A radial position control of induction type bearingless motor considering phase delay caused by the rotor squirrel cage

2002 ◽  
Author(s):  
S. Nomura ◽  
A. Chiba ◽  
F. Nakamura ◽  
K. Ikeda ◽  
T. Fukao ◽  
...  
Keyword(s):  
Position Control ◽  
Phase Delay ◽  
Radial Position ◽  
Squirrel Cage ◽  
Bearingless Motor ◽  
Induction Type

scholarly journals Parameter Measurements and Radial Position Control Characteristics of a Permanent Magnet-Type Bearingless Motor Under Loaded Conditions

2000 ◽  
Vol 120 (8-9) ◽  
pp. 1015-1023 ◽  
Author(s):  
Masahide Ooshima ◽  
Satoru Miyazawa ◽  
Akira Chiba ◽  
Fukuzo Nakamura ◽  
Tadashi Fukao
Keyword(s):  
Permanent Magnet ◽  
Position Control ◽  
Radial Position ◽  
Bearingless Motor

scholarly journals A Novel Driving Scheme for Three-Phase Bearingless Induction Machine with Split Winding

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4930
Author(s):  
Francisco Elvis Carvalho Souza ◽  
Werbet Silva ◽  
Andrés Ortiz Salazar ◽  
José Paiva ◽  
Diego Moura ◽  
...  
Keyword(s):  
Control System ◽  
Digital Signal Processor ◽  
Position Control ◽  
Radial Position ◽  
Three Phase ◽  
Control Configuration ◽  
Two Phases ◽  
Split Winding ◽  
Drive And Control ◽  
And Control

In order to reduce the costs of implementing the radial position control system of a three-phase bearingless machine with split winding, this article proposes a driving method that uses only two phases of the system instead of the three-phase traditional one. It reduces from six to four the number of inverter legs, drivers, sensors, and current controllers necessary to drive and control the system. To justify the proposal, this new power and control configuration was applied to a 250 W machine controlled by a digital signal processor (DSP). The results obtained demonstrated that it is possible to carry out the radial position control through two phases, without loss of performance in relation to the conventional three-phase drive and control system.

Influence of Rotor Skew in Induction Type Bearingless Motor

2012 ◽  
Vol 48 (11) ◽  
pp. 4646-4649 ◽  
Author(s):  
Akira Chiba ◽  
Junichi Asama
Keyword(s):  
Bearingless Motor ◽  
Induction Type

Advanced Radial Position Control of a Recording Beam for Super Multilayer Disc with Separated Guide Layer

2013 ◽  
Vol 52 (9S2) ◽  
pp. 09LC03
Author(s):  
Hiroyuki Tanaka ◽  
Kazuo Takahashi ◽  
Masakazu Ogasawara ◽  
Shoji Taniguchi
Keyword(s):  
Position Control ◽  
Radial Position ◽  
Recording Beam

Control of bearingless electric machines dedicated for aviation

2020 ◽  
Vol 92 (1) ◽  
pp. 27-36 ◽  
Author(s):  
Mariusz Żokowski ◽  
Krzysztof Falkowski ◽  
Paulina Kurnyta-Mazurek ◽  
Maciej Henzel
Keyword(s):  
Control System ◽  
Electric Motor ◽  
Position Control ◽  
Experimental Studies ◽  
Electric Machines ◽  
Magnetic Suspension ◽  
Content Type ◽  
Actuation System ◽  
Bearingless Motor ◽  
Rotary Speed

Purpose The paper presents the results of work on control systems of bearingless electric motors. Authors proposed the applications of bearingless electric machines for aircraft actuation system. Suggested solution characterizes novel concept of on-board equipment design such as More Electric Aircraft. Magnetic suspension technology allows elimination of friction force and the negative performance features of classic bearing system. However, to achieve all these purposes appropriately, dedicated control system must be also applied. Design/methodology/approach The development of a control system of bearingless electric machine is presented in detail. Mathematical model and construction of induction bearingless motor are widely discussed. Then, proportional–integral-derivative controller algorithm designing for BEM control system was presented using the well pole placement method. Simulation model of BEM control system with use of Matlab-Simulink software was shown. Finally, experimental studies on laboratory stand were introduced. The paper presents design methodology of conventional and advanced control system of bearingless motor. Findings The presented concept of the bearingless electric machines could be applied in the on-board actuation system. During research, full control system of bearingless electric motor was designed and tested. This system consisted of two subsystems. The first responded for rotary speed stabilization and second one was designed for position control of the rotor in the air gap. Practical implications The presented concept of the bearingless electric machines could be applied in the on-board actuation system. During research, full control system of bearingless electric motor was designed and tested. This system consisted of two subsystems. The first responded for rotary speed stabilization and second one was designed for position control of the rotor in the air gap. Originality/value The idea of active magnetic suspension system will be implemented for aviation on technology readiness level V. The paper presents unique laboratory stand with bearingless electric motor and experimental studies. The stable time responses of designed control system were presented and discussed. In addition, preliminary considerations of advanced control system with robust controller were introduced as well.

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