The DFIG Principles Training System combines a modular design approach with computer-based data acquisition and control to provide unrivaled training in the basic principles of the doubly-fed induction generator (DFIG) to students that already have a sound knowledge of three-phase ac power circuits, rotating machines, and motor drives. The system features the Four-Quadrant Dynamometer/Power Supply, Model 8960, and the Data Acquisition and Control Interface, Model 9063, two state-of-the-art USB peripherals that greatly enhance the learning experience of students.
Training begins with the Three-Phase Wound-Rotor Induction Machine course. This course familiarizes students with the fundamentals of the three-phase wound-rotor induction machine, which can be used as a doubly-fed induction motor as well as a doubly-fed induction generator. The course covers the operation of the machine both with a short-circuited rotor and with rotor resistance.Students then continue with the Principles of Doubly-Fed Induction Generators (DFIG) course. This course covers in detail the main components as well as the operation of doubly-fed induction generators. It explains how and why DFIGs are commonly used in wind turbines designed for large-scale production of electricity. The course also allows students to experiment with an actual doubly-fed induction generator implemented with power electronics modules and a three-phase wound-rotor induction machine.
Features & Benefits
The training system teaches the principles of doubly-fed induction generators (DFIGs), including the operation of three-phase wound-rotor induction machines, which are used to implement DFIGs.
The course curriculum of the Electric Power Technology Training Program is highly flexible and allows a multitude of different customized training solutions.
The courseware includes student manuals and instructor guides with all the theory required to perform the hands-on experiments.
All workstations, modules, and components are sturdy and protected against electrical damage to ensure a prolonged service life in a demanding environment such as a training laboratory.
The modular design approach of the training equipment allows a large variety of courses to be performed using a small number of modules, without unnecessary duplication of equipment.
All electrical components can be interconnected without electric shock hazard since all live parts of the connection leads are concealed and insulated.
All electrical symbols representing the components used in a laboratory exercise are clearly silk-screened on the front panel of the modules.
The training system includes two highly versatile USB peripherals:
Four-Quadrant Dynamometer/Power Supply, Model 8960-2. This module can be mechanically coupled to all rotating machines to operate as a prime mover or brake.
Data Acquisition and Control Interface, Model 9063. This module gives access to a large variety of computer-based measuring instruments and is used to control the various dc power electronics devices necessary to DFIG operation. All functions are implemented via the LVDAC-EMS software.
The training system also includes two highly versatile power electronics modules controlled using the Data Acquisition and Control Interface:
IGBT Chopper/Inverter, Model 8837-B. This module is used to implement the three-phase PWM inverter for DFIG operation.
Rectifier and Filtering Capacitors, Model 8842-A. This module is used to implement the three-phase rectifier for DFIG operation.
Three-Phase Wound-Rotor Induction Machine with a Short-Circuited Rotor
Three-Phase Wound-Rotor Induction Machine with Rotor Resistance
Three-Phase Wound-Rotor Induction Machine Used as a Synchronous Machine