This 15-minute video, Variable Speed ​​Drives Explained – IGBT Inverter VFD Basics, shows how they work in the field of electrical and power electronics.

        This 15-minute video, Variable Speed ​​Drives Explained – IGBT Inverter VFD Basics, shows how they work in the field of electrical and power electronics. It demonstrates where and why VFD or VFD, AC, DC, single phase, three phase, frequency, rectifier, DC bus, inverter, capacitor and pulse width modulation (PWM) are used. This is part of a series located here.
       This 116-page article, Improving Motor and Drive System Performance: An Industry Guide, from the U.S. Department of Energy’s Industrial Technology Program (ITP), presents a systems approach, signs of poor system design, motor types and performance characteristics, and shows how to select motors and drives for their applications.
        This 43-minute Introduction to Motor Drives video by Jim Pytel of Big Bad Tech talks about power electronics, which vary the speed and torque in the direction of a motor by varying the amplitude and frequency of the applied voltage. It also covers the following functions: influence on synchronous speed, discusses rectification, inversion and filtering, and reviews motor drive characteristics and programming.
       This online library, Design, Test, and Text Accelerated Motors and Drives, contains eBooks, white papers, and case studies on motor and drive system testing, efficient motor design, measurement problems, AC dynamics, and other topics.
        This 38-minute video, Drives 101: Basic AC Drive Functions, shows how to control motor speed, save energy, and develop control strategies. It also covers pulse width modulation (PWM), constant torque loads, affinity laws for centrifugal loads, digital/analog inputs, slip compensation, braking techniques, and other topics.
       There is also a link to a second 27-minute video, AC Drive Installation Considerations, which provides strategies, best practices, and technical tips.
       This online article, Types of Motor Drivers, covers AC and DC drives and the motors that rely on them, servo motor drivers, controllers and applications, and stepper motors and applications.
        This eight-minute video by Craig Hartman, “How to Troubleshoot and Diagnose a Dead VFD,” provides instructions on how to test various parts of the system to diagnose a dead VSD or an VSD that is not receiving power. A step-by-step guide to panels that display error codes or have operational problems. It also shows how to check the maximum frequency, set the acceleration time, disconnect the motor and measure the cables.
       Steve Quist’s second five-minute video, How to Wire a VFD, provides instructions for wiring a Mitsubishi D700 Series single or three phase VFD.
       This online article, Education: AC Motor Fundamentals, by Jeff Payne covers the basic components of three-phase induction (induction) and synchronous AC motors, namely the stator and rotor, as well as rotating fields, soft starters, and variable frequency drives, tools management and general applications.
        In this seven-minute video, “What’s the Difference Between Variable Frequency Drives and Soft Starters?” their internal workings and applications are covered so that users can determine what they might want to implement. For example, it shows how a typical three-phase soft starter uses six thyristors or back-to-back thyristors to softly start a motor.