Univ Lille Nord de France, F-59000 Lille, France.
Sensors (Basel). 2010;10(11):10448-66. doi: 10.3390/s101110448. Epub 2010 Nov 18.
This paper presents an original non-invasive procedure for the diagnosis of electromagnetic devices, as well as AC electrical rotating machines using two external flux coil sensors that measure the external magnetic field in the machines' vicinity. The diagnosis exploits the signal delivered by the two sensors placed in particular positions. Contrary to classical methods using only one sensor, the presented method does not require any knowledge of a presumed machine's healthy former state. On the other hand, the loading operating is not a disturbing factor but it is used to the fault discrimination. In order to present this procedure, an internal stator inter-turn short-circuit fault is considered as well.
本文提出了一种用于诊断电磁设备和交流旋转电机的原创非侵入式方法,使用两个外部磁通线圈传感器测量机器附近的外部磁场。该诊断利用放置在特定位置的两个传感器所传递的信号。与仅使用一个传感器的传统方法不同,所提出的方法不需要任何关于假定机器健康前状态的知识。另一方面,负载操作不是一个干扰因素,而是用于故障识别。为了介绍这个过程,还考虑了内部定子匝间短路故障。