Multiphysics Simulation by Design for Electrical Machines, Power Electronics and Drives

Marius Rosu, PhD, is Lead Product Manager for the Electromechanical Product Line at Electronic Business Unit (EBU) of ANSYS Inc., USA. Ping Zhou, PhD, FIEEE, is Director of Research and Development at Electronic Business Unit (EBU) of ANSYS Inc., USA. Dingsheng Lin, PhD, is a Principal Research and Development Engineer at Electronic Business Unit (EBU) of ANSYS Inc., USA. Dan Ionel, PhD, FIEEE, is Professor of Electrical Engineering and L. Stanley Pigman Chair in Power at University of Kentucky, Lexington, KY. Mircea Popescu, PhD, FIEEE, is Head of Engineering of Motor Design Ltd., U.K., a company that develops software for the analysis and design of electrical machines. Frede Blaabjerg, PhD, FIEEE, is a Professor in Power Electronics and Villum Investigator the Department of Energy Technology at Aalborg University, Denmark. Vandana Rallabandi, PhD, is a Post-doctoral Researcher in the SPARK Laboratory, Electrical and Computer Engineering Department, University of Kentucky, Lexington, KY. David Staton, PhD, is President and Founder of Motor Design Ltd, UK, a company that develops software for the analysis and design of electrical machines.

• PREFACE viiACKNOWLEDGMENTS xvCHAPTER 1 BASICS OF ELECTRICAL MACHINES DESIGN AND MANUFACTURING TOLERANCES 1Marius Rosu, Mircea Popescu, and Dan M. Ionel1.1 Introduction 11.2 Generic Design Flow 31.3 Basic Design and How to Start 41.4 Efficiency Map 161.5 Thermal Constraints 191.6 Robust Design and Manufacturing Tolerances 22References 42CHAPTER 2 FEM-BASED ANALYSIS TECHNIQUES FOR ELECTRICAL MACHINE DESIGN 45Ping Zhou and Dingsheng Lin2.1 T–Ω Formulation 452.2 Field-Circuit Coupling 562.3 Fast AC Steady-State Algorithm 702.4 High Performance Computing—Time Domain Decomposition 822.5 Reduced Order Modeling 93References 106CHAPTER 3 MAGNETIC MATERIAL MODELING 109Dingsheng Lin and Ping Zhou3.1 Shape Preserving Interpolation of B–H Curves 1093.2 Nonlinear Anisotropic Model 1153.3 Dynamic Core Loss Analysis 1253.4 Vector Hysteresis Model 1373.5 Demagnetization of Permanent Magnets 150References 162CHAPTER 4 THERMAL PROBLEMS IN ELECTRICAL MACHINES 165Mircea Popescu and David Staton4.1 Introduction 1654.2 Heat Extraction Through Conduction 1674.3 Heat Extraction Through Convection 1704.4 Heat Extraction Through Radiation 1864.5 Cooling Systems Summary 1884.6 Thermal Network Based on Lumped Parameters 1884.7 Analytical Thermal Network Analysis 1924.8 Thermal Analysis Using Finite Element Method 1934.9 Thermal Analysis Using Computational Fluid Dynamics 1954.10 Thermal Parameters Determination 2004.11 Losses in Brushless Permanent Magnet Machines 2024.12 Cooling Systems 2104.13 Cooling Examples 214References 218CHAPTER 5 AUTOMATED OPTIMIZATION FOR ELECTRIC MACHINES 223Dan M. Ionel and Vandana Rallabandi5.1 Introduction 2235.2 Formulating an Optimization Problem 2245.3 Optimization Methods 2265.4 Design of Experiments and Response Surface Methods 2285.5 Differential Evolution 2335.6 First Example: Optimization of an Ultra High Torque Density PM Motor for Formula E Racing Cars: Selection of Best Compromise Designs 2345.7 Second Example: Single Objective Optimization of a Range of Permanent Magnet Synchronous Machine (PMSMS) Rated Between 1 kW and 1 MW Derivation of Design Proportions and Recommendations 2385.8 Third Example: Two- and Three-Objective Function Optimization of a Synchronous Reluctance (SYNREL) and PM Assisted Synchronous Reluctance Motor 2415.9 Fourth Example: Multi-Objective Optimization of PM Machines Combining DOE and DE Methods 2455.10 Summary 248References 248CHAPTER 6 POWER ELECTRONICS AND DRIVE SYSTEMS 251Frede Blaabjerg, Francesco Iannuzzo, and Lorenzo Ceccarelli6.1 Introduction 2516.2 Power Electronic Devices 2536.3 Circuit-Level Simulation of Drive Systems 2646.4 Multiphysics Design Challenges 274References 281INDEX 283