電力系統(tǒng)網(wǎng)架重構(gòu)的變時(shí)段建模和協(xié)調(diào)優(yōu)化研究
[Abstract]:In recent years, the trend of large-scale interconnection of power systems has become increasingly evident, and the complexity of power systems is also increasing. It not only increases the probability of fault occurrence, but also extends the scope of impact, even triggers a vicious chain reaction, resulting in large-scale blackouts. In this context, as one of the important measures of power system security defense, reliable system restoration scheme is of great significance for reducing the burden of restoration control, speeding up the system recovery and reducing the economic loss and social impact caused by blackouts. Based on the comprehensive study and reference of the existing research work, this paper focuses on the grid reconfiguration optimization technology in the process of power system restoration. The main work of this paper includes the following aspects: (1) dynamic evaluation and sequencing optimization of unit startup performance. Efficiency will gradually decay, directly affecting the start-up time and grid-connected speed of generating units. This paper analyzes the influence of this situation on the start-up sequence of generating units in various periods, evaluates the temperature decline trend of the thermodynamic system of the key equipment in the power plant, adopts fuzzy theory to deal with each state of the generating unit, determines the loss index of starting efficiency of each unit, and establishes the generating unit. Start-up dynamic optimization model and apply multi-population genetic algorithm to solve the problem. Focus on the analysis of the impact of different restoration sequence on the length of each period and the overall recovery process. (2) Variable-time modeling and solution method for grid reconfiguration. In order to improve the efficiency of the solution, a variable-time modeling framework for grid reconfiguration is proposed based on the fuzzy evaluation of the recovery time of each time interval and the serial-parallel mechanism of the recovery process. It overcomes the disadvantage that time-division decision is easy to fall into local optimum and provides a way to seek global optimum. (3) Coordinated optimization of grid reconstruction and load recovery. The coordinated optimization model of grid reconfiguration and load recovery is established. The non-dominated solution set of grid reconfiguration schemes is solved and the optimal solution is screened by multi-attribute decision making method. It is necessary to restore a certain amount of load in a planned way, especially in the relatively weak period of the system. It is also an important guarantee for the smooth progress of the subsequent restoration work. (4) Optimizing the transition recovery scheme considering resource