Voltage regulation (VR) is a procedure to keep voltages in a distribution network (DN) within normal limits. Conventionally, a voltage regulator can read voltage levels from predefined measures, and regulate the voltages. However, due to lacking of a distributed generator’s (DG) information, the unexpected electricity from a DG will mislead readings on voltages levels, so as to disturb the VR i...

This paper discusses a systematic method for deriving basic converter configurations that achieve power factor correction (PFC) and voltage regulation. The discussion begins with a general three-port representation of power supplies that provide PFC and voltage regulation. Based on this representation and a power flow consideration, a systematic procedure is derived to generate all possible min...

This paper proposes a new method to analyze the steady performance of a stand-alone self-excited induction generator (SEIG). The entire system consists on a three-phase induction generator excited with three capacitors-bank and an inductive load. The non linear equations are firstly developed by applying the nodal current approach to the per-phase induction generator, the eventual set of equati...

This paper presents actual cases of steady reactive power oscillation of Distributed Generations (DGs) during parallel operation with the main grid. The cause of the problem was found to be the adverse effects of excitation system voltage regulation. It is shown, through preliminary investigation and detailed simulation studies, that how the excitation control system can be modified to overcome...