You can recite the torque equation. You still cannot turn a 200 kW, 400 V, 1485 rpm nameplate into a bore diameter and stack length that works. This book closes that gap.A graduate-level, computationally driven treatment of electrical machine design. Each chapter pairs full field-theoretic derivation with runnable Python sizing code verified against closed-form checks. Every method arrives with both a derivation and a working tool that reproduces it across induction, synchronous, permanent-magnet, DC, and reluctance machines.WHAT'S INSIDE• Electromagnetic foundations, including Maxwell's equations, the Lorentz force law, and five torque-extraction methods.• Windings and current linkage, including distribution factors, pitch factors, harmonic suppression, and star-of-slots construction.• Magnetic circuits, leakage, and resistance, including Carter's factor, magnetization curves, leakage inductance, and skin-effect resistance.• Main dimensions and computational sizing using a coupled electromagnetic, thermal, and mechanical Python workflow.• Complete induction-machine design, from equivalent circuits and slot selection to a fully sized cage-rotor motor.• Variable-frequency drives, traction operation, doubly-fed generators, and drive-cycle efficiency mapping.• Synchronous-machine design, including load-angle behavior, test curves, damper windings, and a complete salient-pole generator design.• Permanent-magnet machine design, including demagnetization limits, rotor topologies, d-q inductances, saliency, and cogging-torque mitigation.• EV traction motor design with field weakening and a 4,000-design computational sweep across power density, efficiency, and cost.• DC machine design, commutation, armature reaction, commutating poles, and compensating windings.• Switched and synchronous reluctance machines, converter operation, current control, and torque-ripple mitigation.• Insulation and thermal design using Arrhenius life models and lumped-parameter thermal circuits.WHAT YOU WILL LEARN TO DO• Size a machine directly from its power, voltage, and speed specifications.• Derive equivalent-circuit parameters from physical geometry.• Calculate leakage inductance and AC copper losses.• Design a permanent-magnet rotor against demagnetization and saliency limits.• Build a coupled electromagnetic, thermal, and mechanical sizing program.• Sweep thousands of candidate designs using Python.• Predict torque-speed behavior under variable-frequency drive supply.WHY THIS BOOK• Every sizing method includes runnable Python code.• Permanent-magnet traction design receives full chapter-length coverage.• Leakage, skin effect, insulation, and thermal design receive detailed treatment.• 83 worked examples and 225 solved problems follow one consistent six-part method.• One notation system and figure style extends across every machine type.WHO THIS BOOK IS FORGraduate students taking electrical-machine design courses and practicing engineers moving from machine analysis into practical sizing, especially those working in EV traction and industrial-drive programs.A machine sized incorrectly is expensive to learn about after the prototype is built. This book puts that mistake on paper, and in Python, first.
