Implementation and Experimental Validation of a Real-Time Discontinuous PWM Technique for VSI Fed IM Drives

1
Senthilkumar P
Senthilkumar P
2
N.P.Subramaniam
N.P.Subramaniam
1 PRIST UNIVERSITY

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Implementation and Experimental Validation of a Real-Time Discontinuous PWM Technique for VSI Fed IM Drives Banner
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Adjustable speed drive system requires variable voltage and frequency supply which is invariably obtained from a three-phase voltage source inverter (VSI). A number of Pulse Width Modulation (PWM) schemes are used to obtain variable voltage and frequency supply from an inverter. The most widely used PWM schemes for a three-phase VSI are carrier-based sinusoidal PWM and space vector PWM (SVPWM). This paper develops discontinuous PWM (DPWM) techniques for a voltage source inverter (VSI). Performance is evaluated in terms of total harmonic distortion (THD) in the output phase voltages. A significant reduction in switching losses is observed by adopting the proposed PWM schemes. The simulation and experimental results are provided to validate the concept.

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No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

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No ethics committee approval was required for this article type.

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Senthilkumar P. 2014. \u201cImplementation and Experimental Validation of a Real-Time Discontinuous PWM Technique for VSI Fed IM Drives\u201d. Global Journal of Research in Engineering - F: Electrical & Electronic GJRE-F Volume 14 (GJRE Volume 14 Issue F8): .

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Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

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October 9, 2014

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English

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Adjustable speed drive system requires variable voltage and frequency supply which is invariably obtained from a three-phase voltage source inverter (VSI). A number of Pulse Width Modulation (PWM) schemes are used to obtain variable voltage and frequency supply from an inverter. The most widely used PWM schemes for a three-phase VSI are carrier-based sinusoidal PWM and space vector PWM (SVPWM). This paper develops discontinuous PWM (DPWM) techniques for a voltage source inverter (VSI). Performance is evaluated in terms of total harmonic distortion (THD) in the output phase voltages. A significant reduction in switching losses is observed by adopting the proposed PWM schemes. The simulation and experimental results are provided to validate the concept.

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Implementation and Experimental Validation of a Real-Time Discontinuous PWM Technique for VSI Fed IM Drives

Senthilkumar P
Senthilkumar P PRIST UNIVERSITY
N.P.Subramaniam
N.P.Subramaniam

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