Results 161 to 170 of about 2,728 (206)

Design of Double Staggered Parallel Bearingless Motor Drive System

IEEE transactions on power electronics, 2023
To make bearingless motors (BMs) more competitive, it is imperative to reduce the cost while ensuring high performance. In this article, the driving system of the BM is optimized from the perspectives of the inverter topology and the control strategy.
Xucong Bao, Xiaolin Wang, Q. Ding, Tengrui Shi   +3 more
semanticscholar   +1 more source

Radial Displacement Sensorless Control at Low Speed Based on High-Frequency Voltage Injection for Bearingless Permanent Magnet Vernier Motor With Special Winding

IEEE Transactions on Transportation Electrification
To ensure stable suspension of rotor for bearingless motor, the rotor displacement information as a feedback signal must be obtained accurately. Traditional mechanical sensors increase the system cost and volume and are sensitive to environmental ...
Zhenghao Lei, Xuan Wu, Ting Wu, Xu Yu, Yanrui Mi, Shoudao Huang   +5 more
semanticscholar   +1 more source

Rethinking the Design of Non-Salient Bearingless Permanent Magnet Machines

IEEE transactions on industry applications, 2023
Bearingless motors are electric machines capable of simultaneously creating both torque and suspension forces. A detailed investigation into the underlying physics governing magnetic force creation in these machines is conducted in this paper, resulting ...
Bharat Ramadas, E. Severson
semanticscholar   +1 more source

Rotor Eccentricity Impact on Electromagnetic Behavior in Combined Winding Bearingless Motors Towards Displacement Self-Sensing

IEEE transactions on energy conversion
Levitation control of bearingless motors requires rotor displacement sensors. Recent research has explored self-sensing (sensorless) control which enables removing these sensors, but only for separated windings.
Nathan P. Petersen, E. Severson
semanticscholar   +1 more source

Study on the influence of dual-winding optimization design on the torque and suspension performance of bearingless motor

International Journal of Emerging Electric Power Systems, 2023
The bearingless motor with dual-winding embedded in the stator can not only produce electromagnetic torque and can also produce suspension force to support the rotor suspension, and the design of the dual-winding will directly affect the torque and ...
H. Qiu, Kun He
semanticscholar   +1 more source

Multiharmonic Force Vector Model for Bearingless Electric Motors

IEEE transactions on industry applications
This paper proposes and develops a new analytic bearingless machine model that incorporates multiple airgap harmonic field interactions and has several advantages.
A. Khamitov, E. Severson
semanticscholar   +1 more source

Displacement Self-Sensing Control of Permanent Magnet Assisted Bearingless Synchronous Reluctance Motor Based on Least Square Support Vector Machine Optimized by Improved NSGA-II

IEEE transactions on industrial electronics (1982. Print)
In order to solve the problems of low integration, low reliability, and high cost caused by mechanical sensors used in bearingless synchronous reluctance motor (PMa-BSynRM) control system, a novel displacement self-sensing control method using a least ...
Huangqiu Zhu, Yijian Shi
semanticscholar   +1 more source

Reduction of Force Error Angles in 28-Pole/24-Slot Homopolar-Consequent-Pole Bearingless Motor with Irregular Distribution of Stator Slots

European Conference on Cognitive Ergonomics, 2023
A homopolar consequent-pole bearingless motor generates radial suspension forces and rotating torque. This machine requires low force error angle for stable magnetic suspension.
H. Sugimoto, Kazuki Hashimoto, Suguru Sato   +2 more
semanticscholar   +1 more source

Novel bearingless centrifugal blood pump

4th IEEE International Conference on Power Electronics and Drive Systems. IEEE PEDS 2001 - Indonesia. Proceedings (Cat. No.01TH8594), 2005
A new directly-driven centrifugal blood pump has been designed and constructed. It is based on a special form of permanent magnet brushless DC motor whose rotor is combined with an impeller and encased in a sealed pump housing. To prevent potential thromboembolism and clotting, the rotor does not have any mechanical bearing. Instead, it is magnetically
S. Wan, K.J. Tseng, W.K. Chan
openaire   +1 more source

Eccentricity Compensation for Bearingless Motor Based on the Tracking of the Minimum Antieccentric Levitation Current

IEEE transactions on industrial electronics (1982. Print)
The error of the radial displacement sensor causes a deviation between the rotor levitation position of the bearingless motor (BM) and the geometric center of the stator.
Xucong Bao, Xiaolin Wang, Bingyang Han, Q. Ding, Y. Zhang   +4 more
semanticscholar   +1 more source