基于Crowbar保护的三相短路电流的DFIG参数辨识方法
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摘要
双馈风力发电机(DFIG)作为风电机组的核心部件,其准确的模型参数对于含风电电力系统的动态安全分析与控制至关重要。提出了一种在风机端口三相短路故障下,利用计及Crowbar保护动作的风机短路电流辨识DFIG参数的方法。在DFIG传统三相短路电流解析模型的基础上,考虑定转子磁链之间的耦合以及Crowbar电阻对故障暂态过程的影响,提出了一种计及Crowbar保护的DFIG三相短路电流解析式。采用轨迹灵敏度法分析DFIG参数的可辨识性以及辨识难易度。基于Matlab/simulink仿真平台搭建DFIG风电场模型获取短路电流数据,采用自适应变异粒子群(AMPSO)算法辨识DFIG模型参数,并对辨识结果进行误差分析,仿真结果验证了所提方法的正确性。
Doubly-fed induction generator(DFIG)is the core component of wind turbine,its accurate mode parameters are essential for dynamic safety analysis and control of wind power systems.A method is proposed to identify the DFIG parameters by using the shortcircuit current considering Crowbar protection under the three-phase short-circuit fault of the wind turbine port.Based on the DFIG traditional three-phase short circuit current analysis model,considering the coupling between stator and rotor flux and the influence of Crowbar resistance on the fault transient process,a DFIG three-phase short circuit current analytical formula considering Crowbar protection is proposed.Trajectory sensitivity method is used to analyze the identifiability and difficulty of DFIG parameters.The shortcircuit current data obtained from the Matlab/Simulink wind farm model are used to identify the DFIG parameters by the adaptive variable particle swarm(AMPSO)optimization algorithm,and the error analysis of the identification results is carried out to verify the correctness of the proposed method.
Doubly-fed induction generator(DFIG)is the core component of wind turbine,its accurate mode parameters are essential for dynamic safety analysis and control of wind power systems.A method is proposed to identify the DFIG parameters by using the shortcircuit current considering Crowbar protection under the three-phase short-circuit fault of the wind turbine port.Based on the DFIG traditional three-phase short circuit current analysis model,considering the coupling between stator and rotor flux and the influence of Crowbar resistance on the fault transient process,a DFIG three-phase short circuit current analytical formula considering Crowbar protection is proposed.Trajectory sensitivity method is used to analyze the identifiability and difficulty of DFIG parameters.The shortcircuit current data obtained from the Matlab/Simulink wind farm model are used to identify the DFIG parameters by the adaptive variable particle swarm(AMPSO)optimization algorithm,and the error analysis of the identification results is carried out to verify the correctness of the proposed method.
引文
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[14]王皓怀,陈懿,王坚,等.电压跌落故障下的双馈型风力发电机动态响应特性分析[J].智慧电力,2017,45(9):14-19+25.WANG Haohuai,CHEN Yi,WANG Jian,et al.Study on dynamic response characteristics of DFIG-based wind turbines under grid voltage drop[J].Smart Power,2017,45(9):14-19+25.
[15]石一辉,鲁宗相,闵勇,等.双馈感应发电机三相短路电流解析计算模型[J].电力系统自动化,2011,35(8):38-43.SHI Yihui,LU Zongxiang,MIN Yong,et al.Practical calculation model of three-phase short-circuit current for doubly-fed induction gene rator[J].Automat ion of Electric Power Systems,2011,35(8):38-43.
[16]贾俊川,刘晋,张一工.电网电压故障时双馈异步发电机定子磁链的动态特性研究[J].中国电机工程学报,2011(3):90-96.JIA Junchuan,LIU Jin,ZHANG Yigong.Dynamic characteristics of stator flux of doubly-fed induction generator during grid voltage fault[J].Proceedings of the CSEE,2011,31(3):90-96.
[17]潘文霞,杨刚,刘明洋,等.考虑Crowbar电阻的双馈电机短路电流计算[J].中国电机工程学报,2016,36(13):3629-3634.PAN Wenxia,YANG Gang,LIU Mingyang,et al.Calculation of short-circuit current of DFIG with the considering of crowbar resistance[J].Proceedings of the CSEE,2016,36(13):3629-3634.
[18]付元欢,李银红,何璇,等.电网故障下计及撬棒保护的双馈感应发电机暂态解析修正模型[J].中国电机工程学报,2017,37(16):4591-4600.FU Yuanhuan,LI Yinhong,HE Xuan,et al.Corrected transient analysis model of doubly fed induction generator with crowbar protection under grid fault[J].Proceedings of the CSEE,2017,37(16):4591-4600.
[19]鞠平.电力系统建模理论与方法[M].科学出版社,2010:6-46.
[20]郁磊,史峰,王辉,等.MATLAB智能算法30个案例分析[M].北京:北京航空航天大学出版社,2010:130-156.
[2]李生民,贾铎,肖亚敏.采用新型动态撬棒的DFIG低高电压连锁故障穿越技术研究[J].电力系统保护与控制,2018,46(14):79-86.LI Shengmin,JIA Duo,XIAO Yam in.Low-high voltage chain fault ride-through technology of DFIG with active crowbar[J].Power System Protection and Control,201 8,46(14):79-86.
[3]潘学萍,高远,金宇清,等.风电机组驱动系统参数辨识[J].电网技术,2013,37(7):1990-1994.PAN Xueping,GAO Yuan,JIN Yuqing,et al.Parameter identification of drive system for fixed-speed wind power generation units[J].Power System Technology,2013,37(7):1990-1994.
