| Title |
DC Voltage Build-Up Suppression Scheme of HVDC System for Offshore Wind Farm Connection using Chopper Resistor and de-loading |
| Authors |
이형진(Lee, Hyeong-Jin) ; 강병욱(Kang, Byoung-Wook) ; 김재철(Kim, Jae-Chul) |
| DOI |
https://doi.org/10.5370/KIEE.2017.66.5.750 |
| Keywords |
Offshore wind farm ; High Voltage Direct Current(HVDC) ; Low Voltage Ride Through(LVRT) ; Chopper resistor ; De-loading ; PSCAD/EMTDC |
| Abstract |
This paper presents a method for DC voltage control of HVDC system connection of offshore wind farms. In the event of fault in AC grid, HVDC system need to meet LVRT regulations. When HVDC system meet LVRT regulation, unbalance is caused between power input and power output for DC link. Therefore, LVRT regulation lead to DC voltage increase of HVDC system. To control the DC voltage increase, the chopper resistor can be suggested. In this paper, DC voltage suppression is proposed using chopper resistor and de-loading. The effectiveness of the chopper resistor was verified using PSCAD/EMTDC. |