基于耗散功率转归分量的风电系统有功实时调度
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摘要
针对风速的随机性和间歇性给大规模风电并网电力系统的在线实时调度带来的困难,文中提出了一种基于耗散功率转归分量的含风电场电力系统有功实时调度方法。利用耗散功率分量理论推导出风电机组、常规机组与负荷之间的响应关系,从而计算出负荷功率对发电机出力的灵敏度,根据灵敏度信息确定实时调度中参与调整的常规机组的功率调整因子,以及时补偿风电输出波动而产生的功率过剩或缺额;并在一个在线调度周期内,利用机组与负荷之间的响应关系建立了以系统总有功网损最小为目标,计及线路阻塞管理以及风电场有功和无功功率关系约束的实时优化调度模型。最后利用接有风电场的IEEE9节点和IEEE30节点系统对文中所提模型进行仿真分析,仿真结果验证了所提方法的合理性和正确性。
Randomicity and intermittence of wind speed make large-scale wind power integration power system dis-patch difficult. An active power real-time scheduling method for wind power system based on the dissipated powercomponent is proposed. The response-relationship between the wind turbine generators,conventional units and theloads are derived by using the theory of dissipation power component. And the sensitivity of load power to generatoroutput is calculated. According to the sensitivity information,the power adjustment factors of the participated con-ventional units are determined in real-time scheduling to compensate the surplus or shortage of power which iscaused by fluctuations of wind power output;And in an online scheduling cycle,a real-time optimal scheduling mod-el which takes the minimum total active power loss as the objective function and considers the congestion manage-ment and the relationship between the active and reactive power output of the wind farm is established. Finally,themodel is applied to analyze of IEEE9-bus and IEEE30-bus system including wind power generation,and the simulation results show that the proposed method is reasonable and correct.
Randomicity and intermittence of wind speed make large-scale wind power integration power system dis-patch difficult. An active power real-time scheduling method for wind power system based on the dissipated powercomponent is proposed. The response-relationship between the wind turbine generators,conventional units and theloads are derived by using the theory of dissipation power component. And the sensitivity of load power to generatoroutput is calculated. According to the sensitivity information,the power adjustment factors of the participated con-ventional units are determined in real-time scheduling to compensate the surplus or shortage of power which iscaused by fluctuations of wind power output;And in an online scheduling cycle,a real-time optimal scheduling mod-el which takes the minimum total active power loss as the objective function and considers the congestion manage-ment and the relationship between the active and reactive power output of the wind farm is established. Finally,themodel is applied to analyze of IEEE9-bus and IEEE30-bus system including wind power generation,and the simulation results show that the proposed method is reasonable and correct.
引文
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[15] CHEN C L,LEE T Y,JAN R M. Optimal wind-thermalcoordination dispatch in isolated power systems with largeintegration of wind capacity[J]. Energy Conversion andManagement,2006,47(18/19):3456-3472.
[16]魏萍,倪以信,吴复立,等.基于图论的输电线路功率组成和发电机与负荷间功率输送关系的快速分析[J].中国电机工程学报,2000,20(6):22-26.WEI Ping,NI Yixin,WU Fuli,et al. Power transfer alloca-tion for open access using graph theory[J]. Proceedings ofthe CSEE,2000,20(6):22-26.
[17] WEI Ping,YUAN Bin,NI Yixin,et al. Power flow tracingfor transmission open access[C]//IEEE International Confer-ence on Electric Utility Deregulation,Restructuring andPower Technologies. London:[s.n.],2000:476-481.
[18]谢开贵,李春燕,赵渊,等.电力系统功率分配的解析模型和算法[J].中国电机工程学报,2005,25(22):27-31.XIE Kaigui,LI Chunyan,ZHAO Yuan,et al. Electricalanalytical model and algorithm for distributing power usingthe downstream distribution matrix[J]. Proceedings of theCSEE,2005,25(22):27-31.
[19] QU Zhijiang,QIN Jianhua,WANG Xintao,et al. A powerflow tracing method based on the circuit analysis of powersupply path[C]//Power and Energy Engineering Conference.Wuhan,China:IEEE,2011:1-6.
[20]吴俊玲,周双喜,孙建锋,等.并网风力发电场的最大注入功率分析[J].电网技术,2004,28(20):28-32.WU Junling,ZHOU Shuangxi,SUN Jianfeng,et al. Analy-sis on maximum power injection of wind farm connected topower system[J]. Power System Technology,2004,28(20):28-32.
[21]张元,郝丽丽,戴嘉祺.风电场等值建模研究综述[J].电力系统保护与控制,2015,43(6):138-146.ZHANG Yuan,HAO Lili,DAI Jiaqi. Overview of the equiv-alent model research for wind farms[J]. Power System Pro-tection and Control,2015,43(6):138-146.