[4]魏巍,史林军,赫卫国,等.含STATCOM的风电场级多PI控制器参数优化[J].广东电力,2018,31(9):62-69.WEI Wei,SHI Linjun,HE Weiguo,et al.Optimization on parameters of multi-PI controller of wind farm with STATCOM[J].Gangdong Electric Power,201 8,31(9):62-69.
[5]金宇清,鞠平,刘伟航,等.基于量测信号扰动的DFIG变流器控制参数辨识方法[J].电力系统自动化,2016,40(8):36-42.JIN Yuqing,JU Ping,LIU Weihang,et al.Parameter identification method for converter controller of DFIG based on measurement signal disturbance[J].Automation of Electric Power System,2016,40(8):36-42.
[6]金宇清,赵泽,鞠平,等.双馈感应风力发电机的参数辨识分析[J].高电压技术,2011,37(7):1700-1705.JIN Yuqing,ZHAO Ze,JU Ping,et al.Analysis on the identification of doubly fed induction generator[J].High Voltage Engineering,2011,37(7):1700-1 705.
[7]张建华,辛付龙,陈星莺,等.双馈风力发电机三相短路状态下的参数辨识[J].电力自动化设备,2012,32(6):86-89.ZHANG Jianhua,XIN Fulong,CHEN Xingying,et al.Parameter identification of DFIG with three-phase short circuit[J].Electric Power Automation Equipment,2012,32(6):86-89.
[8]潘学萍,鞠平,徐倩,等.双馈风力发电机参数分步辨识及观测量的选择[J].中国电机工程学报,2013,33(13):116-126.PAN Xueping,JU Ping,XU Qian,et al.A two-step method for estimating DFIG parameters i n wind turbine and the measurement selection[J].Proceedings of the CSEE,2013,33(13):116-126.
[9]潘学萍,殷紫吟,鞠平,等.基于短路电流辨识双馈感应发电机的模型参数[J].电力自动化设备,2017,37(11):27-31.PAN Xueping,YIN Ziyin,JU Ping,et al.Model parameter identification of DFIG based on short circuit current[J].Electric Power Automation Equipment,2017,37(11):27-31.
[10]郭家圣,刘汉江.考虑电压分布的风电场短路电流计算方法[J].广东电力,2017,30(12):55-61.GUO Jiasheng,LIU Hanjiang.Calculation method for wind power field short-circuit current considering voltage distribution[J].Gaungdong Electric Power,2017,30(12):55-61.
[11]周士琼,王倩,吕潇,等.定子Crowbar电路模式切换的双馈风力发电机组低电压穿越控制策略[J].电力系统保护与控制,2017,45(4):33-39.ZHOU Shiqiong,WANG Qian,LV Xiao,et al.Control strategy of low voltage ride-through for double-fed wind generator with the stator Crowbar circuit mode switch[J].Power System Protection and Control,2017,45(4):33-39.
[12]MORREN J,HAAN S W H D.Short-circuit current of wind turbines with doubly fed induction generator[J].IEEE Transactions on Energy Conversion,2007,22(1):174-1 80.
[13]SULLA F,SVENSSON J,SAMUELSSON O.Symmetrical and unsymmetrical short-circuit current of squirrel-cage and doubly-fed induction generators[J].Electric Power Systems Research,201 1,81(7):1610-1618.
[14]王皓怀,陈懿,王坚,等.电压跌落故障下的双馈型风力发电机动态响应特性分析[J].智慧电力,2017,45(9):14-19+25.WANG Haohuai,CHEN Yi,WANG Jian,et al.Study on dynamic response characteristics of DFIG-based wind turbines under grid voltage drop[J].Smart Power,2017,45(9):14-19+25.
[15]石一辉,鲁宗相,闵勇,等.双馈感应发电机三相短路电流解析计算模型[J].电力系统自动化,2011,35(8):38-43.SHI Yihui,LU Zongxiang,MIN Yong,et al.Practical calculation model of three-phase short-circuit current for doubly-fed induction gene rator[J].Automat ion of Electric Power Systems,2011,35(8):38-43.
[16]贾俊川,刘晋,张一工.电网电压故障时双馈异步发电机定子磁链的动态特性研究[J].中国电机工程学报,2011(3):90-96.JIA Junchuan,LIU Jin,ZHANG Yigong.Dynamic characteristics of stator flux of doubly-fed induction generator during grid voltage fault[J].Proceedings of the CSEE,2011,31(3):90-96.
[17]潘文霞,杨刚,刘明洋,等.考虑Crowbar电阻的双馈电机短路电流计算[J].中国电机工程学报,2016,36(13):3629-3634.PAN Wenxia,YANG Gang,LIU Mingyang,et al.Calculation of short-circuit current of DFIG with the considering of crowbar resistance[J].Proceedings of the CSEE,2016,36(13):3629-3634.
[18]付元欢,李银红,何璇,等.电网故障下计及撬棒保护的双馈感应发电机暂态解析修正模型[J].中国电机工程学报,2017,37(16):4591-4600.FU Yuanhuan,LI Yinhong,HE Xuan,et al.Corrected transient analysis model of doubly fed induction generator with crowbar protection under grid fault[J].Proceedings of the CSEE,2017,37(16):4591-4600.
[19]鞠平.电力系统建模理论与方法[M].科学出版社,2010:6-46.
[20]郁磊,史峰,王辉,等.MATLAB智能算法30个案例分析[M].北京:北京航空航天大学出版社,2010:130-156.