Teaching Responsibility

LJMU Schools involved in Delivery:

LJMU Partner Taught

Learning Methods

Lecture

Practical

Tutorial

Workshop

Module Offerings

5604ICBTEL-MAR-PAR

5604ICBTEL-SEP-PAR

Aims

To provide an understanding of transformers, technological principles of operation of electrical machinery and transformers, the steady state analysis, circuit modelling and analyzing electric machines’ performance and motor controlling unit. To provide knowledge in power electronic devices of IGBT, Thyristor and TRIAC, circuit operation and analysis of DC–DC converter, phase-controlled AC–DC converters and harmonics

Learning Outcomes

1.
Discuss construction and operation of transformer, the single-phase equivalent circuit analysis, testing analysis, applications and three phase transformers
2.
Describe three-phase power generation, the single-phase equivalent circuit representations and operation of the electrical machines, power flow and perform load calculation
3.
Identify operation and application of power electronic devices IGBT, Thyristor and TRIAC
4.
Discuss the operation of step-up and step-down DC-DC converters and phase-controlled AC-DC converters, its circuit analysis, switching losses and recognize harmonic distortion produced by power electronic circuits
5.
Design and analyze the operation of power electronic devices and converters

Module Content

Outline Syllabus:
Single-Phase Transformers, principles of operation, equivalent circuit, load calculations, open- and short-circuit tests, regulation, loss mechanisms, uses of transformers, construction, basic design principles and three phase transformers

Fundamentals of electromagnetism: Force and torque in magnetic field, induced electromotive force. Inductance and magnetic circuits: self-inductance, mutual and leakage inductance; magnetic circuits and reluctance of the magnetic path, B-H curve of magnetic material, cores with air-gap. Induced electromotive force, Losses in ferromagnetic materials.

Electric machines: Electromechanical energy conversion: motoring and generating, working principle, equivalent circuit analysis, torque, types of machines, rotating field

Steady-state analysis of induction machines: operating principle, equivalent circuit, power flow diagram, phasor diagram, torque speed curve, losses and efficiency. Steady-state analysis of synchronous motors/generators: operating principles, active and reactive power, phasor diagrams, equivalent circuits, power and torque versus load angle curves. The use of synchronous generators and induction generators in Hydro and wind energy converters.

Working principle, performance, torque curve and theory of stepper motor, servo motor and DC motor.

Motor controlling unit – Motor drives for speed, torque control in motors: VFD, VSD

DC-DC Converters. Principle of switched-mode power conversion. Power MOSFET and IGBT devices. Step-up and step-down chopper circuits- buck, boost, buck boost converters. Inductive switching waveforms and switching losses.

AC-DC Converters. Single-phase, half and full-wave rectifier circuits with inductive DC filter. Thyristor characteristics. Single-phase and three phase - phase-controlled operation - rectification and inversion modes - applications.

Power transfer to non-linear loads, harmonics, power factor, input displacement factor and distortion factor
Module Overview:
This module aims to develop your knowledge of transformers, three phase power generation, technological principles of operation of electrical machinery, electric motors and transformers, the steady state analysis, circuit modelling and analyzing electric machines’ performance and motor controlling unit. To provide knowledge in power electronic devices of IGBT, Thyristor and TRIAC, circuit operation and analysis of DC–DC converter, phase-controlled AC–DC converters and harmonics
Additional Information:
This module provides the knowledge in power generation, Induction machine, synchronous machine, stepper, servo, DC motors, transformer - its operation, equivalent circuits, performance analysis, losses, efficiency. And DC-DC converters, phase-controlled AC-DC converters - its operation, analysis and harmonics

Assessments

Exam

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