Analysis of the possibilities to improve the reliability of a 15 kV overhead line exposed to catastrophic icing in Poland

A. Gołaś, W. Ciesielka, K. Szopa, P. Zydroń, W. Bąchorek, M. Benesz, A. Kot, S. Moskwa
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引用次数: 3

Abstract

The paper is a result of a synergic cooperation of two academic teams, i.e. power engineering and mechanical teams, and a distribution system operator. A real 15 kV overhead line exposed to a catastrophic load of ice and rime was analyzed and three solutions to improve the reliability of the tested object in such conditions were examined. Authors considered: shortening the length of the line spans, heating the main line with increased current and rebuilding the overhead line to a cable line. The researches worked out a FEM model taking into account the newest normatives, simulated the model, experimentally increased the load on the real line with measured wire temperature, and performed multi-variant calculations to determine indicators of reliability, i.e. SAIDI and SAIFI. The analyses were followed by conclusions thanks to which the reliability of power lines exposed to catastrophic icing could be increased. These inferences should be considered and applied by all distribution system operators in Poland.
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分析提高波兰遭受灾难性结冰的15千伏架空线路可靠性的可能性
这篇论文是两个学术团队(电力工程和机械团队)和一个配电系统运营商协同合作的结果。分析了实际的15kv架空线路在冰霜灾变条件下的可靠性,探讨了三种提高被测对象可靠性的方案。作者考虑了缩短线路跨度、加大电流加热干线和将架空线路改造成电缆线路等措施。研究建立了考虑最新规范的有限元模型,并对模型进行了仿真,在实测线温的基础上实验增加了实线上的载荷,并进行了多变量计算,确定了可靠性指标SAIDI和SAIFI。分析之后的结论是,由于暴露在灾难性结冰下的电力线的可靠性可以提高。波兰所有配电系统运营商都应考虑并应用这些推论。
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