Introduction to Motor Drives Training Course

MD 101 - Introduction to Motor Drives

This introduction to motor drive course covers the basics of power electronics converters for motor drive applications and specifically covers the DC motor drive systems. This course helps you understand the basics of DC motor drives and understand how to select the motor drive components for maximum efficiency. The course covers the mechanical considerations for the motor drive selection, thermal limits of motors, compatibility of motor drives with the motor, and voltage/current ratings of the drives.


In addition, the introduction to motor drives covers the equivalent circuits of DC motors including permanent magnet and servo motors. Next, the operation and analysis of servo motor drives with power electronics converters are covered. Finally, the course introduces the adjustable-speed DC drives with their switchmode DC-DC converters and a few practical design exercises will be used.

Training Participants

The motor drive is a 2-day course aimed to train:

      • Any individual from industry, government, or academia who needs to understand, use, or operate any form of a motor drive.
      • Those individuals who are involved with trading motor drive devices.
      • Government and state personnel who are involved in projects using motor drives.
      • Government entities associated with distributing grants for components purchases, and thus need to understand the concepts and theories of motor drive devices.
      • Grant writers working on projects involving motor drives who need a brief and quick introduction to the concepts and operations of these devices.
      • Operators from various industries, mostly entry- and mid-level, who work closely with motor drives.
      • Non-technical personnel of companies, such as in marketing, finance, and executive sectors, who need to know the basis of motor drives.
      • Individuals with interests in financial investment in purchasing industrial scale motor drives.
      • All non-electrical engineers who are working on any project that requires the knowledge of motor drives.
      • Utility operators, mostly entry- and mid-level.
      • Non-technical personnel of utility companies who need to know the basis of motor drive systems, such as in marketing, finance, and executive sectors.
      • All non-electrical engineers who are working on any project that requires the knowledge of motor drive system.
Course Objectives

Upon completion of the introduction to motor drive course, the participants will be able to:

      • Fully understand the components of an electric motor drives.
      • Learn the mechanical requirements for development of motor drive systems.
      • Understand the concept of 4-quadrant operating modes.
      • Understand various types of motor loads in motor drive applications.
      • Analyze three-phase circuits used in motor drive applications using space phasor.
      • Learn the basics of converters used in motor drives.
      • Get familiarize with three-phase converters operation.
      • Learn the basics of magnetic circuits for motor drive applications.
      • Understand the fundamentals of electromechanical energy conversion systems.
      • Learn various types of DC motors operation.
      • Analyze DC motors in different operating conditions.
      • Understand various motor drive circuits applied in DC motors.
      • Understand the operation of adjustable speed DC motor drives.
      • Learn the basics of permanent magnet and servo motor drives.
Course Outline

The following contents will be covered in the introduction to motor drives course; however, they can be adjusted to the client’s need:

Basic Principles
      • Background of motor drives
      • Definition of an electric-motor drive
      • Key factors in advancing motor drive
Mechanical System of Electric Drives
      • Linear motion systems
      • Rotating systems
      • Friction
      • Torsional resonances
      • Some analogies related to motor drives
      • Coupling mechanism
      • Loads category
      • Four-quadrant operation
      • Steady-state and dynamic operations
      • Sinusoidal steady state and phasor representation
      • Three-phase circuits
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  • Switch-Mode Power Electronic Converters
      • Power Processing Units (PPUs)
      • DC motor drives converters
      • Low-frequency AC synthesis
      • Three-phase inverters
      • Power semiconductors
Magnetic Circuits
      • Current-carrying conductors generate magnetic fields
      • What is flux density
      • How do magnetic structures with air gaps look like?
      • What are inductances?
      • Introduction to Faraday’s Law
      • How do transformers work?
      • Do permanent magnets exist?
Electromechanical Energy Conversion
      • Introduction
      • What is the basic structure of this system?
      • How is magnetic field produced?
      • What are the fundamentals of operating electrochemical energy conversion?
      • How can basic principals be applied in various scenarios?
      • What is energy conversion?
      • What are the power losses in the system and how do they affect the energy efficiency?
      • What are machine ratings?
DC-Motor Drives; Electronically Commutated Motor (ECM) Drives
      • Introduction to DC-motor drives
      • What is the structure of the DC machines?
      • What is the circuit equivalent to DC-machine?
      • What are operating modes in DC-motor devices?
      • What are ECMs?
Introduction to DC-motor drives
      • What is the structure of the DC machines?
      • What is the circuit equivalent to DC-machine?
      • What are operating modes in DC-motor devices?
      • What are ECMs?