The signal demodulation techniques

Yassine Amirat (1, 2) , Mohamed Benbouzid (3)

1 YO - YNCREA OUEST
2 LABISEN-ESE - Energie et Systèmes Electromécaniques
3 IRDL - Institut de Recherche Dupuy de Lôme

Condition monitoring of electrical machines is a broad scientific area, the ultimate purpose of which is to ensure the safe, reliable and continuous operation of electrical machines. Hence, the task of fault detection is still an art, because induction machines are widely used in variable speed drives and in renewable energy conversion systems. A deep knowledge about all the phenomena involved during the occurrence of a failure constitutes an essential background for the development of any failure detection and diagnosis system. For the failure detection problem, it is important to know if a failure exists or not in the electric machine via the processing of available measurements. This chapter provides then an approach based on a electric machine current data collection and attempts to highlight the use of demodulation techniques for failure detection for stationary and nonstationary cases.

Domaines: Energie électrique

Yassine Amirat, Mohamed Benbouzid. The signal demodulation techniques. Signal Processing for Fault Detection and Diagnosis in Electric Machines and Systems, Institution of Engineering and Technology, pp.51-83, 2020, ⟨10.1049/PBPO153E_ch2⟩. ⟨hal-03134893⟩