Wireless system for monitoring wind turbine generators

Intensive research effort has been focused on the Signature Analysis (SA) to detect electrical and mechanical fault condition of induction machines. Different sensors can be used: voltage, current, flux, power. In the case of current sensors (CSA) the interpretation of one-phase current spectrum or the three-phase current space vector spectrum provides direct information on the presence of abnormal conditions. With proper operative condition a similar interpretation can be obtained by using flux sensors (FSA). In this paper, in order to propose a diagnostic system oriented to wind turbine generators and in order to pass from wired systems to wireless systems, a suitable procedure will be studied.