Analytical Calculation of the RMS Value and the Spectrum of the DC-Link Current of a Dual-Inverter

This article is focused on the analytic definition of dc-link current a dual-inverter. Therefore, two-level dual-inverter for driving two independent three-phase electrical motors considered. Space-vector modulation taken into account as method inverter. Based that, an description derived frequency spectrum well rms value Contrary to definitions known from previous publications, expressions presented below are defined in solved form. use integral or differential equation not necessary. In this way, basis created calculating without computationally intensive numerical integration processes SPICE simulations. Furthermore, includes metrological verification novel expressions. The results discussed publication provide stabilizing HV-dc system and minimizing capacitor load. Thus, they enable be downsized. form, possibility real-time optimization created. outlined form foundation derive control multiphase