Observer-based pole placement control for a double conical high-speed bearingless permanent magnet synchronous motor

Adaptive MIMO pole placement control for commissioning of a rotor system with active magnetic bearings

“…This corresponds to an eigenvalue of a spring-damper-mass system with negative stiffness. A similar tuning rule has been applied in [15], [1] for bearingless machines. In this paper, the third-order design polynomial is considered to achieve the desired dynamics for the closed-loop controller…”

“…Second, instead of an innovations-model-based parameter estimation routine, a recursive extended LS (RELS) algorithm [14] is applied to the MIMO system identification to reduce the bias in the estimates. More importantly, instead of placing the poles in the same location, as is typically proposed in the literature [8], [15], a design-polynomial-based approach is considered to achieve more specific control objectives. Finally, the approach presented here is based on the adaptation of the whole control structure, whereas previous papers have mostly focused on the adaptive cross-coupling terms.…”

Principles and Implementation of a Novel Radial-Anti-Disturbance Bearingless Switched Reluctance Motor

“…In order to realize the decoupling of magnetic torque and suspension force in BSRM, scholars at home and abroad tried to study some new types of motor topology [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26]. A single winding hybrid rotor bearingless switched reluctance motor (HRBSRM) was proposed in document [11], whose rotor was composed of annular laminations and fan laminations in the axial direction.…”

“…In addition, the literature [22][23][24] has also studied and explored the bearingless switched reluctance motor from various angles. Literature [23][24] studied the conical bearingless switched reluctance motor, which reduces the number of stator and rotor, and correspondingly reduced the resources of current sensors, power devices and controllers. However, the coupling between windings was serious and complex, and the difficulty of modeling and control system design increased.…”

Control System Commissioning of Fully Levitated Bearingless Machine

“…In addition, a common factor in all these publications is that they apply PID-based position controllers. To the authors' knowledge, only the model-based controller has been addressed in Messager and Binder (2016) for machines of the horizontal dual bearingless motor type. Another approach based on a linear-quadratic regulator (LQR) controller for a bearingless motor has been introduced in Kauss et al (2008).…”