为提高长距离高压电缆局部放电信号光纤检测的可靠性和定位精度,解决分布式光纤传感系统中的偏振衰弱和相位漂移问题,搭建接入偏振控制器的光纤传感检测系统模型对电缆局部放电超声特性进行分析,提出了一种基于改进偏振控制的自适应矩估计最大值优化算法(adaptive moment estimation max, Adamax).通过调整偏振控制器的驱动电压以减小偏振衰弱,基于MATLAB对算法的衰减率、噪声幅度、控制精度等参数进行仿真计算,结果表明改进算法比Adam算法平均迭代步数降低了约35%,控制收敛精度可达到10-4级.在15 km高压电缆系统进行了光纤传感局部放电定位检测实验,结果表明改进的偏振控制算法定位精度为±12 m.验证了分布式光纤传感系统中偏振控制器和改进算法的可靠性和定位精度,为基于大数据的高压输电设备绝缘状态监测提供技术支撑.
In order to improve the reliability and positioning accuracy of optical fiber detection of partial discharge signals in long distance high-voltage cables, the problems of polarization attenuation and phase drift in distributed optical fiber sensing systems and overcome, the model of optical fiber sensing detection system connected with polarization controller is built. An improved polarization control algorithm(Adamax)is proposed based on the analysis of the ultrasonic characteristics of cable partial discharge. By adjusting the driving voltage of the polarization controller to reduce polarization attenuation, the attenuation rate, noise amplitude, control accuracy and other parameters of the algorithm are simulated based on MATLAB. The results show that the average iterative steps of the improved algorithm are reduced by about 35% compared with Adam algorithm, and the control convergence accuracy can reach 10-4. - DOI:10.3969/j.issn.1000-1565.2024.05.009基于偏振控制算法的电缆局部放电光纤传感定位刘志恒1,2,杨森1,陈前1,郝雷1,刘志宾1,孟晓凯3(1.河北大学 电子信息工程学院,河北 保定 071002;2.天津大学 光电信息技术教育部重点实验室,天津 300072;3.国网山西省电力公司电力科学研究院,山西 太原 032100)摘 要:为提高长距离高压电缆局部放电信号光纤检测的可靠性和定位精度,解决分布式光纤传感系统中的偏振衰弱和相位漂移问题,搭建接入偏振控制器的光纤传感检测系统模型对电缆局部放电超声特性进行分析,提出了一种基于改进偏振控制的自适应矩估计最大值优化算法(adaptive moment estimation max, Adamax).通过调整偏振控制器的驱动电压以减小偏振衰弱,基于MATLAB对算法的衰减率、噪声幅度、控制精度等参数进行仿真计算,结果表明改进算法比Adam算法平均迭代步数降低了约35%,控制收敛精度可达到10-4级.在15 km高压电缆系统进行了光纤传感局部放电定位检测实验,结果表明改进的偏振控制算法定位精度为±12 m.验证了分布式光纤传感系统中偏振控制器和改进算法的可靠性和定位精度,为基于大数据的高压输电设备绝缘状态监测提供技术支撑.关键词:光纤传感系统;偏振衰弱;改进Adamax算法;高压电缆;定位精度中图分类号:TM855 文献标志码:A 文章编号:1000-1565(2024)05-0521-14Optical fiber sensing and location of cable partial discharge based on polarization control algorithmLIU Zhiheng1,2,YANG Sen1,CHEN Qian1,HAO Lei1,LIU Zhibin1,MENG Xiaokai3(1.College of Electronic Information Engineering, Hebei University, Baoding 071002, China; 2. Key Laboratory of Opto-electronic Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, China; 3. State Grid Shanxi Electric Power Research Institute, Taiyuan 032100, China)Abstract: In order to improve the reliability and positioning accuracy of optical fiber detection of partial discharge signals in long distance high-voltage cables, the problems of polarization attenuation and phase drift in distributed optical fiber sensing systems and overcome, the model of optical fiber sensing detection system connected with polarization controller is built. An improved polarization control algorithm(Adamax)is proposed based on the analysis of the ultrasonic characteristics of cable partial discharge. By adjusting the driving voltage of the polarization controller to reduce polarization attenuation, the attenuation rate, noise amplitude, control accuracy and other parameters of the algorithm are simulated based on MATLAB. The results show that the average iterative steps of the improved algorithm are reduced by about 35% compared with Adam algorithm, and the control convergence accuracy can reach 10-4. - 收稿日期:2023-03-08;修回日期:2023-10-23 基金项目:中央引导地方科技发展资金项目(236Z4411G);河北省高层次人才资助项目(B2020005004);教育部产学研协同育人项目(220606517133928;22090423222205) 第一作者:刘志恒(1984—),男,河北大学副教授,博士,主要从事智能高压电器绝缘检测、先进光纤检测技术等研究.E-mail: liuzhiheng17@126.com 通信作者:郝雷(1978—),男,河北大学副教授,博士,主要从事智能高压电器绝缘检测、智能制造与工业大数据技术研究.E-mail: 13066687@qq.com 第5期刘志恒等:基于偏振控制算法的电缆局部放电光纤传感定位河北大学学报(自然科学版) 第44卷The experiment of optical fiber sensing partial discharge location and detection is carried out in a 15 km high-voltage cable system. The results show that the location accuracy of the improved polarization control algorithm is within ± 12 m. The reliability and positioning accuracy of polarization controller and improved algorithm in distributed optical fiber sensing system are verified, which provides technical support for insulation condition monitoring of high-voltage transmission equipment based on big data.
