中低压配电网线损计算方法与降损措施的研究
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摘要
线损是电力网电能损耗的简称,是供电企业一项重要的技术经济指标。随着我国电力体制改革的进一步深化,如何在新的市场体系和电价机制之下,有效降低电网电能损耗、提高企业经济效益,是各级电力企业迫切需要解决的共同问题。
为进一步降低和控制线损率,加强线损管理必须要求更加精确计算配电网的理论线损及网络中的分布,为配电网的安全经济运行提供参考。
本文通过调查分析许昌县电业局中低压配电网现状、存在的问题,在研究配电网线损理论计算原理和基本方法的基础上,开展了许昌县电业局配电网线损理论计算的实施工作,并对配电网线损理论计算结果进行分析,找出其中的问题和薄弱环节,对其降损节能措施进行了研究。
线损是电能以热能和电晕的形式消失于电网元件的周围空间,是一种自然的物理现象,是不可避免的部分。但是,线损电量中还有可以避免不合理的部分。因此,可以采取适当措施,降低到合理值范围内。
为了做好降损节能工作,真正取得满意的效果,本文结合许昌县电业局线损理论计算结果,研究了降损节能的措施方案、降低配电网线损的技术措施及原理、降低配电网线损的管理措施。
实践证明,对配电网进行必要的无功补偿是供电企业节能降耗的重要技术方法,节能效果显著。本文结合许昌县电业局配电网实际情况,提出无功补偿的典型技术方案及实际应用情况。
Line loss is a short of electric power losses, it is an important technical and economic indicators of power supply enterprise. With the further deepening of China's electric power system and the new market system and the price mechanism, how to effectively reduce line loss and improve economic efficiency of enterprises is an urgent need to address common problems for the companies of electric power at all levels.
To further reduce and control the line loss rate, strengthening the line loss management require a more accurate calculation of the theoretical line losses of distribution network, the results can provide reference for the safe and economic operation of distribution.
This article analyse the distribution network and the existing problems in Xuchang County Electric Power Bureau, research with line loss calculation principles and basic methods to carry out line loss theoretical calculation and analysis.We found the problems and weaknesses,and studied the measures to reduce line loss.
Line loss is the electricity to heat and corona in the form disappear in the space surrounding the grid components.Line loss is an inevitable natural physical phenomena. However, we can avoid irrational part in the line loss. Therefore, we may take appropriate measures to reduce the line loss.
Order to carry out the work on energy-saving and achieve satisfactory results, this article study the energy-saving measures from the program , technical and management aspects,with the help of Line Loss theoretical calculation of Xuchang County Electric Power Bureau.
Practice has proved that the reactive power compensation for the distribution network is an important energy-saving technical methods, energy-saving results are obvious.With the actual situation of Xuchang County Electric Power Bureau distribution network,this article presents reactive power compensation of the typical technical solutions and practical applications.
为进一步降低和控制线损率,加强线损管理必须要求更加精确计算配电网的理论线损及网络中的分布,为配电网的安全经济运行提供参考。
本文通过调查分析许昌县电业局中低压配电网现状、存在的问题,在研究配电网线损理论计算原理和基本方法的基础上,开展了许昌县电业局配电网线损理论计算的实施工作,并对配电网线损理论计算结果进行分析,找出其中的问题和薄弱环节,对其降损节能措施进行了研究。
线损是电能以热能和电晕的形式消失于电网元件的周围空间,是一种自然的物理现象,是不可避免的部分。但是,线损电量中还有可以避免不合理的部分。因此,可以采取适当措施,降低到合理值范围内。
为了做好降损节能工作,真正取得满意的效果,本文结合许昌县电业局线损理论计算结果,研究了降损节能的措施方案、降低配电网线损的技术措施及原理、降低配电网线损的管理措施。
实践证明,对配电网进行必要的无功补偿是供电企业节能降耗的重要技术方法,节能效果显著。本文结合许昌县电业局配电网实际情况,提出无功补偿的典型技术方案及实际应用情况。
Line loss is a short of electric power losses, it is an important technical and economic indicators of power supply enterprise. With the further deepening of China's electric power system and the new market system and the price mechanism, how to effectively reduce line loss and improve economic efficiency of enterprises is an urgent need to address common problems for the companies of electric power at all levels.
To further reduce and control the line loss rate, strengthening the line loss management require a more accurate calculation of the theoretical line losses of distribution network, the results can provide reference for the safe and economic operation of distribution.
