Low-loss three-phase frequency conversion using a TDM-PWM technique |
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| Authors: | Sid Ahmed SAI Excell PS |
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| Affiliation: | University of Bradford, School of Electrical & Electronic Engineering, Bradford, UK; |
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| Abstract: | A strategy for the realisation of a product-modulation frequency conversion technique is presented. For maximum efficiency and spectral purity, a pulse-width modulation (PWM) circuit is used. The addition of pulse-width-modulated signals from the three input phases to each of the three output phases is accomplished by time-division multiplexing (TDM). The need for the product modulator to accommodate multiplication by negative numbers is eliminated by a modification to the basic equations. |
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