| Description |
1 online resource |
| Contents |
Cover -- Title Page -- Copyright -- Contents -- Preface -- About the Authors -- About the Companion Website -- Chapter 1 Introduction -- 1.1 Review of Historical Development of Electrical Machines -- 1.2 Limitations of Classical Electrical Machine Theories -- 1.2.1 Fragmentation of Electrical Machine Theories -- 1.2.2 Limitations in Analysis of Operating Principles -- 1.2.3 Lack of Uniformity in Performance Analysis -- 1.3 Overview of Magnetic Field Modulation Machines and their Theories -- 1.4 Scope and Organization of the Book -- References -- Chapter 2 Airgap Magnetic Field Modulation Phenomena in Electrical Machines -- 2.1 Traditional Electrical Machines -- 2.1.1 Brushed Direct Current Machines -- 2.1.2 Induction Machines -- 2.1.3 Synchronous Machines -- 2.2 Field Modulation Magnetic Gears -- 2.2.1 Construction and Operating Principle -- 2.2.2 Airgap Magnetic Field Modulation Behaviors -- 2.2.3 Other MG Types -- 2.3 Magnetically Geared Machines -- 2.3.1 Evolution of MGMs -- 2.3.2 Airgap Magnetic Field Modulation Behaviors -- 2.4 PM Vernier Machine -- 2.4.1 Machine Construction -- 2.4.2 Airgap Magnetic Field Modulation Behaviors -- 2.5 Linear PMV Machine -- 2.5.1 Machine Construction -- 2.5.2 Airgap Magnetic Field Modulation Behaviors -- 2.6 Flux-switching PM Machine -- 2.6.1 Magnetic Field Modulation Mechanism of PM Field -- 2.6.2 Magnetic Field Modulation Mechanism of Armature Field -- 2.7 Doubly-Fed Machines -- 2.7.1 Classification and Operating Principles -- 2.7.2 Cascaded Type -- 2.7.3 Modulation Type -- 2.7.4 Commonalities and Differences of Existing Brushless Doubly-fed Machines -- 2.8 Uniformity of Machine Operating Principles -- References -- Chapter 3 Three Key Elements Model for Electrical Machines -- 3.1 Introduction -- 3.2 Classical Winding Function Theory and Its Limitations -- 3.2.1 Winding MMF |
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3.2.2 Classical Winding Function Theory -- 3.2.3 Limitations of Classical Winding Function Theory -- 3.3 Three Key Elements -- 3.3.1 Source of Excitation -- 3.3.2 Modulator -- 3.3.3 Filter -- 3.4 Mathematical Representation of Three Key Elements -- 3.4.1 Source MMF -- 3.4.2 Modulation Operator -- 3.4.3 Filter -- 3.4.4 Unified Airgap Model -- 3.4.5 Duality Between Electrical Machines and Switching Power Converters -- 3.5 Torque Decomposition -- 3.5.1 General Torque Equation -- 3.5.2 Wound-Field Salient-Pole SM -- 3.5.3 SynRM -- 3.5.4 Squirrel-Cage IM -- 3.5.5 BDFRM -- 3.5.6 BDFIM -- 3.5.7 FSPM Machine -- 3.5.8 PMV Machine -- 3.5.9 Axial-Flux PMV Machine -- References -- Chapter 4 Analysis of Magnetic Field Modulation Behaviors -- 4.1 Introduction -- 4.2 Magnetic Field Modulation Behaviors and Torque Components -- 4.2.1 Asynchronous and Synchronous Modulation Behaviors -- 4.2.2 Asynchronous and Synchronous Torque Components -- 4.3 Characterization of Modulation Behaviors in Typical Machine Topologies -- 4.3.1 Brushed DCM -- 4.3.2 Wound-Field Salient-Pole SM -- 4.3.3 Wound-Field Non-Salient-Pole SM and Slip-Ring Doubly-Fed Induction Machine -- 4.3.4 Squirrel Cage IM and BDFIM -- 4.3.5 Synchronous Reluctance Machine and Brushless Doubly-Fed Reluctance Machine -- 4.3.6 Surface-Mounted PMSM and FRPM Machine -- 4.3.7 Interior PMSM and FSPM Machine -- 4.3.8 Switched Reluctance Machine and Vernier Machine -- 4.3.9 Magnetically-Geared Machine and PM Vernier Machine -- 4.4 Torque Composition of Typical Machine Topologies -- 4.4.1 Case Study I - BDFIM -- 4.4.2 Case Study II - BDFM with a Hybrid Rotor -- 4.4.3 Case Study III - FSPM Machine -- 4.5 Magnetic Field Modulation Behaviors of Various Modulators -- 4.5.1 Salient Reluctance Pole Modulator -- 4.5.2 Multilayer Flux Barrier Modulator -- 4.5.3 Short-Circuited Coil Modulator |
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6.6.2 Winding Consistency and Complementarity -- 6.6.3 Fundamental Electromagnetic Performance -- 6.7 Dual-Rotor Magnetically-Geared Power Split Machine -- 6.7.1 Machine Construction and Operating Principle -- 6.7.2 Modes of Operation -- 6.7.3 Asymmetry in Magnetic Circuits -- 6.7.4 Complementary MGPSM and Experimental Validation -- 6.8 Stator Field-Excitation HTS Machines -- 6.8.1 Stator Field-Excitation HTS Flux-Switching Machine -- 6.8.2 Double-Stator Field Modulation Superconducting Excitation Machine -- 6.8.3 Technical Challenges and Outlook of Field Modulation HTS Machines -- 6.9 Brushless Doubly-Fed Reluctance Machine with an Asymmetrical Composite Modulator -- 6.9.1 Phase Shift Phenomenon of Modulated Harmonics -- 6.9.2 Asymmetrical Composite Modulator -- 6.9.3 Experimental Verification -- References -- Chapter 7 Other Applications of General Airgap Field Modulation Theory -- 7.1 Introduction -- 7.2 