异步联网格局下广东电网规划网架适应性综合评估
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摘要
结合异步联网后受端电网的安全稳定特性,从安全稳定性和经济性两个方面考虑,提出包括负载率水平、短路电流水平、多馈入有效短路比、过载安全裕度、多回直流换相失败引发率、暂态失稳故障引发率、网损以及建设成本在内的网架适应性评估指标,将客观熵权与专家经验权重相结合以确定综合权重,采用基于理想点的综合评价方法,对不同规划网架方案的适应性进行评估。基于2025年广东电网规划数据,综合评估异步联网后广东电网远期4种规划网架的适应性,验证了所提指标及评估方法的有效性。
Combining characteristics of safety and stability of the receiving end power grid after asynchronous interconnection,this paper considers safety stability and economy and puts forward evaluation indexes for grid adaptability including load rate,short-circuit current,multi-infeed effective short-circuit ratio,overload safety margin,multiple DC commutation failure initiation rate,transient instability fault initiation rate,network loss and construction cost,and so on.It combines objective entropy weights and expert experience weights to determine comprehensive weights.By adopting a comprehensive evaluation method based on ideal point,it makes evaluation on adaptabilities of different planning grid schemes.On the basis of planning data of Guangdong power grid in 2025,it makes comprehensive evaluation on adaptabilities of four kinds of planning grid of Guangdong power grid after asynchronous interconnection and verifies effectiveness of the proposed indexes and evaluation method.
Combining characteristics of safety and stability of the receiving end power grid after asynchronous interconnection,this paper considers safety stability and economy and puts forward evaluation indexes for grid adaptability including load rate,short-circuit current,multi-infeed effective short-circuit ratio,overload safety margin,multiple DC commutation failure initiation rate,transient instability fault initiation rate,network loss and construction cost,and so on.It combines objective entropy weights and expert experience weights to determine comprehensive weights.By adopting a comprehensive evaluation method based on ideal point,it makes evaluation on adaptabilities of different planning grid schemes.On the basis of planning data of Guangdong power grid in 2025,it makes comprehensive evaluation on adaptabilities of four kinds of planning grid of Guangdong power grid after asynchronous interconnection and verifies effectiveness of the proposed indexes and evaluation method.
引文
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[12]杨林,汪惟源,万振东,等.“十三五”江苏电网网架评估研究[J].电网与清洁能源,2016,32(7):71-76.YANG Lin,WANG Weiyuan,WAN Zhendong,et al.Research on the performance evaluation of Jiangsu power grid structure in the 13th Five-Year[J].Power System and Clean Energy,2016,32(7):71-76.
[13]DL755—2001,电力系统安全稳定导则[S].
[14]林伟芳,汤涌,卜广全.多馈入交直流系统短路比的定义和应用[J].中国电机工程学报,2008,28(31):1-8.LIN Weifang,TANG Yong,PU Guangquan.Definition and application of short circuit ratio for multi-infeed AC/DC power systems[J].Proceedings of the CSEE,2008,28(31):1-8.
[15]周保荣,洪潮,饶宏,等.广东多直流输电换相失败对电网稳定运行的影响[J].南方电网技术,2017,11(3):18-24.ZHOU Baorong,HONG Chao,RAO Hong,et al.Influence of simultaneous communication failure of Guangdong multiple HVDC on power system secure operation[J].Southern Power System Technology,2017,11(3):18-24.
[16]GB/T26399—2011,电力系统安全稳定控制技术导则[S].
[17]HWANG C L,YOON K P.Multiple attribute decision making:methods and applications[M].NewYork:SpringerVerlag,1981.
[18]倪静.基于TOPSIS法的黑启动决策方法[J].广东电力,2009,22(12):8-11.NI Jing.Black-start decision-making method based on TOPSIS[J].Guangdong Electric Power,2009,22(12):8-11.
[19]张健钊,陈星莺,徐石明,等.基于AHP-熵权法的工业大用户用电能效评估[J].电网与清洁能源,2017,33(1):57-63.ZHANG Jianzhao,CHEN Xingying,XU Shiming,et al.Electric utilization evaluation of large industrial users based on AHP and entropy method[J].Power System and Clean Energy,2017,33(1):57-63.
