| Title |
A Study on the Impact of HVDC Transmission System to Interconnect Large-scale Power Generation Plants to Power Grid in Korea |
| Authors |
한수영(Han, Su-Young) ; 권도훈(Gwon, Do-Hun) ; 정일엽(Chung, Il-Yop) ; 임재봉(Lim, Jae-Bong) |
| DOI |
https://doi.org/10.5370/KIEE.2013.62.12.1647 |
| Keywords |
HVDC ; Power system ; Transmission system ; ESCR ; UIF |
| Abstract |
Although the demand for electricity has been increasing these days, it becomes more difficult to find new sites for large-scale power generation plants near urban areas due to environmental and economic issues. Therefore, new power plants are forced off to rural or desolate coastal areas. As a result, there is significant regional imbalance in power generation and consumption between urban and rural areas in South Korea. This paper investigates the feasibility of high-voltage DC (HVDC) system as a candidate for electric power transmission system from east-coastal sites to metropolitan area. To this end, this paper analyzes transient stability and dynamic impact of a HVDC transmission system and compares the results to conventional high-voltage AC (HVAC) transmission systems via PSS/E simulation. This paper also examines the effect of HVDC system to voltage variation and low-frequency resonance in the neighboring buses in the grid using ESCR(Effective Short Circuit Ratio)과 UIF(Unit Interaction Factor) indices. |