O&M and Asset Management
Presentation Description: Electrical Signature Analysis was initially developed in the 1980s by Oak Ridge National Labs for the testing of motor operated valve machines and mechanical components. The technology has experienced growth and use within power generation and commercial/industrial applications through the 1990s to the present with the application within wind gaining use in 2018. From 2017, it has been applied for the detection of fractured wye rings in DFIG machines, bearings, wedges, developing stator and rotor shorts, gearbox gears and bearings, main shaft bearings and blade defects. The technology has also been applied to permanent magnet and induction machines as well as supporting motors and gearboxes. The technology is used for both data collection and continuous monitoring.
In this presentation we will discuss the application that electrical signature analysis, which utilizes voltage and current data from the generator stator and rotor (in DFIG), for wind power applications including the success within shore-based turbines. We will discuss the type of data, how it is analyzed, and confidence rating for fault detection through the system based upon shore data.