GIANOGLIO , C.

The purpose of this work is to analyze how the presence of combined AC-DC voltages can influence the partial discharge (PD) activity. A DC offset can be introduced by power electronics components affecting the partial discharge inception voltage (PDIV). If the PD phenomenon is the main cause of the electrical insulation degradation, the...

In order to recognize on-line different kind of defects where partial discharges take place it is necessary to employ an embedded acquisition system, possibly low-cost, near to the discharges site. Such acquisition system should be capable to analyze the acquired data in real time to recognize different defect sources. For this reason, a single...

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The main insulating system components of stator windings of rotating electrical machines are organic enamel and impregnating resin. When power electronic converters supply motors, the stator insulation system is subjected to voltage waveforms such as PWM composed by trains of pulses. Due to reflection phenomena, overvoltage can be associated to...

The paper addresses the role of randomization in the training process of a learning machine, and analyses the affinities between two well-known schemes, namely, Extreme Learning Machines (ELMs) and the learning framework using similarity functions. These paradigms share a common approach to inductive learning, which combines an explicit...