Minimum Torque Dip Pole Transition in Variable Phase-Pole Machines With Voltage Limitation
2025 (English)In: IEEE transactions on energy conversion, ISSN 0885-8969, E-ISSN 1558-0059, Vol. 40, no 2, p. 1411-1421Article in journal (Refereed) Published
Abstract [en]
Induction machine-based multiphase electrical machines combine the robustness and reliability of well-known induction machines with the benefits of additional degrees of freedom, such as potential higher torque density and true fault tolerance. The subcategory of variable phase-pole machines allows extending the operational torque and speed range with the same voltage and current limits by changing the number of magnetic poles through control without hardware reconfiguration. Maintaining the torque throughout the operation is vital for many applications. The question of maintaining torque during a pole transition still needs to be answered, especially concerning the electric limitations. This paper's proposed pole transition strategy minimizes the torque dip during the pole transition. Field weakening is added to the control scheme to accommodate the voltage limitation. Experimentally controlled, loaded, and scheduled pole transitions demonstrate the capabilities of the proposed strategy with and without voltage limitation.
Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE) , 2025. Vol. 40, no 2, p. 1411-1421
Keywords [en]
Torque, Harmonic analysis, Stators, Stator windings, Energy conversion, Windings, Voltage control, Inverters, Aerospace electronics, Vectors, Field-oriented control, multiphase electric machines, pole transition, variable phase-pole machine
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:kth:diva-366160DOI: 10.1109/TEC.2024.3489225ISI: 001494793800017Scopus ID: 2-s2.0-85208383659OAI: oai:DiVA.org:kth-366160DiVA, id: diva2:1985900
Note
QC 20250728
2025-07-282025-07-282025-07-28Bibliographically approved