基于动态孤岛混合整数线性规划模型的主动配电网可靠性分析
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摘要
为了得到配电网最优孤岛划分的准确方案,准确评估分布式电源(distributed generation,DG)接入对提升配电网可靠性的有益效果,文章提出了基于混合整数线性规划(mixed integer linear programming,MILP)的多时段动态孤岛划分模型,并基于序贯蒙特卡洛模拟提出了考虑故障状态下动态孤岛的可靠性评估流程。动态孤岛划分模型考虑了分布式电源和负荷的波动性,并建立了分布式电源和和负荷的功率时序模型。通过建立支路功率与节点状态的线性逻辑约束保证故障期间孤岛的辐射状拓扑结构,以改进的RBTS-BUS6系统为例,对含分布式光储的主动配电网(active distribution network,ADN)进行可靠性分析,结果表明文章所提出的电力孤岛模型能最大范围地恢复供电,并有效提高配电网的可靠性水平。
In order to get the accurate scheme of optimal islanding partition in distribution network and accurately evaluate the beneficial effect of distributed generation access on improving the reliability of distribution network. A multi-time dynamic islanding model based on mixed-integer linear programming(MILP) is proposed. On the basis of sequential Monte Carlo simulation, a reliability evaluation process considering dynamic islands under fault conditions is proposed. The dynamic islanding partition model takes into account the fluctuation of distributed generation and load, and establishes the power sequential model of distributed generation and load. The radial topology of islands during fault is guaranteed by establishing linear logic constraints of branch power and node state. Taking the improved RBTS-BUS6 system as example, the reliability of active distribution network(ADN)with distributed solar power and energy storage is analyzed. The results show that the proposed power island model can restore power supply to a maximum extent and effectively improve the reliability level of distribution network.
In order to get the accurate scheme of optimal islanding partition in distribution network and accurately evaluate the beneficial effect of distributed generation access on improving the reliability of distribution network. A multi-time dynamic islanding model based on mixed-integer linear programming(MILP) is proposed. On the basis of sequential Monte Carlo simulation, a reliability evaluation process considering dynamic islands under fault conditions is proposed. The dynamic islanding partition model takes into account the fluctuation of distributed generation and load, and establishes the power sequential model of distributed generation and load. The radial topology of islands during fault is guaranteed by establishing linear logic constraints of branch power and node state. Taking the improved RBTS-BUS6 system as example, the reliability of active distribution network(ADN)with distributed solar power and energy storage is analyzed. The results show that the proposed power island model can restore power supply to a maximum extent and effectively improve the reliability level of distribution network.
引文
[1] PILO F,CELLI G,MOCCI S,et al.Multi-objective programming for optimal DG integration in active distribution systems[C]//2010 IEEE Power and Energy Society General Meeting.Minneapolis,MN,USA:IEEE,2010:1-7.
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[10] 闫涛,唐巍,王越,等.基于储能多状态模型的含微网配电系统可靠性评估[J].电网技术,2017,41(7):2222-2228.YAN Tao,TANG Wei,WANG Yue,et al.Reliability evaluation of distribution network with microgrid based on multi-state energy storage model[J].Power System Technology,2017,41(7):2222-2228.
[11] 葛少云,王浩鸣,王源山,等.含分布式风光蓄的配电系统可靠性评估[J].电力系统自动化,2012,36(5):16-23.GE Shaoyun,WANG Haoming,WANG Yuanshan,et al.Reliability evaluation of distribution system including distributed wind turbines,photovoltaic arrays and batteries[J].Automation of Electric Power Systems,2012,36(5):16-23.
[12] 王敏,宗炫君,袁越,等.含光伏电站的发电系统可靠性分析[J].中国电机工程学报,2013,33(34):42-49.WANG Min,ZONG Xuanjun,YUAN Yue,et al.Reliability analysis of generation systems with photovoltaic stations[J].Proceedings of the CSEE,2013,33(34):42-49.
[13] GRAHAM V A,HOLLANDS K G T.A method to generate synthetic hourly solar radiation globally[J].Solar Energy,1990,44(6):333-341.
[14] WANG P,BILLINTON R.Time sequential distribution system reliability worth analysis considering time varying load and cost models[J].IEEE Transactions on Power Delivery,1999,14(3):1046-1051.
[15] 王浩鸣,王哲,栗薇,等.基于自生成FMEA表的配电网可靠性评估方法[J].电力建设,2014,35(12):106-110.WANG Haoming,WANG Zhe,LI Wei,et al.Distribution network reliability evaluation based on auto-generated FMEA table[J].Electric Power Construction,2014,35(12):106-110.
[16] 梁惠施,程林,刘思革.基于蒙特卡罗模拟的含微网配电网可靠性评估[J].电网技术,2011,35(10):76-81.LIANG Huishi,CHENG Lin,LIU Sige.Monte Carlo simulation based reliability evaluation of distrebution system containing microgrids[J].Power System Technology,2011,35(10):76-81.
[17] 郭永基.电力系统可靠性分析[M].北京:清华大学出版社,2003:126-128.
[18] 黄伟,陈伯达,羿应棋,等.考虑光储可持续带载能力的配电网可靠性分析[J].电网技术,2018,42(5):1510-1517.HUANG Wei,CHEN Boda,YI Yingqi,et al.Distribution system reliability analysis considering sustainable on-load capacity of hybrid photovoltaic/energy-storage system[J].Power System Technology,2018,42(5):1510-1517.