[20]孙薇,梁毅.基于熵权模糊综合评价的风机选型研究[J].广东电力,2015,28(9):60-65,71.SUN Wei,LIANG Yi.Research on selection for wind turbine based on entropy weight and fuzzy comprehensive evaluation[J].Guangdong Electric Power,2015,28(9):60-65,71.
[21]郭东,王佩成,李亚,等.基于多层次模糊评估的配电网节能潜力综合评价方法[J].陕西电力,2015,43(1):66-70,93.GUO Dong,WANG Peicheng,LI Ya,et al.Energy-saving potential comprehensive evaluation method of distribution network based on multilevel fuzzy evaluation[J].Shaanxi Electric Power,2015,43(1):66-70,93.
[22]雷庆生,鄢晶,方仍存,等.改进型中心点三角白化权函数在县域配电网综合评价中的应用[J].陕西电力,2017,45(3):55-60.LEI Qingsheng,YAN Jing,FANG Rengcun,et al.Application of modified center point triangular whitenization weight function in comprehensive evaluation of county distribution network[J].Shaanxi Electric Power,2017,45(3):55-60.
[23]电力规划设计总院.南方电网电力工业发展“十三五”及中长期规划研究[R].北京:电力规划设计总院,2014.
[24]广东电网有限责任公司.广东“十三五”及中长期电力工业规划研究报告[R].广州:广东电网有限责任公司,2015.
[2]饶建业,杜忠明,陈铮,等.广东电网网架形态及远景目标方案[J].广东电力,2016,29(3):38-45.RAO Jianye,DU Zhongming,CHEN Zheng,et al.Guangdong power grid structure and its prospect target scheme[J].Guangdong Electric Power,2016,29(3):38-45.
[3]王涛,岳贤龙,顾雪平,等.基于犹豫模糊决策法的电网脆弱性综合评估[J].电网技术,2017,41(7):2272-2281.WANG Tao,YUE Xianlong,GU Xueping,et al.Comprehensive evaluation of power grid vulnerability based on hesitant fuzzy decision making method[J].Power System Technology,2017,41(7):2272-2281.
[4]栾翔,于群,贺庆,等.考虑一致性风险价值的电网薄弱环节综合评估指标[J].中国电力,2017,50(6):62-68.LUAN Xiang,YU Qun,HE Qing,et al.Integrated assessment index of power grid’s weak links by considering coherent value at risk[J].Electric Power,2017,50(6):62-68.
[5]杨冬,刘玉田,牛新生.分区电网限流运行方式的综合决策方法[J].电力系统自动化,2010,34(12):34-38.YANG Dong,LIU Yutian,NIU Xinsheng.Integrated decision method of operation schemes for limiting short-circuit currents in district grids[J].Automation of Electric Power Systems,2010,34(12):34-38.
[6]王佳明,刘文颖,李群炬,等.基于多层次模糊综合评价模型的短路电流限制措施优化配置[J].电网技术,2011,35(11):125-129.WANG Jiaming,LIU Wenying,LI Qunju,et al.Optimal configuration of short-circuit current limitation measures based on multilevel fuzzy comprehensive evaluation model[J].Power System Technology,2011,35(11):125-129.
[7]周勤勇,杨冬,刘玉田,等.多直流馈入电网限制短路电流方案多目标优化[J].电力系统自动化,2015,39(3):140-145.ZHOU Qinyong,YANG Dong,LIU Yutian,et al.Multiobjective optimization for short-circuit current limitation schemes in multiple DC infeed power systems[J].Automation of Electric Power Systems,2015,39(3):140-145.
[8]沈阳武,彭晓涛,毛荀,等.特高压落点规划的评价指标体系和方法[J].电网技术,2012,36(12):44-53.SHEN Yangwu,PENG Xiaotao,MAO Xun,et al.Comprehensive evaluation indexes framework and evaluation method on location layout of UHV substations[J].Power System Technology,2012,36(12):44-53.
[9]牛新生,李雪亮,柴赟,等.基于熵权理论的特高压电网落点规划[J].中国电力,2017,50(2):23-28.NIU Xinsheng,LI Xueliang,CHAI Yun,et al.Terminal planning of UHV power grid based on entropy weight theory[J].Electric Power,2017,50(2):23-28.