This article analyse the distribution network and the existing problems in Xuchang County Electric Power Bureau, research with line loss calculation principles and basic methods to carry out line loss theoretical calculation and analysis.We found the problems and weaknesses,and studied the measures to reduce line loss.
Line loss is the electricity to heat and corona in the form disappear in the space surrounding the grid components.Line loss is an inevitable natural physical phenomena. However, we can avoid irrational part in the line loss. Therefore, we may take appropriate measures to reduce the line loss.
Order to carry out the work on energy-saving and achieve satisfactory results, this article study the energy-saving measures from the program , technical and management aspects,with the help of Line Loss theoretical calculation of Xuchang County Electric Power Bureau.
Practice has proved that the reactive power compensation for the distribution network is an important energy-saving technical methods, energy-saving results are obvious.With the actual situation of Xuchang County Electric Power Bureau distribution network,this article presents reactive power compensation of the typical technical solutions and practical applications.
引文
[1]国家电网公司.县供电企业线损规范管理辅导[M].北京:中国电力出版社,2006
[2]Feng Guihong,Zeng Jianbin,Gong Shuqiu,et al.Losses analy-sis and management system of distribution networks based on local area network[C]//IEEE/PES.2005 Transmission and Distribution Conference and Exhibition:Asia and Pacific,2005
[3]J.Nazarko,Z.Styczyski,M.Poplawski.The Approacs h to energy losses calculations in low voltage distribution networks[C]//Engineering Society Winter Meeting.IEEE,2000
[4]A.Bhuiya,N.Chowdhury,M.Huq.Optimum Market Strategy for An IndependentPower Preducer [J].Electrical and Computer Engineering,2004
[5]Steven T,Bruce A Kirchhoff,Scott Newber.Differentiating Market Strategies for Disruptive Technologies[J].IEEE Transactions on Engineering Management,2002
[6]Jun Yan.The Impact of Transmission Network on the Market Strategies[C]//Inaugural IEEE PES 2005 Conference and Exposition in Africa,2005:7
[7]廖学琦.农网线损计算分析与降损措施[M].北京:中国水利水电出版社,2008
[8]国家电网公司.电力网电能损耗管理规定[S].2004
[9]许绍良,宋冶等.电力网电能损耗计算导则[M].北京:中国电力出版社,2000
[10]Wu Xiaomeng,Liu Jian,Yu Jianming.An improved approach to theoretial losses analysis of oil field distribution network[C]//International Conference on power Systems Technology,2006:933-938
[11]Ma Jin,Xu Jianyuan.Calculation and analysis for line losses in distribution networks[C]//Proceedings of International Conference on Power System Technology,2002:2537-2541
[12]Marinko Stojkov,Kruno Trupinic,Srete Nikolovski.Technical losses in power distribution network[J],IEEE Mediterranean Electro technical Conference,Malaga,2006:1048-1051
[13]丁心海,罗毅芳等.改进配电网线损计算方法的几点建议[J].电力系统自动化,2001,25(13):57-60
[14]古万明.配电网理论线损计算方法研究[D].黑龙江:东北林业大学,2006
[15]陈海涵,程启诚.等值电阻法计算配电损耗的理论和实践[J].广东电力,2004,11(3):5-8
[16]杨丽徙,刘辉等.低压电网线损计算中的改进形状系数法[J].电力需求测管理,2009,11(4):29-32
[17]董继征,陈洪云等.基于负荷分类的台区线损测算方法[J].现代电力,2006,23(1):44-48
[18]洪成佳.线损管理信息系统[J].农村电气化,2007,12(1):35-37
[19]郑建锋.当前供电企业线损管理浅析[J].科技资讯,2007,8(7):42
[20]张昌银.浅谈线损管理工作中的几个误区[J].电气应用,2006,25(1):74-76
[21]陈绍杰.线损管理存在的问题及完善[J].农村电气化,2007,12(3):47-48
