ELEC2213 Electrical Machines (201617) If this document is inaccurate please contact the FPSE CQA team at fpse-cqa@soton.ac.uk Module title Electrical Machines Module code ELEC2213 Module lead Thomas Andritsch Module lead profile url: https://secure.ecs.soton.ac.uk/people/ta1m12 External Examiner: Faculty Physical Sciences & Eng Academic unit ECS Academic session first offered 201314 Credit Points ECTS 7.5 Level Undergraduate When will the module be taught Semester 2 Pre-requisite and/or co-requisite Immediate prerequisites modules No prerequisites Programmes in which the module is core Programmes in which the module is compulsory MEng Electromech Eng w Ind Stu (year 2) MEng Elec Eng with Ind Studies (year 2) MEng Electromech Engineering (year 2) BEng Electromech Engineering (year 2) MEng Electrical Engineering (year 2) BEng Electrical Engineering (year 2) Programmes in which the module is optional MEng Electrical & Elec. Eng (year 2) BEng Electrical & Elec. Eng (year 2) MEng Elec & Elec Eng w Ind Stu (year 2) Date of last edit 20th Sep 2016 - 2:27pm Module overview • To introduce the students for fundamental concepts and principles of operation of various types of electrical machines. • To equip the students with basic experimental and modelling skills for handling problems associated with electrical machines. • To give the students an appreciation of design and operational problems in the electrical power industry. • To introduce the students to modern CAD environment in relation to design of electromechanical devices. • To increase the students’ confidence in using numerical techniques of solving large system of equations arising in modelling and simulation of electromechanical devices Aims and learning outcomes Aim Having successfully completed this module, you will be able to: Appreciate the complexity of design of electromechanical devices, identify different types of electrical machines and compare and contrast their operation Derive equations describing operation of machines, formulate relevant equivalent circuits and analyse simple problems related to operation of electrical machines Appreciate and apply methods of solving large systems of equations; evaluate the role of CAD in engineering design Knowledge and Understanding Having successfully completed this module, you will be able to demonstrate knowledge and understanding of: Theory of electromechanical energy conversion, the concepts of fundamental torque equation and rotating and oscillating fields The principles of operation of electrical generators and motors; fundamental characteristics of various types of machines Construction and design issues associated with electrical machines Components of the CAD systems for Electromagnetics Subject Specific Intellectual Having successfully completed this module, you will be able to: Tackle problems of analysis of performance and explain the shape of characteristics of actual machines Apply equivalent circuits to performance prediction, interpret results and correlate them with theoretical predictions Transferable and Generic Having successfully completed this module, you will be able to: Use electromagnetic CAD packages and write a technical report Subject Specific Practical Having successfully completed this module, you will be able to: Work in a small team to conduct simple experiments on rotating electrical machines and transformers Undertake virtual prototyping of electromagnetic devices Graduate Attributes Graduate Attributes are the personal qualities, skills and understandings that University of Southampton students have the opportunity to develop. They include but extend beyond subjectspecific knowledge of an academic discipline and its technical proficiencies. The Graduate Attributes are achieved through the successful attainment of the learning outcomes of the programmes, and successful engagement with the University’s co-curriculum e.g. the Graduate Passport. A checklist for embedding the graduate attributes is available at: https://sharepoint.soton.ac.uk/sites/ese/quality_handbook/Handbook/Employability%20Statement.aspx Summary of syllabus content • Review of power circuits. (2 lectures) Three-phase systems, star and delta connections. Active, reactive, apparent, complex power. Power diagrams. Power factor. Phasor diagrams. Complex impedance, impedance triangle. • 3 phase transformers. (6 lectures) Review of principles of operation; construction; review of equivalent circuit; open- circuit and short-circuit tests; regulation; three-phase connections; parallel operation; auto-transformer; introduction