| Title |
Output Control of Wind Farm Side Converter from DC Link for DC Voltage Stabilization with HVDC |
| Authors |
이형진(Lee, Hyeong-Jin) ; 강병욱(Kang, Byoung-Wook) ; 허재선(Huh, Jae-Sun) ; 김재철(Kim, Jae-Chul) |
| DOI |
https://doi.org/10.5370/KIEE.2016.65.9.1479 |
| Keywords |
Low Voltage Ride Through (LVRT) ; High Voltage Direct Current (HVDC) ; DC voltage control ; De-loading ; DC voltage recovery time |
| Abstract |
This paper presents DC voltage recovery time improvement method in DC link of High Voltage Direct Current (HVDC) with offshore wind farm. The wind farm should be satisfied Low Voltage Ride Through(LVRT) control strategy when grid faults occur. The LVRT control strategy indicates actions which have to be executed according to the voltage dip ratio and the fault duration. However, The LVRT control strategy makes between wind farm and power system through DC Link voltage when grid fault occurs. The de-loading scheme is one of the method to control the DC voltage. But de-loading scheme need to long DC voltage recovery time. Thus, this paper proposes an improved de-loading scheme and we analysis DC voltage and active power reference through a simulation. |