A Suitable Current Control Strategy for Split-Phase Bearingless Three-Phase Induction Machine

Ribeiro, R.L.A.; Castro, F.E.F.; Salazar, Armando; Maitelli, André Laurindo

doi:10.1109/pesc.2005.1581703

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…The simulation parameters are listed in Table 1. Moreover, Figure 12 shows the simulation results of both the DCLVC strategy introduced in Section 4 and the suitable current control (SCC) method proposed by [21]. The solid lines indicate the former control strategy results and the dashed lines indicate the latter control method results.…”

Section: Analysis Of Simulation Resultsmentioning

confidence: 99%

A Novel Single Winding Structure and Closed Loop Control of the Suspension Force Vector of Bearingless Permanent Magnet Synchronous Motors

Zhu¹,

Yuan²,

Jv³

2016

Energies

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At present, because of their advantages of simple structure, low cost, low power consumption and high efficiency, single winding bearingless permanent magnet synchronous motors (SBPMSMs) have become one of the research hotspots in the bearingless technology field. However, a high motional-electromotive force (EMF) is generated by rotor rotation in the single winding, which already has side-effects on the normal suspension force current, and the suspension force response can be delayed. Because the method of double torque current inverse injection in the symmetrical winding allows the motional-EMFs of the corresponding phase windings to offset each other in the opposite direction, with no adverse effects on original performance, a T-shaped single winding configuration is proposed to realize precisely that effect. In this paper, the analytical expressions of the radial suspension force and torque are deduced and the motional-EMF and performance are analyzed by finite element method using the Ansys-Maxwell software. In addition, a suspension force vector closed loop control strategy is proposed to improve the suspension performance. The complete control strategy of torque and suspension force is designed based on the above motor winding configuration. Finite element analysis (FEA) is used to verify the T-shaped winding structure. The control strategy is demonstrated by software (MATLAB) simulation and an experimental prototype. These results show that the winding structure and the control strategy can achieve the desired effect, improving the radial suspension force.

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Section: Analysis Of Simulation Resultsmentioning

confidence: 99%

A Novel Single Winding Structure and Closed Loop Control of the Suspension Force Vector of Bearingless Permanent Magnet Synchronous Motors

Zhu¹,

Yuan²,

Jv³

2016

Energies

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show abstract

“…In the 2-DOF bearingless induction motors, the motors with two sets of windings, one for generating torque and another for producing the radial suspension forces, are primarily researched. Besides, Ribeiro et al [20] proposed another structure of the bearingless induction motor, in which the 3-phase windings of a 4-pole off-shelf induction motor are splitting into two sets of 3-phase windings and its midpoint is grounded. The corresponding configuration of the split-phase bearingless induction motor drive system is shown in Figure 2, in which there are six windings, namely, windings , , and and windings − , − , and − .…”

Section: Degrees Of Freedom (Dof) Bearingless Induction Motormentioning

confidence: 99%

“…The 5-phase windings have the same structure, and each of them is 72 ∘ displaced in angular space around the motor stator. In the proposed bearingless induction motor, one -plane is used for the motor drive Figure 2: Configuration of the split-phase bearingless induction motor drive system [20].…”

Section: Degrees Of Freedom (Dof) Bearingless Induction Motormentioning

confidence: 99%

Overview of Bearingless Induction Motors

Sun

Chen

Yang

2014

Mathematical Problems in Engineering

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Bearingless induction motors combining functions of both torque generation and noncontact magnetic suspension together have attracted more and more attention in the past decades due to their definite advantages of compactness, simple structure, less maintenance, no wear particles, high rotational speed, and so forth. This paper overviews the key technologies of the bearingless induction motors, with emphasis on motor topologies, mathematical models, and control strategies. Particularly, in the control issues, the vector control, independent control, direct torque control, nonlinear decoupling control, sensorless control, and so forth are investigated. In addition, several possible development trends of the bearingless induction motors are also discussed.

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Practical implementation of dual purpose no voltage drives for bearingless motors

Severson

Gandikota

Mohan

2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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A Suitable Current Control Strategy for Split-Phase Bearingless Three-Phase Induction Machine

Cited by 7 publications

References 8 publications

A Novel Single Winding Structure and Closed Loop Control of the Suspension Force Vector of Bearingless Permanent Magnet Synchronous Motors

A Novel Single Winding Structure and Closed Loop Control of the Suspension Force Vector of Bearingless Permanent Magnet Synchronous Motors

Overview of Bearingless Induction Motors

Practical implementation of dual purpose no voltage drives for bearingless motors

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