Design of an Overvoltage Online Monitoring Device Based on Optical Fiber Voltage Sensor

Abstract:

An overvoltage online monitoring and data analysis device based on optical fiber voltage sensor is designed. The device adopts BGO crystal as sensing head, optical fiber as transmission medium. Four A/D converters with sampling rate of 20 MHz are equipped in Data acquisition unit to achieve four-channel concurrent high-speed data acquisition. Virtual instrument LabVIEW is used to complete data analysis and processing. Compared with other voltage monitoring device, it has good anti-interference performance and fast transient response. Physical simulation experiments prove that the system can meet the requirements of overvoltage monitoring. Its application provides accurate data for power system fault analysis and insulation coordination design.

• Periodical: Advanced Materials Research (Volume 978)
• Pages: 72-77
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.978.72
• Online since: June 2014
• Authors: Hai Chao Guo*
• Keywords: Data Analysis, Online Monitoring, Optical Voltage Sensor, Overvoltage, Virtual Instrument (VI)

References

[1] Yang Xiu, Lu Tiecheng etc. Development of the on-line Monitoring Device for Internal Overvoltage in Power Distribution Netwokr [J]. GuangXi Electric Power Technology, 2001, 2: 1-3.

[2] Tang Xiang, Xu Yunzhi. The Study of Electric-Network Over-Voltage Automatic-Detection System with Microcomputer [J]. Journal of North China Electric Power University, 1997, 24(4): 20-35.

[3] T. Mitsui, K. Hosoe, H. Usami, S. Miyamoto. Development of fiber-optical voltage sensors and magnetic field sensor [J]. IEEE Transactions on Power Delivery, 1987, 2: 87-93.

DOI: 10.1109/tpwrd.1987.4308077

[4] Nicolas A.F. Jaeger. Integrated optics pockels cell high voltage sensor [J]. IEEE Transactions on Power Deliver. 1995, 10: 127-134.

DOI: 10.1109/61.368406

[5] Xiao Yueyu. Design and Performance Measurement of a type of Optical Voltage Sensor [J]. Microcomputer Information, 2009, 25 (9-1): 24-25.

[6] Cheng Yunguo, Liu Huijin etc. Basic Principle and Current Development of Optical Voltage Transformer [J]. Electric Power Automation Equipment, 2004, 5: 87-91.

[7] Wang Qian, Hou Wen etc. Research on Optical Voltage Transformers Based on Pockels Effect [J]. Manufacturing Automation, 2012, 34(4): 81-82.

[8] Wang Keqiang, Zhan Kangsheng. Measurement System of Fiber- current Sensor Base on VI [J]. Microcomputer Information, 2006, 22(6-1): 169-171.

[9] Lv Haijiang, Cai Kangsong etc. Performance of BGO Crystal [J]. Journal of Jishou University (Natural Science Edition), 2006, 27(2): 58-60.

[10] Zhou Kai, Zhang Tao etc. On-line Monitoring of Overvoltage in Power Distribution Network Based on the Capacitance Divider [J]. Automation of Electric Power Systoms, 2007, 31(21): 86-89.

[11] Lan Haitao, Sima Wenxia etc. Study on Data Acquisition of Overvoltage Online Monitoring System of High Voltage Power Grid [J]. High Voltage Engineering, 2007, 33(3): 79-82.

[12] Yang Leping, Li Haitao etc. LabVIEW High-level Programing[M]. Tsinghua university press, Beijing: (2003).