Naslov
Nonlinear Control of a Bearingless Flux-Switching Slice Motor with Combined Winding System

Autori
Turk, Nikola ; Bulic, Neven ; Gruber, Wolfgang

Izvornik
IEEE/ASME Transactions on Mechatronics (1083-4435) 1 (2019); 1-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Bearingless Motor , nonlinear control , Fluxswitching drive

Sažetak
The nonlinear radial forces relationship regarding phase currents and rotor angle demands a nonlinear control structure for bearingless motors. Most state-of-the-art control algorithms of bearingless motors are based on the assumption of linear current to force/torque relationship, and only the nonlinear relationship to the rotor angle is taken into account. However, in some types of bearingless motors, especially in motors with reluctance-type rotor, suspension forces are quadratic functions of the phase currents, which means that, in addition to linear terms, quadratic terms also contribute significantly to force generation. In this paper a novel control structure is presented, which allows controlling a bearingless motors featuring significant nonlinear current to force/torque relationship. DSP implementable solution was found by numeric solution followed by the 2nd order Taylor approximation. To check the functionality the suggested control structure was implemented with a bearingless flux-switching 12/10 motor.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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