测控技术2009，Vol.28Issue(11)：23-25,3.
压气机气动失稳先兆检测快速算法的研究
Research for a Rapid Detection Method of the Aerodynamic Instability Inception of a Compressor
刘勃 1雷勇1
作者信息
- 1. 西北工业大学动力与能源学院,陕西,西安,710072
- 折叠
摘要
Abstract
To execute online warning and active control for aerodynamic instability of compressors, aerodynam-ic instability inception must be detected accurately and timely. Computation and analysis variance of outlet total pressure signal around loosing compressor aerodynamic stability of certain engine, and corresponding analysis results demonstrate that the variance has evidently increased and the method can detect inception signal of aer-odynamic instability of the compressor 0.04 s in advance. Besides, an improved variance method on the basis of variance method is proposed. The improved method detects inception signal 0.07 s earlier than the variance. For the advantages of less operation and high computing speed, the improved variance algorithm can be applied in engineering practice to achieve real-time active control for aerodynamic instability of compressors.关键词
压气机/气动失稳/主动控制/改进的方差法Key words
compressor/ aerodynamic instability/ active control/ improved variance method分类
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刘勃,雷勇..压气机气动失稳先兆检测快速算法的研究[J].测控技术,2009,28(11):23-25,3.
