本文選題：TCSC + 可靠性框圖��； 參考：《重慶大學(xué)》2014年碩士論文

【摘要】：本文依托國(guó)家自然科學(xué)基金資助項(xiàng)目“柔性發(fā)輸電系統(tǒng)概率風(fēng)險(xiǎn)評(píng)估和優(yōu)化配置模型研究”(項(xiàng)目號(hào)：50977094)和重慶市科委自然科學(xué)基金資助項(xiàng)目“計(jì)及柔性發(fā)輸電設(shè)備的電網(wǎng)可靠性評(píng)估模型研究”(項(xiàng)目號(hào)：CSTC,2011BB6047）進(jìn)行研究工作。 運(yùn)行風(fēng)險(xiǎn)評(píng)估是一個(gè)短期可靠性評(píng)估過(guò)程，由于其評(píng)估周期較短，元件所處的外界環(huán)境和運(yùn)行條件變化將影響元件可靠性水平，采用傳統(tǒng)可靠性評(píng)估中的統(tǒng)計(jì)平均參數(shù)值不能準(zhǔn)確評(píng)估時(shí)變運(yùn)行條件下的系統(tǒng)運(yùn)行風(fēng)險(xiǎn)。因此，在進(jìn)行電網(wǎng)運(yùn)行風(fēng)險(xiǎn)評(píng)估時(shí)有必要正確處理實(shí)時(shí)條件與元件運(yùn)行可靠性的關(guān)系，即實(shí)時(shí)條件下的元件運(yùn)行可靠性的建模�？煽卮�(lián)電容補(bǔ)償（TCSC）通過(guò)輸電網(wǎng)絡(luò)參數(shù)調(diào)節(jié)實(shí)現(xiàn)潮流控制，能夠改變電網(wǎng)運(yùn)行條件，對(duì)系統(tǒng)中其他電力元件以及自身可靠性產(chǎn)生影響，因此，對(duì)TCSC運(yùn)行可靠性模型展開(kāi)研究，有利于分析TCSC對(duì)電網(wǎng)運(yùn)行風(fēng)險(xiǎn)的影響。 電網(wǎng)運(yùn)行風(fēng)險(xiǎn)評(píng)估是基于一定的調(diào)度運(yùn)行方式進(jìn)行的，然而調(diào)度運(yùn)行方式的變化將對(duì)電網(wǎng)運(yùn)行可靠性產(chǎn)生影響，同時(shí)，在制定發(fā)電調(diào)度方案時(shí)，不能忽略電網(wǎng)運(yùn)行風(fēng)險(xiǎn)引起的經(jīng)濟(jì)代價(jià)，即發(fā)電調(diào)度優(yōu)化和運(yùn)行風(fēng)險(xiǎn)評(píng)估時(shí)一個(gè)相互制約的過(guò)程，調(diào)度運(yùn)行方式?jīng)Q定系統(tǒng)風(fēng)險(xiǎn)水平，運(yùn)行風(fēng)險(xiǎn)指標(biāo)指導(dǎo)發(fā)電調(diào)度決策。正確處理二者的關(guān)系，計(jì)及運(yùn)行風(fēng)險(xiǎn)的發(fā)電優(yōu)化調(diào)度是一個(gè)亟需深入研究的重要課題。 因此，本文基于運(yùn)行風(fēng)險(xiǎn)理論，對(duì)TCSC運(yùn)行可靠性模型展開(kāi)研究，構(gòu)建了含TCSC電網(wǎng)的運(yùn)行風(fēng)險(xiǎn)評(píng)估模型，探索了負(fù)荷隨機(jī)波動(dòng)、元件老化、氣溫變化以及TCSC對(duì)系統(tǒng)運(yùn)行可靠性的影響。將電網(wǎng)運(yùn)行風(fēng)險(xiǎn)理論和優(yōu)化調(diào)度理論相結(jié)合，構(gòu)建了基于條件相關(guān)運(yùn)行風(fēng)險(xiǎn)的發(fā)電優(yōu)化調(diào)度模型，實(shí)現(xiàn)了電網(wǎng)運(yùn)行風(fēng)險(xiǎn)和調(diào)度方式之間的協(xié)調(diào)控制。