[19] Probabilistic Methods Subcommittee.IEEE reliability test system[J].IEEE Transactions on Power Apparatus and Systems,1979,98(6):2047-2054.
[2] IEEE Standards Coordinating Committee 21.IEEE guide for design,operation,and integration of distribution resource island system with electric power system:IEEE 1547.4—2011[S].New York,USA:The Institute of Electrical and Electronics Engineers,2011.
[3] 王旭东,林济铿.基于分支定界的含分布式发电配网孤岛划分[J].中国电机工程学报,2011,31(7):16-20.WANG Xudong,LIN Jikeng.Island partition of the distribution system with distributed generation based on branch and bound algorithm[J].Proceedings of the CSEE,2011,31(7):16-20.
[4] 曾令诚,吕林,曾澜钰.基于sollin算法的含分布式电源的孤岛划分方法[J].电力自动化设备,2013,33(4):95-100.ZENG Lingcheng,Lü Lin,ZENG Lanyu.Islanding method based on sollin algorithm for grid with distributed generations[J].Electric Power Automation Equipment,2013,33(4):95-100.
[5] ZHU J,GU W,JIANG P,et al.Integrated approach for optimal island partition and power dispatch[J].Journal of Modern Power Systems and Clean Energy,2018,6(3):449-462.
[6] 李振坤,周伟杰,王坚敏,等.基于风光荷功率曲线的有源配电网动态孤岛划分方法[J].电力系统自动化,2016,40(14):58-64,71.LI Zhenkun,ZHOU Weijie,WANG Jianmin,et al.Dynamic islanding method of active power distribution network based on wind-photovoltaic-load curve[J].Automation of Electric Power Systems,2016,40(14):58-64,71.
[7] 刘会家,程璐瑶,黄景光,等.考虑间歇性DG与负荷响应的多时段主动配电网孤岛划分[J].电力建设,2018,39(2):50-57.LIU Huijia,CHENG Luyao,HUANG Jingguang,et al.Islanding of multi period active distribution network considering intermittent DG and load response[J].Electric Power Construction,2018,39(2):50-57.
[8] 马晨霄,刘洋,许立雄,等.同时考虑孤岛与重构的配电网故障恢复运行策略[J].电力建设,2018,39(8):128-136.MA Chenxiao,LIU Yang,XU Lixiong,et al.Fault recovery operation strategy for distribution network coordinating islanding and reconfiguration[J].Electric Power Construction,2018,39(8):128-136.
[9] ROCHA L F,BORGES C L T,TARANTO G N.Reliability evaluation of active distribution networks including islanding dynamics[J].IEEE Transactions on Power Systems,2016,32(2):1545-1552.
[10] 闫涛,唐巍,王越,等.基于储能多状态模型的含微网配电系统可靠性评估[J].电网技术,2017,41(7):2222-2228.YAN Tao,TANG Wei,WANG Yue,et al.Reliability evaluation of distribution network with microgrid based on multi-state energy storage model[J].Power System Technology,2017,41(7):2222-2228.
[11] 葛少云,王浩鸣,王源山,等.含分布式风光蓄的配电系统可靠性评估[J].电力系统自动化,2012,36(5):16-23.GE Shaoyun,WANG Haoming,WANG Yuanshan,et al.Reliability evaluation of distribution system including distributed wind turbines,photovoltaic arrays and batteries[J].Automation of Electric Power Systems,2012,36(5):16-23.
[12] 王敏,宗炫君,袁越,等.含光伏电站的发电系统可靠性分析[J].中国电机工程学报,2013,33(34):42-49.WANG Min,ZONG Xuanjun,YUAN Yue,et al.Reliability analysis of generation systems with photovoltaic stations[J].Proceedings of the CSEE,2013,33(34):42-49.
[13] GRAHAM V A,HOLLANDS K G T.A method to generate synthetic hourly solar radiation globally[J].Solar Energy,1990,44(6):333-341.
[14] WANG P,BILLINTON R.Time sequential distribution system reliability worth analysis considering time varying load and cost models[J].IEEE Transactions on Power Delivery,1999,14(3):1046-1051.
[15] 王浩鸣,王哲,栗薇,等.基于自生成FMEA表的配电网可靠性评估方法[J].电力建设,2014,35(12):106-110.WANG Haoming,WANG Zhe,LI Wei,et al.Distribution network reliability evaluation based on auto-generated FMEA table[J].Electric Power Construction,2014,35(12):106-110.
[16] 梁惠施,程林,刘思革.基于蒙特卡罗模拟的含微网配电网可靠性评估[J].电网技术,2011,35(10):76-81.LIANG Huishi,CHENG Lin,LIU Sige.Monte Carlo simulation based reliability evaluation of distrebution system containing microgrids[J].Power System Technology,2011,35(10):76-81.
[17] 郭永基.电力系统可靠性分析[M].北京:清华大学出版社,2003:126-128.
[18] 黄伟,陈伯达,羿应棋,等.考虑光储可持续带载能力的配电网可靠性分析[J].电网技术,2018,42(5):1510-1517.HUANG Wei,CHEN Boda,YI Yingqi,et al.Distribution system reliability analysis considering sustainable on-load capacity of hybrid photovoltaic/energy-storage system[J].Power System Technology,2018,42(5):1510-1517.
[19] Probabilistic Methods Subcommittee.IEEE reliability test system[J].IEEE Transactions on Power Apparatus and Systems,1979,98(6):2047-2054.