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| 一种基于视频图像识别的输电线路屏蔽环振动频率监测方法 | |
| 引用本文： | 张宇娇,杨骐,姜岚,徐天勇,董晓虎. 一种基于视频图像识别的输电线路屏蔽环振动频率监测方法[J]. 中国电力, 2018, 51(3): 35-41. DOI: 10.11930/j.issn.1004-9649.201703070 |
| 作者姓名： | 张宇娇 杨骐 姜岚 徐天勇 董晓虎 |
| 作者单位： | 1. 三峡大学 电气与新能源学院, 湖北 宜昌 443002;2. 国网湖北省电力公司检修公司, 湖北 武汉 430050;3. 湖南大学 土木工程学院, 湖南 长沙 410000 |
| 基金项目： | 国家自然科学基金资助项目（51577106）。 |
| 摘 要： | 针对输电线路屏蔽环振动频率监测困难的问题，提出一种非接触式振动频率识别方法。以某已建成特高压线路屏蔽环为例，进行振动频率识别，并采用精细化有限元方法对屏蔽环进行模态分析，验证了该方法的可行性。分析表明：屏蔽环振动频率图像识别方法与有限元方法计算频率接近，能使用图像识别方法对输电线路屏蔽环进行振动频率识别。 |
| 关 键 词： | 屏蔽环 振动 图像识别 模态分析 输电线路 |
| 收稿时间： | 2017-03-27 |
| 修稿时间： | 2017-11-22 |
Vibration Frequency Identification and Analysis for UHV Line Shield Ring |
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| ZHANG Yujiao,YANG Qi,JIANG Lan,XU Tianyong,DONG Xiaohu. Vibration Frequency Identification and Analysis for UHV Line Shield Ring[J]. Electric Power, 2018, 51(3): 35-41. DOI: 10.11930/j.issn.1004-9649.201703070 | |
| Authors: | ZHANG Yujiao YANG Qi JIANG Lan XU Tianyong DONG Xiaohu |
| Affiliation: | 1. College of Electrical Engineering and New Energy, China Three Gorges University, Yichang 443002, China;2. Maintenance Company, State Grid Hubei Electric Power Company, Wuhan 430050, China;3. College of Civil Engineering, Hunan University, Changsha 410000, China |
| Abstract: | In order to monitor the vibration frequency of shielding ring of transmission lines, a non-contact vibration frequency identification method is proposed. Taking a shield ring of an ultra-high voltage (UHV) transmission line as an example, the method of image recognition is used to recognize the vibration frequency, and the finite element method is used to verify the feasibility of the proposed method. The analyzing results show that the frequency obtained by two different methods are close, and the image recognition method can be used to identify the vibration frequency of shielding ring of transmission lines. |
| Keywords: | shield ring vibration image recognition modal analysis transmission line |
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