摘要
基于免疫系统的基本原理,提出了一种用于异步电动机故障诊断的新方法。根据免疫系统中T细胞和B细胞的机能,分别建立了T模块和B模块。T模块用来区分电动机的正常状态和故障状态,B模块用来改进T模块在故障诊断空间的覆盖。T模块具有自适应功能,可以根据探测得到的信息调整其状态位置,便于将来更好地进行故障诊断。B模块采用变异和克隆机制,具有学习、记忆等功能,有利于诊断知识的扩充。通过测量异步电动机定子电流频谱,采用T、B模块成功地诊断出电动机的转子断条故障,证明了该方法的正确性和有效性。
Based on the principles of the immune system, a new method of fault diagnosis for squirrel-cage motors ispresented. According to the functions of the T cells and B cells of the immune system, T-module and B-module are established,among which the T-module is established for discriminating normal states from fault states, and the B-module is established for improving the diagnostic space coverage of the T-module. The T-module has an adaptive function, and it can adjust the positions of the states for better diagnosis in accordance with the signals obtained. By means of mutation and cloning, the B-module is capable of learning and memory, thus it is useful for the expansion of diagnosis information. Used the statorcurrent frequency spectra of the squirrel-cage motor, thismethod has successfully diagnosed broken rotor bars,confirming the validity and efficiency of the approach.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2003年第6期132-136,共5页
Proceedings of the CSEE
基金
国家留学基金项目 (留金出(2001)3048号)
