Priority analysis for control loops of a wind turbine

Abstract

Coherence of possible control loops is an important issue in power facility management. In wind power engineering, under the instability of wind energy and the possible presence of more than three control loops influencing on wind turbine performance, there is a problem of prioritizing operation of controllers. The method of paired comparisons proposes as an alternative technique of prioritizing control loop operation for wind turbines to improve controllability and, as a consequence, energy efficiency. The result of the study is matrices of paired comparisons and normalized vectors. They can determine the best solution for wind turbine control in order to maximize the power output or to limit the power. The choice of the solution is based on the principle of the simplest inequality. Priority is given to that control method which corresponds to the largest component in the normalized principal eigenvector.