转速频率 meaning in English
speed frequency
Examples
- It can also determine the fault spot and reason . this technology has been used in some technological fields and proved efficient . it has promoted the revolution of maintance system and the historial protection is replaced by preventive maintenance . with this technology , we can improve the reliability of machine and decrease the maintance fee . recently , reserch has pick up a fervent pace in the area of fault diagnosis of electrical machines . the paper simply analyzes the fault reason of electrical machines , stressly describes and explores the methods of condition monitoring and fault diagnosis such as partial discharge , stator current , rotating speed , vibration etc . fault prognosis is now include diagnostic feature , reason , spot . prodigious improvement in signal processing hardware and software has made this possible . primarily , these techniques depend on locating specific harmonic components of the fault . these harmonic components are usually diffirent for diffirent types of faults . automated tools such as fuzzy logic based system is also simply presented in the paper
本文从绝缘结构的故障机理入手，以绝缘结构故障的典型特征? ?局部放电为研究对象，重点讨论局部放电的在线监测方法、适用场合并比较它们的优缺点；在分析笼型异步电机转子断条在线监测的定子电流监测方法后，根据其缺陷，本文探讨了温升不平衡法、希尔伯特变换数字滤波、小波包分析法的原理及优点；以电机轴承、气隙偏心等故障为研究对象，通过对电机振动和转速频率的检测，诊断电机的故障类型；本文的重点工作是将人工智能技术中的模糊技术应用于电机的状态监测和故障诊断中，力求使电机故障诊断更接近人工智能化；最后，本文对电机状态监测和故障诊断系统进行了硬件和软件初步设计，为实现预测维修提供了有效的技术手段。