Dynamic Line Ratings Predicted with Computational Fluid Dynamics Simulations in Complex Terrain

摘要

The maximum capacity of transmissions lines is traditionally calculated used static ratings of the conductor using predetermined environmental conditions assuming very little wind. The use of computational fluid dynamics (CFD) simulations coupled with local weather station data can potentially be used to give more accurate predictions of maximum line capacities, which are typically underestimated. Here, the region of investigation is a complex area of study named Hell's Canyon, the deepest river gorge in North America, located along the border of Idaho and Oregon. The Snake River flows 1600 meters below the west rim, and 2300 meters below mountain peaks to the east. This area is of interest due to the hydroelectric dams in the region.