[22] FEIJOO A E,CIDRAS J. Modeling of wind farms in theload flow analysis[J]. IEEE Transactions on Power Systems,2000,15(1):110-115.
[23]曹娜,赵海翔,陈默子,等.潮流计算中风电场的等值[J].电网技术,2006,30(9):53-56.CAO Na,ZHAO Haixiang,CHEN Mozi,et al. Equivalencemethod of wind farm in steady-state load flow calcula-tion[J]. Power System Technology,2006,30(9):53-56.
[24]黄泽荣,彭建春,肖文娴,等.基于耗散功率转归分量的网损微增率新算法[J].电力系统及其自动化学报,2010,22(1):31-36.HUANG Zerong,PENG Jianchun,XIAO Wenxian,et al. In-cremental transmission loss algorithm based on the imputa-tion of an impedance-branch dissipation power[J]. Proceed-ings of the CSU-EPSA,2010,22(1):31-36.
[25]彭建春,江辉.基于两步联盟博弈的输电网损耗分配方法[J].中国电机工程学报,2005,25(4):57-63.PENG Jianchun,JIANG Hui. A two-step coalitional gamebased transmission losses allocation[J]. Proceedings of theCSEE,2005,25(4):57-63.
[26]吴义纯,丁明,张立军.含风电场的电力系统潮流计算[J].中国电机工程学报,2005,25(4):36-39.WU Yichun,DING Ming,ZHANG Lijun. Power flow analy-sis in electrical power networks including wind farms[J].Proceedings of the CSEE,2005,25(4):36-39.
[2]李俊峰,时璟丽,施鹏飞,等.风力在12中国[M].北京:化工大学出版社,2005.LI Junfeng,SHI Jingli,SHI Pengfei,et al. Wind power 12grade in China[M]. Beijing:University of Chemical Technol-ogy Press,2005.
[3]刘世林,文劲宇,孙海顺,等.风电并网中的储能技术研究进展[J].电力系统保护与控制,2013,41(23):145-153.LIU Shilin,WEN Jinyu,SUN Haishun,et al. Progress onapplications of energy storage technology in wind power in-tegrated to the grid[J]. Power System Protection and Con-trol,2013,41(23):145-153.
[4]李晖,马喜平,董开松,等.大电网末端风力发电系统故障穿越关键技术[J].高压电器,2017,53(1):192-196.LI Hui,MA Xiping,DONG Kaisong,et al. Fault ridethrough for wind power system in the terminal of the powergrid system[J]. High Voltage Apparatus,2017,53(1):192-196.
[5]李扬,葛乐,林一.电力市场下计及节能环保的实时发电调度策略[J].电力自动化设备,2009,29(3):42-45.LI Yang,GE Le,LIN Yi. Real-time power dispatch strategyconsidering energy saving and environmental protection[J].Electric Power Automation Equipment,2009,29(3):42-45.
[6]雷亚洲.与风电并网相关的研究课题[J].电力系统自动化,2003,27(8):84-89.LEI Yazhou. Studies on wind farm integration into powersystem[J]. Automation of Electric Power Systems,2003,27(8):84-89.
[7]张海峰,高峰,吴江,等.含风电的电力系统动态经济调度模型[J].电网技术,2013,37(5):1298-1303.ZHANG Haifeng,GAO Feng,WU Jiang,et al. A dynamiceconomic dispatching model for power grid containing wind power generation system[J]. Power System Technology,2013,37(5):1298-1303.
[8]周玮,彭昱,孙辉,等.含风电场的电力系统动态经济调度[J].中国电机工程学报,2009,29(25):13-18.ZHOU Wei,PENG Yu,SUN Hui,et al. Dynamic economicdispatch in wind power integrated system[J]. Proceedings ofthe CSEE,2009,29(25):13-18.
[9]郭永明,李仲昌,尤小虎,等.计及备用容量优化配置的风火联合随机经济调度模型[J].电力系统保护与控制,2016,44(24):1-6.GUO Yongming,LI Zhongchang,YOU Xiaohuo,et al. Sto-chastic economic dispatch model for joint delivery of windpower and thermal power generation system considering op-timal scheduling of reserve capacity[J]. Power System Pro-tection and Control,2016,44(24):1-6.
[10]李禹鹏,冯楠,崔勇,等.考虑风电不确定性及柔性负荷的安全约束机组组合问题研究[J].电力建设,2017,38(2):129-137.LI Yupeng,FENG Nan,CUI Yong,et al. Security con-strained unit commitment problem considering wind poweruncertainty and flexible load[J]. Electric Power Construc-tion,2017,38(2):129-137.
[11]周玮,胡姝博,孙辉,等.考虑大规模风电并网的电力系统区间非线性经济调度研究[J].中国电机工程学报,2017,37(2):557-564.ZHOU Wei,HU Shubo,SUN Hui,et al. Interval nonlineareconomic dispatch in large scale wind power integratedsystem[J]. Proceedings of the CSEE,2017,37(2):557-564.
