Permanent magnet motor technology : design and applications

摘要: Preface 1. Introduction 1.1 Permanent magnet versus electromagnetic excitation 1.2 motor drives 1.3 Towards increasing the efficiency 1.4 Classification of permanent electric motors 1.5 Trends in and industry 1.6 Applications 1.7 Mechatronics 1.8 Fundamentals mechanics machines 1.9 Torque balance equation 1.10 Evaluation cost a PM 2. Magnet Materials Circuits 2.1 Demagnetization curve magnetic parameters 2.2 Early history magnets 2.3 Properties 2.4 Approximation demagnetization recoil line 2.5 Operating diagram 2.6 Permeances for main leakage fluxes 2.7 Calculation circuits with 2.8 Mallinson-Halbach array Halbach cylinder 3. Finite Element Analysis 3.1. Gradient, divergence curl 3.2 Biot-Savart, Faraday's, Gauss's laws 3.3 theorem 3.4 Stokes' 3.5 Maxwell's equations 3.6 Magnetic vector potential 3.7 Energy functionals 3.8 element formulation 3.9 Boundary conditions 3.10 Mesh generation 3.11 Forces torques field 3.12 Inductances 3.13 Interactive FEM programs 4. d.c. Commutator Motors 4.1 Construction 4.2 Fundamental 4.3 Sizing procedure 4.4 Armature reaction 4.5 Commutation 4.6 Starting 4.7 Speed control 4.8 Servo 4.9 circuit 4.10 5. Synchronous 5.1 5.2 relationships 5.3 Phasor 5.4 Characteristics 5.5 5.6 Reactances 5.7 Rotor configurations 5.8 Comparison between synchronous induction 5.9 dimensions 5.10 Performance calculation 5.11 Dynamic model 5.12 Noise vibration origin 5.13 6. Brushless 6.1 6.2 brushless 6.3 EMF torque 6.4 Torque-speed characteristics 6.5 Winding losses 6.6 ripple 6.7 position sensing 6.8 Sensorless 6.9 Motion Control 6.10 Universal electromechanical 6.11 Smart 6.12 7. Axial Flux 7.1 Force 7.2 7.3 Double-sided internal disk rotor 7.4 one stator 7.5 Single-sided 7.6 Ironless double-sided 7.7 Multidisk 7.8 8. High Power Density 8.1 Design considerations 8.2 Requirements 8.3 Multiphase 8.4 Fault-tolerant 8.5 Surface salient-pole 8.6 Electromagnetic effects 8.7 Cooling 8.8 cylindrical rotors 8.9 8.10 Transverse flux 8.11 9. 9.1 Why high speed motors? 9.2 Mechanical requirements 9.3 9.4 9.5 Ultra 9.6 10. Special 10.1 Single-phase 10.2 Actuators automotive 10.3 Integrated starter-generator 10.4 Large diameter 10.5 Three-axis 10.6 Slotless 10.7 Tip driven fan 11. Stepping 11.1 Features stepping 11.2 11.3 11.4 Reluctance 11.5 Hybrid 11.6 11.7 transducers 11.8 11.9 Voltage Equations 11.10 11.11 12. Micromotors 12.1 What is micromotor? 12.2 micromotors 12.3 13. Optimization 13.1 Mathematical optimization problem 13.2 Nonlinear programming methods 13.3 Population-based incremental learning 13.4 Response surface methodology 13.5 Modern approach to 14. Maintenance 14.1 Basic 14.2 Reliability 14.3 Failures 14.4 reliability small 14.5 Vibration noise 14.6 Condition monitoring 14.7 Protection 14.8 radio frequency interference 14.9 Lubrication Appendices A. Leakage Inductance a.c. Stator Windings B. Losses Symbols Abbreviations References Index