# PX7001 ELECTROMAGNETIC FIELD COMPUTATION AND MODELLING SYLLABUS 2013 REGULATION

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PX7001        ELECTROMAGNETIC FIELD COMPUTATION AND MODELLING       LT P C                                                                                                                                 30 0 3

OBJECTIVES:

• To refresh the fundamentals of Electromagnetic Field Theory.
• To provide foundation in formulation and computation of Electromagnetic Fields using analytical and numerical methods.
• To impart in-depth knowledge on Finite Element Method in solving Electromagnetic field problems.
• To introduce the concept of mathematical modeling and design of electrical apparatus.

UNIT I    INTRODUCTION                                                                                              9

Review of basic field theory – Maxwell’s equations – Constitutive relationships and Continuity equations –  Laplace,  Poisson  and  Helmholtz equation  –  principle  of  energy  conversion  – force/torque calculation.

UNIT II    BASIC SOLUTION METHODS FOR FIELD EQUATIONS                                9

Limitations of the conventional design procedure, need for the field analysis based design, problem  definition,  boundary  conditions,  solution  by  analytical  methods-direct  integration method – variable separable method – method of images, solution by numerical methods- Finite Difference Method.

UNIT III    FORMULATION OF FINITE ELEMENT METHOD (FEM)                                9

Variational Formulation – Energy minimization – Discretisation – Shape functions –Stiffness matrix –1D and 2D planar and axial symmetry problems.

UNIT IV    COMPUTATION OF BASIC QUANTITIES USING FEM PACKAGES               9

Basic quantities – Energy stored in Electric Field – Capacitance – Magnetic Field – Linked Flux – Inductance – Force – Torque – Skin effect – Resistance.

UNIT V    DESIGN APPLICATIONS                                                                                 9

Design of Insulators – Cylindrical magnetic actuators – Transformers – Rotating machines.

TOTAL = 45 PERIODS

REFERENCES:

1. Matthew. N.O. Sadiku, “Elements of Electromagnetics”, Fourth Edition, Oxford University Press, First Indian Edition 2007.
2. K.J.Binns, P.J.Lawrenson,  C.W  Trowbridge,  “The  analytical  and  numerical  solution  of Electric and magnetic fields”, John Wiley & Sons, 1993.
3. Nicola Biyanchi , “Electrical Machine analysis using Finite Elements”, Taylor and Francis Group, CRC Publishers, 2005.
4. Nathan Ida,  Joao  P.A.Bastos  ,  “Electromagnetics  and  calculation  of  fields”,  Springer- Verlage, 1992.
5. S.J Salon, “Finite Element Analysis of Electrical Machines” Kluwer Academic Publishers, London, 1995, distributed by TBH Publishers & Distributors, Chennai, India.
6. Silvester and Ferrari, “Finite Elements for Electrical Engineers” Cambridge University press, 1983.