Advantages of HVDC: Long-Distance and Undersea Transmission Compared to AC and Integration with Renewable Energy
The Ministry of Trade, Industry and Energy announced on the 9th that it attended the completion ceremony of the 200MW Voltage Source High Voltage Direct Current (HVDC) transmission held at Yangju Substation and awarded the Minister of Trade, Industry and Energy Award to executives and employees of related organizations who participated in the 'Voltage Source HVDC Localization Development' and technology demonstration.
Voltage Source HVDC has the characteristic of enabling real-time bidirectional current transmission compared to the existing Current Source HVDC. HVDC has advantages over AC in long-distance and undersea transmission, as well as renewable energy integration, leading to increasing global demand.
The Yangju HVDC completed this time is a successful case of localization of Voltage Source HVDC, involving 20 industry-academia-research institutions including Korea Electric Power Corporation, Hyosung, and the Korea Electrotechnology Research Institute through a national project since 2013. With this, Korea became the fifth country in the world to succeed in developing Voltage Source HVDC technology.
The HVDC equipment installed at Yangju Substation is expected by the Ministry to contribute to securing system stability in the northern Gyeonggi region (reducing fault current and line overload) and improving power generation efficiency. Building on this successful technology development case, the Ministry plans to subsequently promote the development of GW-class large-capacity Voltage Source HVDC technology and actively pursue the export industrialization of new electrical equipment (high-voltage, high-power electrical devices) to meet global demand.
Lee Ho-hyun, Director of the Energy Policy Office at the Ministry of Trade, Industry and Energy, who attended the completion ceremony, said, "Since large-scale projects are planned in the US and Europe, such as offshore wind power integration, Korea will actively promote technology advancement and localization of GW-class technology starting from this success, thereby actively fostering domestic industry and export industrialization."
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