环境因素影响下特高压电压致热型设备表面温差修正方法研究

张丕沛; 师伟; 郭晨瑞; 孙景文

环境因素影响下特高压电压致热型设备表面温差修正方法研究

国网山东省电力公司电力科学研究院, 山东济南 250003

基金项目:

国家电网有限公司科技项目 520626180034

详细信息

作者简介:
张丕沛（1996-），男，硕士，工程师，主要研究方向为高电压及绝缘技术。E-mail：sddky_zpp@163.com

中图分类号: TM216
计量
- 文章访问数: 157
- HTML全文浏览量: 71
- PDF下载量: 25
- 被引次数: 0
出版历程
- 收稿日期: 2022-03-02
- 修回日期: 2022-05-11
- 刊出日期: 2023-03-20

Correction Method of Surface Temperature Difference of UHV Heating Equipment under the Influence of Environmental Factors

Power Research Institute of State Grid Shandong Power Company, Jinan 250003, China

摘要

摘要: 1000 kV电容式电压互感器（Capacitor Voltage Transformer, CVT）、1000 kV气体绝缘金属封闭开关设备GIS（Gas Insulated Switchgear）出线套管、1000 kV避雷器是特高压变电站内主要的电压致热型设备，其内部缺陷具有表面温差小、热点不明显的特点，且易受环境因素影响，通常需要在理想环境条件下开展红外精确测温进行缺陷诊断。然而若现场环境条件短时间内无法满足要求，则可能导致缺陷的进一步发展，因此有必要研究非理想环境条件下测温结果的修正方法。本文建立了3类特高压电压致热型设备的温度场仿真计算模型，结合传热学理论研究了光照强度、环境温度、风速大小等环境因素对特高压电压致热型设备表面温差的影响规律，结果显示，3种因素的增强均会导致表面温差不同程度地下降，需将其修正至理想环境条件下的真实温差。最后利用数据拟合的方法，获得各类环境因素影响下实测温差与真实温差的曲线表达式，进一步总结出非理想环境条件下特高压电压致热型设备表面温差的修正方法，并通过变电站现场应用验证了修正结果的准确性。
- 环境因素 /
- 电压致热型 /
- 红外测温 /
- 修正方法
Abstract: The main voltage heating equipment in UHV substations consists of 1000 kV CVTs, 1000 kV GIS outlet bushings, and 1000 kV arresters. They exhibit small differences in surface temperature and are easily exposed to environmental factors. Precise infrared temperature measurements are typically performed to diagnose defects under ideal environmental conditions. However, if the onsite environmental conditions cannot meet the requirements in a short time, further defects may occur. Therefore, it is necessary to study a correction method for temperature measurement results under non-ideal environmental conditions. In this study, three types of UHV heating equipment temperature field simulation models were established and combined with the theory of heat transfer to study the influence of environmental factors such as light intensity, temperature, and wind speed on the surface temperature difference of UHV heating equipment. The results revealed that the enhancement of these three factors decreased to varying degrees the surface temperatures that needed to be corrected to the true temperature difference under ideal environmental conditions. Finally, data fitting was used to obtain a curve expressing the measured and real temperature differences, and the correction method of the surface temperature difference of the UHV heating equipment under non-ideal environmental conditions. The accuracy of the correction results was verified through the field application of a substation.
- environmental factors /
- voltage heating /
- infrared thermometer /
- correction method

HTML全文

图 1 电压致热型设备仿真模型

Figure 1. Voltage heating equipment simulation model

下载: 全尺寸图片幻灯片

图 2 温度场计算流程

Figure 2. Temperature field calculation process

下载: 全尺寸图片幻灯片

图 3 电压致热型设备温度分布仿真计算结果

Figure 3. Simulation results of temperature distribution

下载: 全尺寸图片幻灯片

图 4 电压致热型设备现场红外测温图谱

Figure 4. Infrared temperature measurement spectrum

下载: 全尺寸图片幻灯片

图 5 表面温差随光照强度变化规律

Figure 5. Temperature difference changes with light intensity

下载: 全尺寸图片幻灯片

图 6 表面温差随环境温度变化规律

Figure 6. Surface temperature difference changes with environmental temperature

下载: 全尺寸图片幻灯片

图 7 表面温差随风速大小变化规律

Figure 7. Temperature difference changes with wind speed

下载: 全尺寸图片幻灯片

图 8 缺陷设备红外精确测温图谱

Figure 8. Infrared precise temperature measurement spectrum of defective equipment

