三维定位方法在变电站局部放电检测中的应用
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摘要
针对当前变电站局部放电定位系统仅能实现准确的局部放电(PD)二维定位,开展了三维定位方法在变电站PD检测中的应用研究。文中采用定向天线的PD多方位检测定位方法,采取在多个检测点旋转两支特高频定向天线的检测模式,利用不同旋转角度下局放源到达两支天线的不同时延求解定位方程组实现PD三维定位。为实现该方法的现场应用设计了一套局部放电三维定位系统,系统通过各硬件进行角度、时延、定位坐标等参数的采集并传输至上位机,然后在基于LabVIEW平台开发的上位机软件中进行PD源三维坐标计算、显示并保存计算结果。最后,通过试验验证了该系统的有效性,试验结果表明,该系统的PD三维定位偏差不超过0. 4米,远优于二维定位精度。
In view of the current partial discharge (PD) location system of the substation can only achieve the accurate two-dimensional location,thus the application of three-dimensional location method in PD detection of substation is studied. This paper uses multi-direction measurement and location method of PD based on directional antenna,which adopts detection mode rotating two ultra high frequency directional antennas in multiple detection points,using different time delay of the antennas under different rotation angles to solve equations for the three-dimensional PD source localization. In order to realize the field application of this method,a set of three-dimensional PD location system is designed. The system parameters acquisition such as angle,time delay,coordinates of the system is conducted by hardware and transmits them to host computer. Then,the three-dimensional coordinate of PD source is calculated in the host computer software based on LabVIEW,and the results are also displayed and saved by the software. Finally,the effectiveness of the system is verified by experiments. The results show that the three-dimensional location deviation of the PD source is not more than 0. 4 meters,which is much better than two-dimensional location accuracy.
In view of the current partial discharge (PD) location system of the substation can only achieve the accurate two-dimensional location,thus the application of three-dimensional location method in PD detection of substation is studied. This paper uses multi-direction measurement and location method of PD based on directional antenna,which adopts detection mode rotating two ultra high frequency directional antennas in multiple detection points,using different time delay of the antennas under different rotation angles to solve equations for the three-dimensional PD source localization. In order to realize the field application of this method,a set of three-dimensional PD location system is designed. The system parameters acquisition such as angle,time delay,coordinates of the system is conducted by hardware and transmits them to host computer. Then,the three-dimensional coordinate of PD source is calculated in the host computer software based on LabVIEW,and the results are also displayed and saved by the software. Finally,the effectiveness of the system is verified by experiments. The results show that the three-dimensional location deviation of the PD source is not more than 0. 4 meters,which is much better than two-dimensional location accuracy.
引文
[1]严璋,朱德恒.高电压绝缘技术[M].中国电力出版社,2007.
[2]IEC 60270 High-voltage test techniques partial discharge measurement.
[3]库钦斯基,著.徐永禧,胡维新,译.高压电气设备局部放电[M].北京水利电力出版社,1988.
[4]程养春,李成榕,岳华山,等.变压器油纸绝缘针板放电缺陷发展过程[J].高电压技术,2011,37(6):1362-1370.Cheng Yangchun,Li Chengrong,Yue Huashan,et al.Developing process of partial discharge defects of needle-plate structure on oil-paper insulation of transformer[J].High voltage engineering,2011,37(6):1362-1370.
[5]Montanari G C.Aging and life models for insulation systems based on PD detection[J].IEEE Transactions on Dielectrics&Electrical Insulation,1995,2(4):667-675.
[6]Illias H,Chen G,Lewin P L.Partial discharge behavior within a spherical cavity in a solid dielectric material as a function of frequency and amplitude of the applied voltage[J].IEEE Transactions on Dielectrics&Electrical Insulation,2011,18(2):432-443.
[7]王辉.变压器油纸绝缘典型局部放电发展过程的研究[D].北京:华北电力大学博士学位论文,2010.Wang Hui.The evolution process of typical partial discharges in oil-paper insulation transformers[D].Beijing:North China Electric Power U-niversity Doctor’s degree thesis,2010.
[8]Robles G,Fresno J M,Martíneztarifa J M.Separation of radio-frequency sources and localization of partial discharges in noisy environments[J].Sensors,2015,15(5):9882-9886.
[9]Nafar M,Niknam T,Gheisari A.Using correlation coefficients for locating partial discharge in power transformer[J].International Journal of Electrical Power&Energy Systems,2011,33(3):493-499.
[10]Member H I,Member M K.Localization of a Partial Discharge Source Using Maximum Likelihood Estimation[J].IEEE Transactions on Electrical&Electronic Engineering,2010,5(5):516-522.
[11]侯慧娟,盛戈皞,苗培青,等.基于超高频电磁波的变电站局部放电空间定位[J].高电压技术,2012,38(6):1334-1340.Hou Huijuan,Sheng Gehao,Miao Peiqing,et al.Partial discharge location based on ratio frequency antenna array in substation[J].High Voltage Engineering,2012,38(6):1334-1340.
[12]张天辰.基于电磁波天线阵列的变电站局部放电定位系统的研制[D].上海:上海交通大学硕士论文,2013.Zhang Tianchen.Study of PD location system for substation based on the electromagnetic wave antenna array[D].Shanghai:Shanghai Jiao Tong University Master’s Degree Thesis,2013.
