電力系統(tǒng)擴展頻率響應模型及綜合程序研發(fā)
[Abstract]:In recent years, the frequency crashes caused by the large frequency shift of the power system and the large blackout at home and abroad are increasing. With the large-scale renewable energy access to the power system, the frequency offset of the power system will become greater when the power system is connected to the power system, and the frequency offset is beyond the power system permission. In the range, the probability of the cascading failure of the power system is greatly increased because of the frequency offset, and the frequency collapse may even occur in serious cases. Most of the researches on the frequency are based on the frequency response curve, and the full time domain simulation model and the simplified frequency response model are the most effective ways to obtain the frequency response of the power system. But the simplified model does not take into account the interaction between the frequency and the dynamic characteristics of the boiler / auxiliary equipment. Because there are a large number of auxiliary equipment in the thermal power plant, its output is closely related to the frequency, and the output of the auxiliary machine will affect the generator's output. Therefore, the power system is better described in a large frequency range migration. The frequency response characteristic of the system needs to set up a frequency response expansion model considering the effect of frequency offset on the boiler / auxiliary engine. With the continuous expansion of the system scale, the time required for the whole time domain is gradually unable to meet the demand for rapid solution. Therefore, it is necessary to ensure that the model can be fast through the simplified model in the range of the acceptable precision. The frequency response curve of the power system is solved. The full time domain simulation has been widely used in many commercial software, but there is still a lack of the software package for the simplified model frequency response calculation. Therefore, the development of a comprehensive software package for the frequency response calculation of the power system is very important for the study of the safety and stability of frequency and the emergency control. The main contents of this paper are as follows: firstly, based on the characteristics and dynamic behavior of the boiler, steam turbine speed control system, generator rotor equation and power plant auxiliary machine (feed water pump), a frequency response extended mode considering the effect of frequency offset on boiler / auxiliary engine is established. The model takes into account the boiler drum pressure and the main steam pressure. The control system, the coordination control system of the "furnace heel machine" and the regulation process of the main steam flow and feed water flow rate of the feed pump. This paper studies the corresponding relation of the parameters in the model. By analyzing the actual running data and fitting the data, the mathematical connection between the parameters in the extended model is established. Secondly, the extended mode of the system frequency response is studied. The influence of the type on the frequency stability of the system. Through the expansion model, the frequency stability of the system is analyzed in the case of the influence of frequency on the auxiliary engine (feed water pump). In the extended model, the water flow is the main control quantity, the input of the boiler fuel is controlled by the effect of frequency on the water flow, and then the output of the generator is controlled indirectly. The purpose of power is to describe the frequency characteristics of the system when a large frequency shift occurs in a power system. Then, in order to further analyze the static characteristics of the system frequency, the frequency response expansion model described above is the research object. By applying the fixed load sudden increase disturbance, the next power frequency operation point is simulated and repeated. The above steps finally get the static power frequency characteristic curve of the generator set in a larger frequency range. Based on the static power frequency curve obtained, the static stable operation region and the stable region boundary are put forward, and the static stability analysis and transient stability analysis are carried out, and the "frequency instability" leveling is further discovered and proposed. In the end, full time domain simulation has more mature commercial software and has been widely used. However, there is still a lack of software support for frequency response computing packages based on simplified methods. Developing a software package that covers these simplified models can greatly increase the systematicness and flexibility of frequency dynamic analysis. The software package program uses the common advanced language (Python) and compiler, the program structure has the modular structure. The application of the program application interface can better reflect the features of the programmability and openness of the software package. The program application interface can not only realize the basic program function, but also realize the more complex advanced application. The application of the program application interface is realized. Functional and advanced applications include frequency response calculation, low frequency load shedding, frequency safety assessment and critical load shedding.
