Research on Heat Dissipation of DC-link Capacitors at High Altitudes

ZUO Qianglin; NI Yan; HAN Xu

doi:10.14044/j.1674-1757.pcrpc.2026.04.006

您当前的位置：

首页 >

文章列表页 >

Research on Heat Dissipation of DC-link Capacitors at High Altitudes

POWER CAPACITOR & REACTIVE POWER COMPENSATION | Key Technologies for the Full-chain Localization of Polypropylene Film Capactors

Research on Heat Dissipation of DC-link Capacitors at High Altitudes
直流支撑电容器在高海拔下的散热问题研究
Jiashan Sunking Power Electronic Capacitor Co., Ltd., Zhejiang Jiashan 314112, China
Wuxi Sunking Power Capacitor Co., Ltd., Jiangsu Wuxi 214177, China
Vol. 47, Issue 4, Pages: 47-53(2026)
DOI：10.14044/j.1674-1757.pcrpc.2026.04.006
稿件说明：

移动端阅览

ZUO Qianglin, NI Yan, HAN Xu. Research on Heat Dissipation of DC-link Capacitors at High Altitudes[J]. Power Capacitor & Reactive Power Compensation, 2026, 47(4): 47-53.
DOI：

ZUO Qianglin, NI Yan, HAN Xu. Research on Heat Dissipation of DC-link Capacitors at High Altitudes[J]. Power Capacitor & Reactive Power Compensation, 2026, 47(4): 47-53. DOI： 10.14044/j.1674-1757.pcrpc.2026.04.006.

摘要

本文根据电容器在不同大气压强下，其温度升高或降低吸收或释放的热量相同的原理，得到电容器外壳散热系数与稳态时间的乘积在不同海拔下相等的关系，设计了不同海拔下，电容器升温和降温的验证实验；根据实验数据计算，得到了在5 000 m海拔下，电容器升温过程中对周围空气的散热系数，比在常压下减小了28%；在降温过程中的散热系数，比在常压下减小了25%；本文推导得到了在常压下和高海拔下，电容器最热点温升差值与其外壳的温升差值相等的结论。实验数据表明，上述结论是正确的。在5 000 m海拔的对应大气压强下，电容器的外壳温升和最热点温升均升高了2.8 K；实验结果还表明，气压越低，电容器的温度稳定时间越长。

Abstract

Based on the principle that the amount of heat absorbed or released by a capacitor due to temperature rise or fall is identical under different atmospheric pressures

this paper establishes that the heat dissipation coefficient of the capacitor case and the steady-state time remains constant across varying altitudes. Accordingly

a verification experiment is designed to measure the heating and cooling processes of the capacitor at different altitudes. According to the experimental data

the heat dissipation coefficient of the capacitor to the surrounding air during the temperature rise process is obtained at altitude of 5 000 m

which is decreased by 28% compared to that at normal pressure. The heat dissipation coefficient during the temperature drop process is decreased by 25% compared to that at normal pressure. The conclusion through derivation in this paper that the difference in temperature rise of the hottest point of the capacitor and the temperature rise of the container is equal under normal pressure and high altitude

is obtained. The experimental data confirm that the above conclusion is valid. At the atmospheric pressure corresponding to an altitude of 5 000 m

both the capacitor case temperature rises and the hot-spot temperature rise is increased by 2.8 K. The experimental results also indicate that the lower the ambient pressure

the longer the tiem required for the capacitor to reach thermal stability.

关键词

Keywords

references

徐政.柔性直流输电系统(第2版)[M].机械工业出版社, 2017.

赵畹君.高压直流输电工程技术(第二版)[M].北京:中国电力出版社,2011.

吴美娴.柔性直流输电技术发展现状及技术研究[J].山东工业技术,2014(23):22-24..

雷晓燕,曹刚,肖梁乐,等.直流支撑电容器电容介损测量方法研究[J].电力电容器与无功补偿,2026,47(1):50-56. LEI Xiaoyan,CAO Gang,XIAO Liangle,et al. Influence of ambient temperature and applied voltage on the temperature rise and temperature distribution of self-healing power capacitor[J]. Power Capacitor & Reactive Power Compensation,2026,47(1):50-56.

吴跃山.浅析高海拔对电器开关设备性能影响[J].电力讯息,2016(9):11-12..

王平,肖智勇.高海拔正极性操作波下放电起始时延特性[J].高电压技术,2022,48(3):857-864.

WANG Ping,XIAO Zhiyong. Characteristics of discharge initiation delay under high altitude positive operating wave[J]. High Voltage Engineering,2022,48(3):857-864.

绝缘配合第1部分:定义、原则和规则:GB/T 311. 1—2012[S]. 2012.