[10]易杨,龙霏,林建熙,等.多馈入直流系统的VSC-HVDC落点优选方法[J].智慧电力,2017,45(12):39-45.YI Yang,LONG Fei,LIN Jianxi,et al.Optimal position of VSC-HVDC access to multi-infeed HVDC system[J].Smart Power,2017,45(12):39-45.
[11]张程铭,程浩忠,柳璐,等.高比例可再生能源接入的输电网结构适应性指标及评估方法[J].电力系统自动化,2017,41(21):55-61.ZHANG Chengming,CHENG Haozhong,LIU Lu,et al.Adaptability index and evaluation method for power transmission network structure with integration of high-penetration renewable energy[J].Automation of Electric Power Systems,2017,41(21):55-61.
[12]杨林,汪惟源,万振东,等.“十三五”江苏电网网架评估研究[J].电网与清洁能源,2016,32(7):71-76.YANG Lin,WANG Weiyuan,WAN Zhendong,et al.Research on the performance evaluation of Jiangsu power grid structure in the 13th Five-Year[J].Power System and Clean Energy,2016,32(7):71-76.
[13]DL755—2001,电力系统安全稳定导则[S].
[14]林伟芳,汤涌,卜广全.多馈入交直流系统短路比的定义和应用[J].中国电机工程学报,2008,28(31):1-8.LIN Weifang,TANG Yong,PU Guangquan.Definition and application of short circuit ratio for multi-infeed AC/DC power systems[J].Proceedings of the CSEE,2008,28(31):1-8.
[15]周保荣,洪潮,饶宏,等.广东多直流输电换相失败对电网稳定运行的影响[J].南方电网技术,2017,11(3):18-24.ZHOU Baorong,HONG Chao,RAO Hong,et al.Influence of simultaneous communication failure of Guangdong multiple HVDC on power system secure operation[J].Southern Power System Technology,2017,11(3):18-24.
[16]GB/T26399—2011,电力系统安全稳定控制技术导则[S].
[17]HWANG C L,YOON K P.Multiple attribute decision making:methods and applications[M].NewYork:SpringerVerlag,1981.
[18]倪静.基于TOPSIS法的黑启动决策方法[J].广东电力,2009,22(12):8-11.NI Jing.Black-start decision-making method based on TOPSIS[J].Guangdong Electric Power,2009,22(12):8-11.
[19]张健钊,陈星莺,徐石明,等.基于AHP-熵权法的工业大用户用电能效评估[J].电网与清洁能源,2017,33(1):57-63.ZHANG Jianzhao,CHEN Xingying,XU Shiming,et al.Electric utilization evaluation of large industrial users based on AHP and entropy method[J].Power System and Clean Energy,2017,33(1):57-63.
[20]孙薇,梁毅.基于熵权模糊综合评价的风机选型研究[J].广东电力,2015,28(9):60-65,71.SUN Wei,LIANG Yi.Research on selection for wind turbine based on entropy weight and fuzzy comprehensive evaluation[J].Guangdong Electric Power,2015,28(9):60-65,71.
[21]郭东,王佩成,李亚,等.基于多层次模糊评估的配电网节能潜力综合评价方法[J].陕西电力,2015,43(1):66-70,93.GUO Dong,WANG Peicheng,LI Ya,et al.Energy-saving potential comprehensive evaluation method of distribution network based on multilevel fuzzy evaluation[J].Shaanxi Electric Power,2015,43(1):66-70,93.
[22]雷庆生,鄢晶,方仍存,等.改进型中心点三角白化权函数在县域配电网综合评价中的应用[J].陕西电力,2017,45(3):55-60.LEI Qingsheng,YAN Jing,FANG Rengcun,et al.Application of modified center point triangular whitenization weight function in comprehensive evaluation of county distribution network[J].Shaanxi Electric Power,2017,45(3):55-60.
[23]电力规划设计总院.南方电网电力工业发展“十三五”及中长期规划研究[R].北京:电力规划设计总院,2014.
[24]广东电网有限责任公司.广东“十三五”及中长期电力工业规划研究报告[R].广州:广东电网有限责任公司,2015.