TY  - BOOK
AU  - Pyrhonen ,Juha
AU  - Jokinen ,Tapani
AU  - Hrabovcova ,Valeria
TI  - Design of Rotating Electrical Machines
SN  - 9781118701621
AV  - TK2331 -- .P97 2014eb 
U1  - 621.31/042 
PY  - 2013///
CY  - Somerset
PB  - Wiley
KW  - Electric generators -- Design and construction
KW  - Electric machinery -- Design and construction
KW  - Electric motors -- Design and construction
KW  - Rotational motion
KW  - Electronic books
N1  - Intro -- DESIGN OF ROTATING ELECTRICAL MACHINES -- Contents -- Preface -- About the Authors -- Abbreviations and Symbols -- 1 Principal Laws and Methods in Electrical Machine Design -- 1.1 Electromagnetic Principles -- 1.2 Numerical Solution -- 1.3 The Most Common Principles Applied to Analytic Calculation -- 1.3.1 Flux Line Diagrams -- 1.3.2 Flux Diagrams for Current-Carrying Areas -- 1.4 Application of the Principle of Virtual Work in the Determination of Force and Torque -- 1.5 Maxwell's Stress Tensor -- Radial and Tangential Stress -- 1.6 Self-Inductance and Mutual Inductance -- 1.7 Per Unit Values -- 1.8 Phasor Diagrams -- Bibliography -- 2 Windings of Electrical Machines -- 2.1 Basic Principles -- 2.1.1 Salient-Pole Windings -- 2.1.2 Slot Windings -- 2.1.3 End Windings -- 2.2 Phase Windings -- 2.3 Three-Phase Integral Slot Stator Winding -- 2.4 Voltage Phasor Diagram and Winding Factor -- 2.5 Winding Analysis -- 2.6 Short Pitching -- 2.7 Current Linkage of a Slot Winding -- 2.8 Poly-Phase Fractional Slot Windings -- 2.9 Phase Systems and Zones of Windings -- 2.9.1 Phase Systems -- 2.9.2 Zones of Windings -- 2.10 Symmetry Conditions -- 2.10.1 Symmetrical Fractional Slot Windings -- 2.11 Base Windings -- 2.11.1 First-Grade Fractional Slot Base Windings -- 2.11.2 Second-Grade Fractional Slot Base Windings -- 2.11.3 Integral Slot Base Windings -- 2.12 Fractional Slot Windings -- 2.12.1 Single-Layer Fractional Slot Windings -- 2.12.2 Double-Layer Fractional Slot Windings -- 2.13 Single- and Double-Phase Windings -- 2.14 Windings Permitting a Varying Number of Poles -- 2.15 Commutator Windings -- 2.15.1 Lap Winding Principles -- 2.15.2 Wave Winding Principles -- 2.15.3 Commutator Winding Examples, Balancing Connectors -- 2.15.4 AC Commutator Windings -- 2.15.5 Current Linkage of the Commutator Winding and Armature Reaction; 2.16 Compensating Windings and Commutating Poles -- 2.17 Rotor Windings of Asynchronous Machines -- 2.18 Damper Windings -- Bibliography -- 3 Design of Magnetic Circuits -- 3.1 Air Gap and its Magnetic Voltage -- 3.1.1 Air Gap and Carter Factor -- 3.1.2 Air Gaps of a Salient-Pole Machine -- 3.1.3 Air Gap of Nonsalient-Pole Machine -- 3.2 Equivalent Core Length -- 3.3 Magnetic Voltage of a Tooth and a Salient Pole -- 3.3.1 Magnetic Voltage of a Tooth -- 3.3.2 Magnetic Voltage of a Salient Pole -- 3.4 Magnetic Voltage of Stator and Rotor Yokes -- 3.5 No-Load Curve, Equivalent Air Gap and Magnetizing Current of the Machine -- 3.6 Magnetic Materials of a Rotating Machine -- 3.6.1 Characteristics of Ferromagnetic Materials -- 3.6.2 Losses in Iron Circuits -- 3.7 Permanent Magnets in Rotating Machines -- 3.7.1 History and Development of Permanent Magnets -- 3.7.2 Characteristics of Permanent Magnet Materials -- 3.7.3 Operating Point of a Permanent Magnet Circuit -- 3.7.4 Demagnetization of Permanent Magnets -- 3.7.5 Application of Permanent Magnets in Electrical Machines -- 3.8 Assembly of Iron Stacks -- Bibliography -- 4 