The Comparative Analysis of Processes in Active Front End (AFE) for Cases of Different Power Sources

The article presents the comparative analysis of influence of different power sources connected to an active front end on processes in the supply grid of limited capacity. The mathematical model of an active front end control system for cases with different power sources (generators) is developed and analyzed. The algorithms of forming generic control system of active front end are described and analyzed. The results show that power sources, such as ideal DC power source, battery and induction motor in the slip power recovery mode, have almost similar power quality characteristics It allows using simpler methods of power supply system analysis in case of presence of additional power sources based on active front end.