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SESM6034 Advanced Electrical Systems

Module Overview

To provide an introduction to power system analysis and an in-depth coverage of power electronics and electric machine operation and design in the context of applications from the fields of renewable energy, marine propulsion and electric vehicles.

Aims and Objectives

Module Aims

To provide an introduction to power system analysis and an in-depth coverage of power electronics and electric machine operation and design in the context of applications from the fields of renewable energy, marine propulsion and electric vehicles.

Learning Outcomes

Knowledge and Understanding

Having successfully completed this module, you will be able to demonstrate knowledge and understanding of:

  • Magnetic field quantities, magnetic material properties, magnetic circuits, Faraday’s law, Lorentz force law, Maxwell stress, eddy current and hysteresis losses [contributes to EAB learning outcomes SM1m, SM3m]
  • Sizing and performance calculation of brushless dc machines. [contributes to EAB learning outcomes SM1m, SM3m]
  • Principle of operation and construction of synchronous generators and transformers and their equivalent circuits. [contributes to EAB learning outcomes SM1m, SM3m]
  • Principle of operation of common power electronic converters: rectifiers and inverter; PWM; space vector modulation. [contributes to EAB learning outcomes SM1m, SM3m]
  • Concepts of smart grid, microgrid and distributed generation. [contributes to EAB learning outcomes EA5m, EA1m, P1m]
  • Analysis of 3 phase AC circuits and the per-unit system. [contributes to EAB learning outcomes SM1m, SM3m]
  • Active, reactive and apparent power. Power factor and power factor correction. [contributes to EAB learning outcomes SM1m, SM3m]
  • Power system stability, swing equation, equal area criterion. [contributes to EAB learning outcomes SM1m, SM3m]
  • Principle of operation of DC, induction and switched reluctance motors. [contributes to EAB learning outcomes SM1m, SM3m]
  • Principle of operation and construction of DC and brushless AC motors.[contributes to EAB learning outcomes SM1m, SM3m]
Subject Specific Intellectual and Research Skills

Having successfully completed this module you will be able to:

  • Appreciate the basic design rules of electromagnetic devices [contributes to EAB learning outcomes EA1m]
  • Apply basic electromagnetic theory to the analysis and design of electromagnetic devices including the ones covered in this module, and appreciate the limitations of the theory [[contributes to EAB learning outcomes EA1m, EA5m, G1m, G2m]
  • Use basic understanding of common power electronic converters to understand the operation of other advanced topologies discussed in the scientific literature and conceive of new ones for new and emerging technologies. [contributes to EAB learning outcomes EA1m, EA5m, G1m, G2m]
  • Size and estimate the performance of electromagnetic devices. [contributes to EAB learning outcomes EA1m]
Transferable and Generic Skills

Having successfully completed this module you will be able to:

  • Apply generic approach of problem solving and design principles in the field of electric machines, power systems and power electronics to other engineering subjects, especially when there is an analogy between the governing equations. [contributes to EAB learning outcomes EA3m]

Syllabus

Magnetic Fields: • Magnetic field quantities • Magnetic material properties • Magnetic circuit and inductance • Faraday’s law of induction • Magnetic force calculation: Lorentz force law; energy method and Maxwell stress • AC losses in laminations. • Case study: Coriolis mass flow meter. Power Generation and Transmission • Power transmission system architecture. • Synchronous Generator: principle of operation; construction; emf calculations. • Transformer: principle of operation; equivalent circuits parameter estimation; single and 3-phase transformers. • Distributed generation: renewables; exhaust energy recovery. • Power electronic converters: rectifiers; DC/DC converters; DC/Ac inverters. • Smart grid and microgrids Power System Analysis: • Review of AC circuit theory. • Three phase circuits, power calculations, reactive power, power factor and power factor corrections, • per unit systems Power System Stability • Types of stability study, • The swing equation • Equal area criterion • Transient stability analysis of a single generator connected to an infinite bus. Introduction to Induction, Switched Reluctance Machine and DC Machines: • Induction Machine: construction and principle of operation. • Switched Reluctance Machines: construction and principle of operation • DC Machine: Construction and principle of operation; DC machine Relationship between torque and size and the calculation of Kt and Ke; dq model; Wound field machines their torque-speed characteristics. Permanent Magnet Synchronous Motors: • Brushless DC motor: construction and principle of operation of the brushless dc motor with trapezoidal emf and quasi-squarewave currents; design choices (number of poles, rotor configuration, number of slots etc.); detailed motor design (sizing) example; • Case Study: Rim driven thrusters. The students then have the opportunity to design a brushless dc motor for a rim driven thruster. • Brushless AC motor: construction and principle of operation; dq model; vector control.

Special Features

Case studies from lecturer’s own research.

Learning and Teaching

Teaching and learning methods

Teaching methods include • Lectures including examples, with notes and copies of the presentation available on Blackboard. Learning activities include • Directed reading • Individual work on formative coursework.

TypeHours
Wider reading or practice18
Preparation for scheduled sessions9
Follow-up work18
Lecture36
Completion of assessment task33
Revision36
Total study time150

Resources & Reading list

J. R. Hendershot and T. J. E. Miller (2010). Design of permanent magnet machines. 

S. M. Sharkh, M. A. Abusara, G. I. Orfanoudakis, B. Hussain (2014). Power Electronic Converters for Microgrids. 

Software requirements. Matlab

M. G. Say (1958). Performance and Design of Alternating Current Machines. 

M. G. Say and E. O. Taylor (1980). Direct Current Machines. 

Software. Ansys Electronic Desktop

A. E. Fitzgeral, C. Kingley and S. D. Uman (2003). Electric Machinary. 

W. D. Stephenson (1982). Elements of Power Analysis. 

Assessment

Assessment Strategy

Exam paper includes questions to test student knowledge and problem solving skills.

Formative

Assignment

Summative

MethodPercentage contribution
Examination  (120 minutes) 100%

Repeat

MethodPercentage contribution
Examination  (120 minutes) 100%

Referral

MethodPercentage contribution
Examination  (120 minutes) 100%

Repeat Information

Repeat type: Internal & External

Linked modules

Pre-requisite: FEEG1004

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