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Distributed Fiber Sensing and Dynamic Rating of Power Cables Pub Date : 2019-09-13 DOI: 10.1002/9781119487739.index
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引用次数: 0
Distributed Fiber Optic Temperature Sensing 分布式光纤温度传感
Distributed Fiber Sensing and Dynamic Rating of Power Cables Pub Date : 2019-09-13 DOI: 10.1002/9781119487739.ch3
S. Cherukupalli, G. Anders
{"title":"Distributed Fiber Optic Temperature Sensing","authors":"S. Cherukupalli, G. Anders","doi":"10.1002/9781119487739.ch3","DOIUrl":"https://doi.org/10.1002/9781119487739.ch3","url":null,"abstract":"This chapter reviews the basic principles of the fiber optic temperature sensing. Distributed temperature sensing (DTS) systems inject a narrow laser pulse into an optical fiber through a directional coupler. The Rayleigh backscattered component is the strongest because of density and composition fluctuations and has the same wavelength as the primary laser pulse. The Raman backscattered components are caused by thermally influenced molecular vibrations from the incident propagating light pulse and their intensity depends on temperature. The Brillouin backscattered components are caused by lattice vibrations from the propagating light pulse. Adopters of the Brillouin technology‐ based DTS systems claim to be capable of providing temperature profiles for open‐ended fiber distances of 100—200km with the aid of optical amplifiers. DTS systems typically have the following five major hardware components: optical fiber; laser; photodetector and optical‐electrical processing unit; controller; optical multiplexing switch allowing temperature profiling of more than one fiber optic cable, at almost the same time.","PeriodicalId":288973,"journal":{"name":"Distributed Fiber Sensing and Dynamic Rating of Power Cables","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131851657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
DTS Systems DTS系统
Distributed Fiber Sensing and Dynamic Rating of Power Cables Pub Date : 2019-09-13 DOI: 10.1002/9781119487739.ch6
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引用次数: 0
Types of Power Cables and Cable with Integrated Fibers 电源线和集成光纤电缆的种类
Distributed Fiber Sensing and Dynamic Rating of Power Cables Pub Date : 2019-09-13 DOI: 10.1002/9781119487739.ch5
{"title":"Types of Power Cables and Cable with Integrated Fibers","authors":"","doi":"10.1002/9781119487739.ch5","DOIUrl":"https://doi.org/10.1002/9781119487739.ch5","url":null,"abstract":"","PeriodicalId":288973,"journal":{"name":"Distributed Fiber Sensing and Dynamic Rating of Power Cables","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123799757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of Fiber Optic Sensing 光纤传感的应用
Distributed Fiber Sensing and Dynamic Rating of Power Cables Pub Date : 2019-09-13 DOI: 10.1002/9781119487739.ch1
{"title":"Application of Fiber Optic Sensing","authors":"","doi":"10.1002/9781119487739.ch1","DOIUrl":"https://doi.org/10.1002/9781119487739.ch1","url":null,"abstract":"","PeriodicalId":288973,"journal":{"name":"Distributed Fiber Sensing and Dynamic Rating of Power Cables","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131105206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
DTS System Calibrators DTS系统校准器
Distributed Fiber Sensing and Dynamic Rating of Power Cables Pub Date : 2019-09-13 DOI: 10.1002/9781119487739.ch7
S. Cherukupalli, G. Anders
{"title":"DTS System Calibrators","authors":"S. Cherukupalli, G. Anders","doi":"10.1002/9781119487739.ch7","DOIUrl":"https://doi.org/10.1002/9781119487739.ch7","url":null,"abstract":"This chapter discusses the use of DTS calibrators and how they may benefit in improving the accuracy of the DTS data over the long term. To the DTS world particularly, in the oil and gas industry such a need for accurate and calibrated temperature measurements are less onerous but they become very important in the electric utility market. The challenge for the classical calibration is its costs. This is particularly affecting the DTS systems placed at remote control room locations that require a day of travel. Quite often it is the manufacturers' recommendation to undertake the DTS calibration by applying the thermal environment at the remote cable ends. By placing a remote fiber end at controlled temperature and confirming that the DTS unit measures this temperature accurately improves the confidence in measurements all along the cable.","PeriodicalId":288973,"journal":{"name":"Distributed Fiber Sensing and Dynamic Rating of Power Cables","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131031359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
DTS System Factory and Site Acceptance Tests DTS系统工厂和现场验收测试
Distributed Fiber Sensing and Dynamic Rating of Power Cables Pub Date : 2019-09-13 DOI: 10.1002/9781119487739.ch8
{"title":"DTS System Factory and Site Acceptance Tests","authors":"","doi":"10.1002/9781119487739.ch8","DOIUrl":"https://doi.org/10.1002/9781119487739.ch8","url":null,"abstract":"","PeriodicalId":288973,"journal":{"name":"Distributed Fiber Sensing and Dynamic Rating of Power Cables","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133732783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
How Can Temperature Data Be Used to Forecast Circuit Ratings? 如何使用温度数据来预测电路的额定值?
