基于分层分区的配电网差异化节能规划方法研究
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摘要
针对配电网节能规划的差异化和系统化问题,提出了一种考虑投资成本和节能效益的分层分区规划模型。上层规划在规定降损目标和总投资成本约束下,实现改造线路的优选及其投资金额的分配。下层规划模型以线路总支出费用最小为目标,满足各种运行约束和改造安装约束,生成节能改造优化组合方案。采用了线损预测和前推回代潮流计算相结合的混合算法对所提模型进行求解。实际对比某市节能技术改造方案的制定结果,验证了所提差异化节能规划方法的合理性和实用性。
Based on differentiated and systematic characteristic of energy saving programming in distribution networks, bi-level programming model for partitioned distribution network is established with considering investment cost and energy saving benefit. The determinate loss reduction target and total investment costs are used as the upper programming constraints, which satisfy optimal selection of reconstructive lines and its investment allocation. The follower programming objective is minimization of total expenditures, and its constraints are operation restricts and reconstruction restricts, which let energy saving reconstruction collaborative optimal schemes meet above requirements. Hybrid algorithm which integrates line loss prediction and forward and backward substitution flow calculation method is proposed to solve the above model. The results of examples and energy saving technological reconstruction programs in certain city verify the rationality and practicability of the proposed differentiated planning method.
Based on differentiated and systematic characteristic of energy saving programming in distribution networks, bi-level programming model for partitioned distribution network is established with considering investment cost and energy saving benefit. The determinate loss reduction target and total investment costs are used as the upper programming constraints, which satisfy optimal selection of reconstructive lines and its investment allocation. The follower programming objective is minimization of total expenditures, and its constraints are operation restricts and reconstruction restricts, which let energy saving reconstruction collaborative optimal schemes meet above requirements. Hybrid algorithm which integrates line loss prediction and forward and backward substitution flow calculation method is proposed to solve the above model. The results of examples and energy saving technological reconstruction programs in certain city verify the rationality and practicability of the proposed differentiated planning method.
引文
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[14]程新功,厉吉文,曹立霞,等.基于电网分区的多目标分布式并行无功优化研究[J].中国电机工程学报,2003,23(10):109-113.CHENG Xingong,LI Jiwen,CAO Lixia,et al.Multi-objective distributed parallel reactive power optimization based on suvarea division of the power systems[J].Proceedings of the CSEE,2003,23(10):109-113.
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[16]CHARLES D L,H AFEEZULLA K I,RAVICH ANDRAN S.Distribution network reconfiguration for loss reduction using ant colony system algorithm[C]//Proceedings of the 2005 Annual IEEE India Conference(INDICON’05),December 11-13,2005,Chennai,India:619-622.
[17]章文俊,程浩忠,王一,等.基于树形结构编码单亲遗传算法的配电网优化规划[J].电工技术学报,2009,24(5):154-160.ZHANG Wenjun,CHENG Zhonghao,WANG Yi,et al.Distribution network optimal planning based on tree structure encoding partheno-genetic algorithm[J].Transactions of China Electrotechnical Society,2009,24(5):154-160.
[2]宋春丽,刘涤尘,吴军,等.基于差异化全寿命周期成本的电网规划经济性评估方法[J].电网技术,2013,37(7):1849-1855.SONG Chunli,LIU Dichen,WU Jun,et al.An economic assessment of power system planning based on differentiated life cycle cost[J].Power System Technology,2013,37(7):1849-1855.
[3]李鹏,张勇军,谭伟聪,等.长安配网节能降耗潜力评估研究[J].电力系统保护与控制,2009,37(14):97-100.LI Peng,ZHANG Yongjun,TAN Weicong,et al.Study on energy saving potential assessment for Changan distribution network[J].Power System Protection and Control,2009,37(14):97-100.
[4]ZHAO Zilan,LIU Wenying,XU Peng,et al.Comprehensive energy-saving potential evaluation of distribution network based on analytical hierarchy process[C]//IEEE/PES Power and Energy Engineering Conference:Asia Pacific,2013:1-5.
[5]曾建敏,白先红,张勇军,等.多目标配电网综合节能潜力评估[J].电力系统保护与控制,2014,42(13):100-105.ZENG Jianmin,BAI Xianhong,ZHANG Yongjun,et al.Multi-objective comprehensive energy saving potential evaluation of distribution networks[J].Power System Protection and Control,2014,42(13):100-105.
