CAJ | 학술논문

以国内首条20 mm重冰区500 kV同塔双回线路——茂茂线为依托，利用数值模拟方法对各种脱冰工况下导线脱冰动力响应进行研究，得出了导线脱冰跳跃高度和横摆距离工程实用化公式，并总结出脱冰过程中杆塔动力荷载变化规律。在此基础上对20 mm重冰区500 kV同塔双回线路路径选择、绝缘配置、塔头尺寸控制条件、铁塔荷载和铁塔型式等方面进行研究，基本理清了重冰区同塔双回线路的设计方法和思路，可为后续重冰同塔双回线路设计提供重要参考。
이국내수조20 mm중빙구500 kV동탑쌍회선로——무무선위의탁，이용수치모의방법대각충탈빙공황하도선탈빙동력향응진행연구，득출료도선탈빙도약고도화횡파거리공정실용화공식，병총결출탈빙과정중간탑동력하재변화규률。재차기출상대20 mm중빙구500 kV동탑쌍회선로로경선택、절연배치、탑두척촌공제조건、철탑하재화철탑형식등방면진행연구，기본리청료중빙구동탑쌍회선로적설계방법화사로，가위후속중빙동탑쌍회선로설계제공중요삼고。
During the construction of the first 500 kV AC double-circuit transmission line on the same tower located at 20 mm heavy icing area in China, the dynamic response of the transmission lines under various ice-shedding cases are analyzed by numerical simulation, the engineering formula for calculating ice-shedding jump height and swing distance are obtained, and also variation of dynamic load on the tower. Based on those conclusion, routing, insulation coordination, tower head design, tower load and tower type of 500 kV AC double-circuit transmission line on the same tower located at 20 mm heavy icing area are researched. The summarized design method and thought can provide an important reference for the double-circuit transmission line on the same tower located at heavy icing area.