On Demand Video Courses - Professsional Development for Enginneers and Technologists

IDC Technologies

Providing training for over 500,000 Engineers and Technicians since 1991

AGLBHPBPChevronRio TintoShellTataToyota

PE-SP Power Electronics, Switch Mode Power Supplies & VSDs

  • Duration:
  • Investment: US$ 249
Certificate:

Must complete all lessons

Description

Power electronics generally deals with the conversion of electric power. An expert knowledge on the characteristics and operation of power electronic circuits is must for a technical staff to be efficient while working on high power applications. However the major concern in the power electronics area is switching losses during switch ON/OFF which will reduce the efficiency and performance of the system. By involving certain methods, switching losses can be reduced thereby improving the overall efficiency of the system.
Participants can use the skills and gain in-depth knowledge from this work shop on the emerging applications of semiconductor devices that offer higher efficiency.
 This course is designed to introduce students to power electronic converters and their recent trends and applications in various fields.
 

WHO SHOULD COMPLETE THIS COURSE

  • Electronic engineers
  • Electrical engineers
  • System engineers
  • Program managers
  • Measurement engineers
  • Laboratory engineers
  • Technical leaders
  • System integrators
  • Material engineers 
  • Appliance manufacturing engineers 
  • Assembly engineers 
  • Process engineers
  • Reliability and quality engineers
  • Maintenance engineers

 

COURSE OUTLINE
INTRODUCTION TO POWER ELECTRONIC CIRCUITS AND DEVICES

  • Basic Definitions
  • Bistable Switching
  • Power Diodes
  • Commutation losses of Power Thyristors
  • Diode Rectifier AC and DC Current
  • Operating principle of Line Commutated Thyristor Rectifier

 

BASIC PRINCIPLES OF INVERTER AND THYRISTOR

  • General purpose Inverter
  • Principles of Gate Commutated Inverters
  • Modulation Techniques of PWM Inverter
  • Switching configurations of 3-phase PWM Inverter
  • GTO Thyristors
  • Field Controlled Thyristors
  • Power Ratings of Bipolar Junction Transistor
  • Applications of Field Effect Transistors
  • Symbol, Features and Advantages of Insulated Gate Bipolar Transistor
  • Future power semiconductor devices development direction

 

INTRODUCTION TO SWITCH MODE POWER SUPPLIES

  • Power supply efficiency
  • Dissipative Power Supplies :  Series
  • Implications of Power Loss
  • Advantages of Switching-Mode Power Supplies
  • Switching regulator

 

ISOLATED AND NON-ISOLATED TOPOLOGIES OF CONVERTER

  1. Operating principle of Buck and Boost Regulator
  2. Construction of Fly back Converter
  3. Forward Converters
  4. Circuit arrangement of Push-Pull Converters
  5. Operation of Half Bridge and Full Bridge Converter

 

SWITCH MODE POWER SUPPLY DESIGN 1 AND 2

  • Block Diagram of Switch Mode Power Supply
  • 115V and 230V operation of Voltage doubler
  • Component selection and design criteria
  • Input Protective Devices

 

HIGH FREQUENCY TRANSFORMERS

  • Criteria for the selection of magnetic component design
  • Ferrite core material for high-frequency power transformers
  • Faraday’s law of electromagnetic induction
  • Hysteresis loop
  • Typical magnetization curve
  • Basic transformer theory

 

WINDING TECHNIQUES                

  • Planar winding structure
  • Meander planar winding
  • Co-axial winding structure
  • Losses and Temperature rise
  • Switch Mode Power Supply block diagram- Output section

 

SWITCH MODE PSU DESIGN 2                 

  • Output Rectification and Filtering
  • Power Rectifier characteristics
  • Motorola Rectifier Product Portfolio
  • Transient over-voltage suppression
  • Switch protection circuits
  • Output Power Inductor and Capacitor Design
  • Application of Magnetics Molypermalloy Powder (  MMP)

 

INTRODUCTION TO HEAT-SINKING

  • Objective
  • Thermal equation
  • Path of thermal conductivity
  • Thermal resistance
  • Heat sink selection

 

IC PWM CONTROLLERS

  • Voltage doubler- 115V Operation
  • Use of PWM Controller in SMPS
  • Pulse-width modulator block diagram and comparator signals
  • A discrete PWM control circuit for a fly-back switching power supply
  • Methods of Control
  • UC3825 block diagram
  • High Speed Complementary Blocks

 

SWITCH MODE POWER SUPPLY CONTROL AND STABILITY                  

  • Transfer Function of various converters
  • Criteria for Stability
  • Methods of SMPS control
  • Design Compensation Networks
  • Loop Stability Measurements

 

INTRODUCTION TO VARIABLE SPEED DRIVES            

  • Need for Variable Speed Drives
  • Fundamental principles- Definitions
  • Torque-Speed curves
  • Variable Speed-Energy conservation
  • Types of Variable Speed Drives
  • Principles of DC and AC Variable Speed Drive

