159 / 2016-11-18 22:32:50

Research on Condition Assessment of Pitch System Based on Fuzzy Matter-element Analysis

Pitch system,Fault detection,Fuzzy matter-element,Short-term reliability

In order to assess and improve the real-time reliability of wind turbine and to optimize maintenance strategy, the assessment method of fuzzy matter-element analysis assessment method is proposed. The pitch system, which has high failure rate, is researched in this Paper. Firstly, by combining with collecting data of supervisory control and data acquisition (SCADA) system, it introduces the feature parameter source and pretreatment methods. Then, the fuzzy matter-element analysis theory is used to establish a condition assessment model of the pitch system. The combination of the between fault detection model based on normal operation data and the assessment method realizes the unification of fuzzy value of detection results and grade assessment. Finally, an example shows that the fuzzy matter-element analysis method can be used to effectively reflect the pitch system, and compared with the conventional method, it has better effects.