constraints. In the case of constraints, an optimization method for alternative schemes of constrained power supply considering resource constraints is proposed. The non-constrained units with short starting distance and good performance can be used to realize grid-connected power generation in the shortest time to replace the constrained power supply for subsequent restoration. The model is optimized by the corresponding algorithm. The application of unconstrained units instead of constrained power supply for subsequent restoration can provide more lasting power generation support for the grid and ensure the smooth implementation of subsequent restoration schemes.
【學(xué)位授予單位】:華北電力大學(xué)(北京)
【學(xué)位級別】:博士
【學(xué)位授予年份】:2017
【分類號】:TM732
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 劉力卿;杜平;萬玉良;米增強(qiáng);袁賀;;儲(chǔ)能型風(fēng)電場作為局域電網(wǎng)黑啟動(dòng)電源的可行性探討[J];電力系統(tǒng)自動(dòng)化;2016年21期
2 陳彬;王洪濤;曹曦;;計(jì)及負(fù)荷模糊不確定性的網(wǎng)架重構(gòu)后期負(fù)荷恢復(fù)優(yōu)化[J];電力系統(tǒng)自動(dòng)化;2016年20期
3 吳迪;;220kV智能變電站直流電源系統(tǒng)配置方案[J];河南科技;2016年15期
4 顧雪平;董金哲;李少巖;;網(wǎng)架重構(gòu)過程中線路潮流越限消除的網(wǎng)絡(luò)調(diào)整策略[J];電力系統(tǒng)自動(dòng)化;2016年07期
5 趙曉偉;謝歡;呂思昕;劉觀起;吳濤;蘇為民;史揚(yáng);楊寶新;李文鋒;;電力系統(tǒng)穩(wěn)定器PSS4B的參數(shù)整定及現(xiàn)場試驗(yàn)[J];電網(wǎng)技術(shù);2016年02期
6 劉艷;張華;;基于失電風(fēng)險(xiǎn)最小的機(jī)組恢復(fù)順序優(yōu)化方法[J];電力系統(tǒng)自動(dòng)化;2015年14期
7 張雪麗;梁海平;朱濤;趙川;李文云;顧雪平;;基于模糊機(jī)會(huì)約束規(guī)劃的電力系統(tǒng)網(wǎng)架重構(gòu)優(yōu)化[J];電力系統(tǒng)自動(dòng)化;2015年14期
8 周華東;張東澤;龔輝;衛(wèi)健;呂林;;變電站蓄電池充放電過程分析與建模[J];電源技術(shù);2015年03期
9 孫璞玉;張焰;羅雯清;;考慮網(wǎng)架覆蓋率與分散度的網(wǎng)架重構(gòu)優(yōu)化[J];電網(wǎng)技術(shù);2015年01期
10 黎嘉明;李大虎;孫建波;侯云鶴;文勁宇;;結(jié)合狀態(tài)削減技術(shù)的電力系統(tǒng)黑啟動(dòng)動(dòng)態(tài)規(guī)劃算法[J];中國電機(jī)工程學(xué)報(bào);2014年25期
相關(guān)博士學(xué)位論文 前6條
1 盧恩;基于大型火電機(jī)組FCB技術(shù)的電力系統(tǒng)智能恢復(fù)控制研究與應(yīng)用[D];華南理工大學(xué);2014年
2 鐘慧榮;電力系統(tǒng)黑啟動(dòng)與網(wǎng)架重構(gòu)優(yōu)化技術(shù)研究[D];華北電力大學(xué);2012年
3 瞿寒冰;大停電后的負(fù)荷恢復(fù)研究[D];山東大學(xué);2012年
4 楊麗君;電力系統(tǒng)大停電后恢復(fù)算法研究[D];燕山大學(xué);2010年
5 劉強(qiáng);電力系統(tǒng)恢復(fù)控制的協(xié)調(diào)優(yōu)化策略研究[D];華北電力大學(xué)(河北);2009年
6 劉艷;電力系統(tǒng)黑啟動(dòng)恢復(fù)及其決策支持技術(shù)的研究[D];華北電力大學(xué)(河北);2007年
相關(guān)碩士學(xué)位論文 前10條
1 門冉;火電機(jī)組FCB功能及其在電網(wǎng)黑啟動(dòng)中的應(yīng)用[D];東南大學(xué);2015年
2 莫靖;變電站直流系統(tǒng)存在問題研究及其對策[D];華南理工大學(xué);2013年
3 胡科華;變電站智能蓄電池組監(jiān)測系統(tǒng)設(shè)計(jì)與實(shí)現(xiàn)[D];電子科技大學(xué);2013年
4 羅延榕;多種群遺傳算法及其在復(fù)雜網(wǎng)絡(luò)社區(qū)劃分中的應(yīng)用研究[D];江西理工大學(xué);2012年
5 江亞婧;變電站智能化管理模式的研究[D];華北電力大學(xué);2012年
6 張家坤;抽水蓄能電站黑啟動(dòng)應(yīng)用研究[D];華北電力大學(xué)(北京);2010年
7 王梅冬;一種基于種群簇的多種群遺傳算法[D];大連理工大學(xué);2009年
8 周鈺;基于可介入式勵(lì)磁控制的低頻振蕩抑制研究[D];華中科技大學(xué);2009年
9 傅磊;基于抽水蓄能電站的電網(wǎng)黑啟動(dòng)試驗(yàn)研究[D];山東大學(xué);2008年
10 張小易;電力系統(tǒng)黑啟動(dòng)過程中過電壓問題的研究[D];華北電力大學(xué)(河北);2004年
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