Insulation coordination—Part 1:Definitions,principles and rules:GB/T 311. 1—2012[S]. 2012.

Insulation coordination—Part 1:Definitions,principles and rulers IEC 60071—1:2006[S]. 2006.

Classification of environmental conditions—Part 2—3:Environmental conditions appearing in nature-Air pressure.:IEC 60721—2—3[S].

绝缘配合—第1部分定义,原则和规则GB 311. 1—1997[S]. 1997.

Insulation coordination—Part 1:Definitions, principles and rulers:GB 311. 1—1997.[S]. 1997.

Insulation co-ordination—Part 1:Definitions,principles and rules:IEC60071—1:1993[S]. 1993.

高原型电力电容器:GB/T 6915—1985[S].

High prototype power capacitor:GB/T 6915—1985[S]. 1985.

左强林,邓光昭.青藏直流工程直流滤波电容器研制的技术问题研究[J].高压电器,2013,. 49(4):71-75.

ZUO Qianglin,DENG Guangzhao. Study on the technical problems of DC filter for qianghai-tibet DC project[J]. High Voltage Apparatus,2013,. 49(4):71-75.

左强林.电容器内部的负压[J].电力电容器技术,1988 (2):29-30.

孙翠平,关素娇,李晓军,等.青藏换流站电容器成套装置外绝缘的设计总结[C]//2012年输变电年会论文集, 2012.

黄云锴,储松潮.电力电子电容器高海拔和超高海拔应用的研究[J].安徽科技,2019(10):26-28.

高电压试验技术第1部分:一般定义及试验要求:GB/T 16927. 1—2011[S]. 2011.

High-voltage test techniques—Part 1:General definitions and test requirements:GB/T 16927. 1—2011[S]. 2011.

环境试验—第2部分:试验—试验方法:低气压:GB/T 2423. 21—2025[S]. 2025.

Environmental testing—Part 2—13:Tests—Test M:Low air pressure:GB/T 2423. 21—2025[S]. 2025.

Environmental testing—Part 2—13:Tests M:Low air pressure:IEC 60068—2—13:2021[S]. 2021.

IEEE Standard for Shunt Power Capacitors:IEEE Std 18—2012[S]. 2012.

张茅山,左强林,倪琰,等.直流支撑电容器的热时间常数计算与验证[J].电力电容器与无功补偿,2026,47(1):66-71. ZHANG Maoshan,ZUO Qianglin,NI Yan,et al. Calculation and verification of thermal time constants of DC-link capacitor[J]. Power Capacitor & Reactive Power Compensation,2026,47(1):66-71.

ZUO Qianglin,LEI Qiaoshu. Calculation and verification of thermal time constant of circular element of DC-link capacitor[J]. IET Nanodielectrics,2026,8(1):e70015

沈鸿.电机工程手册(试用版)第五卷,第29篇.机械工业出版社,2019.

左强林,雷乔舒,钟少龙,等.直流支撑电容器圆元件的散热模型与仿真研究[J].电力电容器与无功补偿, 2024,45(1):121-127.

ZUO Qianglin,LEI Qiaoshu,ZHONG Shaolong,et al. Study on heat dissipation model and simulation of circular element for DC-link capacitor[J]. Power Capacitor & Reactive Power Compensation,2024,45(1):121-127.

Views

下载量

CSCD

CNKI被引量

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research on the Winding Performance of Domestic Polypropylene Films Based on Finite Element Simulation

Analysis of Factors Influencing the Partial Discharge Performance of DC-link Capacitor to the Case

Status Analysis and Process Improvement of Domestically Developed Capacitors After Grid-connected Trial Operation

Analysis and Verification of Electrodynamic Hazards in DC-link Capacitors

Influence of Ambient Temperature and Applied Voltage on the Temperature Rise and Temperature Distribution of Self-healing Power Capacitor

Related Author

ZHOU Chunhong

LU Jianxin

FENG Chunlin

YUN Minghui

LIU Dongjing

XIAO Yu

HE Binghui

ZUO Qianglin

Related Institution

Guilin Power Capacitor Co., Ltd.

School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology

Ningbo Bicai Industrial Co., Ltd.

Lion Great Exploit(Hebi)Electronic Technology Co., Ltd.

Rongxin Huike Electric Co., Ltd.

Address：No.18, North Section of Xi’erhuan, Xi’an, Shaanxi, China Postal code：710077
Tel：02984221423 Fax：02984221423 Email：dldrq@126.com
POWER CAPACITOR & REACTIVE POWER COMPENSATION Copyright. 陕ICP备05005324号-3 陕公网安备 61010402000197
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