Inductances -- 4.1 Magnetizing Inductance -- 4.2 Leakage Inductances -- 4.2.1 Division of Leakage Flux Components -- 4.3 Calculation of Flux Leakage -- 4.3.1 Skewing Factor and Skew Leakage Inductance -- 4.3.2 Air-Gap Leakage Inductance -- 4.3.3 Slot Leakage Inductance -- 4.3.4 Tooth Tip Leakage Inductance -- 4.3.5 End Winding Leakage Inductance -- Bibliography -- 5 Resistances -- 5.1 DC Resistance -- 5.2 Influence of Skin Effect on Resistance -- 5.2.1 Analytical Calculation of Resistance Factor -- 5.2.2 Critical Conductor Height in Slot -- 5.2.3 Methods to Limit the Skin Effect -- 5.2.4 Inductance Factor -- 5.2.5 Calculation of Skin Effect in Slots Using Circuit Analysis -- 5.2.6 Double-Sided Skin Effect -- Bibliography; 6 Design Process of Rotating Electrical Machines -- 6.1 Eco-Design Principles of Rotating Electrical Machines -- 6.2 Design Process of a Rotating Electrical Machine -- 6.2.1 Starting Values -- 6.2.2 Main Dimensions -- 6.2.3 Air Gap -- 6.2.4 Winding Selection -- 6.2.5 Air-Gap Flux Density -- 6.2.6 The No-Load Flux of an Electrical Machine and the Number of Winding Turns -- 6.2.7 New Air-Gap Flux Density -- 6.2.8 Determination of Tooth Width -- 6.2.9 Determination of Slot Dimensions -- 6.2.10 Determination of the Magnetic Voltages of the Air Gap, and the Stator and Rotor Teeth -- 6.2.11 Determination of New Saturation Factor -- 6.2.12 Determination of Stator and Rotor Yoke Heights and Magnetic Voltages -- 6.2.13 Magnetizing Winding -- 6.2.14 Determination of Stator Outer and Rotor Inner Diameter -- 6.2.15 Calculation of Machine Characteristics -- Bibliography -- 7 Properties of Rotating Electrical Machines -- 7.1 Machine Size, Speed, Different Loadings and Efficiency -- 7.1.1 Machine Size and Speed -- 7.1.2 Mechanical Loadability -- 7.1.3 Electrical Loadability -- 7.1.4 Magnetic Loadability -- 7.1.5 Efficiency -- 7.2 Asynchronous Motor -- 7.2.1 Current Linkage and Torque Production of an Asynchronous Machine -- 7.2.2 Impedance and Current Linkage of a Cage Winding -- 7.2.3 Characteristics of an Induction Machine -- 7.2.4 Equivalent Circuit Taking Asynchronous Torques and Harmonics into Account -- 7.2.5 Synchronous Torques -- 7.2.6 Selection of the Slot Number of a Cage Winding -- 7.2.7 Construction of an Induction Motor -- 7.2.8 Cooling and Duty Types -- 7.2.9 Examples of the Parameters of Three-Phase Industrial Induction Motors -- 7.2.10 Asynchronous Generator -- 7.2.11 Wound Rotor Induction Machine -- 7.2.12 Asynchronous Motor Supplied with Single-Phase Current -- 7.3 Synchronous Machines; 7.3.1 Inductances of a Synchronous Machine in Synchronous Operation and in Transients -- 7.3.2 Loaded Synchronous Machine and Load Angle Equation -- 7.3.3 RMS Value Phasor Diagrams of a Synchronous Machine -- 7.3.4 No-Load Curve and Short-Circuit Test -- 7.3.5 Asynchronous Drive -- 7.3.6 Asymmetric-Load-Caused Damper Currents -- 7.3.7 Shift of Damper Bar Slotting from the Symmetry Axis of the Pole -- 7.3.8 V Curve of a Synchronous Machine -- 7.3.9 Excitation Methods of a Synchronous Machine -- 7.3.10 Permanent Magnet Synchronous Machines -- 7.3.11 Synchronous Reluctance Machines -- 7.4 DC Machines -- 7.4.1 Configuration of DC Machines -- 7.4.2 Operation and Voltage of a DC Machine -- 7.4.3 Armature Reaction of a DC machine and Machine Design -- 7.4.4 Commutation -- 7.5 Doubly Salient Reluctance Machine -- 7.5.1 Operating Principle of a Doubly Salient Reluctance Machine -- 