【摘要】：輸電線路是電力系統(tǒng)的重要組成部分,是電網(wǎng)安全運(yùn)行的基礎(chǔ)。輸電線路設(shè)計(jì)和運(yùn)行時(shí),需要著重考慮的是導(dǎo)線的應(yīng)力與弧垂,由于其對(duì)輸電線路的安全供電,以及運(yùn)行至關(guān)重要,因此必須控制在設(shè)計(jì)規(guī)定的范圍內(nèi)。要把輸電線路系統(tǒng)變得更加智能化,就必須對(duì)輸電線路上的所有相關(guān)狀態(tài)參數(shù)進(jìn)行實(shí)時(shí)監(jiān)測(cè)。這些參數(shù)中最主要的就是導(dǎo)線的應(yīng)力大小和弧垂,因此對(duì)其進(jìn)行有效監(jiān)測(cè)和管理具有非常重要的意義,是智能化輸電線路的重要一環(huán)。 本文對(duì)輸電線路導(dǎo)線應(yīng)力與弧垂進(jìn)行了詳細(xì)的理論分析,深入研究了在線監(jiān)測(cè)的國(guó)內(nèi)、外研究現(xiàn)狀及其監(jiān)測(cè)方法。對(duì)目前應(yīng)力在監(jiān)測(cè)中普遍采用的應(yīng)力傳感器的優(yōu)缺點(diǎn)進(jìn)行了分析,以及對(duì)弧垂監(jiān)測(cè)的幾種方法進(jìn)行了研究。本文采用雙基地聲納定位法來監(jiān)測(cè)弧垂,對(duì)其測(cè)量原理和精度都進(jìn)行了詳盡的分析。此法不必計(jì)算弧垂的有關(guān)量,而是通過對(duì)有關(guān)參數(shù)進(jìn)行計(jì)算而得出弧垂。通過聲納法直接測(cè)得弧垂,快速、準(zhǔn)確,且精度高。同時(shí),構(gòu)架了導(dǎo)線應(yīng)力與弧垂監(jiān)測(cè)的軟硬件系統(tǒng),并對(duì)各個(gè)模塊進(jìn)行說明。
[Abstract]:Transmission line is an important part of power system and the basis of safe operation of power network. In the design and operation of transmission lines, the stress and sag of conductors should be taken into account. Since they are very important to the safe power supply and operation of transmission lines, they must be controlled within the scope of design. In order to make the transmission line system more intelligent, it is necessary to monitor all the relevant state parameters on the transmission line in real time. The most important of these parameters is the stress size and sag of the conductor, so it is very important to monitor and manage them effectively and is an important part of intelligent transmission line. In this paper, the stress and sag of transmission line conductors are analyzed in detail, and the domestic and foreign research status and monitoring methods of on-line monitoring are deeply studied. The advantages and disadvantages of stress sensors which are widely used in stress monitoring are analyzed, and several methods of sag monitoring are studied. In this paper, bistatic sonar positioning method is used to monitor sag, and its measuring principle and accuracy are analyzed in detail. This method does not need to calculate the relevant quantity of sag, but obtains sag by calculating the relevant parameters. The sag can be measured directly by sonar. It is fast, accurate and accurate. At the same time, the software and hardware system of traverse stress and sag monitoring is set up, and each module is explained.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM75

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