Electric Machines: Steady State and Performance with MATLAB(R)

ISBN-13: 9780367374716 / Angielski / Twarda / 2021 / 388 str.

Ion Boldea; Lucian Tutelea

Opis

The book covers circuit modeling characteristics and performance characteristics under steady state, testing techniques and preliminary electromagnetic-thermic dimensioning with lots of solved numerical examples and special cases to illustrate new such electric machines with strong industrialization potential.

Spis treści

1 Introduction1.1 Electric Energy and Electric Machines1.2 Basic Types of Transformers and Electric Machines1.3 Losses and Efficiency1.4 Physical Limitations and Ratings1.5 Nameplate Ratings1.6 Methods of Analysis1.7 State of the Art and Perspective171.8 Summary1.9 Proposed ProblemsReferences 2 Electric Transformers2.1 AC Coil with Magnetic Core and Transformer Principles2.2 Magnetic Materials in EMs and Their Losses2.3 Electric Conductors and Their Skin Effects2.4 Components of Single- and 3-Phase Transformers2.5 Flux Linkages and Inductances of Single-Phase Transformers2.6 Circuit Equations of Single-Phase Transformers with Core Losses2.7 Steady State and Equivalent Circuit2.8 No-Load Steady State (I2 = 0)/Lab 2.12.9 Steady-State Short-Circuit Mode/Lab 2.22.10 Single-Phase Transformers: Steady-State Operation on Load/Lab 2.32.11 Three-Phase Transformers: Phase Connections2.12 Particulars of 3-Phase Transformers on No Load2.13 General Equations of 3-Phase Transformers2.13.1 Inductance Measurement/Lab 2.42.14 Unbalanced Load Steady State in 3-Phase Transformers/Lab 2.52.15 Paralleling 3-Phase Transformers2.16 Transients in Transformers2.17 Instrument Transformers2.18 Autotransformers2.19 Transformers and Inductances for Power Electronics2.20 Preliminary Transformer Design (Sizing) by Example2.21 Summary2.22 Proposed ProblemsReferences 3 Energy Conversion and Types of Electric Machines3.1 Energy Conversion in Electric Machines3.2 Electromagnetic Torque3.3 Passive Rotor Electric Machines3.4 Active Rotor Electric Machines3.5 Fix Magnetic Field (Brush–Commutator) Electric Machines3.6 Traveling Field Electric Machines3.7 Types of Linear Electric Machines3.8 Flux – modulation electric machines: a new breed3.9 Summary3.10 Proposed ProblemsReferences 4 Brush–Commutator Machines: Steady State4.1 Introduction4.1.1 Stator and Rotor Construction Elements4.2 Brush–Commutator Armature Windings4.3 The Brush–Commutator4.4 Airgap Flux Density of Stator Excitation MMF4.5 No-Load Magnetization Curve by Example4.6 PM Airgap Flux Density and Armature Reaction by Example4.7 The Commutation Process4.8 EMF4.9 Equivalent Circuit and Excitation Connections4.10 DC Brush Motor/Generator with Separate (or PM)4.11 DC Brush PM Motor Steady-State and Speed Control4.12 DC Brush Series Motor/Lab 4.34.13 AC Brush Series Universal Motor4.14 Testing Brush–Commutator Machines/Lab 4.44.15 Preliminary Design of a DC Brush PM Automotive Small Motor by Example4.16 Summary4.17 Proposed ProblemsReferences 5 Induction Machines: Steady State5.1 Introduction: Applications and Topologies5.2 Construction Elements5.3 AC Distributed Windings5.4 Induction Machine Inductances5.5 Rotor Cage Reduction to the Stator5.6 Wound Rotor Reduction to the Stator5.7 Three-Phase Induction Machine Circuit Equations5.8 Symmetric Steady State of 3-Phase IMs5.9 Ideal No-Load Operation/Lab 5.15.10 Zero Speed Operation (S = 1)/Lab 5.25.11 No-Load Motor Operation (Free Shaft)/Lab 5.35.12 Motor Operation on Load (1 > S > 0)/Lab 5.45.13 Generating at Power Grid (n > f1/p1,S < 0)/Lab 5.55.14 Autonomous Generator Mode (S < 0)/Lab 5.65.15 Electromagnetic Torque and Motor Characteristics5.16 Deep-Bar and Dual-Cage Rotors5.17 Parasitic (Space Harmonics) Torques5.18 Starting Methods5.19 Speed Control Methods5.20 Unbalanced Supply Voltages5.21 One Stator Phase Open by Example/ Lab 5.75.22 One Rotor Phase Open5.23 Capacitor Split-Phase Induction Motors/ Lab 5.85.24 Linear Induction Motors5.24.1 End and Edge Effects in LIMs5.25 Regenerative and Virtual Load Testing of IMs/Lab 5.75.26 Preliminary Electromagnetic IM Design by Example5.27 Dual stator windings induction generators (DWIG)5.28 Summary5.28 Proposed ProblemsReferences 6 Synchronous Machines: Steady State6.1 Introduction: Applications and Topologies6.2 Stator (Armature) Windings for SMs6.3 SM Rotors: Airgap Flux Density Distribution and EMF6.4 Two-Reaction Principle via Generator Mode6.5 Armature Reaction and Magnetization Reactances, Xdm and Xqm6.6 Symmetric Steady-State Equations and Phasor Diagram6.7 Autonomous Synchronous Generators6.8 Synchronous Generators at Power Grid/Lab 6.46.9 Basic Static- and Dynamic-Stability Concepts6.10 Unbalanced Load Steady State of SGs/Lab 6.56.11 Large Synchronous Motors6.12 PM Synchronous Motors: Steady State6.13 Load Torque Pulsations Handling by Synchronous Motors/Generators6.14 Asynchronous Starting of SMs and Their Self-Synchronization to Power Grid6.15 Single-Phase and Split-Phase Capacitor PM Synchronous Motors6.16 Preliminary Design Methodology of a 3-Phase small automotive PMSM by Example6.17 Single phase PM autonomous a.c. generator with step – capacitor voltage control: a case study6.18 Summary6.19 Proposed ProblemsReferences