A unified SVPWM realization for minimizing circulating currents of dual three phase machines

Hisham Eldeeb, Christoph Hackl, Mohamed Abdelrahem, Ayman Abdel-Khalik

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Space-vector PWM (SVPWM) gained attention, as a voltage synthesis technique for asymmetrical dual three phase machines (ADTMs); due to its ability to minimize the harmonic content of the output and minimize the switching losses through proper selection of the switching vectors. It has been studied extensively for ADTMs mainly for induction machines with isolated neutrals (2N), such that the inverter is assumed to be the only source capable of inducing harmonics within the stator currents. Thus, by setting the xy subspace voltages to zero, the harmonic content is minimized. However, for dual three phase-permanent magnet synchronous machines (DT-PMSM), the presence of non-sinusoidal rotor flux invokes significant harmonics, mandating non-zero references for the xy plane to ensure proper compensation. This paper invokes the employment of non-zero harmonic references within the SVPWM calculation for the 2N connection, as well as laying out the fundamentals for the single neutral (1N) connection, which is more reliable from fault-tolerance point of view. Also, a simple digital realization is presented, suitable for the 12-, 24-sector SVPWM methods, both continuous and discontinuous modulations. The theoretical findings are corroborated with a 4.4 kW DT-PMSM, demonstrating significant improvement in the total harmonic distortion (THD) of the stator currents.

Original languageEnglish
Title of host publication2017 IEEE 12th International Conference on Power Electronics and Drive Systems, PEDS 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages925-931
Number of pages7
Volume2017-December
ISBN (Electronic)9781509023646
DOIs
Publication statusPublished - 9 Feb 2018
Event12th IEEE International Conference on Power Electronics and Drive Systems, PEDS 2017 - Honolulu, United States
Duration: 12 Dec 201715 Dec 2017

Other

Other12th IEEE International Conference on Power Electronics and Drive Systems, PEDS 2017
CountryUnited States
CityHonolulu
Period12/12/1715/12/17

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Keywords

  • dual three phase inverter
  • Dual three phase IPMSM
  • SVPWM

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Eldeeb, H., Hackl, C., Abdelrahem, M., & Abdel-Khalik, A. (2018). A unified SVPWM realization for minimizing circulating currents of dual three phase machines. In 2017 IEEE 12th International Conference on Power Electronics and Drive Systems, PEDS 2017 (Vol. 2017-December, pp. 925-931). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PEDS.2017.8289127