下载: 全尺寸图片幻灯片

图 9 修正误差大小分布等值图

Figure 9. Contour of corrected error

下载: 全尺寸图片幻灯片

表 1 非理想环境条件参数

Table 1. Non-ideal environmental conditions parameters

Non-ideal environmental conditions	Light intensity	Temp- erature	Wind speed
Condition 1: sunny summer day at noon	10000 lx	35℃	2m/s
Condition 2: overcast in autumn	200 lx	15℃	6 m/s
Condition 3: cloudy in summer	4000 lx	32℃	4 m/s
Condition 4: sunny winter	6000 lx	5℃	2 m/s
Condition 5: autumn evening	800 lx	23℃	3 m/s

下载: 导出CSV

表 2 非理想环境条件下测温图谱

Table 2. Thermal images under non-ideal environmental conditions

Environmental conditions	Spectrum of CVT	Spectrum of arrester
Condition 1
Condition 2
Condition 3
Condition 4
Condition 5

下载: 导出CSV

表 3 非理想环境条件下测试数据

Table 3. Test data under non-ideal environmental conditions

Condi- tions	CVT			Arrester
Condi- tions	τ/K	τ₀′/K	Diagnostic results	τ/K	τ₀′/K	Diagnostic results
Condi- tion 1	0.22	2.21	Flawed	0.03	0.65	Flawed
Condi- tion 2	2.23	2.41	Flawed	0.66	0.71	Flawed
Condi- tion 3	0.86	2.28	Flawed	0.21	0.67	Flawed
Condi- tion 4	0.95	2.32	Flawed	0.35	0.67	Flawed
Condi- tion 5	1.84	2.36	Flawed	0.52	0.68	Flawed

下载: 导出CSV

参考文献(15)

