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Document Type : Latin Dissertation
Language of Document : English
Record Number : 149646
Doc. No : ET21438
Main Entry : Andres J. Diaz-Castillo
Title Proper : A New Overmodulation Method Based on a Proportional Reference Signal Generator
Note : This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract : In order to obtain the maximum fundamental output voltage from a three phaseinverter, a transition from PWM to six-step mode needs to be done. Because ofthe nonlinear behavior of this overmodulation range, different methods have beenproposed to linearize it. Those methods use complex equations and look-up tables,limiting their application to powerful microprocessors with considerable amount ofmemory. In this thesis an overmodulation method is proposed, which has a perfectoutput linearity and requires only linear equations for implementation. This methodcan be applied to both sinusoidal and space vector PWM. A new method to calculatethe modulation index from the instantaneous phase values is also proposed. Mathe-matical analysis, simulations, real microprocessor implementation, and a stand-alonetested for theQ1 PC1 bus cardBoth these projects mere sofixare des elopment efforts tonards contributing to dlfferentaspects of Roboucs and lZ1echatronics projects m the Controls and Roboucs Group..
Subject : Electericl tess
: برق
electronic file name : TL44601.pdf
Title and statement of responsibility and : A New Overmodulation Method Based on a Proportional Reference Signal Generator [Thesis]
 
 
 
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