本文的主要工作內(nèi)容如下： ①對(duì)TCSC結(jié)構(gòu)和故障模式進(jìn)行分析，構(gòu)建了TCSC及其子模塊的可靠性框圖，計(jì)及部件冗余配置討論了TCSC子模塊以及其內(nèi)部部件的可靠性。 ②深入分析了TCSC的電抗隨電流而變化的運(yùn)行特性，基于此提出了一種計(jì)及TCSC視在電抗約束的線路可靠性模型。針對(duì)實(shí)時(shí)運(yùn)行條件下故障率參數(shù)的時(shí)變特性，應(yīng)用馬爾可夫理論推導(dǎo)了TCSC核心部件以及整個(gè)線路的狀態(tài)概率計(jì)算公式，并基于運(yùn)行風(fēng)險(xiǎn)理論建立了條件相關(guān)的故障率模型。該模型定量考慮了負(fù)荷隨機(jī)波動(dòng)、元件老化以及氣溫變化對(duì)元件可靠性的影響。 ③綜合考慮實(shí)時(shí)運(yùn)行條件對(duì)元件和電網(wǎng)運(yùn)行可靠性的影響，構(gòu)建了基于條件相關(guān)運(yùn)行風(fēng)險(xiǎn)的發(fā)電優(yōu)化調(diào)度模型。將條件相關(guān)的運(yùn)行風(fēng)險(xiǎn)評(píng)估與發(fā)電調(diào)度優(yōu)化相結(jié)合，采用統(tǒng)一的貨幣形式量化發(fā)電機(jī)調(diào)度成本和風(fēng)險(xiǎn)代價(jià)，以期望總成本最小為目標(biāo)函數(shù)，在滿足正常和故障狀態(tài)對(duì)應(yīng)安全約束條件下尋求最優(yōu)調(diào)度方案。同時(shí)，計(jì)及了旋轉(zhuǎn)備用響應(yīng)特性以及TCSC對(duì)電網(wǎng)運(yùn)行風(fēng)險(xiǎn)的影響，，將機(jī)組輸出功率再調(diào)整允許范圍和TCSC補(bǔ)償范圍增至約束集中。該模型綜合考慮了負(fù)荷水平、實(shí)時(shí)調(diào)度運(yùn)行方式、潮流分布和運(yùn)行風(fēng)險(xiǎn)的相互影響，實(shí)現(xiàn)了電網(wǎng)運(yùn)行風(fēng)險(xiǎn)和發(fā)電成本均衡協(xié)調(diào)的最優(yōu)調(diào)度決策。 ④采用Matlab對(duì)RBTS可靠性測(cè)試系統(tǒng)進(jìn)行計(jì)算分析，驗(yàn)證了本文所提模型的有效性和正確性。計(jì)算了不同負(fù)荷水平、元件等效服役時(shí)間以及氣候條件下的電網(wǎng)運(yùn)行風(fēng)險(xiǎn)指標(biāo)，并詳細(xì)分析了TCSC對(duì)系統(tǒng)運(yùn)行可靠性的影響。采用遺傳禁忌混合算法得到了不同調(diào)度時(shí)刻不同運(yùn)行條件下的最優(yōu)調(diào)度運(yùn)行方案以及該時(shí)刻下的運(yùn)行風(fēng)險(xiǎn)指標(biāo)。
[Abstract]:This paper is based on the research work of project No . 50977094 and the Research on Reliability Assessment Model of Flexible Transmission Equipment ( Project No . : CSTC , 2011BB6047 ) funded by the National Natural Science Foundation Grant Project " Flexible Transmission and Transmission System Probabilistic Risk Assessment and Optimization Configuration Model Research " ( Project No . 50977094 ) and Chongqing Science and Commission Natural Science Foundation Grant Project .

