Calculation and Testing Research on Current Rating Capacity of XLPE Insulated HVDC Cable with Different Metallic Screen Type

ZHANG Hongliang; YIN Yi; XIE Shuhong; HU Ming; FAN Yujun; LI Xingchen

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Calculation and Testing Research on Current Rating Capacity of XLPE Insulated HVDC Cable with Different Metallic Screen Type

更新时间：2025-12-08

- Calculation and Testing Research on Current Rating Capacity of XLPE Insulated HVDC Cable with Different Metallic Screen Type
- Vol. 47, Issue 6, Pages: 2117-2123(2021)
- 作者机构：
  
  1. 上海交通大学电子信息与电气工程学院电气工程系
  2. 电力传输与功率变换控制教育部重点实验室
  3. 中天科技海缆有限公司
  4. 上海国缆检测中心有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 June 2021，
  
  Published：2021
- 稿件说明：
移动端阅览
ZHANG Hongliang, YIN Yi, XIE Shuhong, et al. Calculation and Testing Research on Current Rating Capacity of XLPE Insulated HVDC Cable with Different Metallic Screen Type[J]. 2021, 47(6): 2117-2123.
DOI：

ZHANG Hongliang, YIN Yi, XIE Shuhong, et al. Calculation and Testing Research on Current Rating Capacity of XLPE Insulated HVDC Cable with Different Metallic Screen Type[J]. 2021, 47(6): 2117-2123. DOI：

摘要

为了明确不同金属屏蔽形式对高压直流电缆载流量的影响

并对比热分析法和有限元仿真两种理论计算方法结果的准确性

选取导体截面3 000 mm

的铜芯±525 kV交联聚乙烯（XLPE）绝缘直流电缆

分别通过热分析法和有限元仿真计算皱纹铝套和铜丝屏蔽结构下直流电缆的载流量

并设计直流载流试验对两种电缆样品进行载流量测试。结果表明:相同条件下铜丝屏蔽结构电缆载流量大于皱纹铝套结构

但是两种载流量的理论计算结果均小于试验结果

且存在明显偏差。基于热分析法计算得到的铜丝屏蔽结构电缆在空气中28℃条件下的载流量为2842A

对比有限元仿真结果和试验结果分别偏小7.5%和15.8%;基于热分析法计算得到的相同条件下皱纹铝套结构电缆载流量为2 836 A

对比有限元仿真结果和试验结果分别偏小5.3%和8.6%。造成热分析法计算结果偏小的主要原因在于其仅考虑电缆热传导过程中的热阻影响

无法计算外部空气对流产生的热辐射对载流量的提高

且无法考量电缆结构内部空气对热传导的作用;有限元仿真计算方式在热传导作用之外还具备识别热辐射作用的能力

计算结果更为接近试验结果

差异来源主要为该文所建立的模型未准确表征电缆实际存在的空气隙和皱纹铝套结构

此外有限元仿真计算无法准确模拟实际试验时空气对流产生的电缆表面散热情况。

Abstract

To clarify the influence of different metallic screen types on the current rating capacity of HVDC cables

and to compare the accuracy of calculation results of thermal analysis and finite element simulation

we selected ±525 kV XLPE insulated cables with copper conductor cross-section of 3 000 mm

as examples to perform the experiments. The current rating capacity of HVDC cable with copper wires and corrugated aluminium sheath were calculated based on thermal analysis and finite element simulation respectively

then the results were verified by DC current

loading tests. The calculation results show that the current rating capacity of HVDC cable with copper wires is greater than that with corrugated aluminium sheath under the same condition. But the results based on two calculation methods above are both smaller than those of loading tests

and also obvious deviations exist. Based on thermal analysis

the current rating capacity of ±525 kV cable with copper wires is 2 842 A under 28 ℃ in air

which decreases by a 7.5% compared to the result of finite element simulation and decreases by 15.8% compared to the result of DC current loading tests

respectively. Under the same condition

the current rating capacity of ±525 k V cable with corrugated aluminium sheath is 2 836 A based on thermal analysis

which decreases by 5.3% compared to the result of finite element simulation and decreases by 8.6% compared to the result of DC current loading test

respectively. The reason is that

in the thermal analysis

only the influence of thermal resistance in the process of cable heat conduction is taken into consideration

but the increase of heat radiation of external air convection to current rating capacity can not be calculated

and also the effect of air on heat transfer inside the cable structure is not taken into consideration. Due to the ability to recognize thermal radiation effects in addition to heat conduction

the calculation results based on finite element simulation are more close to test results. However

the finite element simulation model can not represent the air-gap and corrugated aluminium sheath of cable accurately

and the heat dissipation of cable caused by airflow in current loading tests can not be simulated accurately by finite element simulation.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

短路工况下配电变压器绕组磁场-结构力场耦合特性及累积效应形变特性

Influence of Suspension Patterns of UHVDC Line Composite Insulator on Its Impulse Flashover Characteristics

Detection for Composite Insulator Based on Ultrasonic Guided Wave

Improving the Electric Field Strength Distribution of Cable Terminals by Stress Cone of Nonlinear Conductivity Material

Space Charge Behaviors and Trap Distributions of Polypropylene/ Polyolefin Elastomer Blend Under Different Elongation Ratios

Related Author

YUAN Fating

YANG Yi

ZHONG Hao

JIAN Shengkai

LI Haoyue

TANG Bo

HAN Yongxia

TANG Li

Related Institution

College of Electrical Engineering and New Energy, China Three Gorges University

Hubei Provincial Key Laboratory for Operation and Control of Cascaded Hydropower Station(China Three Gorges University)

Electric Power Research Institute,China Southern Power Grid Co., Ltd.

School of Electric Power, South China University of Technology

State Key Laboratory of Mechanical System and Vibration,Shanghai Jiao Tong University

AI问答

⁰