Modelling and analysis of functional modes of active compensators in distributed generation systems

The modelling and analysis of functional modes of active compensators in conditions of distributed generation are presented in the paper. The functions of uninterruptable power supply, harmonic compensation, power factor correction by means of the shunt active compensator with the output passive filter and the common direct current link with the load power converter are detected during modelling. The dependences, which help to properly choose the structure and main parameters of the active compensator for implementation of the mentioned functions, are obtained during modelling. According to the modelling results the structure of the shunt active compensator is proposed and proved for conditions of distributed generation and combined power supply systems.