Grid side converter is an invertor, connected from the grid side. It has the general task of maintaining constant voltage on the DC side.
Published in Chapter:
Strategies for Protection Systems of Wind Turbines With Doubly Fed Induction Generator: Control Strategies and Techniques for Fault Ride Through of Doubly Fed Induction Wind Generator
Dmitry Ilyin (Moscow Power Engineering Institute, Russia), Tatiana Shestopalova (Moscow Power Engineering Institute, Russia), Alexey Vaskov (Moscow Power Engineering Institute, Russia), and Aung Ko (Moscow Power Engineering Institute, Russia)
Copyright: © 2019
|Pages: 22
DOI: 10.4018/978-1-5225-9179-5.ch011
Abstract
Doubly fed induction generator (DFIG) is a widely spread technology in modern wind turbines (WT) due to its capability to operate with variable speed, partial scale power converter, and ability to control active and reactive power independently. The main drawback of DFIG is its complicated protection systems. In the chapter, several strategies for DFIG protection are reviewed, and the authors provide a conclusion about their advantages. Penetration of renewable energy sources (in particular, wind power) have a huge impact on power systems; thus, wind turbines should be considered as conventional generation units in terms of frequency and voltage regulation. Modern grid codes require WT stay connected during grid fault and be capable to provide appropriate grid support. Therefore, it is important to implement a DFIG protection system that could meet grid code requirements.