This book is designed to give the theoretical foundation needed by the new user of finite elements in electrical power engineering, and shows how the equipment designer can benefit from finite element analysis. It is divided into 3 parts; theory, modelling and application of the finite element method. The first section dealing with the theory of finite elements contains all the necessary mathematical formulations to develop the method but is written in a manner to give the reader a physical/engineering understanding behind the technique. The second section deals mainly with modelling aspects, such as the treatment of boundary conditions, end effects, non-linear material and permanent magnets etc. In all cases reference is made to their use in the solution of 'real' engineering problems. Finally, the third part is a collection of problems solved by finite elements including application to turbine generations, d.c. machines, switch reluctance drives, induction motors, transformers, bushing and overhead lines.
List of symbols 1. Introduction Part I: Relevant Theory 2. Electromagnetics 3. Approaches to three-dimensional problems 4. Formulation of electromagnetic equations in finite element terms 5. Treatment of non-linear materials 6. Derived quantities Part II: Principles of Modelling 7. Data generation (or pre-processing) 8. Post-processing 9. Selection of hardware 10. Extensions for steady-state machine problems 11. Time stepping for steady-state and transient problems 12. The importance of engineering judgement Part III: Case Studies 13. Steady-state performance of large turbine generators: open circuit and load excitation and reactances 14. Turbine-generator end-leakage fields and losses 15. Turbine-generator transient parameters by simulated frequency response testing 16. Simulation of turbine-generator short circuit and application to parameter plóâ