Suzhou Electric Appliance Research Institute
期刊號: CN32-1800/TM| ISSN1007-3175

Article retrieval

文章檢索

首頁 >> 文章檢索 >> 文章瀏覽排名

孤網(wǎng)電力負(fù)荷平衡技術(shù)及應(yīng)用

來源:電工電氣發(fā)布時間:2017-11-17 09:17 瀏覽次數(shù):8
孤網(wǎng)電力負(fù)荷平衡技術(shù)及應(yīng)用
 
趙中原,李曉明, 李成博,王新寶
(南京南瑞繼保電氣有限公司, 江蘇 南京 211102)
 
    摘 要:企業(yè)自備電廠在外網(wǎng)聯(lián)接或者孤網(wǎng)運(yùn)行時,存在電壓穩(wěn)定、頻率平衡問題。提出基于晶閘管的快速、靈活控制的電子負(fù)荷技術(shù),通過三層策略控制來解決孤網(wǎng)平衡問題。該方案以電子動態(tài)負(fù)荷調(diào)節(jié)為平衡主要手段,同時配置孤網(wǎng)穩(wěn)定裝置,協(xié)調(diào)發(fā)電機(jī)組和負(fù)荷數(shù)量,另外還配置了頻率緊急控制作為最后防線。應(yīng)用效果表明,電子負(fù)荷快速平滑跟蹤沖擊性負(fù)荷動態(tài)變化,可以使孤網(wǎng)高可靠性運(yùn)行、頻率穩(wěn)定。
    關(guān)鍵詞:孤網(wǎng);電子負(fù)荷;電網(wǎng)穩(wěn)定
    中圖分類號:TM762     文獻(xiàn)標(biāo)識碼:B     文章編號:1007-3175(2017)11-0033-05
 
Power Load Balancing Technique and Application of Islanded Network
 
ZHAO Zhong-yuan, LI Xiao-ming, LI Cheng-bo, WANG Xin-bao
(Nari-Relays Electric Co., Ltd, Nanjing 2111 02, China)
 
    Abstract: Enterprise-owned power plants usually get voltage stability and frequency balance problem when accessing the external network or operating in an islanded mode. This paper proposed a thyristor-based electronic type of load with fast and flexible controllable features. Three-layer control strategy as a total solution was presented to effectively solve the problem of islanded network. The main balancing means of this strategy is to adjust electronic dynamic load, to configure islanded network stable device, to coordinate generator sets and load quantity and to configure frequency emergency control as the last defensive line. The application result shows that the electronic type of load is a fast and smooth way to balance the dynamic change of the impact load, which can make the isolated network operate in high reliability and get frequency in stable range.
    Key words: islanded network; electronic load; power grid stability
 
參考文獻(xiàn)
[1] 張培高,李興源,李政. 孤網(wǎng)頻率穩(wěn)定與控制策略研究[J]. 繼電器,2012,40(15):143-149.
[2] 張健銘,畢天姝,劉輝,薛安成. 孤網(wǎng)運(yùn)行與頻率穩(wěn)定研究綜述[J]. 電力系統(tǒng)保護(hù)與控制,2011,39(11):149-154.
[3] 王君,王曉茹,謝大鵬,陳義宣. 孤島系統(tǒng)的低頻減載方案研究[J]. 電力系統(tǒng)保護(hù)與控制,2010,38(3):29-33.
[4] 李俊. 火電廠單機(jī)帶孤網(wǎng)運(yùn)行控制策略[J]. 中國電力,2008,41(11):51-54.
[5] 王新寶,韓禎祥. 計(jì)及感應(yīng)電動機(jī)靜態(tài)特性的PV曲線分析[J]. 電力系統(tǒng)自動化,2004,28(2):32-36.
[6] 彭卉,鄒舒,付永生,燕翚,賀春. 沖擊負(fù)荷接入電網(wǎng)的電能質(zhì)量分析與治理方案研究[J]. 電力系統(tǒng)保護(hù)與控制,2014,42(1):54-61.
[7] 顧丹,珍艾芊,陳陳,顧文. 沖擊負(fù)荷實(shí)用建模新方法[J]. 電力系統(tǒng)自動化,2006,30(20):10-14.
[8] 岑海鳳,王西田,劉麗霞,羅敏,艾芊. 大容量沖擊負(fù)荷對鄰近發(fā)電機(jī)組影響的評估[J]. 中國電力,2010,43(1):10-14.
[9] 王建學(xué),高衛(wèi)恒,別朝紅. 沖擊負(fù)荷對電力系統(tǒng)可靠性影響的分析[J]. 中國電機(jī)工程學(xué)報(bào),2011,31(10):59-65.
[10] 郭曉亮,馬利雙. 大容量沖擊負(fù)荷對發(fā)電機(jī)組的影響[J]. 機(jī)電信息,2010,30(2):121-123.