本文選題：地下電纜 + 地震檢波器��； 參考：《浙江大學》2017年碩士論文

【摘要】：地下電纜是城市電力系統(tǒng)的主要組成之一,地下電纜配電方式有效的解決了城市用地的緊張與電力供電走廊占地的矛盾,同時也避免了極端惡劣天氣對供電系統(tǒng)造成的惡劣影響,極大的提高了配電系統(tǒng)的可靠性。與此同時,隨著城區(qū)電纜線路的增多,市政道路施工時,大型機械破壞地下電纜的情況也時有發(fā)生,給電網(wǎng)的安全運行和施工人員的生命財產(chǎn)安全帶來嚴重威脅。本文針對地下電纜的鋪設(shè)特點及市政道路施工的流程,提出了一種基于地震檢波器陣列的施工源檢測技術(shù),通過檢測市政道路施工中破碎錘破壞硬質(zhì)路表所產(chǎn)生的振動信號對施工源位置進行定位并及時向相關(guān)部門發(fā)送預警以實現(xiàn)保護地下電纜的目的。其中主要研究內(nèi)容如下:1)分析了地下電纜防外力破壞技術(shù)的國內(nèi)外研究現(xiàn)狀及不足。設(shè)計了一種通過檢測破碎錘對硬質(zhì)地表破碎過程中所產(chǎn)生的周期性脈沖信號以定位施工源位置以進行預警的方案。2)分析了地震檢波器技術(shù)的研究現(xiàn)狀,對傳統(tǒng)檢波器和MEMS檢波器進行詳細比較。3)對目前幾種常見的源定位算法進行了深入的分析比較,考量了他們各自在算法時間復雜度、空間復雜度的優(yōu)劣。4)比較了目前常用的時延估計算法,選擇了最適合課題需求的基于小波變換的時延估計法。5)分別對直線陣、圓陣、十字陣三種檢波器陣列組合方式進行了分析,討論了他們各自的適用環(huán)境。6)針對由891-2型檢波器組成的十字陣進行實地實驗,考察其在不同距離、不同方向的定位性能。同時分別從實驗環(huán)境、測量誤差、遠場模型誤差、時延估計誤差的角度對實驗數(shù)據(jù)進行了誤差分析。7)根據(jù)上述研究內(nèi)容,提出了一套基于地震檢波器陣列的地下電纜防外力破壞系統(tǒng)的設(shè)計方案,包括系統(tǒng)硬件設(shè)計、Linux操作系統(tǒng)移植、系統(tǒng)軟件設(shè)計。并在系統(tǒng)樣機的基礎(chǔ)上進行了測試及誤差分析。
[Abstract]:Underground cable is one of the main components of urban power system. The distribution mode of underground cable effectively solves the contradiction between the tension of urban land use and the occupation of power supply corridor. At the same time, it avoids the bad influence of extreme bad weather on the power supply system, and greatly improves the reliability of the distribution system. At the same time, with the increase of cable lines in urban areas, the destruction of underground cables by large-scale machinery occurs from time to time during the construction of municipal roads, which poses a serious threat to the safe operation of power grids and the safety of life and property of construction personnel. In this paper, according to the laying characteristics of underground cable and the construction flow of municipal road, a construction source detection technology based on geophone array is proposed. The location of the construction source is located by detecting the vibration signal generated by the broken hammer in the construction of municipal roads and the alarm is sent to the relevant departments in order to protect the underground cable. The main research contents are as follows: 1. In this paper, a scheme of detecting periodic pulse signals produced by crushing hammer to locate the position of construction source to carry out early warning is designed. (2) the research status of geophone technology is analyzed. Comparing the traditional geophone and MEMS detector in detail. 3) deeply analyzing and comparing several common source location algorithms, and considering their time complexity. The space complexity. 4) compare the commonly used time delay estimation algorithms, select the best time delay estimation method based on wavelet transform. 5) the linear array, circular array, In this paper, three kinds of array combination of cross array geophone are analyzed, and their respective suitable environment. 6) the field experiment of cross array composed of 891-2 geophone is carried out, and its location performance in different distance and direction is investigated. At the same time, the experimental data are analyzed from the angles of experimental environment, measurement error, far-field model error and time-delay estimation error. This paper presents a design scheme of underground cable anti-damage system based on geophone array, including hardware design, Linux operating system transplantation and system software design. Based on the prototype of the system, the test and error analysis are carried out.
【學位授予單位】：浙江大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TM75

【相似文獻】

相關(guān)期刊論文 前10條

1 孟慶民;;地下電纜溫度場的場路結(jié)合算法[J];電網(wǎng)技術(shù);2009年20期

2 高明;周仁才;賀賢華;;地下電纜信息標準化管理模式設(shè)計和應(yīng)用前景[J];浙江電力;2012年05期

3 高寧;;應(yīng)用新型電纜標志樁保護地下電纜[J];農(nóng)村電工;2013年09期

4 朱泰;敷設(shè)地下電纜用的移動型設(shè)備[J];電力技術(shù)通訊;1977年07期

5 陸明偉;地下電纜探測儀功能優(yōu)化的關(guān)鍵技術(shù)[J];鐵道通信信號;1996年04期

6 ;紐約采用“微創(chuàng)”法安裝地下電纜[J];農(nóng)村電工;2013年07期

7 劉忠權(quán);;對季節(jié)凍土地區(qū)通信地下電纜埋置深度問題的探討[J];鐵道標準設(shè)計通訊;1989年09期

8 ;新穎地下電纜[J];山東電力技術(shù);1995年01期

9 戚國彬;日本東京一條500kV地下電纜簡介[J];供用電;1998年03期

10 黃春楠;;野蠻施工令地下電纜傷不起[J];廣西電業(yè);2013年12期

相關(guān)會議論文 前1條

1 杝文通;游健煃;，

本文編號：1853937