基于SVC的大规模双馈风电场次同步振荡研究
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摘要
为了探究动态无功补偿装置与大规模双馈风电场次同步振荡之间的关系,文中在MATLAB/Simlink软件搭建了含SVC的双馈风机经无串补线路并网系统模型,结合时域仿真法研究了SVC的拓扑结构、投入时间、控制器参数和系统扰动对系统运行特性的影响。结果表明:不同的SVC拓扑结构投入系统后,均会引发系统发生次同步振荡,且与投入系统的时间无关。当次同步振荡出现的情况下,给系统施加一个小扰动,控制器参数K_p过大产生超调,激增了次同步振荡。由于电压的超调发生振荡,进而导致各个SVC无功量的不规律运动,AVR中比例系数K_p的超调是产生次同步振荡的源。
In order to explore the relationship between dynamic reactive power compensation device with large DFIG wind farm subsynchronous oscillation,in this paper,MATLAB/Simlink software to build a doubly fed wind machine with SVC the series compensated transmission line model of the network system,studied the topology structure of SVC based on the time domain simulation method,input time,impact on the operating characteristics of the system disturbance the controller parameters and the system. The results show that SVC different topology of the system,will cause the system to subsynchronous oscillation,and has nothing to do with the input system of time. When the subsynchronous oscillation occurred in the case,apply a small perturbation to the system,leading to excessive production K_p overshoot causes a surge of subsynchronous oscillation,due to the overshoot of the voltage oscillation,which leads to irregular motion of the SVC reactive power. The overshoot of the scale factor AVR in K_p is the source of subsynchronous oscillation.
In order to explore the relationship between dynamic reactive power compensation device with large DFIG wind farm subsynchronous oscillation,in this paper,MATLAB/Simlink software to build a doubly fed wind machine with SVC the series compensated transmission line model of the network system,studied the topology structure of SVC based on the time domain simulation method,input time,impact on the operating characteristics of the system disturbance the controller parameters and the system. The results show that SVC different topology of the system,will cause the system to subsynchronous oscillation,and has nothing to do with the input system of time. When the subsynchronous oscillation occurred in the case,apply a small perturbation to the system,leading to excessive production K_p overshoot causes a surge of subsynchronous oscillation,due to the overshoot of the voltage oscillation,which leads to irregular motion of the SVC reactive power. The overshoot of the scale factor AVR in K_p is the source of subsynchronous oscillation.
引文
[1]倪以信,陈寿孙,张宝霖.动态电力系统的理论和分析[M].北京:清华大学出版社,2002.NI Yixin,CHEN Shousun,ZHANG Baolin.Theory and analysis of dynamic power system[M].Beijing:Tsinghua University Press,2002.
[2]李光琦.电力系统暂态分析[M].北京:中国电力出版社,1985.LI Guangqi.Power system transient analysis[M].Beijing:China Electric Power Press,1985.
[3]程时杰,曹一家,江全元.电力系统次同步振荡的理论与方法[M].北京:科学出版社,2009.CHENG Shijie,CAO Yijia,JIANG Quanyuan.Theory and method of subsynchronous oscillation in power system[M].Beijing:Science Press,2009.
[4]马明智.组合型静止无功补偿装置的研究与设计[D].成都:西南交通大学,2014.MA Mingzhi.Desigen and Research of combined static var compensators[D].Chengdu:Southwest Jiaotong University,2014.
[5]刘洪涛,徐政,周长春.静止无功补偿器对发电机组次同步振荡特性的影响[J].电网技术,2003,27(1):1-4.LIU Hongtao,XU Zheng,ZHOU Changchun.A study on subsynchronous oscillation of generating set connected to static var compensator[J].Power System Technology,2003,27(1):1-4.
[6]赵欣,高山,张宁宇.SVC接入位置对次同步振荡的影响机理与SVC控制策略研究[J].中国电机工程学报,2013,33(25):107-114.ZHAO Xin,GAO Shan,ZHANG Ningyu.Influence of SVClocation on subsynchronous oscillation and SVC control strategy research[J].Proceedings of the CSEE,2013,33(25):107-114.
[7]谢小荣,王路平,贺静波,等.电力系统次同步谐振/振荡的形态分析[J].电网技术,2017,41(4):1043-1049.XIE Xiaorong,WANG Luping,HE Jingbo,et al.Analysis of subsynchronous resonance/oscillation types in power systems[J].Power System Technology,2017,41(4):1043-1049.
[8]肖湘宁,罗超,廖坤玉.新能源电力系统次同步振荡问题研究综述[J].电工技术学报,2017,32(6):85-97.XIAO Xiangning,LUO Chao,LIAO Kunyu.Review of the research on subsynchronous oscillation issues in electric power system with renewable energy sources[J].Transactions of China Electrotechnical Society,2017,32(6):85-97.