The operation risk assessment is a short - term reliability evaluation process , because the evaluation period is short , the external environment and operating condition change of the element will affect the reliability level of the element . Therefore , it is necessary to deal with the relationship between the real - time condition and the operation reliability of the element in real time by adopting the statistical average parameter value in the traditional reliability evaluation .

The operation risk assessment of power grid is based on a certain scheduling operation mode , however , the change of scheduling operation mode will affect the operation reliability of the power grid . At the same time , when the power generation scheduling scheme is developed , the economic cost caused by the operation risk of the power grid cannot be neglected , that is , the power generation scheduling optimization and the operation risk evaluation are mutually restricted , the operation mode decides the system risk level , and the operation risk index is used to guide the power generation dispatching decision .

Therefore , based on the operational risk theory , this paper studies the operation reliability model of TCSC , constructs a model of operation risk assessment of TCSC power grid , and explores the influence of load stochastic fluctuation , element aging , temperature change and TCSC on system operation reliability .

The reliability of TCSC and its sub - modules is discussed , and the reliability of TCSC sub - module and its internal components is discussed .

In this paper , the operating characteristics of TCSC are analyzed in detail . Based on this , a line reliability model of TCSC is presented . Based on the time - varying characteristics of failure rate parameters under real - time operating conditions , the state probability formula of TCSC core components and the whole line is deduced by using Markov theory . The fault rate model is established based on the theory of operational risk .

( 3 ) Considering the influence of real - time operating conditions on the operation reliability of the element and power grid , a power generation optimization scheduling model based on the condition - related operation risk is constructed .

In this paper , the reliability test system of RBTS is calculated and analyzed by Matlab . The validity and validity of the proposed model are verified . The influence of different load level , component equivalent service time and grid operation risk under climate conditions is calculated , and the influence of TCSC on the running reliability of the system is analyzed in detail .
【學(xué)位授予單位】：重慶大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM73

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 王身麗;;架空輸電線路載流量計(jì)算方法比較[J];電力學(xué)報(bào);2011年05期

2 田秋松;張健毅;劉濤;李春陽(yáng);;大型串聯(lián)電容器組在特高壓固定串補(bǔ)中的應(yīng)用[J];電力電容器與無(wú)功補(bǔ)償;2012年03期

3 王仲鴻,沈斐,吳鐵錚;FACTS技術(shù)研究現(xiàn)狀及其在中國(guó)的應(yīng)用與發(fā)展[J];電力系統(tǒng)自動(dòng)化;2000年23期

4 劉海濤;程林;孫元章;王鵬;;基于實(shí)時(shí)運(yùn)行條件的元件停運(yùn)因素分析與停運(yùn)率建模[J];電力系統(tǒng)自動(dòng)化;2007年07期

5 孫元章;劉海濤;程林;王鵬;;運(yùn)行可靠性在線短期評(píng)估方案[J];電力系統(tǒng)自動(dòng)化;2008年03期

6 王成亮;趙淵;周家啟;劉威;韓松柏;;基于日發(fā)電計(jì)劃的電力系統(tǒng)運(yùn)行風(fēng)險(xiǎn)概率評(píng)估[J];電力系統(tǒng)自動(dòng)化;2008年04期

7 孫榮富;程林;孫元章;;基于惡劣氣候條件的停運(yùn)率建模及電網(wǎng)充裕度評(píng)估[J];電力系統(tǒng)自動(dòng)化;2009年13期

8 李彩華,郭志忠,樊愛(ài)軍;電力系統(tǒng)優(yōu)化調(diào)度概述(I)——經(jīng)濟(jì)調(diào)度與最優(yōu)潮流[J];電力系統(tǒng)及其自動(dòng)化學(xué)報(bào);2002年02期

9 王樹(shù)文;紀(jì)延超;馬文川;;靈活交流輸電技術(shù)[J];電力系統(tǒng)及其自動(dòng)化學(xué)報(bào);2007年03期

10 王永紅;孟榮;王s

本文編號(hào)：1995290