中低压配电网节能改造方案经济效益评估
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摘要
中低压配电网节能改造的节能潜力巨大,从更换电力设备、采用节能技术以及提升电能质量3个角度,分析并量化了中低压配电网4种节能改造方法的节能效益,建立各节能方法的全寿命周期成本模型,通过净现值、内部收益率及投资回收期对节能方案进行经济效益评估。最后对山东Q地区的实际算例进行计算,其经济效益评估指标均满足经济可行性,表明本文所建立的模型可为节能方案的经济效益评估提供参考。
Considering the huge potential of energy-saving in the renovation of medium voltage and low voltage distribution network,the energy-saving benefits of four methods are analyzed and quantified from three perspectives,including replacing power equipment,using energy-saving technologies and improving power qualities.Then,the life-cycle cost model of this project is established and the economic benefit evaluation is carried out through net present value,internal rate of return and dynamic payback period.Finally,a practical example in Shandong Province is calculated.The result shows that it is suitable for investment through these economic indicators,which indicates that the model established in this paper can provide reference for the economic benefit evaluation of the energy-saving project.
Considering the huge potential of energy-saving in the renovation of medium voltage and low voltage distribution network,the energy-saving benefits of four methods are analyzed and quantified from three perspectives,including replacing power equipment,using energy-saving technologies and improving power qualities.Then,the life-cycle cost model of this project is established and the economic benefit evaluation is carried out through net present value,internal rate of return and dynamic payback period.Finally,a practical example in Shandong Province is calculated.The result shows that it is suitable for investment through these economic indicators,which indicates that the model established in this paper can provide reference for the economic benefit evaluation of the energy-saving project.
引文
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[11]徐冬云.新型节能配电变压器的经济性分析及选型建议[J].自动化应用,2014(9):71-72.XU Dongyun.Economic analysis and selection recommendations of novel energy-efficient distribution transformers[J].Automation Application,2014(9):71-72.
[12]王帅.6 kV线路无功补偿技术的节能效果估算[J].化工管理,2018(16):130.WANG Shuai.Energy saving estimation of reactive power compensation technology for 6 kV transmission line[J].Chemical Enterprise Management,2018(16):130.
[13]张碧涵.电力用户谐波治理的综合效益评估[D].北京:华北电力大学,2017.ZHANG Bihan.Comprehensive evaluation of harmonics management for power consumers[D].Beijing:North China Electric Power University,2017.
[14]张征凯,章元德,史亮,等.智能配电台区三相负荷不平衡治理方案[J].电力需求侧管理,2016,18(1):49-52.ZHANG Zhengkai,ZHANG Yuande,SHI Liang,et al.The governance scheme of three-phase unbalanced load management for intelligent distribution transformer[J].Power Demand Side Management,2016,18(1):49-52.
[15]徐焜耀,庞腊成,黄伟.城乡配电网节能评估与投资决策[M].北京:中国电力出版社,2011.XU Kunyao,PANG Lacheng,HUANG Wei.Energy saving evaluation and investment decision of urban and rural distribution network[M].Beijing:China Electric Power Press,2011.
[16]DL/T 985-2012.配电变压器能效技术经济评价导则[S].国家能源局,2012.DL/T 985-2012.Technical and economic evaluation guidelines for energy efficiency of distribution transformers[S].National Energy Administration,2012.
[2]吴霜,季聪,孙国强.含分布式储能的配电网多目标运行优化策略研究[J].电力工程技术,2018,37(2):20-26.WU Shuang,JI Cong,SUN Guoqiang.Multiple objection operation strategy optimization research of distribution network including distributed energy storage[J].Electric Power Engineering Teachnology,2018,37(2):20-26.
[3]国家能源局.2017年全社会用电量同比增长6.6%[EB/OL].(2018-01-22)[2018-11-05]http://www.nea.gov.cn/2018-01/22/c_136914159.html.National Energy Administration.6.6%year-on-year growth of total electricity consumption in 2017[EB/OL].(2018-01-22)[2018-11-05]http://www.nea.gov.cn/2018-01/22/c_136914159.html.
