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DFIG Principles Training System



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.

Topic Coverage

  • 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
  • Doubly-Fed Induction Motors
  • Doubly-Fed Induction Generators

List of equipment

Qty Description
1 Tabletop Workstation 8134-2
1 Three-Phase Wound-Rotor Induction Machine 8231-B
1 Resistive Load 8311
1 Three-Phase Transformer Bank 8348-4
1 Three-Phase Power Supply 8823
1 IGBT Chopper/Inverter 8837-B
1 Rectifier and Filtering Capacitors 8842-A
1 Timing Belt 8942
1 Connection Lead Set 8951-L
1 Four-Quadrant Dynamometer / Power Supply with Manual and Computer-Based Control 8960-C
1 Data Acquisition and Control Interface 9063-C
1 AC 24 V Wall Mount Power Supply 30004-2

Additional equipment required to perform the exercises

Qty Description
1 Digital Multimeter 8946-2


Qty Description
1 Software Development Kit (SDK) 8968-7
1 SCADA for LVDAC-EMS 8973
1 Software Development Kit (SDK) 9069-9


Qty Description
1 CD-ROM - PDF Manuals 86367-A

Spare Part

Qty Description
1 Timing Belt 8942
1 Connection Lead Set 8951
1 Fuse SB 5.0 A 71603

Optional Equipment

Qty Description
1 Full-Size Blank EMS Module 8160
1 Half-Size Blank EMS Module 8161
1 DC Motor/Generator, Cut-Away 8211-C
1 Four-Pole Squirrel-Cage Induction Motor, Cut-Away 8221-C
1 Three-Phase Wound-Rotor Induction Machine, Cut-Away 8231-C
1 Synchronous Motor/Generator, Cut-Away 8241-C
1 Capacitor Start Motor, Cut-Away 8251-C
1 Multimeters Module 8946-A
1 Personal Computer 8990
1 All-in-One Touch Screen Computer (including Monitor Stand with Articulating Arm) 8990-A
1 All-in-one computer 20628
1 Touch-Screen Computer 46299
1 Touch-Screen Computer – Large 46299-A


Qty Description
1 Mobile Workstation 8110-2
1 Storage Shelves 8150-1
1 Dust Cover for Workstations 8991
1 Dust Cover for EMS Storage Cabinet 8992
1 Three-Phase Power Receptable - NEMA L22-20 24183
1 Three-Phase Power Receptable - NEMA L21-20R 24582
1 Three-Phase Power Receptacle - 5-Pin Round 35153
1 External Shelf for the Mobile Workstation 36653
1 Mounting Stand with Articulating Arm 36653-A
1 Mobile Base 88863


DFIG Principles Training System
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The above chart shows all courses in the Electric Power Technology Training Program. Blue boxes highlight courses included in the training system covered in this datasheet, while dark grey boxes, if any, highlight courses that can be optionally added to this training system.
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