Limits, Modeling and Design of High-Speed Permanent Magnet Machines

Transcription

1 Springer Theses Limits, Modeling and Design of High-Speed Permanent Magnet Machines Bearbeitet von Aleksandar Borisavljevic 1. Auflage Buch. xxii, 218 S. Hardcover ISBN Format (B x L): 15,5 x 23,5 cm Gewicht: 526 g Weitere Fachgebiete > Technik > Maschinenbau Allgemein > Triebwerkstechnik, Energieübertragung Zu Leseprobe schnell und portofrei erhältlich bei Die Online-Fachbuchhandlung beck-shop.de ist spezialisiert auf Fachbücher, insbesondere Recht, Steuern und Wirtschaft. Im Sortiment finden Sie alle Medien (Bücher, Zeitschriften, CDs, ebooks, etc.) aller Verlage. Ergänzt wird das Programm durch Services wie Neuerscheinungsdienst oder Zusammenstellungen von Büchern zu Sonderpreisen. Der Shop führt mehr als 8 Millionen Produkte.

2 Contents 1 Introduction Machinery for Micromilling High-Speed Spindle Drive Problem Description Thesis Objectives Test Setup: A High-Speed PM Motor in Aerostatic Bearings Thesis Outline References High-Speed PM Machines: Applications, Trends and Limits Introduction PM Machines: Overview Defining High-Speed Survey of High-Speed Machines Speed Limits of PM Machines Limits and Rated Machine Parameters Conclusions References Electromagnetic Modeling of Slotless PM Machines Introduction Model Geometry and Properties Modeling of the Magnetic Field Field of the Permanent Magnet Armature Field Combined Field Derived Quantities No-Load Voltage Torque and Power xiii

3 xiv Contents Phase Inductance Unbalanced Magnetic Pull and Machine Stiffness Losses in the Machine Stator Core Losses Copper Losses Air-Friction Loss Rotor Loss Conclusions References Structural Aspects of PM Rotors Introduction Stress in a Rotating Cylinder Isotropic Modeling Orthotropic Modeling Mechanical Stress in a PM Rotor Test Rotor: Analytical Models Test Rotor: 2D FE Model Test Rotor: Results Comparison Structural Limits and Optimization of PM Rotors Conclusions References Rotordynamical Aspects of High-Speed Electrical Machines Introduction Vibration Modes Threshold of Instability Stability of the Jeffcott Rotor with Damping Jeffcott Rotor with Non-Synchronous Damping Critical Speeds Calculation Hard-Mounted Shaft General Case: Bearings with a Finite Stiffness Rigid-Rotor Dynamics Rigid Critical Speeds Unbalance Response Conclusions References Bearings for High-Speed Machines Introduction Mechanical Bearings Air (Fluid) Bearings Active Magnetic Bearings Conclusions References

4 Contents xv 7 Design of the High-Speed-Spindle Motor Introduction New Spindle Concepts Conceptual Design of the Motor Stator Core Conductors Permanent Magnet Magnet Retaining Sleeve Motor Optimization Rotor Shaft Design Electromagnetic Optimization of the Motor Geometry Optimization of Conductors FEM Design Evaluation D FEM: Motor Parameters D FEM: No-Load Voltage and Phase Inductance D FEM: Conductor Eddy-Current Loss Design of the Rotor Retaining Sleeve Material Considerations: PPS-Bonded NdFeB Magnet Material Considerations: Carbon-Fiber Composite Sleeve Optimization Final Design Conclusions References Control of the Synchronous PM Motor Introduction Stability Analysis Stabilization Control I/f Control Method Controller Implementation and Experimental Results Description of the Test Setup I/f Controller Implementation Experimental Results Conclusions References Experimental Results Introduction Practical Setup Stator Assembly Rotor Assembly Air-Bearings Test Setup

5 xvi Contents High-Frequency Inverter Motor Phase Resistance and Inductance Phase Resistance Phase Inductance Speed-Decay Tests Locked-Rotor Tests Motor Operation and Performance Conclusions References Conclusions and Recommendations Models Presented in the Thesis Speed Limits of Permanent Magnet Machines Design Evaluation Thesis Contributions Recommendations Appendix A Appendix B Appendix C Biography