Advanced Variable Speed Drives Course
Electrical and Power Engineering

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Advanced Variable Speed Drives Course
Course Overview:
The course provides a detailed understanding of the working, servicing, and fault-finding of AC Motors and Drives, with special regard to Variable Frequency Drives and frequency converters. We will explore the different generic types of AC motors, motor starting methods, protection methods, torque characteristics, and so on.
There are some advanced topics in this course, such as VFD effects on motor life and performance, power line harmonics, and harmonic cancellation. The electrical motors and drives maintenance and troubleshooting part advises how to effectively resolve some performance issues already proactively.
The course is aimed at electrical power engineers and senior operating personnel and it improves skills for operating motor-driven systems at maximum efficiency.
Course Objectives:
- Correct operation of AC motor
- Maintenance of Electrical Motors and Drives
- Identify and correct performance of drive system problems
- Troubleshooting of electrical motors and drives
Who Should Attend?
Electric power engineers and advanced operating staff.
Course Outlines:
- Fundamentals of AC motors –Induction motors-3 phase and single phase – Shaded pole AC motor – Capacitor start motor – resistance start motor- AC synchronous motors- Universal motors repulsion motors –DC Motors
- Operation of Electrical Motors and Drives
- Troubleshooting of Electrical Motors and Drives
- Evaluation of variable speed drives and direct torque control
- Switching an AC drive AC power supplies / frequency converters
- Comparison of types of power switching devices
- Concept of variable frequency drive VSD power conversion
- Variable speed drives system- types and maintenance
- Frequency converter operation and maintenance
- AC motors starting and motor protection
- Power line harmonics of induction motors
- Frequency converters improve the power factor of induction motors
- Frequency converters provide harmonic cancellation
- Frequency converter power ratings
- Frequency converter motor-generator set
- Solid state frequency converter
- Three phase and single phase frequency converters
- Technical specifications of frequency converters according to standards
- Modern Types of Variable Frequency Drives (VFD)
- Magnetic Poles and Frequency as Related to Motor Speed
- Torque Characteristics Motors Operated “Across-the-Line”
- Torque Characteristics of Motors Operated on VFDs
- Effects VFDs on Motor Operation and Life Expectancy
- Maintenance of Electrical Motors and Drives