[13]张冠军,朱明晓,王彦博,等.基于可移动特高频天线阵列的变电站站域放电源检测与定位研究[J].中国电机工程学报,2017,37(10):2761-2773.Zhang Guanjun,Zhu Mingxiao,Wang Yanbo,et al.Multiple Target Localization via Compressed Sensing in Wireless Sensor Networks[J].Journal of Chinese Electrical Engineering Science,2017,37(10):2761-2773.
[14]周文俊,李鹏飞,杨帅,等.变电站局部放电的定向天线多方位检测定位方法[J].高电压技术,2017,(5):1476-1484.Zhou Wenjun,Li Pengfei,Yang Shuai,et al.Partial discharge localization method by multi-direction measurement using directional antenna in substation[J].High Voltage Engineering,2017,(5):1476-1484.
[15]胡来招.无源定位[M].国防工业出版社,2004.
[16]周文俊,刘宇舜,李鹏飞,等.基于特高频法检测电气设备局部放电的改进型Vivaldi天线[J].电工技术学报,2017,32(12):259-267.Zhou Wenjun,Liu Yushun,Li Pengfei,et al.Modified Vivaldi antenna applied to detect partial discharge in electrical equipment based on ultrahigh frequency method[J].Transactions of China Electrotechnical Society,2017,32(12):259-267.
[17]刘君华,贾慧芹.虚拟仪器图形化编程语言[M].西安:西安电子科技大学出版社,2001.
[2]IEC 60270 High-voltage test techniques partial discharge measurement.
[3]库钦斯基,著.徐永禧,胡维新,译.高压电气设备局部放电[M].北京水利电力出版社,1988.
[4]程养春,李成榕,岳华山,等.变压器油纸绝缘针板放电缺陷发展过程[J].高电压技术,2011,37(6):1362-1370.Cheng Yangchun,Li Chengrong,Yue Huashan,et al.Developing process of partial discharge defects of needle-plate structure on oil-paper insulation of transformer[J].High voltage engineering,2011,37(6):1362-1370.
[5]Montanari G C.Aging and life models for insulation systems based on PD detection[J].IEEE Transactions on Dielectrics&Electrical Insulation,1995,2(4):667-675.
[6]Illias H,Chen G,Lewin P L.Partial discharge behavior within a spherical cavity in a solid dielectric material as a function of frequency and amplitude of the applied voltage[J].IEEE Transactions on Dielectrics&Electrical Insulation,2011,18(2):432-443.
[7]王辉.变压器油纸绝缘典型局部放电发展过程的研究[D].北京:华北电力大学博士学位论文,2010.Wang Hui.The evolution process of typical partial discharges in oil-paper insulation transformers[D].Beijing:North China Electric Power U-niversity Doctor’s degree thesis,2010.
[8]Robles G,Fresno J M,Martíneztarifa J M.Separation of radio-frequency sources and localization of partial discharges in noisy environments[J].Sensors,2015,15(5):9882-9886.
[9]Nafar M,Niknam T,Gheisari A.Using correlation coefficients for locating partial discharge in power transformer[J].International Journal of Electrical Power&Energy Systems,2011,33(3):493-499.
[10]Member H I,Member M K.Localization of a Partial Discharge Source Using Maximum Likelihood Estimation[J].IEEE Transactions on Electrical&Electronic Engineering,2010,5(5):516-522.
[11]侯慧娟,盛戈皞,苗培青,等.基于超高频电磁波的变电站局部放电空间定位[J].高电压技术,2012,38(6):1334-1340.Hou Huijuan,Sheng Gehao,Miao Peiqing,et al.Partial discharge location based on ratio frequency antenna array in substation[J].High Voltage Engineering,2012,38(6):1334-1340.
[12]张天辰.基于电磁波天线阵列的变电站局部放电定位系统的研制[D].上海:上海交通大学硕士论文,2013.Zhang Tianchen.Study of PD location system for substation based on the electromagnetic wave antenna array[D].Shanghai:Shanghai Jiao Tong University Master’s Degree Thesis,2013.
[13]张冠军,朱明晓,王彦博,等.基于可移动特高频天线阵列的变电站站域放电源检测与定位研究[J].中国电机工程学报,2017,37(10):2761-2773.Zhang Guanjun,Zhu Mingxiao,Wang Yanbo,et al.Multiple Target Localization via Compressed Sensing in Wireless Sensor Networks[J].Journal of Chinese Electrical Engineering Science,2017,37(10):2761-2773.
[14]周文俊,李鹏飞,杨帅,等.变电站局部放电的定向天线多方位检测定位方法[J].高电压技术,2017,(5):1476-1484.Zhou Wenjun,Li Pengfei,Yang Shuai,et al.Partial discharge localization method by multi-direction measurement using directional antenna in substation[J].High Voltage Engineering,2017,(5):1476-1484.
[15]胡来招.无源定位[M].国防工业出版社,2004.
[16]周文俊,刘宇舜,李鹏飞,等.基于特高频法检测电气设备局部放电的改进型Vivaldi天线[J].电工技术学报,2017,32(12):259-267.Zhou Wenjun,Liu Yushun,Li Pengfei,et al.Modified Vivaldi antenna applied to detect partial discharge in electrical equipment based on ultrahigh frequency method[J].Transactions of China Electrotechnical Society,2017,32(12):259-267.
[17]刘君华,贾慧芹.虚拟仪器图形化编程语言[M].西安:西安电子科技大学出版社,2001.