Aleksei Romanenko

Inverter-induced high-frequency bearing currents are a common root cause of bearing failures in frequency converter-fed motors and generators. Bearing faults are typically identified by vibration measurements. In our work, we experimentally submit bearings to electric discharge machining (EDM) bearing currents, use different means to measure the electrical stress placed on the bearings, measure the resulting vibration signal, and apply signal processing for feature extraction. The final goal of the research is to develop a method of diagnosing bearing failure early on so it can be replaced before causing damage to the machine.