The Effect of Temporal Discretization on Dynamic Thermal Line Rating

被引:4
|
作者
Barton, Tomas [1 ]
Musilek, Michal [2 ]
Musilek, Petr [1 ]
机构
[1] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB, Canada
[2] Univ Hradec Kralove, Dept Appl Cybernet, Hradec Kralove, Czech Republic
来源
2020 21ST INTERNATIONAL SCIENTIFIC CONFERENCE ON ELECTRIC POWER ENGINEERING (EPE) | 2020年
基金
加拿大自然科学与工程研究理事会;
关键词
Dynamic Thermal Line Rating; Wind Speed; Weibull Distribution; Benefit Analysis; Extreme Values; Temporal Discretization;
D O I
10.1109/epe51172.2020.9269231
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Dynamic Thermal Line Rating (DTLR) rating is often applied in discrete time periods during which the rating is held constant. As the applied rating must always be safe under the worst case conditions, it is selected as the minimal rating over the time period. This conservative approach decreases the potential benefit of DTLR because the capacity that is over the minimum of the period is unused. This paper aims to investigate how overall rating is affected when the lengths of the DTLR discretization periods are varied. The stability under minimization property of Weibull distribution is used to derive the relation between the discretization length and the expected value of discretized wind speed. Moreover, data from 490 weather stations located across Canada are used to support the analytical result and to quantify the benefit of DTLR over a large geographical area.
引用
收藏
页码:444 / 449
页数:6
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