计及发展不确定性的配电网柔性规划方法
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摘要
伴随着中国城市化的快速发展,配电网规划中的不确定性因素越来越多,为此提出了一套配电网柔性规划的思路、模型和方法,涉及变电站、通道、中压网架组网形态及其过渡。其中,通道规划进行主干通道预留以便于新增负荷和变电站的就近接入;提出了基于多场景概率的站址预留优选方法,以及基于盈亏平衡分析的站址预留优化决策;阐述了环状型组网形态在柔性规划中的优势,提出了网状型和环状型组网形态的优选模型及其启发式求解方法;提出了优先针对中压配电网主干线布线的柔性规划思路;基于推导的变电站最远供电距离估算表,提出了通过调整站间供电范围实现网架的柔性过渡。算例分析验证了所提柔性规划方法的有效性和实用性。
With the rapid development of urbanization in China, there are more and more uncertain factors in distribution network planning. Therefore, a new set of ideas, models and methods of flexible planning for distribution networks is proposed, which is related with substations, channels, networking forms and their transition of medium voltage network structures. Firstly, it is pointed out that all main channels should be reserved for the convenient access of new nearby loads and substations. Secondly, for the determination of substation site reservation schemes, the corresponding optimization method is put forward based on multi-scenario probabilities, and a decision-making method is proposed based on the break-even analysis. Then, the advantages of a ring type networking form are elaborated for flexible planning, and the optimization model and corresponding heuristic solution method are proposed to make a choice between a mesh-type structure and a ring-type structure. It is also proposed that a planning priority is given to the main trunk lines of a medium voltage distribution network. Finally, based on the estimated table of farthest power supply distances, some flexible transition schemes of networking forms are proposed by adjusting the power supply ranges. The effectiveness and applicability of the proposed flexible planning methods are verified through numerical examples.
With the rapid development of urbanization in China, there are more and more uncertain factors in distribution network planning. Therefore, a new set of ideas, models and methods of flexible planning for distribution networks is proposed, which is related with substations, channels, networking forms and their transition of medium voltage network structures. Firstly, it is pointed out that all main channels should be reserved for the convenient access of new nearby loads and substations. Secondly, for the determination of substation site reservation schemes, the corresponding optimization method is put forward based on multi-scenario probabilities, and a decision-making method is proposed based on the break-even analysis. Then, the advantages of a ring type networking form are elaborated for flexible planning, and the optimization model and corresponding heuristic solution method are proposed to make a choice between a mesh-type structure and a ring-type structure. It is also proposed that a planning priority is given to the main trunk lines of a medium voltage distribution network. Finally, based on the estimated table of farthest power supply distances, some flexible transition schemes of networking forms are proposed by adjusting the power supply ranges. The effectiveness and applicability of the proposed flexible planning methods are verified through numerical examples.
引文
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[12] 胡玉生,翟进乾,张辉,等.变电站规划优化解析模型和简化算法[J].智慧电力,2018,46(1):63-70.HU Yusheng,ZHAI Jinqian,ZHANG Hui,et al.Analytical models and simplified algorithms for substation optimization planning[J].Smart Power,2018,46(1):63-70.
[13] 张靓.北京中心城区110 kV地下变电站的建设[J].供用电,2007,24(6):53-55.ZHANG Liang.Construction of 110 kV underground substation in central city of Beijing[J].Distribution & Utilization,2007,24(6):53-55.
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[17] 向婷婷,王主丁,刘雪莲,等.中低压馈线电气计算方法的误差分析和估算公式改进[J].电力系统自动化,2012,36(19):105-109.XIANG Tingting,WANG Zhuding,LIU Xuelian,et al.Error analysis and improvement of voltage/power loss estimation formula for middle and low voltage feeders[J].Automation of Electric Power Systems,2012,36(19):105-109.
[18] 李彦生,王雁雄,王敬宇,等.中压配电网电缆管网规划[J].云南电力技术,2018,46(1):25-40.LI Yansheng,WANG Yanxiong,WANG Jingyu,et al.A practical planning method of cable networks in MV distribution networks and its application[J].Yunnan Electric Power,2018,46(1):25-40.
[19] 吴涵,林韩,温步瀛,等.巴黎、新加坡中压配电网供电模型启示[J].电力与电工,2010,30(2):4-7.WU Han,LIN Han,WEN Buying,et al.Revelation on power models of MV distribution network of Paris and Singapore[J].Electric Power and Electrical Engineering,2010,30(2):4-7.
[20] 明煦,王主丁,王敬宇,等.基于供电网格优化划分的中压配电网规划[J].电力系统自动化,2018,42(22):159-164.DOI:10.7500/AEPS20180208005.MING Xu,WANG Zhuding,WANG Jingyu,et al.Mesh optimization generation based medium voltage distribution network planning[J].Automation of Electric Power Systems,2018,42(22):159-164.DOI:10.7500/AEPS20180208005.
[21] 王赛一.不确定性条件下的城市配电网规划方法探讨[J].华东电力,2008(4):44-45.WANG Saiyi.Urban distribution network planning with consideration of uncertainties[J].East China Electric Power,2008(4):44-45.
[2] 程浩忠,范宏,翟海保.输电网柔性规划研究综述[J].电力系统及其自动化学报,2007,19(1):21-27.CHENG Haozhong,FAN Hong,ZHAI Haibao.Review of transmission network flexible planning[J].Proceedings of the CSU-EPSA,2007,19(1):21-27.
[3] 韩晓慧,王联国.输电网优化规划模型及算法分析[J].电力系统保护与控制,2011,39(23):143-148.HAN Xiaohui,WANG Lianguo.Review of transmission network optimal planning model and algorithm[J].Power System Protection and Control,2011,39(23):143-148.
