Typically, in laboratory and diagnostics tests focused on measuring partial discharges, a
pure sinusoidal voltage waveform is assumed. However, in practice the spectral content of …

This paper describes continuation of author's works on the impact of PWM waveforms
characterized by ultra-short rise times on PD characteristics in high voltage insulation …

The frequent use of variable speed drives fed by pulse width modulated (PWM) inverters
allow for a more efficient utilization of electric energy. The drawback is however that the …

Power electronics switching devices currently represent the dominant technology for
supplying low voltage (LV) electric motors. The fast switching processes exert a different …

This article depicts an original measurement methodology and detection approach for
determining the influence of a magnetic field on partial discharge (PD) dynamics in electrical …

The use of pulse width modulated (PWM) waveforms allows more flexible energy
applications and management. The downside is that under such operating conditions the …

The benefits of employing multilevel pulsewidth-modulated (PWM) waveforms for diagnostic
purposes compared to sinusoidal-and square-shaped voltages are presented in this paper …

Researchers and designers of insulation systems are facing new challenges due to the
ubiquitous presence of power electronics devices in power conversion applications across …

This paper describes a new and intriguing observation relating to partial discharges
specifically those discharges which occur despite the absence of an applied voltage within …

In order to investigate partial discharge behavior, its mechanism and dynamics, a novel
methodology-chopped partial discharges-has been elaborated. Typically, either during …