【摘要】：大量分布式電源(distributed generation,DG)接入配電網(wǎng)導(dǎo)致系統(tǒng)元件數(shù)量的增加和系統(tǒng)狀態(tài)數(shù)目的增大,為停電風(fēng)險評估在含DG配電網(wǎng)中的實施帶來困難。為此,提出一種基于設(shè)備隨機故障的含DG配電網(wǎng)停電風(fēng)險快速評估方法。為加快評估速度,在系統(tǒng)狀態(tài)抽樣環(huán)節(jié)引入拉丁超立方抽樣技術(shù)(Latin hypercube sampling,LHS),通過對配電網(wǎng)各系統(tǒng)變量實施分區(qū)、抽樣、排序的方式得到用于停電風(fēng)險評估的系統(tǒng)狀態(tài);通過定義負(fù)荷點的貢獻(xiàn)度與消耗度2個孤島劃分參量,削弱了孤島劃分算法中負(fù)荷點接線結(jié)構(gòu)對算法快速性的影響,進(jìn)而提出了能同時滿足快速性和精確性要求的孤島劃分方法。從充裕性角度建立了配電網(wǎng)停電風(fēng)險的指標(biāo)體系,并制定了相應(yīng)的風(fēng)險評價標(biāo)準(zhǔn)。算例結(jié)果表明,提出的快速評估方法能反映含DG配電網(wǎng)的停電風(fēng)險程度,可為電網(wǎng)規(guī)劃及運行人員提供參考。
[Abstract]:A large number of distributed generation (distributed generation,DG) access to the distribution network leads to an increase in the number of system components and the number of system states, which makes it difficult to implement blackout risk assessment in distribution networks with DG. For this reason, a fast assessment method of power outage risk including DG distribution network based on random fault of equipment is proposed. In order to speed up the evaluation, the Latin hypercube sampling (Latin hypercube sampling,LHS) is introduced in the system state sampling, and the system state for the blackout risk assessment is obtained by dividing, sampling and sorting the system variables in the distribution network. By defining two islanding parameters, the contribution and consumption of load points, the influence of load point connection structure on the algorithm's rapidity is weakened. Furthermore, an island partition method is proposed, which can satisfy both the requirement of rapidity and accuracy. The index system of distribution network blackout risk is established from the point of view of adequacy, and the corresponding risk evaluation standard is established. The results show that the proposed method can reflect the blackout risk of DG distribution network and can be used as a reference for power network planning and operation.
【作者單位】： 輸配電裝備及系統(tǒng)安全與新技術(shù)國家重點實驗室(重慶大學(xué));
【基金】：國家重點基礎(chǔ)研究發(fā)展計劃(973計劃)(2012CB215205) 國家創(chuàng)新研究群體基金(51021005)~~
【分類號】：TM732

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 李銳;陳穎;梅生偉;沈沉;何飛;;基于停電風(fēng)險評估的城市配電網(wǎng)應(yīng)急預(yù)警方法[J];電力系統(tǒng)自動化;2010年16期

2 林偉芳;湯涌;孫華東;郭強;趙紅光;曾兵;;巴西“2·4”大停電事故及對電網(wǎng)安全穩(wěn)定運行的啟示[J];電力系統(tǒng)自動化;2011年09期

3 易新;陸于平;;分布式發(fā)電條件下的配電網(wǎng)孤島劃分算法[J];電網(wǎng)技術(shù);2006年07期

4 劉思革;范明天;張祖平;周孝信;;城市電網(wǎng)應(yīng)急能力評估技術(shù)指標(biāo)的研究[J];電網(wǎng)技術(shù);2007年22期

5 王新花;唐巍;;考慮元件可靠性參數(shù)修正的配電網(wǎng)可靠性研究[J];電網(wǎng)技術(shù);2008年19期

6 李蕊;李躍;蘇劍;卜憲德;侯義明;;配電網(wǎng)重要電力用戶停電損失及應(yīng)急策略[J];電網(wǎng)技術(shù);2011年10期

7 孟祥萍;片兆宇;張龍斌;苑全德;張紅;;基于母線間脆弱信息協(xié)調(diào)的配電網(wǎng)低電壓風(fēng)險評估[J];電網(wǎng)技術(shù);2012年07期

8 陳光;戴攀;周浩;孫可;沈揚;;計及入網(wǎng)電動汽車和分布式電源的配電系統(tǒng)重構(gòu)[J];電網(wǎng)技術(shù);2013年01期

9 向月;劉俊勇;姚良忠;劉友波;田立峰;楊嘉n\;;故障條件下含分布式電源配網(wǎng)的孤島劃分與重構(gòu)優(yōu)化策略研究[J];電網(wǎng)技術(shù);2013年04期

10 謝夏慧;汪l，

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