A dual‐phase‐conducted type bearingless switched reluctance flywheel motor with hybrid outer rotor

Abstract

A novel dual‐phase‐conducted type bearingless switched reluctance flywheel motor is proposed, which has a hybrid outer rotor comprising circular segment and scalloped lamination segment, and only one set of winding is placed on each stator pole. In order to drive the flywheel to accelerate or slow down, two phases of windings in this motor conduct simultaneously. One phase provides radial suspension force, and the other phase provides electromagnetic torque. There exits satisfying decoupling between torque and suspension force. With the circular segment of the rotor, the continuity and stability of radial force can be enhanced. Finite element analysis results confirm the feasibility of the theoretical scheme.

Decoupling Characteristics and Torque Analytical Model of Sharing-Suspension-Windings Bearingless Switched Reluctance Motor Considering Flux-Linkage Saturation

“…Scholars have laid a g foundation for more than 30 years of research on bearingless switched relucta machines. At present, all kinds of motor structures have achieved preliminary suspen operation in a laboratory environment [6][7][8][9][10][11][12][13]. In the research process of m optimization design and control strategy, the torque model based on flux-link saturation is a very important research basis and premise.…”

“…Scholars have laid a good foundation for more than 30 years of research on bearingless switched reluctance machines. At present, all kinds of motor structures have achieved preliminary suspension operation in a laboratory environment [6][7][8][9][10][11][12][13].…”