Title :
Simulation Analysis of a Novel Multiphase SVPWM Strategy
Author :
Xue, Shan ; Wen, Xuhui
Author_Institution :
Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing
Abstract :
In a multiphase drive system fed by a VSI, very large harmonic currents can be observed if conventional SVPWM is used due to the small impedance in some subspaces such as z1-z2 subspace. In this paper a novel multiphase SVPWM strategy is presented. Its objective is to synthesize the d-q subspace voltage vectors to satisfy the machine´s control requirements and make the resultant voltage vectors on other subspace to be zero, at the same time to minimize the switching losses. A five-phase PMSM drive system is used as a practical example and experimental results prove its validity
Keywords :
PWM invertors; losses; permanent magnet motors; synchronous motor drives; VSI; d-q subspace voltage vectors; five-phase PMSM drive; multiphase SVPWM strategy; multiphase drive system; switching losses; z1-z2 subspace; Analytical models; Control system synthesis; Equations; Equivalent circuits; Machine control; Reluctance motors; Space vector pulse width modulation; Stators; Switching loss; Zero voltage switching; equivalent circuit; five-phase PMSM; harmonics; multiphase SVPWM; subspace;
Conference_Titel :
Power Electronics and Drives Systems, 2005. PEDS 2005. International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
0-7803-9296-5
DOI :
10.1109/PEDS.2005.1619786
