| 基于TR技术的开关柜局部放电超声波定位方法 |
| |
| 引用本文： | 马鹏墀,王致杰,沈盼,王鸿,付晓琳,杨皖昊. 基于TR技术的开关柜局部放电超声波定位方法[J]. 水电能源科学, 2021, 39(4): 182-184,169 |
| |
| 作者姓名： | 马鹏墀 王致杰 沈盼 王鸿 付晓琳 杨皖昊 |
| |
| 作者单位： | 上海电机学院电气学院,上海201306;江苏宏源电气有限责任公司,江苏南京211100 |
| |
| 基金项目： | 国家自然科学基金项目(51477099);上海市自然科学基金项目(15ZR1417300)。 |
| |
| 摘 要： | 针对到达时间差(TDOA)定位算法对时延误差很敏感,细小的时延误差可能造成定位失败的问题,提出了采用TR技术的开关柜局部放电超声波定位方法,该方法可忽略波形模态的影响,无需直接进行时延估计.利用实验室制作的针—板放电模型在开关柜内进行试验,验证了方法的可行性,分析了不同信噪比和传感器数量对定位精度的影响,并与TDOA定...
|
| 关 键 词： | 开关柜 局部放电 超声波 时间反转 定位方法 |
Ultrasonic Location Method of Partial Discharge in Switchgear Based on TR Technology |
| |
| MA Peng-chi,WANG Zhi-jie,SHEN Pan,WANG Hong,FU Xiao-lin,YANG Wan-hao. Ultrasonic Location Method of Partial Discharge in Switchgear Based on TR Technology[J]. International Journal Hydroelectric Energy, 2021, 39(4): 182-184,169 |
| |
| Authors: | MA Peng-chi WANG Zhi-jie SHEN Pan WANG Hong FU Xiao-lin YANG Wan-hao |
| |
| Affiliation: | (School of Electrical Engineering,Shanghai Dianji University,Shanghai 201306,China;Jiangsu Hongyuan Electric Co.,Ltd.,Nanjing 211100.China) |
| |
| Abstract: | Aiming at the TDOA positioning algorithm’s sensitivity to delay errors,small delay errors may cause positioning failure.A TR-based partial discharge ultrasonic positioning method for switchgear was proposed.This method can ignore the influence of waveform modal without delay estimate.Experiments were carried out in the switchgear using the needle-board discharge model made in the laboratory,and the feasibility of the method was verified.The influence of different signal-to-noise ratios and the number of sensors on the positioning accuracy was analyzed.It was compared with particle swarm algorithm and Newton iteration method used in TDOA positioning method,and it is found that the TR method has higher positioning accuracy.Finally,the practicality of the TR method was verified by field measurement. |
| |
| Keywords: | switchgear partial discharge ultrasonic wave time reversal location method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
