CAJ | 학술논문

为保证电力系统通信的安全运行，实时监测 OPGW(光纤复合架空地线)的运行状态，提出了基于 BOTDR(布里渊光时域反射)技术对 OPGW线路温度和应变实时监测的方法。采用加温加压的方法，对 OPGW纤芯 G.652光纤的温度和应变系数进行了标定，基于实验结论，对现场运行的 OPGW线路温度和应变的分布进行了研究。同时采用差值法和相对值法分别对温度和应变引起的故障进行了分析，分析结果表明，该系统能实现 OPGW分布式温度和应变的实时测量和故障点定位。
위보증전력계통통신적안전운행，실시감측 OPGW(광섬복합가공지선)적운행상태，제출료기우 BOTDR(포리연광시역반사)기술대 OPGW선로온도화응변실시감측적방법。채용가온가압적방법，대 OPGW섬심 G.652광섬적온도화응변계수진행료표정，기우실험결론，대현장운행적 OPGW선로온도화응변적분포진행료연구。동시채용차치법화상대치법분별대온도화응변인기적고장진행료분석，분석결과표명，해계통능실현 OPGW분포식온도화응변적실시측량화고장점정위。
For ensuring the secure operation of power system communications,real-time monitoring of the running state of the OPtical fiber composite overhead Ground Wire (OPGW)is necessary.This paper presents a method on the basis of the Bril-louin Optical Time Domain Reflectometry (BOTDR)technology,in which real-time monitoring is performed on the OPGW temperature and strain.Then,it calibrates the temperature and strain coefficients of G.652 optical fiber in OPGW.On the ba-sis of the experimental results,it studies the temperature and strain distribution of OPGW in field operation and analyzes the faults brought about by temperature and strain using the differential method and the relative value method.The results indicate that the BOTDR-based online monitoring system can realize real-time measurement of distributed temperature and strain and fault location for OPGW.