Advanced Motor Drives Training Course

MD 201 - Advanced Motor Drives

The advanced motor drives training course specifically focuses on AC motor drives and their applications. This course helps you to understand the operation of induction motor drives and synchronous motor drives and empowers you to apply the information for any other designs. The course starts with induction motor drives, their operating principles, and practical applications. Equivalent circuit diagrams of induction motors and their principles of operation will be covered. Next, classification of variable-frequency converters for induction motordrives will be covered. These converters can be divided into pulse width modulated (PWM) motor drives, square wave drives, and current source inverter drives.


Finally, the course covers the basic principles of synchronous motor operation, synchronous serve motor drives with sinusoidal waveforms, synchronous servo motor drives with trapezoidal waveforms, and load-commutated inverter drives.

Training Participants

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

      • Any individual with a basic knowledge about the motor drives who needs to understand complex analysis and components of motor drive devices. Non-electrical engineers who are involved in the projects related to operating and designing motor drive devices.
      • Engineers and technical personnel, mostly senior-level, from various industries who need to deeply understand how the motor drives that are being used in their processes work.
      • Engineers who are responsible for problem diagnosis/resolving or the adjustment of the motor drives based on a certain process.
      • The research and development personnel of companies, research labs, and academic centers who need to work closely with motor drives and adjust them according to the projects’ goals.
Course Objectives

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

      • Understand the fundamentals of motor drives.
      • Learn the feedback control for motor drives.
      • Use space vectors for AC machine analysis.
      • Learn the basics of sinusoidal permanent magnet machine drives.
      • Analyze the induction motor operation.
      • Design a variable speed drive for induction motors.
      • Understand the operation of voltage source inverters in motor drives.
      • Learn the synchronous motor drive operation.
      • Design different methods to control induction motors.
Course Outline

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

Brief Overview
      • Overview of the basics and fundamental of motor drives
      • Definitions and applications used in motor drives
How to Design Feedback Controllers for Motor Drives?
      • Introduction to feedback controllers
      • Objectives of controlling systems
      • What is cascade control structure?
      • Step-by-step development of feedback controllers
      • Controller design
      • What is the role of feed-forward in the control system?
      • What are the effects of limits?
      • What is non-windup integration?
AC Machines and Space Vectors
      • Introduction to the AC machines
      • What are sinusoidally-distributed stator windings?
      • The application of space vectors in the air gap
      • What is balanced sinusoidal steady-state excitation?
Sinusoidal Permanent Magnet AC (PMAC) Drives
      • Introduction to the PMAC drives
      • What is the basic structure of PMAC drives?
      • What are the principals of operation of PMAC drives?
      • What is the controller and the power-processing unit (PPU)?
      • Load-commutated-inverter (LCI) supplied synchronous motor drives
      • What are synchronous generators?
Induction Motor Operation
      • Introduction to induction motors
      • Three-phase induction motors
      • What are the principals of operating induction motors?
      • How to test to acquire the parameters required for the per-phase equivalent circuit?
      • What are the characteristics of induction motor at magnitude and frequency rated voltages?
      • What is NEMA design?
      • What is the definition of line start?
      • What is the “soft start” of induction motors?
      • What are energy savings in lightly loaded machines?
      • The applications of Doubly-Fed Induction Generators (DFIG) in wind turbines?
How to Control Speed in Induction Motor Drives?
      • What are the conditions for efficient speed control over a wide range?
      •  What should be the applied voltage amplitudes to keep Bms=Bms,rated?
      • What are starting conditions in motor drives?
      • What is the capability of motor drives to operate below and above the rated speed?
      • What is induction-generator drives?
      • How to design the speed control of induction motor drives?
Induction Motor Drives
      • Speed control by varying stator frequency and voltage
      • Impact of nonsinusoidal excitation in induction motors
      • Variable-frequency converters
      • Variable-frequency PWM voltage source inverter drives
      • Variable-frequency square-wave inverter drives
      • Variable-frequency current source inverter drives
      • Line-frequency variable voltage drives
Synchronous Motor Drives
      • Synchronous motor operation
      • Synchronous servo motor drives with sinusoidal waveforms
      • Synchronous serve motor drives with trapezoidal waveforms
      • Load-commutated inverter drives
      • Cycloconverters