Overview

Due to environmental pollution and climate change, the use of renewable energy sources as alternative means of power generation is on the rise globally. This is because of their clean nature, making them ecofriendly with little or no pollution compared to the traditional fossil fuel power generation power plants. Amongst the various renewable energy sources, wind energy is one of the most widely employed, due to its promising technology. Wind turbine technologies could be classified into two groups as follows: Fixed Speed Wind Turbines (FSWTs) and Variable Speed Wind Turbines (VSWTs). There has been tremendous improvements on wind turbines technology over the years, from FSWTs to VSWTs, as a result of the fast innovations and advanced developments in power electronics. Thus, the VSWTs have better wind energy capture and conversion efficiencies, less acoustic noise and mechanical stress, better power quality in power grids without support from external reactive power compensators due to the stochastic nature of wind energy. The two most widely employed VSWTs in wind farm development are the Doubly Fed Induction Generator (DFIG), and the Permanent Magnet Synchronous Generator (PMSG) wind turbines. In order to solve transient stability intricacies during power grid faults, this book proposes different control strategies for the DFIG and PMSG wind turbines.