Principle and Modeling of a Novel Moving Coil Linear-Rotary Electromagnetic Actuator

This paper presents a novel electromagnetic actuator that adopts an air-core coil mover to deliver decoupled linear and rotary motions. It uses light-weight moving coil to achieve high speed and dynamic response, and single-phase Lorentz-force driving scheme to realize direct and noncommutation actuation. To overcome the low thrust force of such driving scheme, unique magnetic circuits are used to enhance the thrust force and torque of the proposed actuator. Closed-form analytical solutions for modeling the magnetic field within the coil operating regions of these unique magnetic circuits are presented together with the complete thermal analyses. A prototype was developed and it delivers 10 mm stroke and 90° angular displacement. Using commercially available drivers, it achieved a high throughput of 8000 units/h with 20 μm, and 0.66° tracking accuracy.

[1]  D. Howe,et al.  Reduction of cogging force in slotless linear permanent magnet motors , 1997 .

[2]  Jianfeng Liu,et al.  Control of Suspending Force in Novel Permanent-Magnet-Biased Bearingless Switched Reluctance Motor , 2015, IEEE Transactions on Industrial Electronics.

[3]  Yunkai Huang,et al.  Analytical Magnetic Field Analysis and Prediction of Cogging Force and Torque of a Linear and Rotary Permanent Magnet Actuator , 2011, IEEE Transactions on Magnetics.

[4]  Akira Chiba,et al.  Proposal and Analysis of a Novel Single-Drive Bearingless Motor , 2013, IEEE Transactions on Industrial Electronics.

[5]  Yasutaka Fujimoto,et al.  Development and Analysis of a High Thrust Force Direct-Drive Linear Actuator , 2009, IEEE Transactions on Industrial Electronics.

[6]  Yasutaka Fujimoto,et al.  Direct-Drive Position Control of a Spiral Motor as a Monoarticular Actuator , 2014, IEEE Transactions on Industrial Electronics.

[7]  Johann W. Kolar,et al.  Slotless Bearingless Disk Drive for High-Speed and High-Purity Applications , 2014, IEEE Transactions on Industrial Electronics.

[8]  Mei-Yung Chen,et al.  A New Design of a Submicropositioner Utilizing Electromagnetic Actuators and Flexure Mechanism , 2010, IEEE Transactions on Industrial Electronics.

[9]  Si-Lu Chen,et al.  Toward Comprehensive Modeling and Large-Angle Tracking Control of a Limited-Angle Torque Actuator With Cylindrical Halbach , 2016, IEEE/ASME Transactions on Mechatronics.

[10]  Wei Hua,et al.  Influence of Leading Design Parameters on the Force Performance of a Complementary and Modular Linear Flux-Switching Permanent-Magnet Motor , 2014, IEEE Transactions on Industrial Electronics.

[11]  E. Furlani.  Permanent Magnet and Electromechanical Devices: Materials, Analysis, and Applications , 2001 .

[12]  Mauro Carpita,et al.  Multiphase Active Way Linear Motor: Proof-of-Concept Prototype , 2012, IEEE Transactions on Industrial Electronics.

[13]  Gianmario Pellegrino,et al.  End Effects in Linear Tubular Motors and Compensated Position Sensorless Control Based on Pulsating Voltage Injection , 2011, IEEE Transactions on Industrial Electronics.

[14]  Rong-Jong Wai,et al.  Real-Time PID Control Strategy for Maglev Transportation System via Particle Swarm Optimization , 2011, IEEE Transactions on Industrial Electronics.

[15]  G. R. Bindu,et al.  A Novel Slotless Halbach-Array Permanent-Magnet Brushless DC Motor for Spacecraft Applications , 2012, IEEE Transactions on Industrial Electronics.

[16]  Nicola Bianchi,et al.  Tubular linear permanent magnet motors: an overall comparison , 2002 .

[17]  D. Howe,et al.  Direct-Drive Rotary-Linear Electromechanical Actuation System for Control of Gearshifts in Automated Transmissions , 2007, 2007 IEEE Vehicle Power and Propulsion Conference.

[18]  Kenji Suzuki,et al.  Driving Method of Permanent-Magnet Linear Synchronous Motor With the Stationary Discontinuous Armature for Long-Distance Transportation System , 2012, IEEE Transactions on Industrial Electronics.

[19]  Liang Yan,et al.  Armature Reaction Field and Inductance of Coreless Moving-Coil Tubular Linear Machine , 2014, IEEE Transactions on Industrial Electronics.

[20]  Koen J Meessen,et al.  Modeling and Experimental Verification of a Tubular Actuator for 20-g Acceleration in a Pick-and-Place Application , 2010, IEEE Transactions on Industry Applications.

[21]  Ricardo Martinez-Botas,et al.  Electromagnetic Actuator Design Analysis Using a Two-Stage Optimization Method With Coarse–Fine Model Output Space Mapping , 2014, IEEE Transactions on Industrial Electronics.

[22]  Ebrahim Afjei,et al.  New Double-Layer-per-Phase Isolated Switched Reluctance Motor: Concept, Numerical Analysis, and Experimental Confirmation , 2012, IEEE Transactions on Industrial Electronics.

[23]  Johannes J H Paulides,et al.  Three-Dimensional Magnetic Field Modeling of a Cylindrical Halbach Array , 2010, IEEE Transactions on Magnetics.

[24]  Yangmin Li,et al.  Optimal Design, Fabrication, and Control of an $XY$ Micropositioning Stage Driven by Electromagnetic Actuators , 2013, IEEE Transactions on Industrial Electronics.

[25]  Yue Yuan,et al.  3-D Analytical Linear Force and Rotary Torque Analysis of Linear and Rotary Permanent Magnet Actuator , 2013, IEEE Transactions on Magnetics.