[4] 张立波,程浩忠,曾平良,等.基于不确定理论的输电网规划[J].电力系统自动化,2016,40(16):159-167.ZHANG Libo,CHENG Haozhong,ZENG Pingliang,et al.Transmission network planning approaches on uncertainty theories[J].Automation of Electric Power Systems,2016,40(16):159-167.
[5] 李振伟,马明禹,杨娜,等.配电网多阶段多场景规划方式研究[J].电网与清洁能源,2015,31(7):49-53.LI Zhenwei,MA Mingyu,YANG Na,et al.Study on distribution network multi-scenario planning mode[J].Advances of Power System & Hydroelectric Engineering,2015,31(7):49-53.
[6] 王一哲,汤涌,董朝阳.电力市场环境下输电网混合性规划模型[J].电力系统自动化,2016,40(13):35-40.WANG Yizhe,TANG Yong,DONG Zhaoyang.Hybrid criterion planning model for transmission system planning under electricity market environment[J].Automation of Electric Power Systems,2016,40(13):35-40.
[7] 程浩忠,朱海峰,马则良,等.基于等微增率准则的电网灵活规划方法[J].上海交通大学学报,2003,37(9):1351-1353.CHENG Haozhong,ZHU Haifeng,MA Zeliang,et al.A novel method of electric power network flexible based on equal incremental principle[J].Journal of Shanghai Jiaotong University,2003,37(9):1351-1353.
[8] 麻常辉,杨永军,鄢安河,等.考虑发电和负荷不确定因素的输电网灵活规划[J].电力系统保护与控制,2008,36(21):29-32.MA Changhui,YANG Yongjun,YAN Anhe,et al.On transmission flexible planning considering the uncertainties of generation and load[J].Power System Protection and Control,2008,36(21):29-32.
[9] 丁涛,李澄,胡源,等.考虑非预期条件的电力系统多阶段随机规划建模理论与方法[J].电网技术,2017,41(11):3566-3573.DING Tao,LI Cheng,HU Yuan,et al.Multi-stage stochastic programming for power system planning considering nonanticipative constraints[J].Power System Technology,2017,41(11):3566-3573.
[10] 赵国波,刘天琪,李兴源,等.基于灰色机会约束规划的输电系统规划[J].电网技术,2009,33(1):22-25.ZHAO Guobo,LIU Tianqi,LI Xingyuan,et al.Power transmission system planning based on grey chance constrained programming[J].Power System Technology,2009,33(1):22-25.
[11] 金华征,程浩忠,杨晓梅,等.模糊集对分析法应用于计及ATC的多目标电网规划[J].电力系统自动化,2005,29(21):49-53.JIN Huazheng,CHENG Haozhong,YANG Xiaomei,et al.Application of fuzzy set pair analysis in multi-objective transmission network planning considering ATC[J].Automation of Electric Power Systems,2005,29(21):49-53.
[12] 胡玉生,翟进乾,张辉,等.变电站规划优化解析模型和简化算法[J].智慧电力,2018,46(1):63-70.HU Yusheng,ZHAI Jinqian,ZHANG Hui,et al.Analytical models and simplified algorithms for substation optimization planning[J].Smart Power,2018,46(1):63-70.
[13] 张靓.北京中心城区110 kV地下变电站的建设[J].供用电,2007,24(6):53-55.ZHANG Liang.Construction of 110 kV underground substation in central city of Beijing[J].Distribution & Utilization,2007,24(6):53-55.
[14] 配电网规划设计技术导则:Q/GDW 1738—2012[S].北京:国家电网公司,2012.The guide of planning and design of distribution network:Q/GDW 1738—2012[S].Beijing:State Grid Corporation of China,2006.
[15] 配电网规划设计技术导则:DL/T 5729—2016[S].2016.The guide for planning and design of distribution network:DL/T 5729—2016[S].2016.
[16] 国家电网公司农电工作部.农村电网规划培训教材[M].北京:中国电力出版社,2006.Rural Power Work Department of State Grid Corporation of China.Training materials of rural power grid planning[M].Beijing:China Electric Power Press,2006.
[17] 向婷婷,王主丁,刘雪莲,等.中低压馈线电气计算方法的误差分析和估算公式改进[J].电力系统自动化,2012,36(19):105-109.XIANG Tingting,WANG Zhuding,LIU Xuelian,et al.Error analysis and improvement of voltage/power loss estimation formula for middle and low voltage feeders[J].Automation of Electric Power Systems,2012,36(19):105-109.
[18] 李彦生,王雁雄,王敬宇,等.中压配电网电缆管网规划[J].云南电力技术,2018,46(1):25-40.LI Yansheng,WANG Yanxiong,WANG Jingyu,et al.A practical planning method of cable networks in MV distribution networks and its application[J].Yunnan Electric Power,2018,46(1):25-40.
[19] 吴涵,林韩,温步瀛,等.巴黎、新加坡中压配电网供电模型启示[J].电力与电工,2010,30(2):4-7.WU Han,LIN Han,WEN Buying,et al.Revelation on power models of MV distribution network of Paris and Singapore[J].Electric Power and Electrical Engineering,2010,30(2):4-7.
[20] 明煦,王主丁,王敬宇,等.基于供电网格优化划分的中压配电网规划[J].电力系统自动化,2018,42(22):159-164.DOI:10.7500/AEPS20180208005.MING Xu,WANG Zhuding,WANG Jingyu,et al.Mesh optimization generation based medium voltage distribution network planning[J].Automation of Electric Power Systems,2018,42(22):159-164.DOI:10.7500/AEPS20180208005.
[21] 王赛一.不确定性条件下的城市配电网规划方法探讨[J].华东电力,2008(4):44-45.WANG Saiyi.Urban distribution network planning with consideration of uncertainties[J].East China Electric Power,2008(4):44-45.