{"product_id":"advanced-electric-drives-isbn-9781118485484","title":"Advanced Electric Drives","description":"With nearly two-thirds of global electricity consumed by electric motors, it should come as no surprise that their proper control represents appreciable energy savings. The efficient use of electric drives also has far-reaching applications in such areas as factory automation (robotics), clean transportation (hybrid-electric vehicles), and renewable (wind and solar) energy resource management. \u003ci\u003eAdvanced Electric Drives\u003c\/i\u003e utilizes a physics-based approach to explain the fundamental concepts of modern electric drive control and its operation under dynamic conditions. Author Ned Mohan, a decades-long leader in Electrical Energy Systems (EES) education and research, reveals how the investment of proper controls, advanced MATLAB and Simulink simulations, and careful forethought in the design of energy systems translates to significant savings in energy and dollars. Offering students a fresh alternative to standard mathematical treatments of dq-axis transformation of a-b-c phase quantities, Mohan’s unique physics-based approach “visualizes” a set of representative dq windings along an orthogonal set of axes and then relates their currents and voltages to the a-b-c phase quantities. \u003ci\u003eAdvanced Electric Drives\u003c\/i\u003e is an invaluable resource to facilitate an understanding of the analysis, control, and modelling of electric machines.\u003cbr\u003e \u003cbr\u003e • Gives readers a “physical” picture of electric machines and drives without resorting to mathematical transformations for easy visualization\u003cbr\u003e \u003cbr\u003e • Confirms the physics-based analysis of electric drives mathematically\u003cbr\u003e \u003cbr\u003e • Provides readers with an analysis of electric machines in a way that can be easily interfaced to common power electronic converters and controlled using any control scheme\u003cbr\u003e \u003cbr\u003e • Makes the MATLAB\/Simulink files used in examples available to anyone in an accompanying website\u003cbr\u003e \u003cbr\u003e • Reinforces fundamentals with a variety of discussion questions, concept quizzes, and homework problems  \u003cp\u003ePreface xiii\u003c\/p\u003e \u003cp\u003eNotation xv\u003c\/p\u003e \u003cp\u003e\u003cb\u003e1 Applications: Speed and Torque Control 1\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e1-1 History 1\u003c\/p\u003e \u003cp\u003e1-2 Background 2\u003c\/p\u003e \u003cp\u003e1-3 Types of ac Drives Discussed and the Simulation Software 2\u003c\/p\u003e \u003cp\u003e1-4 Structure of this Textbook 3\u003c\/p\u003e \u003cp\u003e1-5 “Test” Induction Motor 3\u003c\/p\u003e \u003cp\u003e1-6 Summary 4\u003c\/p\u003e \u003cp\u003eReferences 4\u003c\/p\u003e \u003cp\u003eProblems 4\u003c\/p\u003e \u003cp\u003e\u003cb\u003e2 Induction Machine Equations in Phase Quantities: Assisted by Space Vectors 6\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e2-1 Introduction 6\u003c\/p\u003e \u003cp\u003e2-2 Sinusoidally Distributed Stator Windings 6\u003c\/p\u003e \u003cp\u003e2-2-1 Three-Phase, Sinusoidally Distributed Stator Windings 8\u003c\/p\u003e \u003cp\u003e2-3 Stator Inductances (Rotor Open-Circuited) 9\u003c\/p\u003e \u003cp\u003e2-3-1 Stator Single-Phase Magnetizing Inductance \u003ci\u003eL\u003c\/i\u003em,1-phase 9\u003c\/p\u003e \u003cp\u003e2-3-2 Stator Mutual-Inductance \u003ci\u003eL\u003c\/i\u003emutual 11\u003c\/p\u003e \u003cp\u003e2-3-3 Per-Phase