[4]工业和信息化部、质检总局、发展改革委.配电变压器能效提升计划(2015-2017年)[Z].2015-08-10.Ministry of Industry and Information Technology,State General Administration of the People’s Republic of China for Quality Supervision and Inspection and Quarantine,National Development and Reform Commission.Energy efficiency improvement plan for distribution transformers(2015-2017)[Z].2015-08-10.
[5]国家能源局.三峡电站2017年发电超过976亿kWh[EB/OL].(2018-01-10)[2018-11-05]http://www.nea.gov.cn/2018-01/10/c_136885203.html.National Energy Administration.The Three Gorges power station generated more than 97 billion 600 million kWh power in 2017[EB/OL].(2018-01-10)[2018-11-05]http://www.nea.gov.cn/2018-01/10/c_136885203.html.
[6]应丽云,刘敏,邓磊,等.配电网降损综述[J].电力系统保护与控制,2017,45(19):162-169.YING Liyun,LIU Ming,DENG Lei,et al.A comprehensive review of the loss reduction in distribution network[J].Power System Protection and Control,2017,45(19):162-169.
[7]彭显刚,林卓琼,刘艺.计及线损评估指标的中压配电线路节能改造决策[J].中国电力,2017,50(4):87-93.PENG Xiangang,LIN Zhuoqiong,LIU Yi.Research on energy-saving reform decision-making of medium-voltage distribution lines considering line loss evaluation index[J].Electric Power,2017,50(4):87-93.
[8]姜飞,涂春鸣,刘子维,等.配电网差异化节能规划方法及其应用[J].电网技术,2015,39(10):2 712-2 718.JIANG Fei,TU Chunming,LIU Ziwei,et al.Differentiated energy-saving planning method of distribution networks and its applications[J].Power System Technology,2015,39(10):2 712-2 718.
[9]徐良军,乐恩典,周健科,等.兼顾经济性和可靠性的配电网待修线改造方法研究[J].供用电,2018,35(2):52-56,73.XU Liangjun,LE Endian,ZHOU Jianke,et al.Research on reconstruction method of distribution network line selection considering both economy and reliability[J].Distribution&Utilization,2018,35(2):52-56,73.
[10]杨文锋,王彬宇,程卓,等.城市中低压配电网降损规划决策方法[J].电网技术,2014,38(9):2 598-2 604.YANG Wenfeng,WANG Binyu,CHENG Zhuo,et al.Optimized decision approach of loss reduction plan for medium-and low-voltage urban distribution networks[J].Power System Technology,2014,38(9):2 598-2 604.
[11]徐冬云.新型节能配电变压器的经济性分析及选型建议[J].自动化应用,2014(9):71-72.XU Dongyun.Economic analysis and selection recommendations of novel energy-efficient distribution transformers[J].Automation Application,2014(9):71-72.
[12]王帅.6 kV线路无功补偿技术的节能效果估算[J].化工管理,2018(16):130.WANG Shuai.Energy saving estimation of reactive power compensation technology for 6 kV transmission line[J].Chemical Enterprise Management,2018(16):130.
[13]张碧涵.电力用户谐波治理的综合效益评估[D].北京:华北电力大学,2017.ZHANG Bihan.Comprehensive evaluation of harmonics management for power consumers[D].Beijing:North China Electric Power University,2017.
[14]张征凯,章元德,史亮,等.智能配电台区三相负荷不平衡治理方案[J].电力需求侧管理,2016,18(1):49-52.ZHANG Zhengkai,ZHANG Yuande,SHI Liang,et al.The governance scheme of three-phase unbalanced load management for intelligent distribution transformer[J].Power Demand Side Management,2016,18(1):49-52.
[15]徐焜耀,庞腊成,黄伟.城乡配电网节能评估与投资决策[M].北京:中国电力出版社,2011.XU Kunyao,PANG Lacheng,HUANG Wei.Energy saving evaluation and investment decision of urban and rural distribution network[M].Beijing:China Electric Power Press,2011.
[16]DL/T 985-2012.配电变压器能效技术经济评价导则[S].国家能源局,2012.DL/T 985-2012.Technical and economic evaluation guidelines for energy efficiency of distribution transformers[S].National Energy Administration,2012.