Study on the Optimal Inter-Array Configuration for Offshore Wind Farm Considering Equipment Failure; 설비 고장을 고려한 해상풍력단지 최적 내부망 구성에 관한 연구

초록

Offshore wind power has been attracting attention as a key energy source for the carbon neutralization strategy, and has the advantage of good wind resources compared to onshore wind power, and is easy to largescale. However, the initial installation and maintenance costs of largescale offshore wind farms are very high, so it is important to minimize the initial investment cost. Although there are preliminary studies on the economic evaluation of the interarray of offshore wind farms in Korea, there is still a lack of research on the interarray that considers the economic evaluation and reliability evaluation together. In this paper, therefore, the current carrying capacity and shortcircuit current of a 60MW offshore wind farm with 95 mm2 are compared to construct the interarray of the offshore wind farm with the new minimum size submarine cable. The interarray is then optimized using binary integer programming model using the Bentley-Ottmann algorithm to avoid doublecrossing arcs. The economic evaluation of the interarray is conducted by comparing the installation cost and loss cost, and the reliability evaluation considering equipment failure. Then, the optimal interarray layout of offshore wind farm with both economic evaluation and reliability evaluation is studied and reviewed. © The Korean Institute of Electrical Engineers.

키워드