EE2035 COMPUTER AIDED DESIGN OF ELECTRICAL APPARATUS SYLLABUS

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AIM

To introduce the basics of Computer Aided Design technology for the design of Electrical

Machines.

OBJECTIVE

At the end of this course the student will be able to

 Learn the importance of computer aided design method.

 Understand the basic electromagnetic field equations and the problem formulation

for CAD applications.

 Become familiar with Finite Element Method as applicable for Electrical Engineering.

 Know the organization of a typical CAD package.

 Apply Finite Element Method for the design of different Electrical apparatus.

UNIT I INTRODUCTION

Conventional design procedures – Limitations – Need for field analysis based design –

Review of Basic principles of energy conversion – Development of Torque/Force.

UNIT II MATHEMATICAL FORMULATION OF FIELD PROBLEMS

Electromagnetic Field Equations – Magnetic Vector/Scalar potential – Electrical vector

/Scalar potential – Stored energy in Electric and Magnetic fields – Capacitance -

Inductance- Laplace and Poisson’s Equations – Energy functional.

UNIT III PHILOSOPHY OF FEM

Mathematical models – Differential/Integral equations – Finite Difference method – Finite

element method – Energy minimization – Variational method- 2D field problems –

Discretisation – Shape functions – Stiffness matrix – Solution techniques.

UNIT IV CAD PACKAGES

Elements of a CAD System –Pre-processing – Modelling – Meshing – Material

properties- Boundary Conditions – Setting up solution – Post processing.

UNIT V DESIGN APPLICATIONS

Voltage Stress in Insulators – Capacitance calculation - Design of Solenoid Actuator –

Inductance and force calculation – Torque calculation in Switched Reluctance Motor.

TEXT BOOKS

1. S.J Salon, ‘Finite Element Analysis of Electrical Machines’, Kluwer Academic

Publishers, London, 1995.

2. Nicola Bianchi, ‘Electrical Machine Analysis using Finite Elements’, CRC Taylor&

Francis, 2005.

REFERENCES

1. Joao Pedro, A. Bastos and Nelson Sadowski, ‘Electromagnetic Modeling by Finite

Element Methods’, Marcell Dekker Inc., 2003.

2. P.P.Silvester and Ferrari, ‘Finite Elements for Electrical Engineers’, Cambridge

University Press, 1983.

3. D.A.Lowther and P.P Silvester, ‘Computer Aided Design in Magnetics’, Springer

Verlag, New York, 1986.

4. S.R.H.Hoole, ‘Computer Aided Analysis and Design of Electromagnetic Devices’,

Elsevier, New York, 1989.

5. User Manuals of MAGNET, MAXWELL & ANSYS Softwares.