Analysis of power quality on wind power fluctuation during HVDC overhaul period in Jeju island power system

This paper presents the power quality analysis of Jeju island power system connected with wind farms during HVDC system overhaul period on the wind power fluctuation. It is for indicating the influence of wind farm operation in steady and transient state in Jeju island power system. For the computer simulation, three kinds of main item are modeled, which are several wind farms, thermal power plants and Jeju power loads. To analyze the influence of the wind power generation to the Jeju power system on the diverse power penetration, two kinds of simulations are carried out by using the PSCAD/EMTDC program. One is the steady state operation when several wind farms in Jeju island are disconnected from the Jeju power grid instantaneously. With the comparison of these results, it is useful for analyzing the power quality of Jeju power system for penetrating the wind farms to the power grid without any harmful effect.