兼顾电缆线路效率和可靠性的载流量动态阈值研究
Research on Dynamic Threshold of Current Carrying Capacity Considering Efficiency and Reliability of Cable Lines
王金阳 1李海锋 1苏金跃 1王智东 1胡冉 2叶文忠3
作者信息
- 1. 华南理工大学电力学院,广州 510641
- 2. 华南理工大学电力学院,广州 510641;深圳供电局有限公司,深圳 518000
- 3. 深圳市壹电电力技术有限公司,深圳 518101
- 折叠
摘要
针对当前配电网电缆为了运行可靠性,多采用较低载流量的固定阈值方法,电缆利用率低的问题,本文提出了一种载流量动态阈值的方法.该方法从理论上研究电缆线路载流量与导体温度的关系,通过实际运行的电缆工程的实测数据量化电缆载流量与导体温度的函数关系,并测定电缆线路的基准阈值,以此实现线路的阈值动态化计算.算法应用于智能电缆测控系统的动态阈值监测功能模块,线路所得实际运行数据验证了本方法的有效性.
Abstract
In response to the issue of low cable utilization in the current distribution network,fixed threshold methods with lower current carrying capacity are often used for the sake of operational reliability.This paper proposes a method for dynamic threshold of current carrying capacity.This method theoretically studies the relationship between cable current carrying capacity and conductor temperature,quantifies the functional relationship between cable current carrying capacity and conductor temperature through measured data from actual cable engineering operations,and determines the benchmark threshold of the cable line,thereby achieving dynamic calculation of the threshold of the line.The algorithm is applied to the dynamic threshold monitoring function module of the intelligent cable measurement and control system,and the effectiveness of this method is verified by the actual operating data obtained from the line.
关键词
电缆线路/载流量/导体温度/动态阈值Key words
cable lines/current carrying capacity/conductor temperature/dynamic threshold引用本文复制引用
基金项目
南方电网有限责任公司重点科技项目(SZKJXM20200490)
出版年
2024
NETL
NSTL
维普
万方数据