[1] 宣耀伟,胡凯,杨丰源,等.XLPE直流电缆典型缺陷局部放电特性研究[J].高压电器, 2019, 55(7): 173-180.
[2] 孙廷玺,陈浩,钱森,等.光纤传感技术在局部放电检测的研究进展[J].高压电器, 2018, 54(11): 1-8. DOI: 10.13296/j.1001-1609.hva.2018.11.001.
[3] 祝彦,潘亚涛,刘光辉,等.MEMS光纤压力传感器压力膜片的仿真与分析[J].河北师范大学学报(自然科学版), 2020, 40(2): 132-136. DOI: 10.3969/j.issn.1000-1565.2020.02.004.
[4] 王华英,孙海军,张雷,等.基于神经网络的磁场定位技术[J].河北大学学报(自然科学版), 2022, 42(6): 657-664. DOI: 10.3969/j.issn.1000-1565.2022.06.014.
[5] 金燊,宋伟,杨纯,等.120km长距离分布式光纤振动传感系统[J].光通信研究, 2021(3): 20-24. DOI: 10.13756/j.gtxyj.2021.03.005.
[6] 马国明,王思涵,秦炜淇,等.输电线路运行状态光纤感知研究与展望[J].高电压技术, 2022, 48(8): 3032-3047. DOI: 10.13336/j.1003-6520.hve.20220927.
[7] 金森,张若兵,杜钢.考虑振荡波衰减特性的电缆局放模式识别方法[J].高电压技术, 2021, 47(7): 2583-2590. DOI: 10.13336/j.1003-6520.hve.20200103.
[8] 刘志恒,孟晓凯,张帆,等.基于FPGA的电磁瞬态仿真器研究[J].高电压技术, 2019, 45(7): 2046-2052. DOI: 10.13336/j.1003-6520.hve.20190628003.
[9] 陈浩,徐阳,钱森,等.分布式光纤超声传感器用于检测电缆接头放电故障[J].光学学报, 2021, 41(3): 0306001. DOI: 10.3788/AOS202141.0306001.
[10] LIU Z H, LIU X L, ZHANG Z Y, et al. Research on optical fiber sensor localization based on the partial discharge ultrasonic characteristics in long-distance XLPE cables[J]. IEEE Access, 2020, 8: 184744-184751. DOI: 10.1109/ACCESS.2020.3028765.
[11] 周凯,饶显杰,汪先进,等.基于距离的互相关算法在电力电缆局部放电定位中的应用[J].高电压技术, 2021, 47(8): 2946-2954. DOI: 10.13336/j.1003-6520.hve.20191955.
[12] 王敏学,李黎,周达明,等.分布式光纤传感技术在输电线路在线监测中的应用研究综述[J].电网技术, 2021, 45(9): 3591-3600.
[13] 陈锴,郑佳瑜,周金海,等.实时快速偏振控制算法设计[J].激光技术, 2017, 41(5): 738. DOI: 10.7510/jgjs.issn.1001-3806.2017.05.024.
[14] SU R T, LIU Y K, YANG B L, et al. Active polarization control of a 1.43 kW narrow linewidth fiber amplifier based on SPGD algorithm[J]. J Opt, 2017, 19(4): 045802. DOI: 10.1088/2040-8986/aa5e04.
[15] 马兵斌,柯熙政,张颖.相干光通信系统中光束的偏振控制及控制算法研究[J].中国激光, 2019, 46(1): 0106002. DOI: 10.3788/CJL201946.0106002.
[16] 徐中原,刘琨,江俊峰,等.基于SVM算法的分布式光纤扰动传感系统快速检偏技术研究[J].光电子.激光, 2020, 31(10): 1101-1109. DOI: 10.16136/j.joel.2020.10.0199.
[17] 尤阳,漆云凤,沈辉,等.基于遗传退火算法的光纤激光主动偏振控制技术研究[J].光学学报, 2020, 40(23): 146-155.
[18] 张猛,周宏扬,马国明,等.光纤GIS局放超声检测系统相位反馈控制[J].高电压技术, 2020, 46(12): 4138-4145. DOI: 10.13336/j.1003-6520.hve.20190912.
[19] 夏骞,张涛,刘金璐,等.基于适应性矩估计的偏振控制算法[J].光学学报, 2020, 40(15): 1526001. DOI: 10.3788/AOS202040.1526001.
[20] 朱浩亮,黄玉.嵌入式技术的偏振调制激光测量自动控制系统[J].激光杂志, 2021, 42(6): 36-40. DOI: 10.14016/j.cnki.jgzz.2021.06.036.
[21] LIU Z H, WANG Y Q, CHEN X, et al. An optical fiber sensing method for partial discharge in the HVDC cable system[J]. Int J Electr Power Energy Syst, 2021, 128: 106749. DOI: 10.1016/j.ijepes.2020.106749.
[22] 何乐,丰鑫,吴华明,等.直线型光纤Sagnac干涉仪声传感器及其去噪方法研究[J].仪器仪表学报, 2019, 40(9): 70-77. DOI: 10.19650/j.cnki.cjsi.J1905336.
[23] 李开心,肖倩,贾波.一种基于干涉型光纤振动传感器的信号处理方法[J].复旦学报(自然科学版), 2021, 60(2): 176-181.
[24] 苏洋,张超,王艺敏,等.基于光纤偏振特性的压力传感中最佳入射光偏振态的确定[J].光学学报, 2020, 40(14): 1406001. DOI: 10.3788/AOS202040.1406001. (
