DocumentCode :
1209983
Title :
Analysis of multiphase space vector pulse-width modulation based on multiple d-q spaces concept
Author :
Ryu, Hyung-Min ; Kim, Jang-Hwan ; Sul, Seung-Ki
Author_Institution :
Autom. Lab., INTECH Factory Autom. Co., Kyonggi-do, South Korea
Volume :
20
Issue :
6
fYear :
2005
Firstpage :
1364
Lastpage :
1371
Abstract :
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.
Keywords :
PWM invertors; electric motors; machine windings; torque; SVPWM; airgap flux density distribution; concentrated winding; five-phase inverter; multiphase motors; multiphase space vector pulse-width modulation; multiple d-q spaces concept; nonsinusoidal phase voltage; sinusoidal phase voltage; torque per ampere; Air gaps; Functional analysis; Permanent magnet motors; Pulse modulation; Pulse width modulation inverters; Space stations; Space vector pulse width modulation; Synchronous motors; Torque; Zero voltage switching; Multiphase motors; multiphase space vector pulse-width modulation (SVPWM); multiple; nonsinusoidal voltage;
fLanguage :
English
Journal_Title :
Power Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8993
Type :
jour
DOI :
10.1109/TPEL.2005.857551
Filename :
1528610
Link To Document :
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