中壓配電網(wǎng)典型接線模式可靠性影響因素分析
陶葉煒1,李斌2,李冬1,惠錦1,董曉峰1
(1 國網(wǎng)江蘇省電力公司蘇州供電公司,江蘇 蘇州 215004;2 華北電力大學 電氣與電子工程學院,北京 102206)
摘 要:介紹了國內(nèi)中壓配電網(wǎng)的架空線典型接線模式和電纜線典型接線模式,以蘇州某地的系統(tǒng)參數(shù)為例,利用DIgsilent/Powerfactory 軟件計算各典型接線的供電可靠性指標,平均供電可靠率(ASAI)和系統(tǒng)年平均缺供電量(ENS-LP)兩大系統(tǒng)指標作為供電可靠性分析的指標依據(jù),分析了線路分段情況、負荷均衡度、負荷密度及配電自動化等對中壓配電網(wǎng)的7 種典型接線模式供電可靠性的影響,分析結(jié)果可為相關(guān)行業(yè)人員提供參考。
關(guān)鍵詞:中壓配電網(wǎng);典型接線模式;可靠性分析
中圖分類號:TM732 文獻標識碼:A 文章編號:1007-3175(2017)07-0042-06
Analysis of Influencing Factors on Reliability of Typical Connection
Mode in Medium Voltage Distribution Network
TAO Ye-wei1, LI Bin2, LI Dong1, HUI Jin1, DONG Xiao-feng1
(1 National Grid Jiangsu Power Company Suzhou Power Supply Bureau, Suzhou 215004, China;
2 School of Electrical & Electronic Engineering, North China Electric Power University, Beijing 102206, China)
Abstract: Introduction was made to the typical connection modes including overhead line and cable line of domestic medium voltage distribution network. Taking the system parameters of somewhere of Suzhou as an example, this paper used the software DIgsilent/Powerfactory to calculate the power distribution reliability index of various typical connections. The average service availability index (ASAI) and the system ENS-LP were taken as the indexes basis of power distribution reliability to analyze the influence of line segment, load balance, load density and distribution automation on power supply reliability of 7 kinds of typical connection modes in medium voltage distribution network. The analysis result provides references for the related industry personnel.
Key words: medium voltage distribution network; typical connection mode; reliability analysis
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