Analysis of Radial Forces in Brushless Doubly-fed Machines -- 7.2.1 Electromagnetic Vibration and Noise in Electrical Machines -- 7.2.2 Analysis of Radial Forces -- 7.2.3 Calculation of Radial Forces -- 7.2.4 Pole-Pair Combinations Without UMP -- 7.3 Design of Suspension Windings for Bearingless Homopolar and Consequent Pole PM Machines -- 7.3.1 Design Principle of Pole-Changing Windings -- 7.3.2 Solution 1: Coil Span y & -- equals -- 4 -- 7.3.3 Solution 2: Coil Span y & -- equals -- 5 -- 7.4 Loss Calculation -- 7.4.1 Stray Load Loss Calculation for IMs -- 7.4.2 Computationally Efficient Core Loss Calculation for FSPM Machines Supplied by PWM Inverters -- 7.5 Optimization of Salient Reluctance Pole Modulators for Typical Field Modulation Electrical Machines -- 7.5.1 Typical Salient Reluctance Poles -- 7.5.2 Optimization for Magnetically-Geared PM Machine -- 7.5.3 Optimization for FRPM Machine -- 7.5.4 General Guidelines |
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7.6 Airgap-Harmonic-Oriented Design Optimization Methodology -- 7.6.1 Airgap-Harmonic-Oriented Design Optimization Concept -- 7.6.2 Sensitivity Analysis -- 7.6.3 Multi-Objective Optimization -- 7.6.4 Optimization Results and Experimental Validation -- References -- Appendix A Derivation of Modulation Operators -- A.1 Derivation of Modulation Operator for Short-circuited Coils -- A.2 Derivation of Modulation Operator for Salient Reluctance Poles -- A.3 Derivation of Modulation Operator for Multilayer Flux Barriers -- Appendix B Magnetic Force of Current-Carrying Conductors in Airgap and in Slots -- References -- Appendix C Methods for Force and Torque Calculation -- C.1 Maxwell Stress Tensor Method -- C.2 Principle of Virtual Work -- C.2.1 Torque Derived from Magnetic Stored Energy and Virtual Displacement -- C.2.2 Torque Derived from Co-energy and Virtual Displacement -- References -- Index -- EULA |
| Summary |
Introducing a new theory for electrical machines Air-gap magnetic field modulation phenomena have been widely observed in electrical machines. This book serves as the first English-language overview of these phenomena, as well as developing systematically for the first time a general theory by which to understand and research them. This theory not only serves to unify analysis of disparate electrical machines, from conventional DC machines, induction machines, and synchronous machines to unconventional flux-switching permanent magnet machines, Vernier machines, doubly-fed brushless machines etc., but also paves the way towards the creation of new electrical machine topologies. General Airgap Field Modulation Theory for Electrical Machines includes both overviews of key concepts in electrical machine engineering and in-depth specialized analysis of the novel theory itself. It works through the applications of the developed theory before proceeding to both qualitative analysis of the theory's operating principles and quantitative analysis of its parameters. Readers will also find: The collective experience of four award-winning authors with long records of international scholarship on this subject Three separate chapters covering the principal applications of the theory, with detailed examples Discussion of potential innovations made possible by this theory General Airgap Field Modulation Theory for Electrical Machines is an essential introduction to this theory for postgraduates, researchers, and electrical engineers |
| Notes |
Description based on online resource; title from digital title page (viewed on December 27, 2022) |
| Subject |
Electric machinery.
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Magnetics.
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Magnetic fields.
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magnetic field.
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Electric machinery
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Magnetic fields
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Magnetics
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| Form |
Electronic book
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| Author |
Han, Peng, author
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Du, Yi, author
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Wen, Honghui, author
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| ISBN |
9781119900375 |
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1119900379 |
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9781119900351 |
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1119900352 |
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1119900360 |
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9781119900368 |
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