CAJ | 학술논문

同塔4回线路的相序布置方式理论上有1296种(6~4),为从众多相序中选择最优相序,以500kV同塔4回线路为例,采用穷举法分析了所有相序布置方式下的电磁环境、自然功率及线路不平衡度等电气特性.结果表明相序布置对线路的电气特性有一定影响,线路的工频磁场、无线电干扰和可闻噪声均不是决定线路最优相序布置的关键因素.综合考虑线路电磁环境、自然功率和线路不平衡度等因素,利用排序法得出了线路的最优相序布置,500kV同塔4回线路d、e型塔的最优相序布置为1616型、1462型.推荐同塔4回线路的4种典型排列方式,其计算方法与结果可供实际工程参考.
동탑4회선로적상서포치방식이론상유1296충(6~4),위종음다상서중선택최우상서,이500kV동탑4회선로위례,채용궁거법분석료소유상서포치방식하적전자배경、자연공솔급선로불평형도등전기특성.결과표명상서포치대선로적전기특성유일정영향,선로적공빈자장、무선전간우화가문조성균불시결정선로최우상서포치적관건인소.종합고필선로전자배경、자연공솔화선로불평형도등인소,이용배서법득출료선로적최우상서포치,500kV동탑4회선로d、e형탑적최우상서포치위1616형、1462형.추천동탑4회선로적4충전형배렬방식,기계산방법여결과가공실제공정삼고.
There are 1 296(6~4)phase sequence arrangements for quadruple-circuit transmission lines on the same tower theoretically.In order to obtain the optimal arrangement,taking 500 kV quadruple-circuit transmission lines on the same tower as an example,the electric characteristic of transmission line including electromagnetic environment,natural power,imbalance transposition,etc under every phase sequence arrangement were compared and analyzed by method of exhaustion.The result shows that the arrangement has a certain impact on the electric characteristic of transmission line.Power frequency magnetic field,radio interference and audible noise are not the decisive factors to optimal phase sequence arrangement.By taking electromagnetic environment,natural power,imbalance transposition,etc into account and using sorting method,the optimal arrangement for 500 kV quadruple-circuit transmission lines on the same tower is obtained,which is 1616 for tower d and 1462 for tower e.Finally typical arrangements for quadruple-circuit transmission lines on the same tower are recommended.The calculation method and results be referred to for projects.