APPLICATION OF A LINE AMPACITY MODEL AND ITS USE IN TRANSMISSION LINES OPERATIONS

被引：11

作者：

Snajdr, Jaroslav ^{[1
]}

Sedlacek, Jan ^{[1
]}

Vostracky, Zdenek ^{[1
]}

机构：

[1] Univ W Bohemia, Fac Elect Engn, Plzen 30614, Czech Republic

来源：

JOURNAL OF ELECTRICAL ENGINEERING-ELEKTROTECHNICKY CASOPIS | 2014年 / 65卷 / 04期

关键词：

ampacity; dynamic line rating; transmission line; heat transfer; conductor temperature measurement;

D O I：

10.2478/jee-2014-0034

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A conductor thermal model related to CIGRE and IEEE solutions was developed and compared with measurements. Two pylons of a single line were equipped with weather monitoring stations and conductor temperature sensors based on Surface Acoustic Wave (SAW) principle. Also a fiber optic distributed temperature sensing system was installed to provide additional data. Over 2.5 million data points were evaluated. Developed model deviation for more than 99 % of values proved to be +/- 1 degrees C for SAW sensor and +/- 3.5 degrees C for the fiber optic measurement. Several ampacity determination methods were described from a transmission grid operator's point of view. Their features were compared in order to show at which planning period they could be useful. A new method for dynamic line rating determination was proposed. Although it reduces maximum ampacity gain, its advantage lies in minimizing measurement systems while retaining relatively stable value and low risk of temperature limit exceeding.

引用

页码：221 / 227

页数：7

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