Helical motion tubular induction motor

Alwash, J.H.H.; Mohssen, A.D.; Abdi, A.S.

doi:10.1109/tec.2003.815826

Cited by 21 publications

(10 citation statements)

References 9 publications

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“…where Z in is the input surface impedance at the current sheet and Z r+1 and Z r are the surface impedances looking outwards and inwards at the current sheet. Substituting for Z r and Z r+1 using (26) and (27) respectively, and rearranging the terms yields , , , Thus the input surface impedance at the current sheet has been determined. This means that all field components can be found by making use of this and (27), (22), (23).…”

Section: Field Calculations At the Region Boundariesmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of Double and Single Sided Induction Heating Systems by Layer Theory Approach

Qaseer¹

2010

JEMAA

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The iterative layer theory approach is applied to the analysis of double sided and single sided induction heating systems for continuous heating of thin metal strips. The excitation is transverse to the direction of strip motion and can be three phase or single phase. Nonmagnetic as well as ferromagnetic strips are employed. The important system parameters, namely, strip resistance, reactance, induced power and electromagnetic force are introduced. Accuracy of the method is verified with measurement of practical induction heating system together with comparison to numerical and analytical methods

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Section: Field Calculations At the Region Boundariesmentioning

confidence: 99%

“…The layer theory approach has been mainly used for the analysis of linear, tubular linear and helical motion induction motors as given in [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Double and Single Sided Induction Heating Systems by Layer Theory Approach

Qaseer¹

2010

JEMAA

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“…Various types of a 2-DOF motor capable of producing rotary and linear motion have been presented in articles [25]- [36]. There are stepper motors [25] [26], induction motors [27] [28], reluc- tance motors [29] [30], permanent-magnet motors [31]- [34], and piezoelectric actuators [35] [36]. All these 2-DOF motors are radial-gap motors.…”

Section: Introductionmentioning

confidence: 99%

Control of an Interior Permanent-Magnet Screw Motor With Power-Saving Axial-Gap Displacement Adjustment

Fujimoto

Suenaga

Koyama

2014

IEEE Trans. Ind. Electron.

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This paper proposes position and force control of a screw motor with power-saving axial-gap displacement adjustment. The motor has a helical-shape mover, which moves in a helical-shape stator without contact. Due to the fabrication process, the actual helical shapes of the mover and the stator are not completely uniform and the air-gap length between the mover and the stator slightly changes depending on the mover rotation angle. The d-axis current remains a finite value and copper loss arises even when the mover is located at the center between the stator cores. A power-saving axial-gap displacement adjustment method is proposed to solve this problem. The proposed control is experimentally verified.

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“…On the other hand, various types of a helical-motion motor capable of producing rotary, linear, or helical motion have been proposed in [50]- [56]. There are induction-type [50]- [53], reluctance-type [54], and permanent-magnet-type [55]- [56] motors. Another variation is a 1-DOF actuator with rotary type stepping motor drive system applied to a mover with double-helical PM [57].…”

Section: Introductionmentioning

confidence: 99%

Development, Analysis, and Experimental Realization of a Direct-Drive Helical Motor

Smadi

Omori

Fujimoto

2012

IEEE Trans. Ind. Electron.

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Safety issue is great concern for rehabilitation robots that are expected to contribute to future aging society. Appropriate compliance is required for their joints. However, combination of servomotors and high-ratio gears, such as harmonic gears makes the joint of robots nonbackdrivable. The nonbackdrivability causes lack of adaptability and safety. On the other hand, Conventional direct-drive systems, including linear motors, are relatively big for such application. This paper presents development and analysis of compact high backdrivable direct-drive linear actuator. The motor consists of a helical structure stator and mover. The mover does not contact the stator and moves helically in the stator under a proper magnetic levitation control. Thus, the motor realizes direct drive motion without mechanical gears. Decoupling control is proposed and integrated with disturbance observer to achieve robustness against model uncertainties and input disturbance. The main contribution of this paper is to experimentally realize the direct-drive feature of the helical motor.

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Helical motion tubular induction motor

Cited by 21 publications

References 9 publications

Analysis of Double and Single Sided Induction Heating Systems by Layer Theory Approach

Analysis of Double and Single Sided Induction Heating Systems by Layer Theory Approach

Control of an Interior Permanent-Magnet Screw Motor With Power-Saving Axial-Gap Displacement Adjustment

Development, Analysis, and Experimental Realization of a Direct-Drive Helical Motor

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