用于高压电力设备非接触振动测量的软件定义1550nm全光纤多普勒激光雷达

IF 0.5 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Radioengineering Pub Date : 2023-09-01 DOI:10.13164/re.2023.0391

X. Guan, C. Lv, Guoyan Zheng, Z. Pan, K. Cai

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引用次数: 0

摘要

．为实现高压电力设备柔性、低成本的非接触式振动测量，基于软件定义平台构建了1550 nm全光纤多普勒激光雷达。设计了一种1550nm的光纤布局，在振动信号和载波之间产生光干涉。反射振动信号由光收发器采集，载波由声光调制器产生。光拍信号由平衡检测器(BD)收集，然后发送到通用软件定义无线电(SDR)接收机。利用GNU开发平台对目标机械振动信号进行解调，实现了加速度变换、谐波分量分析和故障诊断等灵活功能。首先利用PZT振动驱动器在机械振动源上验证了多普勒激光雷达的性能，结果表明，所设计的激光雷达在工作距离达20 m的范围内可以检索到50 Hz-20 kHz的机械振动信号。为了验证激光雷达在电力变压器和气体绝缘开关柜(GIS)上的应用可行性，还进行了进一步的案例分析。

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Software-Defined 1550-nm Full-Fiber Doppler Lidar for Contactless Vibration Measurement of High Voltage Power Equipment

. In this work, a 1550-nm full-fiber Doppler lidar via software-defined platform is built to realize flexible and low-cost contactless vibration measurement of high-voltage power equipment. A 1550-nm fiber layout is designed to generate optical interference between vibration signal and carrier wave. The reflected vibration signal is collected by an optical transceiver and the carrier wave is generated by an acousto-optic modulator (AOM). The optical beat signal is collected by a balanced detector (BD) then sent into a general software defined radio (SDR) receiver. By GNU developing platform, the target mechanical vibration signal is demodulated and several flexible functions such as speed-acceleration trans, harmonic component analysis and fault diagnosis is realized. Performance of Doppler lidar is first verified on mechanical vibration source by PZT vibration actuator, results show that the designed lidar could retrieve 50 Hz–20 kHz mechanical vibration signals within the working distance is up to 20 m. Further case application scenarios on the power transformer and gas-insulated switchgear (GIS) are also conducted to verify the feasibility of proposed lidar.

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来源期刊

Radioengineering 工程技术-工程：电子与电气

CiteScore

2.00

自引率

9.10%

发文量

审稿时长

5.7 months

期刊介绍： Since 1992, the Radioengineering Journal has been publishing original scientific and engineering papers from the area of wireless communication and application of wireless technologies. The submitted papers are expected to deal with electromagnetics (antennas, propagation, microwaves), signals, circuits, optics and related fields. Each issue of the Radioengineering Journal is started by a feature article. Feature articles are organized by members of the Editorial Board to present the latest development in the selected areas of radio engineering. The Radioengineering Journal makes a maximum effort to publish submitted papers as quickly as possible. The first round of reviews should be completed within two months. Then, authors are expected to improve their manuscript within one month. If substantial changes are recommended and further reviews are requested by the reviewers, the publication time is prolonged.