Distributed Fiber Sensing and Dynamic Rating of Power Cables Pub Date : 2019-09-13 DOI: 10.1002/9781119487739.ch9
{"title":"How Can Temperature Data Be Used to Forecast Circuit Ratings?","authors":"","doi":"10.1002/9781119487739.ch9","DOIUrl":"https://doi.org/10.1002/9781119487739.ch9","url":null,"abstract":"","PeriodicalId":288973,"journal":{"name":"Distributed Fiber Sensing and Dynamic Rating of Power Cables","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130083218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Use of Distributed Sensing for Strain Measurement and Acoustic Monitoring in Power Cables 分布式传感在电力电缆应变测量和声学监测中的应用
Distributed Fiber Sensing and Dynamic Rating of Power Cables Pub Date : 1900-01-01 DOI: 10.1002/9781119487739.ch11
S. Cherukupalli, G. Anders
{"title":"Use of Distributed Sensing for Strain Measurement and Acoustic Monitoring in Power Cables","authors":"S. Cherukupalli, G. Anders","doi":"10.1002/9781119487739.ch11","DOIUrl":"https://doi.org/10.1002/9781119487739.ch11","url":null,"abstract":"This chapter describes distributed strain sensing and distributed acoustic sensing (DAS) applications of the fiber optic sensor for power cable applications. Distributed strain monitoring (DSM) systems are arriving into the market place. The strain measurement would help identify the exact touchdown point. Including an optical fiber in the distribution cables provided opportunities not only for telecommunication and temperature measurements using a distributed temperature sensing system but also proved useful in strain measurement via a DSM system. The chapter discusses studies completed at BC Hydro's subsidiary test laboratory that aim to understand the sensitivities of such a system, and identify some of the challenges surrounding its implementation on a real submarine cable application might offer. Cable stress can be calculated from the strain values within certain limits. DAS systems are fiber optic‐based optoelectronic instruments which measure acoustic interactions along the length of a fiber optic cable.","PeriodicalId":288973,"journal":{"name":"Distributed Fiber Sensing and Dynamic Rating of Power Cables","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115952313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Distributed Fiber Optic Sensing 分布式光纤传感
Distributed Fiber Sensing and Dynamic Rating of Power Cables Pub Date : 1900-01-01 DOI: 10.1002/9781119487739.ch2
S. Cherukupalli, G. Anders
{"title":"Distributed Fiber Optic Sensing","authors":"S. Cherukupalli, G. Anders","doi":"10.1002/9781119487739.ch2","DOIUrl":"https://doi.org/10.1002/9781119487739.ch2","url":null,"abstract":"This chapter shows that the fiber optic sensing has several advantages over the traditional measurement technologies. One of the most significant disadvantages of the distributed sensing technology is the cost. If there is no need to measure temperature at several different locations, the deployment of conventional thermocouples will be a fraction of the cost as compared to a FO system. One of the main reasons why power cable temperature measurement of is desirable is because it very strongly influences the transmission capacity as the cable ampacity is primarily determined by the allowable conductor temperature. Procurement, installation, and testing of DTS systems are certainly important and can be relatively complex, but at least equally important is deployment of the sensing fibers to obtain optimum results. Since the majority of new high‐voltage cables are equipped with fiber optic sensors, the question arises how to employ FOSs in the existing lines.","PeriodicalId":288973,"journal":{"name":"Distributed Fiber Sensing and Dynamic Rating of Power Cables","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122187927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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