Simulation analysis of two novel multiphase SVPWM strategies

Author

Xue, Shan ; Wen, Xuhui

Author_Institution

Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing, China

fYear

2005

fDate

14-17 Dec. 2005

Firstpage

1337

Lastpage

1342

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. Since an n-phase VSI has 2ⁿ voltage vectors, there is a lot of choice to construct a resultant voltage vector, which not only supplies the required voltage on d-q subspace but also makes the projected voltage on other subspaces to be zero. Based on this idea, two novel multiphase SVPWM strategies are presented in this paper. A five-phase PMSM drive system is used to explain these schemes. Simulations verify the validity of them.

Keywords

PWM invertors; harmonic analysis; permanent magnet motors; synchronous motor drives; d-q subspace; multiphase drive system; multiphase space vector PWM strategy; permanent magnet synchronous motor drives; resultant voltage vector; voltage source inverter; Analytical models; Circuit simulation; Equations; Equivalent circuits; Impedance; Power system reliability; Space vector pulse width modulation; Stators; Switching loss; Zero voltage switching; equivalent circuit; five-phase PMSM; harmonics; multiphase SVPWM; subspace;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Technology, 2005. ICIT 2005. IEEE International Conference on

Print_ISBN

0-7803-9484-4

Type

conf

DOI

10.1109/ICIT.2005.1600843

Filename

1600843