Doubly Fed Induction Generators (Part 1 of 2)

This video, from Columbia Gorge Community College, is the first of a two-part series on doubly fed induction generators (DFIG). In the video, instructor Jim Pytel introduces the concept of DFIGs and contrasts them with traditional synchronous and induction generators. 

During the video, Pytel discusses technical aspects of DFIGs, describing how they combine the benefits of both synchronous and induction generators. The operational principles of DFIGs, including their ability to operate in both sub-synchronous (hyposynchronous) and super-synchronous (hyper-synchronous) modes are covered. How DFIGs use bidirectional AC-to-AC converters to manage power extraction from the rotor is also explained. The advantages of DFIGs are highlighted and a discussion on the comparative costs and complexities of full conversion synchronous generators versus partial conversion DFIGs is included.

The video runs for 15:16 minutes. The second part of the series is available to view separately.