[1]	卢有盟, 王增文, 李小燕. 1000 kV特高压电容式电压互感器的研制[J]. 电力建设, 2009, 30(9): 25-27. https://www.cnki.com.cn/Article/CJFDTOTAL-DLJS201405020.htm LU Youmeng, WANG Zengwen, LI Xiaoyan. Development of 1000 kV UHV capacitance voltage transformer[J]. Electric Power Construction, 2009, 30(9): 25-27. https://www.cnki.com.cn/Article/CJFDTOTAL-DLJS201405020.htm
[2]	余良清, 吴文海, 郑宇宏, 等. 特高压1000kVGIS出线复合套管的研制[J]. 电瓷避雷器, 2016(6): 6-15. https://www.cnki.com.cn/Article/CJFDTOTAL-DCPQ201606002.htm YU LiangQing, WU Wenhai, ZHENG Hongyu, et al. Development of terminal composite bushing for UHV 1000kV GIS[J]. Insulators and Surge Arresters, 2016(6): 6-15. https://www.cnki.com.cn/Article/CJFDTOTAL-DCPQ201606002.htm
[3]	桑建平, 吴亮, 刘云蔚, 等. 复合外套无间隙金属氧化物避雷器热特性试验研究[J]. 电瓷避雷器, 2015(3): 62-68. https://www.cnki.com.cn/Article/CJFDTOTAL-DCPQ201503011.htm SANG Jianping, WU Liang, LIU Yunwei, et al. Study on the thermal characteristic of polymeric housed MOA without gap[J]. Insulators and Surge Arresters, 2015(3): 62-68. https://www.cnki.com.cn/Article/CJFDTOTAL-DCPQ201503011.htm
[4]	林其雄, 曾文斐, 区伟明, 等. 电压型致热设备温度统计分析[J]. 电瓷避雷器, 2017(4): 39-45. https://www.cnki.com.cn/Article/CJFDTOTAL-DCPQ201704007.htm LIN Qixiong, ZENG Wenfei, QU Weiming, et al. Temperature statistics analysis of voltage type heating equipment[J]. Insulators and Surge Arresters, 2017(4): 39-45. https://www.cnki.com.cn/Article/CJFDTOTAL-DCPQ201704007.htm
[5]	刘振, 谌柳明, 江海涛. 特高压变电站扩建工程管理[J]. 山东电力技术, 2019, 46(6): 72-75. https://www.cnki.com.cn/Article/CJFDTOTAL-SDDJ201905017.htm LIU Zhen, ZHAN Liuming, JIANG Haitao. Analysis of construction management of expansion project of UHV substation[J]. Shandong Electric Power, 2019, 46(6): 72-75. https://www.cnki.com.cn/Article/CJFDTOTAL-SDDJ201905017.htm
[6]	张金岗. 红外测温技术在氧化锌避雷器带电检测中的应用[J]. 高压电器, 2015, 51(6): 200-204. https://www.cnki.com.cn/Article/CJFDTOTAL-GYDQ201506035.htm ZHANG Jingang. Application of infrared temperature measurement technology to live detection of Zinc Oxide arrester[J]. High Voltage Apparatus, 2015, 51(6): 200-204. https://www.cnki.com.cn/Article/CJFDTOTAL-GYDQ201506035.htm
[7]	朱振华, 周华, 于大洋, 等. 一起110 kV油浸式变压器高压套管异常发热缺陷诊断[J]. 山东电力技术, 2020, 47(12): 37-40. https://www.cnki.com.cn/Article/CJFDTOTAL-SDDJ202012008.htm ZHU Zhenhua, ZHOU Hua, YU Dayang, et al. Diagnosis of abnormal heating defect of high voltage bushing of 110 kV oil immersed transformer[J]. Shandong Electric Power, 2020, 47(12): 37-40. https://www.cnki.com.cn/Article/CJFDTOTAL-SDDJ202012008.htm
[8]	王政, 郭峰, 杨锟, 等. 基于多种试验综合诊断的CVT电压异常故障分析[J]. 山东电力技术, 2019, 46(11): 60-63. https://www.cnki.com.cn/Article/CJFDTOTAL-SDDJ201911011.htm WANG Zheng, GUO Feng, YANG Kun, et al. Analysis of CVT voltage abnormal fault based on comprehensive diagnosis of multiple tests[J]. Shandong Electric Power, 2019, 46(11): 60-63. https://www.cnki.com.cn/Article/CJFDTOTAL-SDDJ201911011.htm
[9]	马继先, 杨青, 郭亮, 等. 影响电力设备红外检测准确性因素的分析研究[J]. 华北电力技术, 2012(8): 55-60. https://www.cnki.com.cn/Article/CJFDTOTAL-HBDJ201208016.htm MA Jixian, YANG Qing, GUO Liang et al. Research on promoting the accuracy of electrical equipment diagnosing with infrared detection[J]. North China Electric Power, 2012(8): 55-60. https://www.cnki.com.cn/Article/CJFDTOTAL-HBDJ201208016.htm
[10]	廖盼盼, 张佳民. 红外测温精度的影响因素及补偿方法的研究[J]. 红外技术, 2017, 39(2): 173-177. http://hwjs.nvir.cn/article/id/hwjs201702012 LIAO Panpan, ZHANG Jiamin. Research on influence factors for measuring and method of correction in infrared thermometer[J]. Infrared Technology, 2017, 39(2): 173-177. http://hwjs.nvir.cn/article/id/hwjs201702012
[11]	张嘉旻, 周越, 郭洁, 等. 温度对交流无间隙金属氧化物避雷器状态检测的影响[J]. 电瓷避雷器, 2017(6): 57-61. https://www.cnki.com.cn/Article/CJFDTOTAL-DCPQ201706010.htm ZHANG Jiemin, ZHOU Yue, GUO Jie, et al. Influence of temperature on condition detection of ac moa without gaps [J]. Insulators and Surge Arresters, 2017(6): 57-61. https://www.cnki.com.cn/Article/CJFDTOTAL-DCPQ201706010.htm
[12]	卢知非, 刘浩宇, 陈文亮, 等. 红外人体测温精度补偿方法研究[J]. 红外技术, 2021, 43(9): 895-901. http://hwjs.nvir.cn/article/id/9b7f0122-fd48-4a89-825d-0dadbdafdc2e LU Zhifei, LIU Haoyu, CHEN Wenliang, et al. Accuracy compensation method for infrared human body temperature measurement accuracy[J]. Infrared Technology, 2021, 43(9): 895-901. http://hwjs.nvir.cn/article/id/9b7f0122-fd48-4a89-825d-0dadbdafdc2e
[13]	杨世铭, 陶文铨. 传热学[M]. 北京: 高等教育出版社, 2006. YANG Shiming, TAO Wenquan. Heat Transfer[M]. Beijing: Higher Education Press, 2006.
[14]	彭子健, 李宁, 李娜, 等. 风速和温度对红外热像检测绝缘子的影响分析[J]. 电瓷避雷器, 2019(3): 197-203. https://www.cnki.com.cn/Article/CJFDTOTAL-DCPQ201903034.htm PENG Zijian, LI Ning, LI Na, et al. Analysis of effect of wind speed and temperature on infrared thermal image detection of insulators[J]. Insulators and Surge Arresters, 2019(3): 197-203. https://www.cnki.com.cn/Article/CJFDTOTAL-DCPQ201903034.htm
[15]	周建国, 雷民, 杨楚明, 等. 带电设备红外诊断应用规范: DLT 664- 2016[S]. 北京: 中国电力出版社, 2017. ZHOU Jianguo, LEI Min, YANG Chuming, et al. Application Rules of Infrared Diagnosis for Live Electrical Equipment[S]. Beijing: China Electric Power Press, 2017.