中压配网接线模式的GA-Pareto优选模型
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摘要
10 kV中压接线模式的选择受负荷密度、投资、可靠性等因素影响,是配电网规划与改造的关键。在不同负荷密度条件下,根据接线单元的供电能力确定所需数量。考虑多种因素对接线模式的投资成本和可靠性影响,结合用户停电损失综合函数,将可靠性与经济性进行属性转化。为了得到Pareto最优解,以影响接线模式的经济性、可靠性的线路参数建立初始种群,采用遗传算法(GA),以供电总成本最低为目标,获得任意负荷密度下的Pareto最优解集,从而建立中压接线模式的GA-Pareto优选模型。该理论已应用于中部某城市,为该市配电网建设提供理论依据。
The selection of 10 k V mid-voltage connection modes, which is the key to planning and transformation of distribution network, is affected by load density, investment, stability, etc. Under the condition of different load density, the connection unit capacity determines the required quantity. Considering the impact of many factors on investment cost and connection mode reliability, and combining the comprehensive function of user's power outage loss, the economy and reliability can be transferred between each other. The line parameters which impact the economy and reliability of connection mode are adopted as the initial group, the genetic algorithm is used, and the power supply's lowest total cost is taken as objective, to obtain the Pareto optimal solution set of any load density. Thus the GA-Pareto optimization model is established for mid-voltage connection mode. The model has been applied in a city in the central China, which supplies theoretical basis for the construction of distribution network of this city.
The selection of 10 k V mid-voltage connection modes, which is the key to planning and transformation of distribution network, is affected by load density, investment, stability, etc. Under the condition of different load density, the connection unit capacity determines the required quantity. Considering the impact of many factors on investment cost and connection mode reliability, and combining the comprehensive function of user's power outage loss, the economy and reliability can be transferred between each other. The line parameters which impact the economy and reliability of connection mode are adopted as the initial group, the genetic algorithm is used, and the power supply's lowest total cost is taken as objective, to obtain the Pareto optimal solution set of any load density. Thus the GA-Pareto optimization model is established for mid-voltage connection mode. The model has been applied in a city in the central China, which supplies theoretical basis for the construction of distribution network of this city.
引文
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[16]徐晶,李娟,谢秦,等.积极报装容量阶跃性的中压配电网接线模式研究[J].电工电能新技术,2014,33(8):67-71.XU Jing,LI Juan,XIE Qin,et al.Research on connection mode of mid-voltage distribution network considering user’s stepwise capacity[J].Advanced Technology of Electrical Engineering and Energy,2014,33(8):67-71.
[17]葛少云,季时宇,刘洪,等.基于多层次协同分析的高中压配电网可靠性评估[J].电工技术学报,2016,31(19):172-181.GE Shaoyun,JI Shiyu,LIU Hong,et al.Reliability assessment of high-medium voltage level distribution networks based on cooperative analysis of multi-level networks[J].Transactions of China Electrotechnical Society,2016,31(19):172-181.
[18]王主丁,韦婷婷,万凌云,等.计及多类开关和容量约束的中压配电网可靠性估算解析模型[J].电力系统自动化,2016,40(17):146-155.WANG Zhuding,WEI Tingting,WANG Lingyun,et al.Analytical reliability estimation model of medium voltage distribution networks considering different types of switches and capacity constraints[J].Automation of Electric Power Systems,2016,40(17):146-155.
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[2]孙义豪,李秋燕,丁岩,等.基于主成分分析及系统聚类的县域电网综合评价方法[J].电力系统保护与控制,2017,45(8):30-36.SUN Yihao,LI Qiuyan,DING Yan,et al.County power grid evaluation system based on principal component analysis and hierarchical cluster analysis[J].Power System Protection and Control,2017,45(8):30-36.
[3]YANG Hongming,YANG Songping,XU Yan.Electric vehicle route optimization considering time-of-use electricity price by learnable Partheno-genetic algorithm[J].IEEETransactions on Smart Grid,2015,6(2):657-666.
[4]黄飞,宋璇坤,周晖,等.基于效果与基础互动的电网智能化水平综合评价指标体系研究[J].电力系统保护与控制,2016,44(11):142-148.HUANG Fei,SONG Xuankun,ZHOU Hui,et al.Research on comprehensive evaluation index system of grid’s intelligence level based on interaction between effect and basis[J].Power System Protection and Control,2016,44(11):142-148.
[5]荆朝霞,李晓波,邬志峰,等.一种综合考虑馈线和主变约束的配电网主变N-1校验方法[J].电力系统保护与控制,2017,45(1):111-117.JING Zhaoxia,LI Xiaobo,WU Zhifeng,et al.A method of main-transformer N-1 verification for distribution network considering feeder and main-transformer constraints[J].Power System Protection and Control,2017,45(1):111-117.
