Article : [ART398]

Info : REPONSE 32, le 06/04/2003.

Titre : Microcontroller-based apparatus for control of three-phase APWM and SPWM AC chopper, 1997.

Cité dans : [DIV393]  Recherche sur les SINGLE PHASE AC CHOPPER, mars 2003.

Source : International Journal of Electronics (Nov. 1997) vol.83, no.5, p.717-29. 10 refs.
Published by: Taylor & Francis
Price: CCCC 0020-7217/97/$12.00
CODEN : IJELA2
ISSN : 0020-7217
SICI : 0020-7217(199711)83:5L.717:MBAC;1-V
Document_Type : Journal
Treatment_Code : New Development; Practical
Info : Country of Publication : United Kingdom
Language : English
Stockage :
Switches :
Power :
Software :

Abstract :
A novel, intelligent and flexible microcontroller-based apparatus is described to control single/three-phase symmetrical PWM
(SPWM) or asymmetrical PWM (APWM) AC chopper, which offers a superior performance. The optimized PWM techniques
improve the input power factor, eliminate the harmonics up to a specified order and also enable linear control of the fundamental
component of the output voltage and current. The SPWM or APWM switching patterns at the specified phase angle of output
fundamental voltage are obtained by the Newton-Raphson method and are implemented by the microcontroller. Through digital
simulation several characteristics are investigated and compared. A prototype of the control apparatus has been built and tested.
Practical verification of the theoretical predictions is presented to confirm the capabilities of the new apparatus.

Accession_Number : 1997:5748393 INSPEC
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