[12]盛四清,孙晓霞.风电-抽水蓄能联合运行优化模型[J].电力系统及其自动化学报,2016,28(11):100-103.SHENG Siqing,SUN Xiaoxia. Operational optimizationmodel for combined operation of wind power and pumped-storage plant[J]. Proceedings of the CSU-EPSA,2016,28(11):100-103.
[13]周玮,孙辉,顾宏,等.含风电场的电力系统经济调度研究综述[J].电力系统保护与控制,2011,39(24):148-154.ZHOU Wei,SUN Hui,GU Hong,et al. A review on econom-ic dispatch of power system including wind farms[J]. PowerSystem Protection and Control,2011,39(24):148-154.
[14]袁铁江,晁勤,吐尔逊·伊不拉音,等.面向电力市场的含风电电力系统的环境经济调度优化[J].电网技术,2009,33(20):131-135.YUAN Tiejiang,CHAO Qin,TU Erxun·yibulayin,et al. Elec-tricity market-oriented optimization of environmental eco-nomic dispatching for power grid containing wind power[J].Power System Technology,2009,33(20):131-135.
[15] CHEN C L,LEE T Y,JAN R M. Optimal wind-thermalcoordination dispatch in isolated power systems with largeintegration of wind capacity[J]. Energy Conversion andManagement,2006,47(18/19):3456-3472.
[16]魏萍,倪以信,吴复立,等.基于图论的输电线路功率组成和发电机与负荷间功率输送关系的快速分析[J].中国电机工程学报,2000,20(6):22-26.WEI Ping,NI Yixin,WU Fuli,et al. Power transfer alloca-tion for open access using graph theory[J]. Proceedings ofthe CSEE,2000,20(6):22-26.
[17] WEI Ping,YUAN Bin,NI Yixin,et al. Power flow tracingfor transmission open access[C]//IEEE International Confer-ence on Electric Utility Deregulation,Restructuring andPower Technologies. London:[s.n.],2000:476-481.
[18]谢开贵,李春燕,赵渊,等.电力系统功率分配的解析模型和算法[J].中国电机工程学报,2005,25(22):27-31.XIE Kaigui,LI Chunyan,ZHAO Yuan,et al. Electricalanalytical model and algorithm for distributing power usingthe downstream distribution matrix[J]. Proceedings of theCSEE,2005,25(22):27-31.
[19] QU Zhijiang,QIN Jianhua,WANG Xintao,et al. A powerflow tracing method based on the circuit analysis of powersupply path[C]//Power and Energy Engineering Conference.Wuhan,China:IEEE,2011:1-6.
[20]吴俊玲,周双喜,孙建锋,等.并网风力发电场的最大注入功率分析[J].电网技术,2004,28(20):28-32.WU Junling,ZHOU Shuangxi,SUN Jianfeng,et al. Analy-sis on maximum power injection of wind farm connected topower system[J]. Power System Technology,2004,28(20):28-32.
[21]张元,郝丽丽,戴嘉祺.风电场等值建模研究综述[J].电力系统保护与控制,2015,43(6):138-146.ZHANG Yuan,HAO Lili,DAI Jiaqi. Overview of the equiv-alent model research for wind farms[J]. Power System Pro-tection and Control,2015,43(6):138-146.
[22] FEIJOO A E,CIDRAS J. Modeling of wind farms in theload flow analysis[J]. IEEE Transactions on Power Systems,2000,15(1):110-115.
[23]曹娜,赵海翔,陈默子,等.潮流计算中风电场的等值[J].电网技术,2006,30(9):53-56.CAO Na,ZHAO Haixiang,CHEN Mozi,et al. Equivalencemethod of wind farm in steady-state load flow calcula-tion[J]. Power System Technology,2006,30(9):53-56.
[24]黄泽荣,彭建春,肖文娴,等.基于耗散功率转归分量的网损微增率新算法[J].电力系统及其自动化学报,2010,22(1):31-36.HUANG Zerong,PENG Jianchun,XIAO Wenxian,et al. In-cremental transmission loss algorithm based on the imputa-tion of an impedance-branch dissipation power[J]. Proceed-ings of the CSU-EPSA,2010,22(1):31-36.
[25]彭建春,江辉.基于两步联盟博弈的输电网损耗分配方法[J].中国电机工程学报,2005,25(4):57-63.PENG Jianchun,JIANG Hui. A two-step coalitional gamebased transmission losses allocation[J]. Proceedings of theCSEE,2005,25(4):57-63.
[26]吴义纯,丁明,张立军.含风电场的电力系统潮流计算[J].中国电机工程学报,2005,25(4):36-39.WU Yichun,DING Ming,ZHANG Lijun. Power flow analy-sis in electrical power networks including wind farms[J].Proceedings of the CSEE,2005,25(4):36-39.