摘要

隨著電力系統(tǒng)規(guī)模日益擴(kuò)大，電網(wǎng)結(jié)構(gòu)愈加復(fù)雜，傳統(tǒng)故障行波定位方法將無法滿足系統(tǒng)故障定位穩(wěn)定性和經(jīng)濟(jì)性的要求。因此，高壓輸電線路故障點(diǎn)的快速、精確定位新技術(shù)與新方法研究已成為國內(nèi)外科技工作者廣泛關(guān)注的熱點(diǎn)。本文設(shè)計(jì)了一個(gè)較為合理的行波故障定位的網(wǎng)絡(luò),并完成了軟件的初步設(shè)計(jì),并驗(yàn)證了其可靠性和實(shí)用性。
文章的主要內(nèi)容也是關(guān)鍵技術(shù)部分就是故障行波定位的網(wǎng)絡(luò)設(shè)計(jì)及其軟件設(shè)計(jì)。網(wǎng)絡(luò)設(shè)計(jì)是在株洲電網(wǎng)現(xiàn)有的網(wǎng)架上著手的，故對整個(gè)系統(tǒng)進(jìn)行了較為合理的分析和故障定位網(wǎng)絡(luò)設(shè)計(jì)，并通過ATP/EMTP進(jìn)行了仿真分析和驗(yàn)證；基于網(wǎng)絡(luò)的故障定位軟件設(shè)計(jì)，主要是在確定系統(tǒng)故障后,行波定位裝置將故障記錄單元和GPS時(shí)鐘單元記錄的行波數(shù)據(jù)及時(shí)間信息通過通用分組無線電業(yè)務(wù)(GPRS) 網(wǎng)絡(luò)上傳到故障定位主機(jī),故障定位主機(jī)進(jìn)行故障點(diǎn)計(jì)算、數(shù)據(jù)庫的存儲和查詢以及故障信息的發(fā)布等，真正實(shí)現(xiàn)了當(dāng)任意一臺裝置發(fā)生故障或啟動失靈，都可以根據(jù)其他變電站的記錄數(shù)據(jù)可靠定位，有效的提高了定位結(jié)果的精度和可靠性。

關(guān)鍵詞：故障測距； GPS時(shí)鐘； GPRS ； 網(wǎng)絡(luò)定位； ATP/EMTP仿真分析




TRAVELING WAVE FAULT LOCATION NETWORK DESIGN

ABSTRACT

With the increasing size of power systems, power structures become more complex, the traditional method of Traveling Wave Fault Location Fault Location System will not meet the stability and economy requirements. Therefore, the high voltage transmission line fault fast and precise positioning of new technologies and new methods of foreign technology workers has become widespread attention. This paper designs a more reasonable traveling wave fault location of the network, and completed the preliminary design of the software and verify its reliability and practicability.
Core part of the article is also part of key technologies Traveling Wave Fault Location and network design software design. Zhuzhou power network design is to proceed on the existing grid, and therefore the whole system was a more reasonable analysis and fault location network design, and through the ATP / EMTP simulation analysis and verification; Based on network of fault positioning software design, main is in determine system fault Hou, line wave positioning device will fault records unit and GPS clock unit records of line wave data and the time information by General group radio business (GPRS) network Shang to fault positioning host, fault positioning host for fault points calculation, and database of storage and query and fault information of publishing,, real implementation has Dang any a Taiwan device occurs fault or started failure, are can under other substation of records data reliable positioning, effective of improve has positioning results of precision and reliability.

Key words: Fault location；GPS Clock；GPRS；Network location；EMTP simulation


目 錄

1 緒論 1
1.1 選題的背景和意義 1
1.2 輸電網(wǎng)故障行波定位原理概述 2
1.3 國內(nèi)外故障行波定位的應(yīng)用及研究 5
1.4 本文所作的主要工作 7
2 行波故障定位理論及關(guān)鍵技術(shù)的研究 8
2.1 行波理論詳述 8
2.2 GPS時(shí)鐘的研究分析 12
2.2.1 同步時(shí)鐘的簡介 12
2.2.2 GPS衛(wèi)星同步時(shí)鐘的應(yīng)用 13
3 基于株洲電網(wǎng)行波故障網(wǎng)絡(luò)設(shè)計(jì) 16
3.1 株洲電網(wǎng)220KV電力系統(tǒng)分析 16
3.1.1 株洲電網(wǎng)故障行波定位網(wǎng)絡(luò)設(shè)計(jì) 16
3.1.2 故障定位方案仿真分析 18
3.2 考慮110KV電網(wǎng)時(shí)分析 22
3.3 小結(jié) 29
4 故障定位的軟件設(shè)計(jì) 30
4.1 軟件設(shè)計(jì) 30
4.1.1軟件的整體設(shè)計(jì) 30
4.1.2 故障計(jì)算單元 31
4.1.3 GPRS無線通信單元 33
4.1.3 數(shù)據(jù)庫管理單元 33
4.1.4 故障信息發(fā)布單元 34
4.2 軟件測試 34
4.3 結(jié)論 37
5 全文總結(jié) 38
參考文獻(xiàn) 39
致 謝 41