[9]王伟胜,张冲,何国庆,等.大规模风电场并网系统次同步振荡研究综述[J].电网技术,2017,41(4):1050-1060.WANG Weisheng,ZHANG Chong,HE Guoqing,et al.Overview of on subsynchronous oscillations in large scale wind farm integrated system[J].Power System Technology,2017,41(4):1050-1060.
[10]李明节,于钊,许涛,等.新能源并网系统引发的复杂振荡问题及其对策研究[J].电网技术,2017,41(4):1035-1042.LI Mingjie,YU Zhao,XU Tao,et al.Study of complex oscillation caused by renewable energy integration and its solution[J].Power System Technology,2017,41(4):1035-1042.
[11]任普春,石文辉,许晓艳,等.应用SVC提高风电场接入电网的电压稳定性[J].中国电力,2007,40(11):97-101.REN Puchun,SHI Wenhui,XU Xiaoyan,et al.A study of voltage stability improvement by static var compensators in the electric power system including wind farms[J].Electric Power,2007,40(11):97-101.
[12]张超,卢新良,孙心洲.应用SVC提高双馈感应发电机并网的风电场暂态电压稳定性[J].电网与清洁能源,2016,32(10):153-159.ZHANG Chao,LU Xinliang,SUN Xinzhou.Applying SVCto enhance transient voltage stability of wind farms with doubly fed induction generator installations[J].Advances of Power System&Hydroelectric Engineering,2016,32(10):153-159.
[13]姚波,樊艳芳.集群风电区域振荡原因分析及对策研究[J].可再生能源,2015,33(8):1123-1129.YAO Bo,FAN Yanfang.Analysis and countermeasure research on the cause of oscillation in clusters of wind power[J].Renewable Energy Resources,2015,33(8):1123-1129.
[14]崔正湃,王皓靖,马锁明,等.大规模风电汇集系统动态无功补偿装置运行现状及提升措施[J].电网技术,2015,39(7):1873-1878.CUI Zhengpai,WANG Haojing,MA Suoming,et al.Operation situation analysis and improvement measure study for dynamic reactive compensation equipment applied in largescale wind power systems[J].Power System Technology,2015,39(7):1873-1878.
[15]刘京波,崔正湃,吴宇辉,等.大规模风电汇集系统动态无功补偿装置性能测试及改进措施探讨[J].中国电力,2016,49(12):139-143.LIU Jingbo,CUI Zhengpai,WU Yuhui,et al.Technical performance test and improvement measure study for dynamic reactive compensation devices applied in large-scale wind power system[J].Electric Power,2016,49(12):139-143.
[16]谢小荣,刘华坤,贺静波,等.直驱风机风电场与交流电网相互作用引发次同步振荡的机理与特性分析[J].中国电机工程学报,2016,36(9):2366-2372.XIE Xiaorong,LIU Huakun,HE Jingbo,et al.Mechanism and characteristics of subsynchronous oscillation caused by the iteraction between full-converter wind turbines and ACsystems[J].Proceedings of the CSEE,2016,36(9):2366-2372.
[17]刘隽,李兴源,汤广福.SVC电压控制与阻尼调节间的相互作用机理[J].中国电机工程学报,2008,28(1):12-17.LIU Jun,LI Xingyuan,TANG Guangfu.Interrelations between SVC voltage control and damping control[J].Proceedings of the CSEE,2008,28(1):12-17.
[18]迟永宁,田新首,汤海雁,等.双馈风电机组与静止无功发生器交互作用原理及系统振荡特性研究[J].电网技术,2017,41(2):486-492.CHI Yongning,TIAN Xinshou,TANG Haiyan,et al.Interactions between DFIGs and SVG and oscillation characteristics of power grid connected wind turbines[J].Power System Technology,2017,41(2):486-492.
[19]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.Research on fault ride through for wind power system in the terminal of the power grid system[J].High Voltage Apparatus,2017,53(1):192-196.
[20]张建军.谐波电压传递特性分析研究[J].高压电器,2016,52(10):130-134.ZHANG Jianjun.Study of transfer characteristics of harmonic voltage[J].High Voltage Apparatus,2016,52(10):130-134.
[21]乔和,关紫微,颜廷武,等.SVG的自适应控制方法研究[J].高压电器,2017,53(1):169-174.QIAO He,GUAN Ziwei,YAN Tingwu,et al.Research on the adaptive control method of SVG[J].High Voltage Apparatus,2017,53(1):169-174.
