Study On Voltage Regulation Of Distribution Networks After Grid Connected Of Distributed Generation

Distributed generations are applied in power system more and more widely, but the increasing number of distributed generations brings about some technical problems. The paper mainly studies the influence on voltage by introducing the distributed generations into the distribution network and voltage regulation. The thesis firstly introduces simply four popular distributed generation techniques, secondly uses the algorithm of superposition principle to analyze voltage profile after introducing DG, mainly studies the influence of voltage in distribution network caused by the varieties of size, location and power factor of DG, then proposes an algorithm of optimal access point according to the access point problem of DG in the radiation distribution network. In order to analyze the influence of voltage in distribution network after introducing DG more accurately, this paper establishes the new ASVG simulation model to regulate voltage. In the end, the simulation results improve the feasibility of the proposed method when DG is in or out of the distribution network.