

Country: India

Subject: Global Journal of Research in Engineering - F: Electrical & Electronic

Authors: Dr. Srinivas Dasam, Dr BVSankerram (PhD/Dr. count: 1)

View Count (all-time): 150

Total Views (Real + Logic): 5440

Total Downloads (simulated): 2694

Publish Date: 2012 05, Thu

Monthly Totals (Real + Logic):

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Total Views: 5440

Total Downloads: 2694

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