Magnetizing-Inductance \u003ci\u003eL\u003c\/i\u003em 12\u003c\/p\u003e \u003cp\u003e2-3-4 Stator-Inductance \u003ci\u003eL\u003c\/i\u003es 12\u003c\/p\u003e \u003cp\u003e2-4 Equivalent Windings in a Squirrel-Cage Rotor 13\u003c\/p\u003e \u003cp\u003e2-4-1 Rotor-Winding Inductances (Stator Open-Circuited) 13\u003c\/p\u003e \u003cp\u003e2-5 Mutual Inductances between the Stator and the Rotor Phase Windings 15\u003c\/p\u003e \u003cp\u003e2-6 Review of Space Vectors 15\u003c\/p\u003e \u003cp\u003e2-6-1 Relationship between Phasors and Space Vectors in Sinusoidal Steady State 17\u003c\/p\u003e \u003cp\u003e2-7 Flux Linkages 18\u003c\/p\u003e \u003cp\u003e2-7-1 Stator Flux Linkage (Rotor Open-Circuited) 18\u003c\/p\u003e \u003cp\u003e2-7-2 Rotor Flux Linkage (Stator Open-Circuited) 19\u003c\/p\u003e \u003cp\u003e2-7-3 Stator and Rotor Flux Linkages (Simultaneous Stator and Rotor Currents) 20\u003c\/p\u003e \u003cp\u003e2-8 Stator and Rotor Voltage Equations in Terms of Space Vectors 21\u003c\/p\u003e \u003cp\u003e2-9 Making the Case for a \u003ci\u003edq\u003c\/i\u003e -Winding Analysis 22\u003c\/p\u003e \u003cp\u003e2-10 Summary 25\u003c\/p\u003e \u003cp\u003eReference 25\u003c\/p\u003e \u003cp\u003eProblems 26\u003c\/p\u003e \u003cp\u003e\u003cb\u003e3 Dynamic Analysis of Induction Machines in Terms of \u003ci\u003edq\u003c\/i\u003e Windings 28\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e3-1 Introduction 28\u003c\/p\u003e \u003cp\u003e3-2 \u003ci\u003edq\u003c\/i\u003e Winding Representation 28\u003c\/p\u003e \u003cp\u003e3-2-1 Stator \u003ci\u003edq\u003c\/i\u003e Winding Representation 29\u003c\/p\u003e \u003cp\u003e3-2-2 Rotor \u003ci\u003edq\u003c\/i\u003e Windings (Along the Same dq-Axes as in the Stator) 31\u003c\/p\u003e \u003cp\u003e3-2-3 Mutual Inductance between \u003ci\u003edq\u003c\/i\u003e Windings on the Stator and the Rotor 32\u003c\/p\u003e \u003cp\u003e3-3 Mathematical Relationships of the \u003ci\u003edq\u003c\/i\u003e Windings (at an Arbitrary Speed \u003ci\u003eω\u003c\/i\u003ed) 33\u003c\/p\u003e \u003cp\u003e3-3-1 Relating \u003ci\u003edq\u003c\/i\u003e Winding Variables to Phase Winding Variables 35\u003c\/p\u003e \u003cp\u003e3-3-2 Flux Linkages of \u003ci\u003edq\u003c\/i\u003e Windings in Terms of Their Currents 36\u003c\/p\u003e \u003cp\u003e3-3-3 \u003ci\u003edq\u003c\/i\u003e Winding Voltage Equations 37\u003c\/p\u003e \u003cp\u003e3-3-4 Obtaining Fluxes and Currents with Voltages as Inputs 40\u003c\/p\u003e \u003cp\u003e3-4 Choice of the \u003ci\u003edq\u003c\/i\u003eWinding Speed \u003ci\u003eω\u003c\/i\u003ed 41\u003c\/p\u003e \u003cp\u003e3-5 Electromagnetic Torque 42\u003c\/p\u003e \u003cp\u003e3-5-1 Torque on the Rotor \u003ci\u003ed\u003c\/i\u003e -Axis Winding 42\u003c\/p\u003e \u003cp\u003e3-5-2 Torque on the Rotor \u003ci\u003eq\u003c\/i\u003e -Axis Winding 43\u003c\/p\u003e \u003cp\u003e3-5-3 Net Electromagnetic Torque \u003ci\u003eT\u003c\/i\u003eem on the Rotor 44\u003c\/p\u003e \u003cp\u003e3-6 Electrodynamics 44\u003c\/p\u003e \u003cp\u003e3-7 \u003ci\u003ed\u003c\/i\u003e- and \u003ci\u003eq\u003c\/i\u003e-Axis Equivalent Circuits 45\u003c\/p\u003e \u003cp\u003e3-8 Relationship between the \u003ci\u003edq\u003c\/i\u003e Windings and the Per-Phase Phasor-Domain Equivalent Circuit in Balanced Sinusoidal Steady State 46\u003c\/p\u003e \u003cp\u003e3-9 Computer Simulation 47\u003c\/p\u003e \u003cp\u003e3-9-1 Calculation of Initial Conditions 48\u003c\/p\u003e \u003cp\u003e3-10 Summary 56\u003c\/p\u003e \u003cp\u003eReference 56\u003c\/p\u003e \u003cp\u003eProblems 57\u003c\/p\u003e \u003cp\u003e\u003cb\u003e4 Vector Control of Induction-Motor Drives: A Qualitative Examination 59\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e4-1 Introduction 59\u003c\/p\u003e \u003cp\u003e4-2 Emulation of dc and Brushless dc Drive Performance 59\u003c\/p\u003e \u003cp\u003e4-2-1 Vector Control of Induction-Motor Drives 61\u003c\/p\u003e \u003cp\u003e4-3 Analogy to a Current-Excited Transformer with a Shorted Secondary 62\u003c\/p\u003e \u003cp\u003e4-3-1 Using the Transformer Equivalent Circuit 65\u003c\/p\u003e \u003cp\u003e4-4 \u003ci\u003ed\u003c\/i\u003e- and \u003ci\u003eq\u003c\/i\u003e -Axis Winding Representation 66\u003c\/p\u003e \u003cp\u003e4-5 Vector Control with \u003ci\u003ed\u003c\/i\u003e-Axis Aligned with the Rotor Flux 67\u003c\/p\u003e \u003cp\u003e4-5-1 Initial Flux Buildup Prior to \u003ci\u003et\u003c\/i\u003e = 0−67\u003c\/p\u003e \u003cp\u003e4-5-2 Step Change in Torque at \u003ci\u003et\u003c\/i\u003e = 0+68\u003c\/p\u003e \u003cp\u003e4-6 Torque, Speed, and Position Control 72\u003c\/p\u003e \u003cp\u003e4-6-1 The Reference Current \u003ci\u003eisq\u003c\/i\u003e \u003ci\u003et\u003c\/i\u003e * ( ) 72\u003c\/p\u003e \u003cp\u003e4-6-2 The Reference Current \u003ci\u003eisd\u003c\/i\u003e \u003ci\u003et \u003c\/i\u003e( ) 73\u003c\/p\u003e \u003cp\u003e4-6-3 Transformation and Inverse-Transformation of Stator Currents 73\u003c\/p\u003e \u003cp\u003e4-6-4 The Estimated Motor Model for Vector Control 74\u003c\/p\u003e \u003cp\u003e4-7 The Power-Processing Unit (PPU) 75\u003c\/p\u003e \u003cp\u003e4-8 Summary 76\u003c\/p\u003e \u003cp\u003eReferences 76\u003c\/p\u003e \u003cp\u003eProblems 77\u003c\/p\u003e \u003cp\u003e\u003cb\u003e5 Mathematical Description of Vector Control in Induction Machines 79\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e5-1 Motor Model with the \u003ci\u003ed\u003c\/i\u003e-Axis Aligned Along the Rotor Flux Linkage λ \u003ci\u003er\u003c\/i\u003e-Axis 79\u003c\/p\u003e \u003cp\u003e5-1-1 Calculation of \u003ci\u003eω\u003c\/i\u003edA 81\u003c\/p\u003e \u003cp\u003e5-1-2 Calculation of \u003ci\u003eT\u003c\/i\u003eem 81\u003c\/p\u003e \u003cp\u003e5-1-3 \u003ci\u003ed\u003c\/i\u003e-Axis Rotor Flux Linkage Dynamics 82\u003c\/p\u003e \u003cp\u003e5-1-4 Motor Model 82\u003c\/p\u003e \u003cp\u003e5-2 Vector Control 84\u003c\/p\u003e \u003cp\u003e5-2-1 Speed and Position Control Loops 86\u003c\/p\u003e \u003cp\u003e5-2-2 Initial Startup 89\u003c\/p\u003e \u003cp\u003e5-2-3 Calculating the Stator Voltages to Be Applied 89\u003c\/p\u003e \u003cp\u003e5-2-4 Designing the PI Controllers 90\u003c\/p\u003e \u003cp\u003e5-3 Summary 95\u003c\/p\u003e \u003cp\u003eReference 95\u003c\/p\u003e \u003cp\u003eProblems 95\u003c\/p\u003e \u003cp\u003e\u003cb\u003e6 Detuning Effects in Induction Motor Vector Control 97\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e6-1 Effect of Detuning Due to Incorrect Rotor Time Constant \u003ci\u003eτ\u003c\/i\u003er 97\u003c\/p\u003e \u003cp\u003e6-2 Steady-State Analysis 101\u003c\/p\u003e \u003cp\u003e6-2-1 Steady-State \u003ci\u003ei\u003c\/i\u003esd \/\u003ci\u003ei\u003c\/i\u003es*\u003ci\u003ed\u003c\/i\u003e 104\u003c\/p\u003e \u003cp\u003e6-2-2 Steady-State \u003ci\u003ei\u003c\/i\u003esq \/\u003ci\u003ei\u003c\/i\u003es*\u003ci\u003eq\u003c\/i\u003e 104\u003c\/p\u003e \u003cp\u003e6-2-3 Steady-State \u003ci\u003eθ\u003c\/i\u003eerr 105\u003c\/p\u003e \u003cp\u003e6-2-4 Steady-State \u003ci\u003eT\u003c\/i\u003eem \/\u003ci\u003eT\u003c\/i\u003ee*\u003ci\u003em\u003c\/i\u003e 106\u003c\/p\u003e \u003cp\u003e6-3 Summary 107\u003c\/p\u003e \u003cp\u003eReferences 107\u003c\/p\u003e \u003cp\u003eProblems 108\u003c\/p\u003e \u003cp\u003e\u003cb\u003e7 Dynamic Analysis of Doubly Fed Induction Generators and Their Vector Control 109\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e7-1 Understanding DFIG Operation 110\u003c\/p\u003e \u003cp\u003e7-2 Dynamic Analysis of DFIG 116\u003c\/p\u003e \u003cp\u003e7-3 Vector Control of DFIG 116\u003c\/p\u003e \u003cp\u003e7-4 Summary 117\u003c\/p\u003e \u003cp\u003eReferences 117\u003c\/p\u003e \u003cp\u003eProblems 117\u003c\/p\u003e \u003cp\u003e\u003cb\u003e8 Space Vector Pulse Width-Modulated (SV-PWM) Inverters 119\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e8-1 Introduction 119\u003c\/p\u003e \u003cp\u003e8-2 Synthesis of Stator Voltage Space Vector vsa 119\u003c\/p\u003e \u003cp\u003e8-3 Computer Simulation of SV-PWM Inverter 124\u003c\/p\u003e \u003cp\u003e8-4 Limit on the Amplitude ˆ\u003ci\u003eV\u003c\/i\u003es of the Stator Voltage Space Vectov sa 125\u003c\/p\u003e \u003cp\u003eSummary 128\u003c\/p\u003e \u003cp\u003eReferences 128\u003c\/p\u003e \u003cp\u003eProblems 129\u003c\/p\u003e \u003cp\u003e\u003cb\u003e9 Direct Torque Control (DTC) and Encoderless Operation of Induction Motor Drives 130\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e9-1 Introduction 130\u003c\/p\u003e \u003cp\u003e9-2 System Overview 130\u003c\/p\u003e \u003cp\u003e9-3 Principle of Encoderless DTC Operation 131\u003c\/p\u003e \u003cp\u003e9-4 Calculation of λ\u003ci\u003es\u003c\/i\u003e, λ \u003ci\u003er\u003c\/i\u003e, \u003ci\u003eT\u003c\/i\u003eem, and \u003ci\u003eω\u003c\/i\u003em 132\u003c\/p\u003e \u003cp\u003e9-4-1 Calculation of the Stator Flux λ \u003ci\u003es\u003c\/i\u003e 132\u003c\/p\u003e \u003cp\u003e9-4-2 Calculation of the Rotor Flux λ \u003ci\u003er\u003c\/i\u003e 133\u003c\/p\u003e \u003cp\u003e9-4-3 Calculation of the Electromagnetic Torque \u003ci\u003eT\u003c\/i\u003eem 134\u003c\/p\u003e \u003cp\u003e9-4-4 Calculation of the Rotor Speed \u003ci\u003eω\u003c\/i\u003em 135\u003c\/p\u003e \u003cp\u003e9-5 Calculation of the Stator Voltage Space Vector 136\u003c\/p\u003e \u003cp\u003e9-6 Direct Torque Control Using \u003ci\u003edq\u003c\/i\u003e-Axes 139\u003c\/p\u003e \u003cp\u003e9-7 Summary 139\u003c\/p\u003e \u003cp\u003eReferences 139\u003c\/p\u003e \u003cp\u003eProblems 139\u003c\/p\u003e \u003cp\u003eAppendix 9-A 140\u003c\/p\u003e \u003cp\u003eDerivation of Torque Expressions 140\u003c\/p\u003e \u003cp\u003e\u003cb\u003e10 Vector Control of Permanent-Magnet Synchronous Motor Drives 143\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e10-1 Introduction 143\u003c\/p\u003e \u003cp\u003e10-2 \u003ci\u003ed-q\u003c\/i\u003e Analysis of Permanent Magnet (Nonsalient-Pole) Synchronous Machines 143\u003c\/p\u003e \u003cp\u003e10-2-1 Flux Linkages 144\u003c\/p\u003e \u003cp\u003e10-2-2 Stator \u003ci\u003edq\u003c\/i\u003e Winding Voltages 144\u003c\/p\u003e \u003cp\u003e10-2-3 Electromagnetic Torque 145\u003c\/p\u003e \u003cp\u003e10-2-4 Electrodynamics 145\u003c\/p\u003e \u003cp\u003e10-2-5 Relationship between the \u003ci\u003edq\u003c\/i\u003e Circuits and the Per-Phase Phasor-Domain Equivalent Circuit in Balanced Sinusoidal Steady State 145\u003c\/p\u003e \u003cp\u003e10-2-6 \u003ci\u003edq\u003c\/i\u003e-Based Dynamic Controller for “Brushless DC” Drives 147\u003c\/p\u003e \u003cp\u003e10-3 Salient-Pole Synchronous Machines 