Research on method of identifying cable-releasing logic defects in wind turbines

Abstract

The yaw system of a wind turbine is one of the important components that ensures the normal operation of the turbine and has a significant impact on the power generation of the turbine. Currently, there is little research on the cable-releasing logic in the yaw system. This paper analyzes the possible logical defects in the cable-releasing system and examines the cable-releasing logic of the turbine by using a method based on its operational logic. By subdividing the turbine’s state using information such as power, wind speed, and yaw angle from operational data, abnormal cable-releasing events can be identified through logical filtering to detect whether there are logical defects in the turbine’s cable-releasing logic. The reliability of the method was verified by using examples from turbines that did have cable-releasing logic defects.