# Mining and Minerals Engineering

## CSM2044 - Electrical Energy Conversion and Transport (2011)

MODULE TITLE CREDIT VALUE Electrical Energy Conversion and Transport 10 CSM2044 Dr Gareth Kennedy (Coordinator)
DURATION: TERM 1 2 3
DURATION: WEEKS
DESCRIPTION - summary of the module content
AIMS - intentions of the module
This course employs a theoretical, practical, multidisciplinary approach to provide introductory students with a broad understanding of electrical machines, measurements and control of electric energy. The course is considered as a foundation for the Network Engineering, Modelling and Management module in the third year for BSc in Renewable Energy, or as a “stand-alone” basic course in electrical engineering as part of mining engineering degree courses.
INTENDED LEARNING OUTCOMES (ILOs) (see assessment section below for how ILOs will be assessed)
SYLLABUS PLAN - summary of the structure and academic content of the module
Week 1 Introduction: A simple AC generator, A simple DC generator, DC generators or dynamos, AC generators or alternators, DC motors, AC motors, Universal motors. Week 2 Fundamentals of Electricity, Magnetism, and Circuits: Magnetic field intensity H and flux density B, B-H curve of vacuum, B-H curve of an magnetic material, Determining the relative permeability, Faraday’s law of electromagnetic induction, Voltage induced in a conductor, Lorentz force on a conductor, Direction of the force acting on a straight conductor, Residual flux density and coercive force, Hysteresis loop, Hysteresis loss, Hysteresis loss caused by rotation, Eddy currents, Eddy currents in a stationary iron core, eddy-current losses in a revolving core, Current in an inductor. Week 3 DC Machines: Series generator, Shunt generator, Compound generator, Separately excited generator, Improving the waveshape, Induced voltage, No-Load operation and saturation curve, Load characteristics, Acceleration of the motor, Speed control, Reversing the direction of rotation, Starting of motors, Stopping a motor, Active power flow, Analysis of DC machines. Week 4 Transformers: Elementary transformer, Polarity of a transformer, Ideal transformer at no-load, Voltage ration, Current ratio, Circuit symbol for an ideal transformer, Impedance ratio, Equivalent circuit of practical transformer, Losses and transformer rating, voltage regulation, Measuring transformer impedances, Analysis of Transformers. Week 5 Induction Machines: Construction of Induction Motors, Types of Induction Motors, Operation of induction Motors, Rotating Field, starting Characteristics, Acceleration of a motor, Motor under load, Synchronous speed, Slip, Rotor Frequency, Estimating the currents, Active power flow, Speed Control, Braking of induction motors, Torque/Speed curve, effect of rotor resistance. Week 6 Synchronous Machines: Number of poles, main features of the stator, main features of the rotor, Field excitation, Equivalent circuit of an ac generator, No-load saturation curve, Synchronous reactance, Synchronous generator under load, Voltage regulation, Synchronization of a generator, Synchronous generator on an infinite bus, Active power flow, Synchronous Motors. Week 7 Analysis and Design of Electric Machines Applying MATLAB Week 8 Measurement and Instrumentation: Measurement and conversion techniques, transducers, signal conditioning and digital sampling (ADC and DAC), and applications. Week 9 Control Systems: Introduction to control systems, open loop and closed loop, analogue and digital control techniques, linear, non-linear, PID, PLC, and applications.
LEARNING AND TEACHING
LEARNING ACTIVITIES AND TEACHING METHODS (given in hours of study time)
DETAILS OF LEARNING ACTIVITIES AND TEACHING METHODS
ASSESSMENT
FORMATIVE ASSESSMENT - for feedback and development purposes; does not count towards module grade
SUMMATIVE ASSESSMENT (% of credit)
 Coursework Written Exams 20 80
DETAILS OF SUMMATIVE ASSESSMENT
DETAILS OF RE-ASSESSMENT (where required by referral or deferral)
RE-ASSESSMENT NOTES
RESOURCES
INDICATIVE LEARNING RESOURCES - The following list is offered as an indication of the type & level of
information that you are expected to consult. Further guidance will be provided by the Module Convener