JSInSAR技术在变电站及电力铁塔形变监测中的应用

doi:10.11930/j.issn.1004-9649.201803007

中国电力 ›› 2018, Vol. 51 ›› Issue (11): 45-52.DOI: 10.11930/j.issn.1004-9649.201803007

JSInSAR技术在变电站及电力铁塔形变监测中的应用

肖行诠¹, 张金宝², 焦一飞¹, 陈中国¹, 熊晓曼¹, 黄世鲸², 焦敏²

1. 国网四川省电力公司经济技术研究院, 四川成都 610041;
2. 四川瑞康创新科技有限公司, 四川成都 610041

收稿日期:2018-03-17 修回日期:2018-06-06 出版日期:2018-11-05 发布日期:2018-11-16
作者简介:肖行诠(1963-),男,高级工程师,从事输变电工程规划建设及相关研究工作,E-mail:1437207279@qq.com;张金宝(1991-),男,工程师,从事InSAR技术研究及应用,E-mail:819804607@qq.com;焦一飞(1985-),男,工程师,从事输变电工程土建专业技术监督、项目评审及相关研究工作,E-mail:yifeijiao@hotmail.com;陈中国(1979-),男,高级工程师,从事输变电工程土建相关评审工作,E-mail:kv9100@qq.com
基金资助:
国网四川省电力公司科技项目（基于时序干涉微波遥感（SAR）的输变电设施及周边环境形变监测技术研究项目，SGSCJY00JHJS1700026）。

The Application of JSInSAR Technology in Substation and Power Tower Deformation Monitoring

XIAO Xingquan¹, ZHANG Jinbao², JIAO Yifei¹, Chen Zhongguo¹, XIONG Xiaoman¹, HUANG Shijing², JIAO Min²

1. State Grid Sichuan Electric Power Company Economic and Technical Research Institute, Chengdu 610041, China;
2. Sichuan Rycon Innovative Technology Co., Ltd., Chengdu 610041, China

Received:2018-03-17 Revised:2018-06-06 Online:2018-11-05 Published:2018-11-16
Supported by:
This work is supported by Science and Technology Project of State Grid Sichuan Electric Power Company (No.SGSCJY00JHJS1700026).

摘要/Abstract

摘要： 变电站和电力铁塔形变会对电力安全输送造成威胁，传统的PSI技术监测点密度稀疏，难以实现变电站和电力铁塔精细形变测量。基于18景TerraSAR-X Strimap模式高分辨率影像数据，采用JSInSAR技术获取了成都地区尖山和九江2座500 kV 变电站及周边电力铁塔的毫米级形变监测结果，并从纵向和横向2个维度分析了其时序形变趋势。研究发现，JSInSAR技术使得形变监测点的空间密度达到了传统PSI技术的5倍，2座变电站形变速率均小于8 mm/年，均处在安全运行阶段；周边电力铁塔纵向和横向累积变形差异均比较小，铁塔较为稳定。证明了JSInSAR技术能够有效增加形变监测点空间密度，获取更为丰富的形变细节，同传统地面监测手段相比，该技术的形变监测点的空间密度更高，监测点的精度也更高。同时也证明了该技术在电力基础设施形变监测方面具有广阔的应用前景。

关键词: JSInSAR, PSI, 形变监测, 变电站, 电力铁塔

Abstract: The deformation of substations and power towers could threaten the secure transmission of electric power. Due to the sparsity of distributed monitoring points, the traditional PSI technology is incapable of achieving high-precision measurement in practice. Alternatively, this paper adopted the JSInSAR technology to obtain the millimeter-scale deformation monitoring results of two 500 kV substations and surrounding power towers in Jianshan and Jiujiang areas of Chengdu, and analyzed their time-series deformation trends from both vertical and horizontal dimensions, based on 18 TerraSAR-X Strimap high-resolution image data. Simulation results showed that the spatial density of deformation monitoring points with JSInSAR technology is 4 times larger than those with the traditional PSI technology; two substations are in safe operating stations, with a relatively small vertical and horizontal cumulative deformation difference, which confirms the superiority of JSInSAR technology on increasing the spatial density of deformation monitoring points and obtaining more abundant deformation details. Compared with traditional ground-based monitoring methods, the space density of the deformation monitoring points as well as its accuracy with JSInSAR technology are higher, suggesting broad application prospects in power infrastructure monitoring of JSInSAR technology.

Key words: JSInSAR, PSI, deformation measurement, substation, power tower

中图分类号:

TM853

肖行诠, 张金宝, 焦一飞, 陈中国, 熊晓曼, 黄世鲸, 焦敏. JSInSAR技术在变电站及电力铁塔形变监测中的应用[J]. 中国电力, 2018, 51(11): 45-52.

XIAO Xingquan, ZHANG Jinbao, JIAO Yifei, Chen Zhongguo, XIONG Xiaoman, HUANG Shijing, JIAO Min. The Application of JSInSAR Technology in Substation and Power Tower Deformation Monitoring[J]. Electric Power, 2018, 51(11): 45-52.

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JSInSAR技术在变电站及电力铁塔形变监测中的应用

The Application of JSInSAR Technology in Substation and Power Tower Deformation Monitoring

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