[6]宋若晨,杨菁,唐勇俊,等.配电网开关站高可靠性接线模式比较研究[J].电网技术,2015,39(3):769-775.SONG Ruochen,YANG Jing,TANG Yongjun,et al.Comparative study on high-reliability connection modes for switching station in distribution network[J].Power System Technology,2015,39(3):769-775.
[7]葛少云,郭寅昌,刘洪,等.基于供电能力计算的高压配电网接线模式分析[J].电网技术,2014,38(2):405-411.GE Shaoyun,GUO Yinchang,LIU Hong,et al.Load supply capability based analysis of HV Distribution network connection mode[J].Power System Technology,2014,38(2):405-411.
[8]徐晶,李娟,谢秦,等.计及报装容量阶跃性的中压配电网接线模式研究[J].电工电能新技术,2014,33(8):67-71.XU Jing,LI Juan,XIE Qin,et al.Research on connection mode of mid-voltage distribution network considering user’s stepwise capacity[J].Advanced Technology of Electrical Engineering and Energy,2014,33(8):67-71.
[9]谢莹华,王成山,葛少云,等.城市配电网接线模式经济性和可靠性分析[J].电力自动化设备,2005,25(7):12-16.XIE Yinghua,WANG Chengshan,GE Shaoyun,et al.Economy and reliability analysis of connection modes in urban distribution[J].Electric Power Automation Equipment,2005,25(7):12-16.
[10]冯霜,王主丁,周建其,等.基于小分段的中压架空线接线模式分析[J].电力系统自动化,2013,37(4):62-68.FENG Shuang,WANG Zhuding,ZHOU Jianqi,et al.Medium-voltage overhead lines connection Mode analysis based on short segment[J].Automation of Electric Power Systems,2013,37(4):62-68.
[11]国宗,高翔,韦钢,等.城市中压配电网接线方式的优选[J].电力与能源,2014,35(1):43-46.GUO Zong,GAO Xiang,WEI Gang,et al.Optimal selection of connection scheme of urban medium voltage distribution network[J].Energy Technology,2014,35(1):43-46.
[12]许可,鲜杏,程杰,等.城市高压配电网典型接线的可靠性经济分析[J].电力科学与工程,2015(7):12-18.XU Ke,XIAN Xing,CHENG Jie,et al.The reliability and economy analysis of typical connection mode of high voltage urban distribution network[J].Electric Power Science and Engineering,2015(7):12-18.
[13]谢晓文,刘洪.中压配电网接线模式综合比较[J].电力系统及其自动化学报,2009,21(4):94-99.XIE Xiaowen,LIU Hong.Integrated contrast on connection modes of mid-voltage distribution networks[J].Proceedings of the CSU-EPSA,2009,21(4):94-99.
[14]戴仲覆,高强,谢敏,等.城市中压配电网典型接线模式的综合评估[J].南方电网技术,2011,5(1):57-60.DAI Zhongfu,GAO Qiang,XIE Min,et al.Acomprehensive evaluation of typical connection modes of urban medium-voltage distribution networks[J].Southern Power System Technology,2011,5(1):57-60.
[15]朱吉然,李龙桂,李欣然,等.基于网络状态评估的配电网络多目标优化重构方法[J].电力系统保护与控制,2017,45(1):98-103.ZHU Jiran,LI Longgui,LI Xinran,et al.Distribution network multi-objective reconfiguration optimization based on status assessment[J].Power System Protection and Control,2017,45(1):98-103.
[16]徐晶,李娟,谢秦,等.积极报装容量阶跃性的中压配电网接线模式研究[J].电工电能新技术,2014,33(8):67-71.XU Jing,LI Juan,XIE Qin,et al.Research on connection mode of mid-voltage distribution network considering user’s stepwise capacity[J].Advanced Technology of Electrical Engineering and Energy,2014,33(8):67-71.
[17]葛少云,季时宇,刘洪,等.基于多层次协同分析的高中压配电网可靠性评估[J].电工技术学报,2016,31(19):172-181.GE Shaoyun,JI Shiyu,LIU Hong,et al.Reliability assessment of high-medium voltage level distribution networks based on cooperative analysis of multi-level networks[J].Transactions of China Electrotechnical Society,2016,31(19):172-181.
[18]王主丁,韦婷婷,万凌云,等.计及多类开关和容量约束的中压配电网可靠性估算解析模型[J].电力系统自动化,2016,40(17):146-155.WANG Zhuding,WEI Tingting,WANG Lingyun,et al.Analytical reliability estimation model of medium voltage distribution networks considering different types of switches and capacity constraints[J].Automation of Electric Power Systems,2016,40(17):146-155.
[19]BAMDAD F,YONG F.Reliability assessment of smart grids considering indirect cyber-power interdependencies[J].IEEE Transactions on Smart Grid,2014,5(4):1677-1686.
[20]配电网规划设计技术导则:DL/T 5729-2016[S].The guide for planning and design of distribution network:DL/T 5729-2016[S].