to 3rd harmonic phenomenon and unbalanced loading. • Introduction to rotating machines. (3 hours) Underlying concepts and features of rotating machines; fundamental torque equation; rotating field principle; air-gap mmf and permeance; 3-phase windings; winding factors. • Synchronous machines. (4 lectures) Generated emf; output equation; armature reaction; phasor diagram; synchronous reactance; equivalent circuit; open and short-circuit characteristics; regulation; load angle; synchronous machine on infinite busbars; effects of saturation; salient-pole machine; synchronising; synchronous motor; V curves; power factor correction. • Polyphase induction motors. (5 lectures) Basic theory and construction of squirrel-cage and wound-rotor motors; equivalent circuit; measurement of equivalent circuit parameters; analysis of machine equations; speed/torque curves; circle diagram; starting performance; speed control; single-phase induction motor; deep bar effect in squirrel-cage induction motor. • Direct current machine. (4 lectures) Review of construction; basic equations and steady-state characteristics; windings; field form and armature reaction; commutation and use of interpoles; starting and speed control. • Single-phase ac motors. (2 lectures) Outline of shaded-pole, universal, permanent magnet, and reluctance machines with applications. • Introduction to hierarchical design and CAD. (1 lecture) • Numerical solution of large systems of equations. (4 lectures) The finite element method for virtual prototyping Analysis of errors; matrix and vector norms; condition numbers. Comparison of methods. • The CAD environment (2 lectures) Pre- and post-processing, automatic and adaptive meshing, Design Environment, optimisation, future trends. • Case Studies: (3 lectures) Wind turbines Electrical and hybrid vehicles Maglev and conventional trains Summary of teaching and learning methods Summary of assessment and Feedback methods Assessment Method % Final contribution Number assessment Feedback Method to final (✔) mark Coursework 20% Laboratories 15% Exam 65% (Duration:2 hours) Referral Method By examination, with the original coursework mark being carried forward Method of Repeat Year Repeat year internally Learning Resources Resource type: Background textbook Sarma M S, Electric Machines, Steady-state Theory and Dynamic Performance Second Edition, Publisher: West Publishing Company, 1994 Resource type: Background textbook ISBN: 0-19-856289-6 and 0-19-856288-8 Hammond P & Sykulski J K, Engineering Electromagnetism - Physical Processes and Computation, Oxford University Press, 1994, Resource type: Background textbook Stephen J Chapman, Electrical Machinery and Power System Fundamentals, Publisher: McGraw-Hill Higher Education, 2001 Resource type: Background textbook Denis O'Kelly, Performance and Control of Electrical Machines, Publisher: Mc-Graw Hill Book Company, 1991 Resource type: Background textbook K Karsai, D Kereny, L Kiss, Studies in Electrical and Electronic Engineering 25, Large Power Transformers, Publisher: Elsevier, 1987 Resource type: Background textbook A E Fitzgerald, Charles Kingsley, Stephen D Umans, Electric Machinery, Sixth Edition, Publisher: Mc-Graw-Hill Higher Education, 2002 Resource type: Background textbook Charles I Hubert, Electric Machines, Theory, Operation, Application, Adjustment and Control, Publisher: Macmillan Publishing Company, 1991 Resource type: Background textbook Dino Zorbas, Electric Machines, Principles, Applications, and Control Schematics, Publisher: West Publishing Company, 1989 Resource type: Background textbook John Hindmarsh, Electrical Machines and their Applications, Publisher: Butterworth-Heinemann, 1995 Resource type: Background textbook ISBN: 978-3-89578-434-7 J. Weidauer, R. Messer, Electrical Drives, Publisher: Publicis Publishing, 2014 Resource type: Background textbook ISBN: 9781118752609 K.T. Chau, Electric Vehicle Machines and Drives – Design, Analysis and Application, Publisher: Wiley, 2015 Appendix: KIS hours Contact hours for Teaching: Hours Lectures 36 Seminars (including sessions with outside speakers) 0 Tutorials 12 Practical Classes and Workshops (including Boat work) 0 Project supervision 0 Fieldwork 0 Demonstration Sessions 0 Supervised time in studios/workshops/laboratories 0 External Visits 0 Summer Workshops 0 Work Based Learning 0 Total 48 Independent study Hours Preparation for scheduled sessions 18 Follow-up work 18 Revision 10 Wider reading or practice 41 Completion of assessment task 15 Placement Hours 0 Year Placement 0 6 Month Placement 0 Total 102