本文關(guān)鍵詞：繼電保護(hù)失效檢測(cè)及檢修策略研究　出處：《華北電力大學(xué)(北京)》2016年博士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 失效機(jī)理 在線監(jiān)測(cè) 容錯(cuò)技術(shù) 失效檢測(cè) 檢修策略 自動(dòng)測(cè)試

【摘要】：隨著電網(wǎng)規(guī)模逐步擴(kuò)大,網(wǎng)架結(jié)構(gòu)日趨復(fù)雜,電網(wǎng)安全更加依賴?yán)^電保護(hù)的可靠性。上世紀(jì)90年代末期微機(jī)保護(hù)開(kāi)始推廣應(yīng)用,大幅提升了繼電保護(hù)正確動(dòng)作率,但保護(hù)軟件缺陷、裝置硬件故障、二次回路異常、人為操作失誤等原因引起的不正確動(dòng)作事件屢有發(fā)生,甚至導(dǎo)致電網(wǎng)安全事故。因此,有必要分析保護(hù)不正確動(dòng)作原因并提出相應(yīng)的防范措施,以便最大程度地降低不正確動(dòng)作的風(fēng)險(xiǎn)。本文在失效機(jī)理分析的基礎(chǔ)上,對(duì)繼電保護(hù)失效檢測(cè)和容錯(cuò)技術(shù)進(jìn)行了充分的研究,取得了如下主要的創(chuàng)新成果：(1)研究了繼電保護(hù)的失效機(jī)理,包括失效影響、失效原因,提出基于失效模式、后果與危險(xiǎn)度分析(FMECA)的繼電保護(hù)三維一體綜合檢修策略。綜合應(yīng)用空間和時(shí)間信息,建立了包含檢測(cè)型健康因子、隨機(jī)失效健康因子、應(yīng)用環(huán)境健康因子、可靠性健康因子、改進(jìn)型健康因子的健康指數(shù)評(píng)價(jià)模型,利用確定性信息反映設(shè)備個(gè)體當(dāng)前的健康狀況,利用概率統(tǒng)計(jì)信息預(yù)測(cè)設(shè)備狀態(tài)未來(lái)的發(fā)展趨勢(shì),解決了狀態(tài)評(píng)價(jià)結(jié)果無(wú)法指導(dǎo)設(shè)備個(gè)體檢修決策的問(wèn)題。建立計(jì)及人工巡檢費(fèi)用的馬爾科夫狀態(tài)空間模型,揭示了人工巡檢周期與檢修經(jīng)濟(jì)成本的關(guān)系,解決了變電站無(wú)人值守模式下人工巡檢周期確定缺乏理論依據(jù)的問(wèn)題。(2)揭示了微機(jī)保護(hù)失效檢測(cè)存在盲區(qū)的原因,提出了動(dòng)作特性匹配與冗余設(shè)計(jì)相結(jié)合的容錯(cuò)新方法。建立包含保護(hù)動(dòng)作區(qū)、測(cè)量異常區(qū)和檢測(cè)閉鎖區(qū)的動(dòng)作特性平面,提出了應(yīng)用Venn圖分析失效檢測(cè)和動(dòng)作判別特性匹配度的方法,解決了保護(hù)檢測(cè)閉鎖區(qū)沒(méi)有通用設(shè)計(jì)原則的問(wèn)題；提出了距離Ⅲ段保護(hù)阻抗偏移特性的自適應(yīng)判據(jù),解決了區(qū)外故障伴隨PT斷線時(shí)距離Ⅲ段誤動(dòng)的問(wèn)題；建立雙冗余設(shè)計(jì)的可靠性分析模型,提出了繼電保護(hù)主動(dòng)冗余設(shè)計(jì)方法,降低了停電檢修前的誤動(dòng)風(fēng)險(xiǎn)。(3)提出了基于多源信息挖掘技術(shù)的繼電保護(hù)在線監(jiān)測(cè)方法,從站域和廣域兩個(gè)層面增強(qiáng)了繼電保護(hù)失效檢測(cè)能力。建立繼電保護(hù)自檢信息模型和通用狀態(tài)評(píng)價(jià)模型,揭示自檢信息與設(shè)備狀態(tài)的對(duì)應(yīng)關(guān)系,實(shí)現(xiàn)了檢測(cè)型健康因子的實(shí)時(shí)動(dòng)態(tài)評(píng)價(jià)；提出了基于同源信息比對(duì)的關(guān)聯(lián)監(jiān)測(cè)方法,提高了站域?qū)用娑位芈冯[性故障的檢測(cè)能力；建立基于XML Schema的故障錄波模型和保護(hù)裝置內(nèi)部中間節(jié)點(diǎn)信息模型,提出錄波數(shù)據(jù)多抽樣率變換算法,解決了復(fù)雜故障條件下錄波通道智能分群、采樣頻率歸一化、動(dòng)作邏輯可視化的問(wèn)題,提高了基于廣域信息的保護(hù)動(dòng)作行為分析和診斷水平。(4)提出基于IEC61850標(biāo)準(zhǔn)的繼電保護(hù)狀態(tài)檢測(cè)方法,范圍覆蓋SV、GOOSE及保護(hù)功能,實(shí)現(xiàn)了智能變電站繼電保護(hù)的免維護(hù)。揭示了模擬式合并單元可靠性低的原因,提出基于采樣值等差分和諧波含量比的數(shù)據(jù)有效性判別方法,提高了合并單元數(shù)據(jù)品質(zhì)的檢測(cè)和容錯(cuò)能力。提出基于模型匹配的智能變電站繼電保護(hù)自動(dòng)測(cè)試方法,實(shí)現(xiàn)“有主”的自動(dòng)測(cè)試,解決了人工干預(yù)環(huán)節(jié)多、試驗(yàn)結(jié)果不直觀的問(wèn)題,提高了檢修效率和安全水平。提出基于擴(kuò)展CID模型命令監(jiān)視數(shù)據(jù)點(diǎn)的GOOSE回路閉環(huán)監(jiān)測(cè)方法,實(shí)現(xiàn)“自主”的自動(dòng)測(cè)試,進(jìn)一步提高智能變電站繼電保護(hù)的狀態(tài)檢測(cè)能力。
[Abstract]:Along with the network gradually expand the scale of grid structure is becoming more and more complex, more dependent on the reliability of power grid safety protection. In the end of 90s began to promote the application of microcomputer protection, greatly improving the relay correct operating rate, but the protection of software defects, device hardware failure, the two loop anomalous, incorrect action of incident caused by human error and other reasons. Frequently occur, and even lead to power grid accidents. Therefore, it is necessary to analyze the reasons for the incorrect action of protection and puts forward some corresponding preventive measures, in order to reduce the risk of incorrect action maximum. Based on the analysis of the failure mechanism, the failure detection and fault tolerance technology of relay protection of the full study, are as follows the main innovations: (1) study on the failure mechanism of the relay protection, including the failure, failure, failure mode is proposed based on the consequences and Risk analysis (FMECA) comprehensive maintenance strategy of three-dimensional integrated relay protection. The comprehensive