Xcel Tames the Wind

摘要

A new relay detects subharmonic oscillations, enabling utility to curtail wind generation when system stability is threatened. The demand for renewable energy has spurred dramatic growth in the number of wind farms in North America and around the world. For more than a decade, Xcel Energy has played a pivotal role in the commercialization of wind energy and has upheld its commitment to provide clean, renewable energy at a reasonable cost to its consumers. While the environmental and economic advantages are exciting, wind technology does present interesting engineering challenges, as well. As the mix of generation sources shifts, it is critical to thoroughly understand potential impacts of the interactions between the variety of generation sources and the bulk electric power system, especially during system disturbances.