151\u003c\/p\u003e \u003cp\u003e10-3-1 Inductances 152\u003c\/p\u003e \u003cp\u003e10-3-2 Flux Linkages 153\u003c\/p\u003e \u003cp\u003e10-3-3 Winding Voltages 153\u003c\/p\u003e \u003cp\u003e10-3-4 Electromagnetic Torque 154\u003c\/p\u003e \u003cp\u003e10-3-5 \u003ci\u003edq\u003c\/i\u003e-Axis Equivalent Circuits 154\u003c\/p\u003e \u003cp\u003e10-3-6 Space Vector Diagram in Steady State 154\u003c\/p\u003e \u003cp\u003e10-4 Summary 156\u003c\/p\u003e \u003cp\u003eReferences 156\u003c\/p\u003e \u003cp\u003eProblems 156\u003c\/p\u003e \u003cp\u003e\u003cb\u003e11 Switched-Reluctance Motor (SRM) Drives 157\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e11-1 Introduction 157\u003c\/p\u003e \u003cp\u003e11-2 Switched-Reluctance Motor 157\u003c\/p\u003e \u003cp\u003e11-2-1 Electromagnetic Torque \u003ci\u003eT\u003c\/i\u003eem 159\u003c\/p\u003e \u003cp\u003e11-2-2 Induced Back-EMF \u003ci\u003ee\u003c\/i\u003ea 161\u003c\/p\u003e \u003cp\u003e11-3 Instantaneous Waveforms 162\u003c\/p\u003e \u003cp\u003e11-4 Role of Magnetic Saturation 164\u003c\/p\u003e \u003cp\u003e11-5 Power Processing Units for SRM Drives 165\u003c\/p\u003e \u003cp\u003e11-6 Determining the Rotor Position for Encoderles Operation 166\u003c\/p\u003e \u003cp\u003e11-7 Control in Motoring Mode 166\u003c\/p\u003e \u003cp\u003e11-8 Summary 167\u003c\/p\u003e \u003cp\u003eReferences 167\u003c\/p\u003e \u003cp\u003eProblems 167\u003c\/p\u003e \u003cp\u003eIndex 169\u003c\/p\u003e \u003cb\u003eNed Mohan\u003c\/b\u003e is the Oscar A. Schott Professor of Power Electronics at the University of Minnesota. A holder of numerous patents in the field, Mohan is the author of \u003ci\u003efour other books published by Wiley\u003c\/i\u003e, and is a member of the National Academy of Engineering.  With nearly two-thirds of global electricity consumed by electric motors, it should come as no surprise that their proper control represents appreciable energy savings. The efficient use of electric drives also has far-reaching applications in such areas as factory automation (robotics), clean transportation (hybrid-electric vehicles), and renewable (wind and solar) energy resource management. \u003ci\u003eAdvanced Electric Drives\u003c\/i\u003e utilizes a physics-based approach to explain the fundamental concepts of modern electric drive control and its operation under dynamic conditions. Author Ned Mohan, a decades-long leader in Electrical Energy Systems (EES) education and research, reveals how the investment of proper controls, advanced MATLAB and Simulink simulations, and careful forethought in the design of energy systems translates to significant savings in energy and dollars. Offering students a fresh alternative to standard mathematical treatments of dq-axis transformation of a-b-c phase quantities, Mohan’s unique physics-based approach “visualizes” a set of representative dq windings along an orthogonal set of axes and then relates their currents and voltages to the a-b-c phase quantities. \u003ci\u003eAdvanced Electric Drives\u003c\/i\u003e is an invaluable resource to facilitate an understanding of the analysis, control, and modelling of electric machines.","brand":"Wiley","offers":[{"title":"Default Title","offer_id":47988666237157,"sku":"NP9781118485484","price":139.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1842\/7735\/files\/9781118485484.jpg?v=1761781182","url":"https:\/\/k12savings.com\/products\/advanced-electric-drives-isbn-9781118485484","provider":"K12savings","version":"1.0","type":"link"}