application of spatial and temporal information, including the detection of health factors, health factors of random failure, the application of environmental health factors, health factors of health evaluation index of reliability, improved health factor model, using the deterministic information reflecting the health condition of the individual equipment and predict the future development trend of the equipment state by using probability statistics, evaluation results can not solve the state guiding equipment overhaul individual decision problems. Markoff state space model is established and the manual inspection fees, reveals the relationship between artificial inspection cycle and maintenance cost, solve the substation unattended mode manual inspection cycle to determine the lack of theory on the basis of the problem. (2) revealed the microcomputer protection failure detection area, a special action A new method of fault tolerant matching combined with redundant design. Includes the establishment of protection area, plane motion characteristic anomaly area measurement and detection blocking area, puts forward the application analysis of Venn failure detection and motion discrimination features matching degree method, solves the protection blocking detection there is no universal design principles; adaptive distance criterion section III presents the characteristics of offset impedance protection, solve the external fault with PT disconnection of the misoperation problem; establish the reliability analysis model of dual redundant design, puts forward the design method of active redundancy protection, reduce the power outage maintenance before the misoperation risk. (3) proposed online monitoring of relay protection a method of multi-source information mining technology based on two aspects from the station and the wide domain enhances the relay protection failure detection capability. Establishment of relay protection information model and the general state of self evaluation The model reveals the relationship, self information and the state of the equipment, realize the real-time dynamic detection evaluation of health factor; put forward the related monitoring method based on homologous information comparison, to improve the detection ability of the two loop station fault hidden level; the establishment of fault recorder based on XML Schema model and internal intermediate node information protection device the model proposed, recorded data of multi sampling rate conversion algorithm, to solve the complex fault condition recording channel intelligent grouping, sampling frequency, action logic visualization problems, improve the protection action of wide area information analysis and diagnosis level. (4) based on the proposed relay protection IEC61850 state detection method based on coverage SV, GOOSE and protection function, realize maintenance of intelligent substation relay protection. The reliability of the simulation reveals the type of merging unit low reason based On the effectiveness of differential method and harmonic data sampling, improves the quality of data merging unit detection and fault tolerance. The automatic test method of relay protection in Smart Substation Based on model matching, the realization of automatic test are the main ", solve the human intervention process, test result is not intuitive problem and improves the maintenance efficiency and safety level. GOOSE closed loop monitoring method of extended CID model command monitoring data points based on the realization of automatic testing autonomy", to further improve the intelligent substation relay protection status detection ability.