[22]房超群.线损管理:科学运用四分法[J].中国电力企业管理,2007,12(12):42-43
[23]刘海峰.配电变压器经济运行分析[J].电力需求测管理,2009,11(5):48-49
[24]郑琳.配电变压器的经济运行[J].电力需求测管理,2006,8(5):61-63
[25]夏春燕.变压器经济运行分析与应用[J].变压器,2007,44(12):24-28
[26]王永建.以科学管理稳定线损[J].中国电力企业管理,2007,12(8):11-15
[27]范月凡.线损管理的激励机制[J].中国电力企业管理,2007,12(10):55-59
[28]章艳萍.管理线损的分析与控制[J].云南电业,2007,12(4):34-35
[29]龙爱群,崔仁涛.电能量远程计量系统及其综合应用环境[J].电网技术,2005,31(03):81-84
[30]Charytoniuk V,Chen M S,Kotas P,et al.Demand forecasting in power distribution system using nonparametric probability density estimation.IEEE Transactions on Power Systems[J],1999,14(4):1200-1206
[31]王海群.电网谐波污染及用户侧谐波管理[J].电力需求侧管理,2008,10(3):78-80
[2]Feng Guihong,Zeng Jianbin,Gong Shuqiu,et al.Losses analy-sis and management system of distribution networks based on local area network[C]//IEEE/PES.2005 Transmission and Distribution Conference and Exhibition:Asia and Pacific,2005
[3]J.Nazarko,Z.Styczyski,M.Poplawski.The Approacs h to energy losses calculations in low voltage distribution networks[C]//Engineering Society Winter Meeting.IEEE,2000
[4]A.Bhuiya,N.Chowdhury,M.Huq.Optimum Market Strategy for An IndependentPower Preducer [J].Electrical and Computer Engineering,2004
[5]Steven T,Bruce A Kirchhoff,Scott Newber.Differentiating Market Strategies for Disruptive Technologies[J].IEEE Transactions on Engineering Management,2002
[6]Jun Yan.The Impact of Transmission Network on the Market Strategies[C]//Inaugural IEEE PES 2005 Conference and Exposition in Africa,2005:7
[7]廖学琦.农网线损计算分析与降损措施[M].北京:中国水利水电出版社,2008
[8]国家电网公司.电力网电能损耗管理规定[S].2004
[9]许绍良,宋冶等.电力网电能损耗计算导则[M].北京:中国电力出版社,2000
[10]Wu Xiaomeng,Liu Jian,Yu Jianming.An improved approach to theoretial losses analysis of oil field distribution network[C]//International Conference on power Systems Technology,2006:933-938
[11]Ma Jin,Xu Jianyuan.Calculation and analysis for line losses in distribution networks[C]//Proceedings of International Conference on Power System Technology,2002:2537-2541
[12]Marinko Stojkov,Kruno Trupinic,Srete Nikolovski.Technical losses in power distribution network[J],IEEE Mediterranean Electro technical Conference,Malaga,2006:1048-1051
[13]丁心海,罗毅芳等.改进配电网线损计算方法的几点建议[J].电力系统自动化,2001,25(13):57-60
[14]古万明.配电网理论线损计算方法研究[D].黑龙江:东北林业大学,2006
[15]陈海涵,程启诚.等值电阻法计算配电损耗的理论和实践[J].广东电力,2004,11(3):5-8
[16]杨丽徙,刘辉等.低压电网线损计算中的改进形状系数法[J].电力需求测管理,2009,11(4):29-32
[17]董继征,陈洪云等.基于负荷分类的台区线损测算方法[J].现代电力,2006,23(1):44-48
[18]洪成佳.线损管理信息系统[J].农村电气化,2007,12(1):35-37
[19]郑建锋.当前供电企业线损管理浅析[J].科技资讯,2007,8(7):42
[20]张昌银.浅谈线损管理工作中的几个误区[J].电气应用,2006,25(1):74-76
[21]陈绍杰.线损管理存在的问题及完善[J].农村电气化,2007,12(3):47-48
[22]房超群.线损管理:科学运用四分法[J].中国电力企业管理,2007,12(12):42-43
[23]刘海峰.配电变压器经济运行分析[J].电力需求测管理,2009,11(5):48-49
[24]郑琳.配电变压器的经济运行[J].电力需求测管理,2006,8(5):61-63
[25]夏春燕.变压器经济运行分析与应用[J].变压器,2007,44(12):24-28
[26]王永建.以科学管理稳定线损[J].中国电力企业管理,2007,12(8):11-15
[27]范月凡.线损管理的激励机制[J].中国电力企业管理,2007,12(10):55-59
[28]章艳萍.管理线损的分析与控制[J].云南电业,2007,12(4):34-35
[29]龙爱群,崔仁涛.电能量远程计量系统及其综合应用环境[J].电网技术,2005,31(03):81-84
[30]Charytoniuk V,Chen M S,Kotas P,et al.Demand forecasting in power distribution system using nonparametric probability density estimation.IEEE Transactions on Power Systems[J],1999,14(4):1200-1206
[31]王海群.电网谐波污染及用户侧谐波管理[J].电力需求侧管理,2008,10(3):78-80