ELEC ENG 3104 - Electric Drive Systems
North Terrace Campus - Semester 2 - 2023
General Course Information
Course Code ELEC ENG 3104 Course Electric Drive Systems Coordinating Unit School of Electrical & Electronic Engineering Term Semester 2 Level Undergraduate Location/s North Terrace Campus Units 3 Contact Up to 4 hours per week Available for Study Abroad and Exchange Prerequisites ELEC ENG 1100 or ELEC ENG 1101, ELEC ENG 2101 Incompatible ELEC ENG 3112, ELEC ENG 4059 Course Description This course introduces power electronics and electric drive systems. It includes the following topics. Characteristics of power electronic devices and their switching performance, power losses and thermal design. Classes of power converters: rectifiers; AC-AC converters; DC-DC converters, inverters. Voltage and current source converters. Hard and soft-switching and resonant circuits. Power supplies (uninterruptible, switched mode). Advanced energy-efficient motor drives: review of motor theory, power electronic control principles, vector and servo drives (stepper, DC, induction, brushless PM and switched-reluctance). Modulation methods. Theory motor and drive selection and application. System design, implementation and control, and computer interfacing. Electromagnetic interference.
Course Coordinator: Associate Professor Nesimi ErtugrulAssoc. Prof Nesimi Ertugrul
Phone: 8313 5465
Office: IW 3.54
The full timetable of all activities for this course can be accessed from Course Planner.X
Course Learning OutcomesOn successful completion of this course students will be able to:
1 Recognise the components of power electronics and learn their key characteristics. 2 Recognise the basic operation, losses and efficiency of the power electronics converters. 3 Use various methods to analyse power electronics circuits. 4 Develop a good insight about the practical issues in power electronics circuit design. 5 Explain and demonstrate operational issues and limitations of practical converters in industrial applications. 6 Explain the application requirements of converters in given applications.
The above course learning outcomes are aligned with the Engineers Australia Stage 1 Competency Standard for the Professional Engineer.
The course is designed to develop the following Elements of Competency: 1.1 1.2 1.3 1.4 1.5 1.6 2.1 2.2 3.3 3.5
University Graduate Attributes
This course will provide students with an opportunity to develop the Graduate Attribute(s) specified below:
University Graduate Attribute Course Learning Outcome(s)
Attribute 1: Deep discipline knowledge and intellectual breadth
Graduates have comprehensive knowledge and understanding of their subject area, the ability to engage with different traditions of thought, and the ability to apply their knowledge in practice including in multi-disciplinary or multi-professional contexts.
Attribute 2: Creative and critical thinking, and problem solving
Graduates are effective problems-solvers, able to apply critical, creative and evidence-based thinking to conceive innovative responses to future challenges.
Attribute 4: Professionalism and leadership readiness
Graduates engage in professional behaviour and have the potential to be entrepreneurial and take leadership roles in their chosen occupations or careers and communities.
Required ResourcesA comprehensive set of course notes will be made available. In addition, there will be LabVIEW-based computer simulations to facilitate your understanding and engage in applications and circuit operation of the course materials, which you will be able to access and execute in your own time.
Recommended ResourcesAlthough the course notes will provide you a comprehensive overview, I can recommend the following textbooks as supplementary resources to enrich your learning experience:
"Power Electronics: Converters, Applications, and Design" by Ned Mohan, Tore M. Undeland, and William P. Robbins.This book provides a comprehensive introduction to power electronics, with an emphasis on practical applications, making it a good reference for understanding electric drives and power systems.
"Electric Motor Drives: Modeling, Analysis, and Control" by R. Krishnan.This book provides a thorough overview of electric drive systems with detailed modeling and control strategies. It's especially useful for understanding motor drives in depth.
"Modern Power Electronics and AC Drives" by Bimal K. Bose.This book provides detailed insight into power electronics and AC drives. It's written by a renowned expert in the field and offers a balanced treatment of both theoretical concepts and practical aspects of electric drives and power systems.
Please note that these textbooks are meant to supplement the course notes and not replace them. They provide different perspectives and additional information that will be beneficial for your understanding of the course materials.
Online LearningI will make extensive use of the course website , where you will find a comprehensive set of course notes, quiz questions, practice problems, and online assessment tools. In addition, all the lecture videos will be available for you to download and revisit at your convenience.
Learning & Teaching Activities
Learning & Teaching ModesThe course will be delivered primarily through lectures,supplemented by problem-solving tutorials to reinforce the content. You'll access all course materials , including lecture notes, quizzes, and online assessments. I will also post recorded lectures for you to review at your convenience.
Before each lecture, please read the corresponding lecture material and attempt the questions provided. This will enhance your understanding and preparedness for class discussions.
