本文關(guān)鍵詞： 架空線路 故障概率 風(fēng)險(xiǎn)因素 可載性 應(yīng)急增容 工程應(yīng)用　出處：《浙江大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：架空輸電線路是電力系統(tǒng)中的重要生命線工程。評(píng)估復(fù)雜運(yùn)行環(huán)境下線路的故障趨勢(shì)和帶負(fù)荷能力的變化情況,聯(lián)動(dòng)分析故障概率及可載性,對(duì)于實(shí)現(xiàn)設(shè)備的精細(xì)化管理、支撐電網(wǎng)運(yùn)行分析決策、提高電網(wǎng)安全可靠水平意義重大。為此本文開展了以下研究:首先,根據(jù)架空線路故障產(chǎn)生的內(nèi)外部機(jī)理,提出了一種基于多時(shí)空狀態(tài)分析的架空線路綜合故障概率模型,介紹了建模的總體流程和模型架構(gòu)方式。綜合故障概率模型由一般狀態(tài)模型和災(zāi)變條件模型兩部分組成,根據(jù)引發(fā)停運(yùn)的風(fēng)險(xiǎn)因素惡劣程度的區(qū)別,選擇適配的模型差異化計(jì)算線路的故障概率。算例分析定量展現(xiàn)了不同應(yīng)用場景下線路故障概率的計(jì)算過程及各風(fēng)險(xiǎn)因素對(duì)故障概率的影響。其次,提出了一種考慮設(shè)備可載性的架空線路動(dòng)態(tài)增容方法,在應(yīng)急場景下,采用通道阻塞分析選取增容線路并分析增容線路在線溫、故障概率、失效貢獻(xiàn)、個(gè)體損失等約束下的設(shè)備可載性,結(jié)合微氣象信息針對(duì)不同線路差異化分析應(yīng)急增容方案。算例分析直觀展現(xiàn)了可載性約束下的線路應(yīng)急增容策略的計(jì)算分析過程及設(shè)備可載性對(duì)應(yīng)急增容策略的影響,以指導(dǎo)調(diào)度操作人員進(jìn)行設(shè)備的增容、限容操作。最后,在上述研究的基礎(chǔ)上,結(jié)合"貴陽地區(qū)電網(wǎng)多維度風(fēng)險(xiǎn)調(diào)度技術(shù)與應(yīng)急指揮策略研究"項(xiàng)目,介紹了架空線路綜合故障概率模型、可載性模型以及動(dòng)態(tài)應(yīng)急增容方法等研究成果的實(shí)際工程應(yīng)用情況。對(duì)系統(tǒng)模塊的硬件架構(gòu)、數(shù)據(jù)架構(gòu)、開發(fā)軟件配置、軟件架構(gòu)邏輯及系統(tǒng)的實(shí)際功能效果進(jìn)行了詳細(xì)的闡釋說明。研究成果將為實(shí)現(xiàn)大電網(wǎng)一體化智能調(diào)度提供理論指導(dǎo)和關(guān)鍵技術(shù)支撐,同時(shí)也是智能電網(wǎng)調(diào)度技術(shù)支持系統(tǒng)一個(gè)很好的補(bǔ)充。
[Abstract]:Overhead transmission line is an important lifeline project in power system. To evaluate the fault trend of line and the change of load capacity under complex operation environment, to analyze fault probability and loadability by linkage analysis, to realize the fine management of equipment. It is of great significance to support the power network operation analysis and decision-making and to improve the safety and reliability level of the power network. The following researches have been carried out in this paper: firstly, according to the internal and external mechanism of overhead line faults, An integrated fault probability model for overhead lines based on multi-space-time state analysis is proposed. The overall process and model architecture of the model are introduced. The integrated fault probability model consists of two parts: general state model and catastrophic condition model. Depending on the severity of the risk factors causing the outage, The fault probability of transmission line is calculated by using adaptive model. The calculation process of fault probability and the influence of various risk factors on fault probability under different application scenarios are presented quantitatively. Secondly, In this paper, a dynamic capacity increasing method for overhead lines considering equipment loadability is proposed. In the emergency scenario, the capacitive lines are selected by channel blocking analysis, and the on-line temperature, failure probability and failure contribution of capacitive lines are analyzed. Equipment loadability under individual loss and other constraints, According to the micrometeorological information, the emergency capacity increase scheme is analyzed according to the different line difference. The calculation and analysis process of the emergency capacity increase strategy under the constraint of load ability and the influence of the equipment loadability on the emergency capacity increase strategy are shown by the example analysis. Finally, on the basis of the above research, combined with the project of "Research on Multidimensional risk Dispatch Technology and Emergency Command Strategy in Guiyang Power Network", This paper introduces the practical engineering application of the integrated fault probability model, the loadability model and the dynamic emergency capacity increasing method of overhead line. The hardware structure, data structure, development software configuration of the system module are introduced. The software architecture logic and the actual function effect of the system are explained in detail. The research results will provide theoretical guidance and key technical support for the realization of integrated intelligent dispatching of large power grid. At the same time, it is also a good supplement to the smart grid dispatching technology support system.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM75

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 譚波;;架空線路隱患整改新方案的探討[J];科技創(chuàng)新與應(yīng)用;2014年19期

2 孫小燕,帥建強(qiáng);架空線路排桿定位軟件的開發(fā)與應(yīng)用[J];農(nóng)村電氣化;2000年06期

3 尚麗;供水企業(yè)架空線路的安全運(yùn)行探析[J];甘肅科技;2002年10期

4 王永晨;架空線路非正常帶電的原因分析[J];農(nóng)村電氣化;2002年03期

5 沈閱,程浩忠,崔e，

本文編號(hào)：1533894