7.5.2 Torque of an SR Machine -- 7.5.3 Operation of an SR Machine -- 7.5.4 Basic Terminology, Phase Number and Dimensioning of an SR Machine -- 7.5.5 Control Systems of an SR Motor -- 7.5.6 Future Scenarios for SR Machines -- Bibliography -- 8 Insulation of Electrical Machines -- 8.1 Insulation of Rotating Electrical Machines -- 8.2 Impregnation Varnishes and Resins -- 8.3 Dimensioning of an Insulation -- 8.4 Electrical Reactions Ageing Insulation -- 8.5 Practical Insulation Constructions -- 8.5.1 Slot Insulations of Low-Voltage Machines -- 8.5.2 Coil End Insulations of Low-Voltage Machines -- 8.5.3 Pole Winding Insulations -- 8.5.4 Low-Voltage Machine Impregnation -- 8.5.5 Insulation of High-Voltage Machines -- 8.6 Condition Monitoring of Insulation -- 8.7 Insulation in Frequency Converter Drives -- Bibliography -- 9 Losses and Heat Transfer -- 9.1 Losses -- 9.1.1 Resistive Losses -- 9.1.2 Iron Losses -- 9.1.3 Additional Losses -- 9.1.4 Mechanical Losses -- 9.1.5 Decreasing Losses; 9.1.6 Economics of Energy Savings -- 9.2 Heat Removal -- 9.2.1 Conduction -- 9.2.2 Radiation -- 9.2.3 Convection -- 9.3 Thermal Equivalent Circuit -- 9.3.1 Analogy between Electrical and Thermal Quantities -- 9.3.2 Average Thermal Conductivity of a Winding -- 9.3.3 Thermal Equivalent Circuit of an Electrical Machine -- 9.3.4 Modeling of Coolant Flow -- 9.3.5 Solution of Equivalent Circuit -- 9.3.6 Cooling Flow Rate -- Bibliography -- Appendix A -- Appendix B -- Index -- EULA
N2  - In one complete volume, this essential reference presents an in-depth overview of the theoretical principles and techniques of electrical machine design. This timely new edition offers up-to-date theory and guidelines for the design of electrical machines, taking into account recent advances in permanent magnet machines as well as synchronous reluctance machines. New coverage includes: Brand new material on the ecological impact of the motors, covering the eco-design principles of rotating electrical machines An expanded section on the design of permanent magnet synchronous machines, now reporting on the design of tooth-coil, high-torque permanent magnet machines and their properties Large updates and new material on synchronous reluctance machines, air-gap inductance, losses in and resistivity of permanent magnets (PM), operating point of loaded PM circuit, PM machine design, and minimizing the losses in electrical machines> End-of-chapter exercises and new direct design examples with methods and solutions to real design problems> A supplementary website hosts two machine design examples created with MATHCAD: rotor surface magnet permanent magnet machine and squirrel cage induction machine calculations. Also a MATLAB code for optimizing the design of an induction motor is provided Outlining a step-by-step sequence of machine design, this book enables electrical machine designers to design rotating electrical machines. With a thorough treatment of all existing and emerging technologies in the field, it is a useful manual for professionals working in the diagnosis of electrical machines and drives. A rigorous introduction to the theoretical principles and techniques makes the book invaluable to senior electrical engineering students, postgraduates, researchers and university lecturers involved in electrical drives technology and electromechanical; energy conversion
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