Analysis of multiphase space vector pulse-width modulation based on multiple d-q spaces concept

Autor: Jang-Hwan Kim, Seung-Ki Sul, Hyung-Min Ryu
Rok vydání: 2005
Předmět:
Zdroj: IEEE Transactions on Power Electronics. 20:1364-1371
ISSN: 1941-0107
0885-8993
DOI: 10.1109/tpel.2005.857551
Popis: Multiphase motors are usually designed to have the concentrated winding and nonsinusoidal airgap flux density distribution in order to maximize the torque per ampere. This means that the phase voltage of a multiphase motor has the nonsinusoidal waveform. Accordingly, the conventional analysis on a multiphase space vector pulse-width modulation (SVPWM), which is confined to a sinusoidal phase voltage, should be extended to a nonsinusoidal phase voltage. In this paper, based on a multiple d-q spaces concept a novel analysis on a multiphase SVPWM to synthesize an arbitrary nonsinusoidal phase voltage is proposed. Throughout this paper, a five-phase inverter is used as a practical example. The basic concepts can be easily extended to an n-phase inverter.
Databáze: OpenAIRE