[6]张晓虎,罗隆福,刘洁.基于负荷实测的配电网无功优化及其降损节能效益分析[J].电网技术,2012,36(5):226-231.ZHANG Xiaohu,LUO Longfu,LIU Jie.Load measurement based reactive power optimization for distribution network and analysis on its effects in loss reduction and energy conservation[J].Power System Technology,2012,36(5):226-231.
[7]胡泽春,钟明明,王佳贤,等.考虑多负荷水平的中低压配电网无功补偿优化规划[J].电工技术学报,2010,25(8):167-173.HU Zechun,ZHONG Mingming,WANGJiaxian,et al.Optimal reactive power compensation for medium and low voltage distribution network considering multiple load levels[J].Transactions of China Electrotechnical Society,2010,25(8):167-173.
[8]张勇军,陈超,廖民传.配电网节能改造优化建模研究[J].电力系统保护与控制,2010,38(15):60-64.ZHANG Yongjun,CHEN Chao,LIAO Minchuan.Research on optimal model for energy saving reconstruction of distribution networks[J].Power System Protection and Control,2010,38(15):60-64.
[9]徐国新,夏清,康重庆.抗灾型电网规划模式与模型[J].电力系统自动化,2010,34(3):17-21.XU Guoxin,XIA Qing,KANG Chongqing.Research on mode and model of anti-disaster transmission network expansion planning[J].Automation of Electric Power Systems,2010,34(3):17-21.
[10]范宏,程浩忠.考虑经济性可靠性的输电网二层规划模型及混合算法[J].中国电机工程学报,2008,28(16):1-7.FAN Hong,CHENG Haozhong.Transmission network bi-level programming model considering economy and reliability and hybrid algorithm[J].Proceedings of the CSEE,2008,28(16):1-7.
[11]屈刚,程浩忠,马泽良,等.考虑联络线传输功率的双层分区多目标输电网规划[J].中国电机工程学报,2009,29(31):40-46.QU Gang,CHENG Haozhong,MA Zeliang,et al.Bi-level multi-objective transmission planning with consideration of tie-line power transfer capability[J].Proceedings of the CSEE,2009,29(31):40-46.
[12]许旭锋,黄民翔,王婷婷,等.基于模糊机会约束二层规划的配电网检修计划优化[J].电工技术学报,2010,25(3):157-163.XU Xufeng,HUANG Minxiang,WANG Tingting,et al.Optimization of distribution network maintenance scheduling based on fuzzy chance-constrained bi-level programming[J].Transactions of China Electrotechnical Society,2010,25(3):157-163.
[13]盛四清,王浩.用于配电网规划的改进遗传算法[J].电网技术,2008,32(17):69-72.SHENG Siqing,WANG Hao.An improved genetic algorithm for distribution network planning[J].Power System Technology,2008,32(17):69-72.
[14]程新功,厉吉文,曹立霞,等.基于电网分区的多目标分布式并行无功优化研究[J].中国电机工程学报,2003,23(10):109-113.CHENG Xingong,LI Jiwen,CAO Lixia,et al.Multi-objective distributed parallel reactive power optimization based on suvarea division of the power systems[J].Proceedings of the CSEE,2003,23(10):109-113.
[15]张勇军,石辉.基于灰关联加权的配电网紧凑型节能改造投资规划[J].电力系统自动化,2010,34(22):46-50.ZHANG Yongjun,SHI Hui.Distribution network energy saving investment compact planning based on gray connectedness weighting[J].Automation of Electric Power Systems,2010,34(22):46-50.
[16]CHARLES D L,H AFEEZULLA K I,RAVICH ANDRAN S.Distribution network reconfiguration for loss reduction using ant colony system algorithm[C]//Proceedings of the 2005 Annual IEEE India Conference(INDICON’05),December 11-13,2005,Chennai,India:619-622.
[17]章文俊,程浩忠,王一,等.基于树形结构编码单亲遗传算法的配电网优化规划[J].电工技术学报,2009,24(5):154-160.ZHANG Wenjun,CHENG Zhonghao,WANG Yi,et al.Distribution network optimal planning based on tree structure encoding partheno-genetic algorithm[J].Transactions of China Electrotechnical Society,2009,24(5):154-160.