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http://dx.doi.org/10.5370/KIEE.2013.62.12.1647

A Study on the Impact of HVDC Transmission System to Interconnect Large-scale Power Generation Plants to Power Grid in Korea  

Han, Su-Young (School of Electrical Engineering, Kookmin University)
Gwon, Do-Hun (School of Electrical Engineering, Seoul National University)
Chung, Il-Yop (School of Electrical Engineering, Kookmin University)
Lim, Jae-Bong (School of Electrical Engineering, Kookmin University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.62, no.12, 2013 , pp. 1647-1656 More about this Journal
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.
Keywords
HVDC; Power system; Transmission system; ESCR; UIF;
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