中压配电网典型接线模式可靠性影响因素分析
陶叶炜1,李斌2,李冬1,惠锦1,董晓峰1
(1 国网江苏省电力公司苏州供电公司,江苏 苏州 215004;2 华北电力大学 电气与电子工程学院,北京 102206)
摘 要:介绍了国内中压配电网的架空线典型接线模式和电缆线典型接线模式,以苏州某地的系统参数为例,利用DIgsilent/Powerfactory 软件计算各典型接线的供电可靠性指标,平均供电可靠率(ASAI)和系统年平均缺供电量(ENS-LP)两大系统指标作为供电可靠性分析的指标依据,分析了线路分段情况、负荷均衡度、负荷密度及配电自动化等对中压配电网的7 种典型接线模式供电可靠性的影响,分析结果可为相关行业人员提供参考。
关键词:中压配电网;典型接线模式;可靠性分析
中图分类号:TM732 文献标识码:A 文章编号: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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