 

3-PHASE INDUCTION MOTORS

  • Introduction
  • Construction and operating principles of Induction motors
  • Equivalent Circuit of AC Motor

 

3-PHASE INDUCTION MOTOR PERFORMANCE AND EFFICIENCY 

  • Performance, Efficiency and Mechanical Output Power
  • Torque-Speed curve
  • Rating of AC Induction Motors
  • Methods of Starting and Selection of Motor

 

PROTECTION OF AC CONVERTERS

  • Input Phase Imbalance
  • DC Bus Under-voltage and Over-voltage
  • Over- Current Protection
  • Output Earth Fault Protection
  • Over Temperature Protection

 

AC MOTOR PROTECTION

  • Motor Thermal O/L Protection
  • Electric Motor Protection
  • Winding Thermostats
  • 2-Wire and 3-Wire RTDs

 

CONTROL SYSTEMS FOR AC VARIABLE SPEED DRIVES

  • Overall Control System
  • DC bus Pre-charging circuit 1 and 2
  • PWM Rectifier for AC Converters
  • Variable Speed Drive control loops
  • AC Variable Speed Drives    

 

VECTOR CONTROL DRIVES

  • Flux-Vector Control
  • Sensor less Vector Control Drives
  • Field Oriented Flux-Vector Drives
  • Hall Effect Sensor
  • Incremental Rotary Encoders

 

SELECTION OF AC CONVERTERS

  • Introduction
  • Basic Selection Procedure of AC Variable Speed Drive
  • Torque Loadability Curve
  • Nature of the Machine load
  • Variable Torque Loads- Pumps and Fans
  • Constant Torque Loads- Conveyors
  • Requirements for Starting and Stopping

 

INTRODUCTION TO TYPES OF BRAKING

  • Basic principle of DC Braking
  • Dynamic Braking
  • Methods of Regenerative Braking

 

ELECTROMAGNETIC COMPATIBILITY

  • Electrical Interference
  • Sources of Harmonic currents
  • Power Electronic Converters
  • Mains current harmonics- DC and AC PWM DRIVES

 

REDUCTION OF HARMONICS

  • Multi Pulse Converters
  • Problems with HF PWM Switching
  • Motor side filter

 

REQUIREMENTS OF AC VARIABLE SPEED DRIVE SYSTEM

  • De-Rating for Temperature and Altitude
  • Main Cable Connections

 

STOP/START Control of AC drives

  • Contactor- Main supply side and motor side
  • Mounting in Metal Enclosures
  • PLC Control wiring
  • General SMPS Troubleshooting approach

Investment

Plan Name Investment
Unlimited Access for 2 Years: US$ 249

Instructor

Frikkie Marx

Pr Eng, B Sc (Eng) Senior Engineer

Frikkie has over 20 years of experience in the fields of Power Systems from design to industrialisation. He started his career on the Power System Protection side, then migrated to EMC and Power Supply Systems. Frikkie's portfolio of achievements includes the design of Power Systems, Switch Mode Power Supplies, UPS, high precision Servo Amplifiers, battery and Inverter Design for solar panel applications, vehicle management, specialised computer systems and high current starter for vehicle plants. Lecturer and course developer of Industrial  and Power electronics for Technikon SA (UNISA). Project Manager/System engineer for the development of Electro-optical systems which include video systems for UAV’s and a high resolution Infra-Red Camera. Other activities include the mentorship programs of Kentron, Industrial electronics, rockets and robots training programme for the Denel Youth Foundation Bridging Program as well as training consultant.

Student Login

Log in  \/ 
x
Register  \/ 
x

Why Undertake a Video Course?

Completely Online

All videos and eBooks can be viewed entirely online

Complimentary eBooks

Receive an eBook (or two) for each course you purchase

2 Year Unlimited Access

Have access to the course at any time of the day, for a period of 2 years

Repeat Viewing

All videos and eBooks can be viewed multiple times throughout the 2 year period

Downloadable Certificate

Unlock a certificate as proof of course completion

Free Courses

SAK-SP Swiss Army Knife of Videos on Engineering Skills
  • 11222 Students

It is our silver anniversary in the training and education industry and we are celebrating it with you! Receive your exclusive and complimentary access to the IDC Technologies’ “Swiss Army Knife...

DMC8-SP Mechatronics and Remote Engineering - Digital Circuit Design
  • 1204 Students

Was $99 - now no charge to register for this course.  Register here *On registration return to the main course page, click on the "Green Enrol" button. Digital circuits are the basic...

eBook Downloads

All of our included eBbooks require the free CopySafe Reader

Copy Safe Reader CopySafe Reader from Artistcope

IDC- Online Accepts Paypal

Australian residents who purchase a course/s are charged 10% GST.

This is in addition to the course price and is included in the Paypal Invoice.

Who is online

We have 170 guests and 12 students online

Go to top