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A modified sector based space vector PWM technique for five-phase drives

Citace: [] DURÁN, M., GLASBERGER, T., DUJIČ, D., LEVI, E., PEROUTKA, Z. A modified sector based space vector PWM technique for five-phase drives. IEEJ Transactions on Electrical and Electronic Engineering, 2009, roč. 4, č. 4, s. 453-464. ISSN: 1931-4973
Druh: ČLÁNEK
Jazyk publikace: eng
Anglický název: A modified sector based space vector PWM technique for five-phase drives
Rok vydání: 2009
Název zdroje: JOHN WILEY & SONS INC
Autoři: Dr. Mario Durán , Ing. Tomáš Glasberger , Dr. Dražen Dujič , Prof. Emil Levi , Doc. Ing. Zdeněk Peroutka Ph.D.
Abstrakt CZ: Tento článek kombinuje multidimenzionální vektorovou PWM s offline optimalizací spínacích kombinací vektorů. Cílem je vygenerování požadovaného vektoru napětí i v případě nesinusového nebo nesymetrického požadovaného výstupního napětí motoru. Navržená sektorová modulace umožňuje implementaci multidimenzionální PWM v reálném čase. Funkčnost navržených algoirmů modulace byla ověřena simulacemi i experimenty na laboratorním prototypu pětifázového pohonu.
Abstrakt EN: Space vector PWM (SVPWM) is a popular and well-known technique for standard three-phase drives, which has been extended recently to multi-phase voltage source inverters (VSIs). Several SVPWM techniques, which utilize the principle of vector space decomposition (VSD), have been developed for various operating modes. The VSD approach inherently relies on considerations in two-dimensional (2-D) subspaces, while SVPWM for a multi-phase VSI is in essence a multidimensional problem. Hence, an alternative approach to SVPWM, which is based on the direct multi-dimensional space consideration in the space vector selection process rather than on space vector selection in 2-D subspaces obtained by vector space decomposition, has been recently introduced. Good performance has been identified, but the method is complex and difficult for the real-time implementation. This article therefore combines multi-dimensional SVPWM approach with offline calculations to achieve required output voltage generation under non-sinusoidal and/or unbalanced voltage requirements, which represent the most challenging operating conditions from the point of view of the vector selection for PWM. As a consequence, the implementation becomes rather simple in standard DSPs. The performance of the algorithm is verified by simulation and experimentation.
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