安中全;任永峰;李含善;

• 1:内蒙古工业大学

摘要(Abstract)：

双馈式风电机组已成为风电领域应用最为广泛的一种主流机型。推导了双馈电机在发电机惯例下的动态数学模型,用内模控制实现双馈电机转子电流内环和转速外环的控制,提出了基于内模控制的柔性并网运行控制策略,应用PSCAD/EMTDC建立了完备的2 MW并网运行双馈式风力发电系统仿真模型,对风速突变时系统柔性并网响应特性进行了细致的仿真研究。研究结果表明,建立的双馈式风电系统模型控制性能和动态响应速度均较好,提出的控制策略能快速地控制发电机的定子电压满足并网条件。通过风速突变工况仿真模拟可以看出,该系统实现了双馈式风电系统在变风速条件下的柔性并网。仿真结果与理论分析相一致,验证了仿真模型的正确性。

关键词(KeyWords)： 双馈感应电机;柔性并网;内模控制;PSCAD;风力发电;建模

Abstract:

Keywords:

基金项目(Foundation): 教育部科学技术研究重点项目(210037);; 内蒙古自然科学博士基金项目(2011BS0903);; 内蒙古自然科学基金重大项目(200711020801)~~

作者(Author): 安中全;任永峰;李含善;

Email:

DOI: 10.13335/j.1000-3673.pst.2011.12.035

参考文献(References)：

• [1]Chen S,Cheung N,Wong K,et al.Grid synchronization of doubly-fed induction generator using integral variable structure control[J].IEEE Transactions on Energy Conversion,2009,24(4):875-883.
• [2]Kayikci M,Milanovi?J.Reactive power control strategies for DFIG-based plants[J].IEEE Transactions on Energy Conversion,2007,22(2):389-396.
• [3]Xu L,Cartwright P.Direct active and reactive power control of DFIG for wind energy generation[J].IEEE Transactions on Energy Conversion,2006,21(3):750-758.
• [4]郎永强,徐殿国,Hadianmrei S R,等.交流励磁双馈电机分段并网控制策略[J].中国电机工程学报,2006,26(19):133-138.Lang Yongqiang,Xu Dianguo,Hadianmrei S R,et al.Stagewise control of connecting AC excited doubly-fed induction generator to the grid[J].Proceedings of the CSEE,2006,26(19):133-138(in Chinese).
• [5]Xu L,Wang Y.Dynamic modeling and control of DFIG-based wind turbines under unbalanced network conditions[J].IEEE Transactions on Power Systems,2007,22(1):314-323.
• [6]López J,Sanchis P,Roboam X,et al.Dynamic behavior of the doubly fed induction generator during three-phase voltage dips[J].IEEE Transactions on Energy Conversion,2007,22(3):709-717.
• [7]Mei F,Pal B.Model analysis of grid-connected doubly fed induction generators[J].IEEE Transactions on Energy Conversion,2007,22(3):728-736.
• [8]Jiao L,Ooi B,Joos G,et al.Doubly fed induction generator(DFIG)as a hybrid of asynchronous and synchronous machines[J].Electric Power Systems Research,2005,76(1):33-37.
• [9]Ekanayake J B,Holdsworth L,Jenkins N.Comparison of 5th order and 3rd order machine models for doubly fed induction generator(DFIG)wind turbines[J].Electric Power Systems Research,2003,67(3):207-215.
• [10]Lei Y,Mullane A,Lightbody G.Modeling of the wind turbine with a doubly fed induction generator for grid integration studies[J].IEEE Transactions on Energy Conversion,2006,21(1):257-264.
• [11]徐大平,肖运启,秦涛,等.变桨距型双馈风电机组并网控制及建模仿真[J].电网技术,2008,32(6):100-105.Xu Daping,Xiao Yunqi,Qin Tao,et al.Cutting-in control of variable-pitch doubly-fed wind power generation system and its modeling and simulation[J].Power System Technology,2008,32(6):100-105(in Chinese).
• [12]苑国锋,李永东,柴建云,等.1.5MW变速恒频双馈风力发电机组励磁控制系统试验研究[J].电工技术学报,2009,24(2):42-47.Yuan Guofeng,Li Yongdong,Chai Jianyun,et al.Experimental investigation on excitation control system of 1.5MW variable speed constant frequency DFIG wind generator system[J].Transactions of China Electrotechnical Society,2009,24(2):42-47(in Chinese).
• [13]丁明,李宾宾,韩平平.双馈风电机组运行方式对系统电压稳定性的影响[J].电网技术,2010,34(10):26-31.Ding Ming,Li Binbin,Han Pingping.Impacts of operation modes of doubly-fed wind turbine generator on system voltage stability[J].Power System Technology,2010,34(10):26-31(in Chinese).
• [14]刘其辉,贺益康,张建华.交流励磁变速恒频风力发电机并网控制策略[J].电力系统自动化,2006,30(3):51-55.Liu Qihui,He Yikang,Zhang Jianhua.Grid connection control strategy of AC-excited variable-speed constant-frequency wind power generator[J].Automation of Electric Power Systems,2006,30(3):51-55(in Chinese).
• [15]乔嘉赓,鲁宗相,严慧敏,等.双馈感应风力发电机功率控制器的建模与仿真[J].电力系统自动化,2007,31(24):34-37.Qiao Jiageng,Lu Zongxiang,Yan Huimin,et al.Modeling and simulation of power controller for the doubly fed induction generator wind turbines[J].Automation of Electric Power Systems,2007,31(24):34-37(in Chinese).
• [16]刘其辉,贺益康,张建华.并网型交流励磁变速恒频风力发电系统控制研究[J].中国电机工程学报,2006,26(23):109-114.Liu Qihui,He Yikang,Zhang Jianhua.Investigation of control for AC-exited VSCF wind power generation system connected to grid[J].Proceedings of the CSEE,2006,26(23):109-114(in Chinese).
• [17]Harnefors L,Nee H.Model-based current control of AC machines using the internal model control method[J].IEEE Transactions on Industry Applications,1998,34(1):133-141.