Electric Stress in Power Electronics Applications

Voltage quality is a major issue for several appliances in today's electric power systems. Distorted voltage waveforms caused by power electronics devices can dramatically reduce the useful life of dielectrics, e.g., filter capacitor banks or power factor correction capacitor banks. This paper aims at investigating how different power electronics control schemes can affect the dielectric ageing and, in doing so, it aims at providing a feasible and sustainable electric stress monitoring framework. The two considered control schemes adopted are the classical SPWM and SPWM with sequential command.