【學(xué)位授予單位】：華北電力大學(xué)(北京)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2016
【分類號(hào)】：TM77

【相似文獻(xiàn)】

相關(guān)期刊論文 前2條

1 吳寶祥;;面向容災(zāi)的失效檢測(cè)技術(shù)探討[J];中國(guó)新技術(shù)新產(chǎn)品;2010年06期

2 ;[J];;年期

相關(guān)會(huì)議論文 前4條

1 董輝;楊金民;張大方;;拜占庭容錯(cuò)服務(wù)的適應(yīng)性失效檢測(cè)研究[A];2006年全國(guó)開(kāi)放式分布與并行計(jì)算學(xué)術(shù)會(huì)議論文集（一）[C];2006年

2 陳誠(chéng);陳海濤;;面向異地容災(zāi)系統(tǒng)的失效檢測(cè)算法研究[A];2007北京地區(qū)高校研究生學(xué)術(shù)交流會(huì)通信與信息技術(shù)會(huì)議論文集（上冊(cè)）[C];2008年

3 陳寧江;李昌武;俞閩敏;;一種融合負(fù)載感知和檢測(cè)點(diǎn)的Web服務(wù)適應(yīng)性失效檢測(cè)機(jī)制[A];2010年全國(guó)開(kāi)放式分布與并行計(jì)算機(jī)學(xué)術(shù)會(huì)議論文集[C];2010年

4 董輝;雷大軍;楊金民;;適應(yīng)性失效檢測(cè)器研究與設(shè)計(jì)[A];2007年全國(guó)開(kāi)放式分布與并行計(jì)算機(jī)學(xué)術(shù)會(huì)議論文集(上冊(cè))[C];2007年

相關(guān)博士學(xué)位論文 前2條

1 陳水耀;繼電保護(hù)失效檢測(cè)及檢修策略研究[D];華北電力大學(xué)(北京);2016年

2 葉海智;面向分布式關(guān)鍵任務(wù)系統(tǒng)的自律恢復(fù)機(jī)制研究[D];哈爾濱工程大學(xué);2010年

相關(guān)碩士學(xué)位論文 前10條

1 楊仕飛;基于灰色預(yù)測(cè)的失效檢測(cè)模型研究[D];鄭州大學(xué);2011年

2 陳文遠(yuǎn);累加型失效檢測(cè)模型研究[D];鄭州大學(xué);2012年

3 楊猛;混合結(jié)構(gòu)下的失效檢測(cè)系統(tǒng)研究與實(shí)現(xiàn)[D];南京航空航天大學(xué);2012年

4 景京;基于時(shí)間序列預(yù)測(cè)的自適應(yīng)失效檢測(cè)模型[D];鄭州大學(xué);2013年

5 侯W毶，

本文編號(hào)：1374119