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A Fast Digital 3D-SVPWM Algorithm for Four-Leg Converter
Abstract:
The three-phase four-leg converter can be obtained by adding a bridge into the traditional three-phase three-leg converter. The average mathematical model of three-phase four-leg converter is described in this paper. The three-dimensional space vector PWM (3D-SVPWM) is analyzed. For simplifying the modulation, a fast digital SVPWM algorithm which eliminates coordinate transformation and saves calculating time was proposed. The feasibility of the proposed modulation technique is verified by computer simulation. These results show that the proposed fast digital 3D-SVPWM technique can be easily implemented without conventional computational burden.
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Pages:
494-497
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Online since:
March 2014
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© 2014 Trans Tech Publications Ltd. All Rights Reserved
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