基于风向风速气象参数动态调整线路容量的方法
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1.国网辽宁省电力有限公司经济技术研究院 辽宁沈阳;2.国网辽宁省电力有限公司经济技术研究院;3.沈阳工程学院 电力学院

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国网辽宁电力有限公司科技项目 名称:《66kV电力线路设计气象条件和节能环保型杆塔及基础研究》编号2020YF-03


Method for dynamically adjusting line capacity based on wind direction, wind speed and meteorological parameters
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1.State Grid Liaoning Electric Power Company Limited Economic Research Institute Shenyang,LiaoNingShenyang Institute of Engineering Shenyang,LiaoNing;2.Shenyang Institute of Engineering

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    摘要:

    大多数输电线路的额定容量设计基于高温低风速等保守的气象条件,而且额定容量为定值,这种保守的方法往往导致线路容量利用率不足。动态调整线路容量的方法是利用当地的风向风速等气象参数和电网负荷,自适应地计算线路的可用容量。本文基于流体力学计算对当地风场进行了建模,并将风场建模的结果与气象站数据相结合,来进行线路可用容量估算。在沈阳市郊区架空线对所提出的方法进行了测试。结果表明,线路计算可用容量在76.6%的研究时间内高于季节性静态额定容量的情况,比季节性静态额定容量增加了22%,验证了所提出方法的有效性。

    Abstract:

    ABSTRACT: Most of the rated capacity design of transmission lines is based on conservative meteorological conditions such as high temperature and low wind speed, and the rated capacity is a fixed value. This conservative method often leads to insufficient utilization of line capacity. The method of dynamically adjusting the line capacity is to adaptively calculate the available capacity of the line by using the local meteorological parameters such as wind direction and wind speed and the grid load. In this paper, the local wind field is modeled based on hydrodynamics calculation, and the wind field modeling results are combined with the meteorological station data to estimate the available capacity of the line. The proposed method is tested on overhead lines in Shenyang suburb. The results show that the calculated available capacity is higher than the seasonal static rated capacity in 76.6% of the research time, and it is 22% higher than the seasonal static rated capacity, which verifies the effectiveness of the proposed method.

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  • 收稿日期:2021-01-20
  • 最后修改日期:2021-02-20
  • 录用日期:2021-03-05
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