【學位授予單位】:山東大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TM712;TP311.52
【相似文獻】
相關期刊論文 前10條
1 熊建國;;《動載設計:模型分析的應用》[J];世界地震工程;1984年04期
2 M.S.Troitsky ,B.E.Lazar ,戴振藩;斜拉橋的模型分析與設計[J];國外橋梁;1979年03期
3 盧正安;;積寬法測流模型分析[J];人民長江;1982年05期
4 羅榮桂;沈軍;;企業(yè)間的商戰(zhàn)模型分析[J];武漢理工大學學報;2006年12期
5 J.G.厄普頓;李振平;;聚落模型的距離與方向分析[J];地理譯報;1988年03期
6 寇小萱;王彥越;董明;;企業(yè)資源系統(tǒng)的序化管理模型分析[J];科技與管理;2006年02期
7 馬斌;張富饒;;廣東城鄉(xiāng)收入差距的一個模型分析[J];徐州工程學院學報;2008年03期
8 E.A.霍澤費爾;張玉英;;地面灌溉優(yōu)化模型[J];河海大學科技情報;1987年03期
9 凌靜;高鎮(zhèn)同;;二維應力——強度干涉模型[J];機械強度;1989年04期
10 周康渠;翁昵;王炳杰;姚長鑫;;某汽車企業(yè)零部件采購量價模型分析[J];重慶理工大學學報(自然科學版);2010年05期
相關會議論文 前10條
1 錢林曉;王一濤;;對應試教育條件下學生學習行為的模型分析[A];2005年中國教育經濟學年會會議論文集[C];2005年
2 高林;劉喜梅;;多模型中權值確定的新方法及其應用[A];2009年中國智能自動化會議論文集(第二分冊)[C];2009年
3 朱萍;劉偉澤;萬立濱;;基于實證研究的知識管理路線、方法和模型分析[A];航空工業(yè)檔案學會七屆四次理事會暨2013年度優(yōu)秀論文交流會論文集[C];2013年
4 潘潔;周宗放;;全流通下KMV模型中的違約點修正及實證研究[A];中國企業(yè)運籌學[C];2009年
5 肖田元;;仿真是基于模型的活動[A];新觀點新學說學術沙龍文集37:仿真是基于模型的實驗嗎[C];2009年
6 毛曹玨;曹銳;;兩種缺陷接地結構的模型分析[A];2007年全國微波毫米波會議論文集(下冊)[C];2007年
7 吳義忠;陳立平;張昌杰;;基于多領域模型分析的參數(shù)優(yōu)化研究[A];慶祝中國力學學會成立50周年暨中國力學學會學術大會’2007論文摘要集(下)[C];2007年
8 董維中;;氣體模型對鈍體高超聲速流動數(shù)值計算影響的分析[A];第十屆全國計算流體力學會議論文集[C];2000年
9 侯建榮;黃培清;;基于Ito隨機微分方程的客戶群變動模型分析[A];2004年中國管理科學學術會議論文集[C];2004年
10 肖婷婷;;經典的逃稅模型及其兩周期擴展[A];第四屆中國不確定系統(tǒng)年會論文集[C];2006年
相關重要報紙文章 前3條
1 范超;淺談如何備戰(zhàn)統(tǒng)計建模大賽[N];中國信息報;2011年
2 媛萍;用模型分析企業(yè)戰(zhàn)略要素[N];中國高新技術產業(yè)導報;2002年
3 牛津大學博士 阿姆斯(RMS)風險管理公司亞太地區(qū)代表 高航;由近期亞太地區(qū)地震看巨災風險[N];中國保險報;2012年
相關博士學位論文 前10條
1 李瑜;多選題認知診斷測驗編制及多策略的多選題認知診斷模型的開發(fā)[D];江西師范大學;2014年
2 康慧燕;復雜網絡上帶有潛伏期的傳染病動力學模型研究[D];上海大學;2015年
3 郭瑋;基于多因素集成的疏散場模型研究[D];北京化工大學;2015年
4 張?zhí)祢?產漂流性卵小型魚類的生態(tài)位建模及分析[D];中國農業(yè)大學;2016年
5 張會敏;基于小域估計的貧困指標測度方法與模型研究[D];天津財經大學;2015年
6 宋澤芳;基于投資者情緒效應的均值—方差關系模型研究[D];廣州大學;2016年
7 徐帆;籠養(yǎng)食蟹猴自發(fā)抑郁模型的創(chuàng)建與驗證[D];重慶醫(yī)科大學;2015年
8 畢仁貴;考慮相關性的不確定凸集模型與非概率可靠性分析方法[D];湖南大學;2015年
9 盧偉;小時步長森林碳循環(huán)模型(BEPS)參數(shù)優(yōu)化及應用研究[D];東北林業(yè)大學;2016年
10 周作建;移動云環(huán)境下服務推薦模型及關鍵技術研究[D];南京大學;2016年
相關碩士學位論文 前10條
1 朱嘉蕊;基于科技接受模型的云出版服務模式研究[D];武漢理工大學;2014年
2 李昂;BIM技術在工程建設項目中模型創(chuàng)建和碰撞檢測的應用研究[D];東北林業(yè)大學;2015年
3 顧慧燕;預測有機碳-水分配系數(shù)pp-LFERs模型的改進研究[D];中國地質大學(北京);2015年
4 馬豪;衛(wèi)生管理決策支持系統(tǒng)的模型構建研究[D];北京協(xié)和醫(yī)學院;2015年
5 王海波;基于GARCH模型的滬深300指數(shù)收益率的波動性研究[D];西安建筑科技大學;2015年
6 郭濱;基于Kriging與改進灰色組合模型的邊坡變形分析研究[D];江西理工大學;2015年
7 邢立雯;CEV模型最優(yōu)參數(shù)的實證研究[D];山東大學;2015年
8 王澤森;基于Ⅳ級動態(tài)逸度模型京津冀地區(qū)硫的多介質遷移轉化[D];華北電力大學;2015年
9 李歡;大規(guī)模網絡零模型的高效量化評估策略研究[D];北京化工大學;2015年
10 薛文旅;小學數(shù)學《方程》單元教學中滲透模型思想的研究[D];南京師范大學;2015年
,本文編號:2125269
本文鏈接:http://sikaile.net/kejilunwen/dianlidianqilunwen/2125269.html