| Title |
Power Quality Analysis of Jeju System Considering HVDC Overhaul and Wind Turbines |
| Authors |
Woo-Kyu Chae ; Gi-Gab Yoon ; Jae-Eon Kim ; Ji-Hon Han |
| Keywords |
HVDC ; Wind Turbine ; Power Quality ; THD ; Pst |
| Abstract |
Power system of Jeju is interconnected to the mainland using HVDC and that is also interconnected two wind farms. Control of Jeju power system will be difficult if HVDC is disconnected or HVDC is overhauled under large scale wind farms interconnected. We measured and analysed the power quality of two substation and two wind farms to assess that wind farms and HVDC overhaul have an effect on Jeju system or not during the HVDC overhaul. We found that the frequency of Jeju system is very unstable and the voltage distortion excess the limitation. Harmonic currents of wind farms flew into Jeju system in proportion to the power of wind turbine. And the voltage of nearby distribution line was distorted by power of wind turbine when the amount is more that 3,000[㎾]. |