本文選題：輸電導(dǎo)線　切入點：交叉跨越　出處：《太原理工大學(xué)》2016年碩士論文

【摘要】：架空輸電線路是電能的傳輸通道,是電力系統(tǒng)的重要組成部分,它的可靠性直接關(guān)系到國民經(jīng)濟的平穩(wěn)發(fā)展。然而,輸電線路的安全運行卻長期受到交叉跨越問題的影響,在受到強風(fēng)、地陷、樹木生長、溫度變化、電線老化等因素影響時,高壓或超高壓線路與交叉或跨越物的間距會發(fā)生變化,若間距過小,導(dǎo)線與交叉跨越物之間會因放電而導(dǎo)致電力事故的發(fā)生。架空輸電線路通常架設(shè)在野外,運行環(huán)境復(fù)雜,人工巡檢的方式只能定期排查交叉跨越隱患,難以完全保證線路運行的安全性和可靠性。據(jù)調(diào)查,交叉跨越參數(shù)的測量、記錄以及分析也均由人工完成,精度小,效率低。本文依托于國網(wǎng)山西省電力公司的科技項目“架空輸電線路交叉跨越的校驗與分析研究”,利用先進的傳感器測量技術(shù)、無線網(wǎng)絡(luò)通信技術(shù)和計算機技術(shù),實現(xiàn)了架空輸電線路交叉跨越監(jiān)測與分析系統(tǒng)。圍繞交叉跨越問題的實際需求,本文主要研究了以下內(nèi)容:(1)以懸鏈線方程為基礎(chǔ),分別建立了輸電線路在無風(fēng)和風(fēng)偏時的懸鏈線模型,給出了交叉跨越距離和弧垂的計算公式。(2)輸電線路的數(shù)學(xué)表達式與傾斜角有很大的關(guān)聯(lián)性,考慮到傳統(tǒng)的單傾角法測量誤差很大,提出了多傾角測量的交叉跨越監(jiān)測方法。(3)結(jié)合無線射頻技術(shù)和GPRS通信技術(shù),建立了“星形+遠程”的無線通信網(wǎng)絡(luò)。(4)完成了中繼器和傳感器節(jié)點的硬件設(shè)計。設(shè)計了傾角采集電路,分析了傾角傳感器的誤差來源和修正方法。根據(jù)數(shù)據(jù)手冊,對各個電路做了詳細的功耗分析。(5)采用任務(wù)輪詢的程序架構(gòu),詳細闡述了中繼器和傳感器節(jié)點的程序設(shè)計。(6)通過程序設(shè)計的理論,實現(xiàn)了服務(wù)器在線監(jiān)測軟件的設(shè)計和交叉跨越測量軟件的設(shè)計。(7)通過模擬實驗,驗證了整個系統(tǒng)的可行性和可靠性。
[Abstract]:Overhead transmission line is the power transmission channel, is an important part of power system, its reliability is directly related to the stable development of the national economy. However, the safe operation of the transmission line is influenced by long-term crossing problems, subsidence under strong winds, trees, growth, temperature, electrical aging and other factors when the pressure or spacing of EHV transmission lines and cross or cross will change, if the space is too small, and the cross wire cross between the power accidents caused by the discharge. The overhead transmission line is usually built in the wild, complex environment, manual inspection methods can regularly check crossing problems, difficult to completely to ensure the safety and reliability of line operation. According to the survey, measurement of crossing parameters, recording and analyzing were done by hand, the precision of small, low efficiency. Based on the national network of mountain Science and technology project "West Power Company of overhead transmission lines crossing the verification and analysis of research, using sensor measurement technology, wireless network communication technology and computer technology, the overhead transmission lines crossing monitoring and analysis system. The actual demand around the crossing problem, this paper mainly studies the following contents: (1) with catenary equations based on the catenary model in wind and the wind when the transmission lines are established respectively, gives the calculation formula of crossing distance and sag. (2) the mathematical expression of the transmission line and the tilt angle have great relevance, considering that the traditional method of single angle measurement error is large, the crossing method of multi angle measurement monitoring. (3) combined with radio frequency technology and GPRS communication technology, the establishment of the" star + remote wireless communication network ". (4) completed and repeater The hardware design of sensor nodes. The angle acquisition circuit design, analyzes the error sources of angle sensor and correction method. According to the data sheet for each circuit to do a detailed analysis of the power consumption. (5) the task polling program structure, describes the repeater and the sensor nodes (6) through the program design. The program design theory, design and implementation of the design and cross server monitoring software across the measuring software. (7) through the simulation experiments verify the feasibility and reliability of the whole system.

【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TM755

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