Assessments in this course include three written quizzes,with questions drawn from lecture content, and one major assignment focusing on the analysis of a key building block in Power Electronics, the DC/DC converter. These assessments are designed to reinforce your learning and understanding ofthe course materials.
Please note that this course does not include a traditional practical component. Instead, I have provided LabVIEW-based virtual tools on the course site to illustrate circuit and motor drive operations.
The final examination will cover the entire course content.
The information below is provided as a guide to assist students in engaging appropriately with the course requirements.The University expects students to spend around 150 hours of work for a 3 unit course. This corresponds to roughly 12 hours per week. The following breakdown is a guide only. Some students will need to spend more time, some less.
Learning Activities SummaryELECTRIC DRIVE SYSTEMS/POWER ELECTRRONICS SYSTEMSCONTENTS:
1. Introduction, Applications of Power Electronics
1.1.1 Emerging Developments and Emerging Applications An Electric Circuit
2. Power Electronics Circuit Basics
2.1 Floating/Isolated Voltage Source Concept
2.2 Basic Circuit Topologies, DC Source
2.3 Diode Circuits with AC Supply (Rectifiers)
2.3.1. Definitions Efficiency in Rectifiers:Voltage-CurrentRelationships in Main Passive Elements
2.3.3.Single Phase Bridge Rectifiers
2.3.4 Further Remarks On Rectifier Circuits (Inrush Current in DC Link Capacitors)
2.3.5 Diode with an AC Supply and an Inductive (R Plus L !)Si Schottky Barrier Diodes Versus Sic Schottky Barrier Diodes (Sic-Sbd)3. “Powers” in Power Electronics
3.1 Revisiting Type of Powers AC Circuits (Sinusoidal Steady-State!)
3.2 Types of Powers in Power Electronics and Power Factor
3.3 Instantaneous and Average Powers
3.4 RMS (Effective) Current and Voltage
3.5 RMS Values in Conduction Losses and Switching Device Ratings
3.6.1 Frequency and Harmonic Spectrum
4. Three Phase Supply : Definitions
5. Three Phase Diode Rectifiers
5.1 Three-Phase Half-Wave Diode Rectifier (Resistive Load)
5.2 Three-Phase Full-Wave Bridge Rectifier (Resistive Load)
5.3 Features of the DC Link Capacitor in Rectifiers
5.4 Preliminary Study About “Inverter” Operation !
6. Switching Devices
6.1 Thyristor, SCR (Silicon Controlled Rectifier)
6.2 Transistors (BJT, MOSFET, IGBT)
6.3 Remarks on Hard/Soft Switching and Stray Inductance in Converter Topologies
6.4 Switching Capacitive and Inductive Loads
7. DC-DC Converters, Switched Mode Power Supplies
7.1 Step-Down (Buck) Converter
7.2 Step-Up (Buck) Converter
7.3 Operating Quadrants In DC-DC Converters
8. Inverters (DC to AC Converters)
8.1. Single Phase Inverter (H-Bridge)
8.2. Three Phase Inverters (Full-Bridge)
8.3. General Structure of Voltage and Current Source Inverters
8.4 Isolated Gate-Control Signals in Inverter Topologies
9. Electric Motors and Motion Control
9.1. Principles of Electric Motors
9.2 An Overview of Electric Motor Types
9.3 Brushless Permanent Magnet Ac Motors
9.3.1 DC Motors (With Brush)
9.3.2 Induction (Asycnhronous) Motors
9.3.3 Brushless Permanent Magnet AC Motors
9.3.4 Stepper Motors and Control
9.3.5.Switched Reluctance Motors and Control
9.4 Motion Control, Servo Drives and Selection Criteria
9.4.1 Motor Control Principles
9.4.2 Servo Motor Drives
9.4.4 Torque Speed Characteristics and 4-Quadrant Operation
9.4.5 Breaking Electric Motors
9.5 Selection and Sizing of Electric Motor
9.6 Isolation and Feedback Sensors Used In Motor Drives
9.6.1 Summary and Selection Criteria of the Feedback Devices
10. Summary of Applications, Future and Other Issues
10.1 Switch Capabilities and Applications
10.2 Electromagnetic Compatibility
10.3 Selection Criteria of the Motion Controllers
10.4 Internet of Things (IoT) in Power Electronics
Specific Course RequirementsNone
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M10 (Coursework Mark Scheme) Grade Mark Description FNS Fail No Submission F 1-49 Fail P 50-64 Pass C 65-74 Credit D 75-84 Distinction HD 85-100 High Distinction CN Continuing NFE No Formal Examination RP Result Pending
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