[22]常喜强,赵明君,梁静,等.基于风电仿真模型等值的相关讨论[J].四川电力技术,2014(4):31-35.CHANG Xiqiang,ZHAO Mingjun,LIANG Jing,et al.Based on the equivalence of wind power simulation model[J].Sichuan Electric Power Technology,2014(4):31-35.
[23]陈帆,赵婉雯.特高压直流无功控制电压选择优化研究[J].高压电器,2016,52(11):29-33.CHEN Fan,ZHAO Wanwen.Optimization of voltage selection for UHVDC reactive power control[J].High Voltage Apparatus,2016,52(11):29-33.
[24]乔和,关紫微,王孟男,等.不平衡电压和闪变下静止无功发生器的鲁棒稳定性研究[J].高压电器,2017,53(4):144-149.QIAO He,GUAN Ziwei,WANG Mengnan,et al.Research on robust stability for SVG under the unbalance voltage and flicker conditions[J].High Voltage Appa-ratus,2017,53(4):144-149.
[25]刘兴杰,田建设,丁波,等.应用MATLAB进行电力系统分析和动态仿真[J].电力自动化设备,2004,24(3):43-45.LIU Xingjie,TIAN Jianshe,DING Bo,et al.Power system analysis and simulation with MATLAB[J].Electric Power Automation Equipment,2004,24(3):43-45.
[2]李光琦.电力系统暂态分析[M].北京:中国电力出版社,1985.LI Guangqi.Power system transient analysis[M].Beijing:China Electric Power Press,1985.
[3]程时杰,曹一家,江全元.电力系统次同步振荡的理论与方法[M].北京:科学出版社,2009.CHENG Shijie,CAO Yijia,JIANG Quanyuan.Theory and method of subsynchronous oscillation in power system[M].Beijing:Science Press,2009.
[4]马明智.组合型静止无功补偿装置的研究与设计[D].成都:西南交通大学,2014.MA Mingzhi.Desigen and Research of combined static var compensators[D].Chengdu:Southwest Jiaotong University,2014.
[5]刘洪涛,徐政,周长春.静止无功补偿器对发电机组次同步振荡特性的影响[J].电网技术,2003,27(1):1-4.LIU Hongtao,XU Zheng,ZHOU Changchun.A study on subsynchronous oscillation of generating set connected to static var compensator[J].Power System Technology,2003,27(1):1-4.
[6]赵欣,高山,张宁宇.SVC接入位置对次同步振荡的影响机理与SVC控制策略研究[J].中国电机工程学报,2013,33(25):107-114.ZHAO Xin,GAO Shan,ZHANG Ningyu.Influence of SVClocation on subsynchronous oscillation and SVC control strategy research[J].Proceedings of the CSEE,2013,33(25):107-114.
[7]谢小荣,王路平,贺静波,等.电力系统次同步谐振/振荡的形态分析[J].电网技术,2017,41(4):1043-1049.XIE Xiaorong,WANG Luping,HE Jingbo,et al.Analysis of subsynchronous resonance/oscillation types in power systems[J].Power System Technology,2017,41(4):1043-1049.
[8]肖湘宁,罗超,廖坤玉.新能源电力系统次同步振荡问题研究综述[J].电工技术学报,2017,32(6):85-97.XIAO Xiangning,LUO Chao,LIAO Kunyu.Review of the research on subsynchronous oscillation issues in electric power system with renewable energy sources[J].Transactions of China Electrotechnical Society,2017,32(6):85-97.
[9]王伟胜,张冲,何国庆,等.大规模风电场并网系统次同步振荡研究综述[J].电网技术,2017,41(4):1050-1060.WANG Weisheng,ZHANG Chong,HE Guoqing,et al.Overview of on subsynchronous oscillations in large scale wind farm integrated system[J].Power System Technology,2017,41(4):1050-1060.
[10]李明节,于钊,许涛,等.新能源并网系统引发的复杂振荡问题及其对策研究[J].电网技术,2017,41(4):1035-1042.LI Mingjie,YU Zhao,XU Tao,et al.Study of complex oscillation caused by renewable energy integration and its solution[J].Power System Technology,2017,41(4):1035-1042.
[11]任普春,石文辉,许晓艳,等.应用SVC提高风电场接入电网的电压稳定性[J].中国电力,2007,40(11):97-101.REN Puchun,SHI Wenhui,XU Xiaoyan,et al.A study of voltage stability improvement by static var compensators in the electric power system including wind farms[J].Electric Power,2007,40(11):97-101.
