Results 21 to 30 of about 2,162 (218)
IET Electric Power Applications, Volume 17, Issue 5, Page 656-669, May 2023., 2023 Abstract In this paper, a strategy of integrating direct‐drive turbine compressors with high‐speed permanent magnet external rotor motors is used to improve the problems of large footprint, low efficiency and high maintenance costs. The rotor of the motor will vibrate under the action of radial electromagnetic force when rotating, and under the action ...
XiaoYuan Teng +4 more
wiley +1 more source
IEEE Open Journal of Industry Applications, 2020 An ideal pole number combination of motor and suspension windings is essential for bearingless motors. In this study, the performance of a high-speed, high-power buried permanent magnet bearingless motor using several pole combinations is compared.
Zongwei Liu +3 more
doaj +1 more source
Biotechnology Progress, Volume 39, Issue 2, March/April 2023., 2023 Abstract Robust cell retention devices are key to successful cell culture perfusion. Currently, tangential flow filtration (TFF) and alternating tangential flow filtration (ATF) are most commonly used for this purpose. TFF, however, suffers from poor fouling mitigation, which leads to high filtration resistance and product retention, and ATF suffers ...
Maria E. Weinberger +2 more
wiley +1 more source
Chemie Ingenieur Technik, Volume 94, Issue 12, Page 1936-1943, December 2022., 2022 The cell separation process is one of the key elements in biopharmaceutical productions. In the last years, some new devices were launched by different manufacturers. In this work, the novel single‐use disk stack separator kytero 500 from GEA was successfully used for the separation of antibody producing Chinese hamster ovary cells. Abstract Single‐use
Vivian Ott +8 more
wiley +1 more source
Super‐spiral sliding mode controller design for single‐winding bearingless switched reluctance motor
IET Electric Power Applications, Volume 16, Issue 12, Page 1492-1501, December 2022., 2022 Abstract The strong coupling effect between the torque system and the suspension system of the single‐winding bearingless switched reluctance motor (SWBSRM) would result in continuous interference to the system and bring difficulties to the design of the control system.
Kai Xie +5 more
wiley +1 more source
IET Power Electronics, Volume 15, Issue 13, Page 1249-1263, 14 October 2022., 2022 Abstract The performance of flywheel battery is affected by the vibration and friction of traditional mechanical bearing. A novel kind of bearingless brushless direct current machine (BBLDCM) with the hybrid capabilities of electrical machine and suspension is suitable for flywheel battery which reduces the losses and improves the power quality.
Yichen Liu, Huangqiu Zhu, Bo Xu
wiley +1 more source
IET Electric Power Applications, Volume 16, Issue 8, Page 912-925, August 2022., 2022 Abstract The doubly fed induction generator is commonly used in commercial wind turbines because of its simplicity and robustness; it is a wound rotor induction machine. It has a relatively small airgap which makes it more vulnerable to unbalanced magnetic pull.
Ahmad A. Salah +2 more
wiley +1 more source
Overview of Bearingless Induction Motors
Mathematical Problems in Engineering, 2014 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.
Xiaodong Sun, Long Chen, Zebin Yang
openaire +2 more sources
Self-Sensing Hysteresis-Type Bearingless Motor
, 2022 Bearingless motors use a single stator assembly to apply torque and magnetic suspension forces on the rotor, making these machines compact with frictionless operation and thus well suited to high-speed applications. One major challenge that prevents wide usage of bearingless motors is the need for air-gap position sensors, which are typically expensive.
Homiller, Laura, Zhou, Lei
openaire +4 more sources
Modeling and Realization of a Bearingless Flux-Switching Slice Motor
Actuators, 2017 This work introduces a novel bearingless slice motor design: the bearingless flux-switching slice motor. In contrast to state-of-the-art bearingless slice motors, the rotor in this new design does not include any permanent rotor magnets.
Wolfgang Gruber, Karlo Radman
doaj +1 more source