[12]张超,卢新良,孙心洲.应用SVC提高双馈感应发电机并网的风电场暂态电压稳定性[J].电网与清洁能源,2016,32(10):153-159.ZHANG Chao,LU Xinliang,SUN Xinzhou.Applying SVCto enhance transient voltage stability of wind farms with doubly fed induction generator installations[J].Advances of Power System&Hydroelectric Engineering,2016,32(10):153-159.
[13]姚波,樊艳芳.集群风电区域振荡原因分析及对策研究[J].可再生能源,2015,33(8):1123-1129.YAO Bo,FAN Yanfang.Analysis and countermeasure research on the cause of oscillation in clusters of wind power[J].Renewable Energy Resources,2015,33(8):1123-1129.
[14]崔正湃,王皓靖,马锁明,等.大规模风电汇集系统动态无功补偿装置运行现状及提升措施[J].电网技术,2015,39(7):1873-1878.CUI Zhengpai,WANG Haojing,MA Suoming,et al.Operation situation analysis and improvement measure study for dynamic reactive compensation equipment applied in largescale wind power systems[J].Power System Technology,2015,39(7):1873-1878.
[15]刘京波,崔正湃,吴宇辉,等.大规模风电汇集系统动态无功补偿装置性能测试及改进措施探讨[J].中国电力,2016,49(12):139-143.LIU Jingbo,CUI Zhengpai,WU Yuhui,et al.Technical performance test and improvement measure study for dynamic reactive compensation devices applied in large-scale wind power system[J].Electric Power,2016,49(12):139-143.
[16]谢小荣,刘华坤,贺静波,等.直驱风机风电场与交流电网相互作用引发次同步振荡的机理与特性分析[J].中国电机工程学报,2016,36(9):2366-2372.XIE Xiaorong,LIU Huakun,HE Jingbo,et al.Mechanism and characteristics of subsynchronous oscillation caused by the iteraction between full-converter wind turbines and ACsystems[J].Proceedings of the CSEE,2016,36(9):2366-2372.
[17]刘隽,李兴源,汤广福.SVC电压控制与阻尼调节间的相互作用机理[J].中国电机工程学报,2008,28(1):12-17.LIU Jun,LI Xingyuan,TANG Guangfu.Interrelations between SVC voltage control and damping control[J].Proceedings of the CSEE,2008,28(1):12-17.
[18]迟永宁,田新首,汤海雁,等.双馈风电机组与静止无功发生器交互作用原理及系统振荡特性研究[J].电网技术,2017,41(2):486-492.CHI Yongning,TIAN Xinshou,TANG Haiyan,et al.Interactions between DFIGs and SVG and oscillation characteristics of power grid connected wind turbines[J].Power System Technology,2017,41(2):486-492.
[19]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.Research on fault ride through for wind power system in the terminal of the power grid system[J].High Voltage Apparatus,2017,53(1):192-196.
[20]张建军.谐波电压传递特性分析研究[J].高压电器,2016,52(10):130-134.ZHANG Jianjun.Study of transfer characteristics of harmonic voltage[J].High Voltage Apparatus,2016,52(10):130-134.
[21]乔和,关紫微,颜廷武,等.SVG的自适应控制方法研究[J].高压电器,2017,53(1):169-174.QIAO He,GUAN Ziwei,YAN Tingwu,et al.Research on the adaptive control method of SVG[J].High Voltage Apparatus,2017,53(1):169-174.
[22]常喜强,赵明君,梁静,等.基于风电仿真模型等值的相关讨论[J].四川电力技术,2014(4):31-35.CHANG Xiqiang,ZHAO Mingjun,LIANG Jing,et al.Based on the equivalence of wind power simulation model[J].Sichuan Electric Power Technology,2014(4):31-35.
[23]陈帆,赵婉雯.特高压直流无功控制电压选择优化研究[J].高压电器,2016,52(11):29-33.CHEN Fan,ZHAO Wanwen.Optimization of voltage selection for UHVDC reactive power control[J].High Voltage Apparatus,2016,52(11):29-33.
[24]乔和,关紫微,王孟男,等.不平衡电压和闪变下静止无功发生器的鲁棒稳定性研究[J].高压电器,2017,53(4):144-149.QIAO He,GUAN Ziwei,WANG Mengnan,et al.Research on robust stability for SVG under the unbalance voltage and flicker conditions[J].High Voltage Appa-ratus,2017,53(4):144-149.
[25]刘兴杰,田建设,丁波,等.应用MATLAB进行电力系统分析和动态仿真[J].电力自动化设备,2004,24(3):43-45.LIU Xingjie,TIAN Jianshe,DING Bo,et al.Power system analysis and simulation with MATLAB[J].Electric Power Automation Equipment,2004,24(3):43-45.