变速恒频双馈风力发电空载并网实验研究
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摘要
目的研究变速恒频双馈风力发电系统的空载并网结构。方法在同步旋转坐标系下建立双馈电机空载数学模型,运用矢量控制得出空载并网策略及其结构图。结果在自行搭建的10kW双馈风力发电模拟平台上进行控制策略的验证。结论空载并网过程控制简单,过渡平稳,定、转子电流冲击小,是一种适合在风电现场使用的理想并网方式。
Purposes—To study the no-load cutting-in structure of variable-speed constant-frequency doubly fed wind power generator.Methods—The no-load mathematical model of doubly-fed induction generator is established in the synchronous rotating reference frame,vector control is applied to get the strategy and structure diagram of the no-load cutting-in.Results—The control strategy is verified on the 10 kW doubly-fed wind power simulation platform.Conclusions—The results show that the no-load cutting-in control process is simple,the transition is smooth and the current impact of the stator and rotor is small,so it is a relatively ideal cutting-in way in the field of the wind power.
Purposes—To study the no-load cutting-in structure of variable-speed constant-frequency doubly fed wind power generator.Methods—The no-load mathematical model of doubly-fed induction generator is established in the synchronous rotating reference frame,vector control is applied to get the strategy and structure diagram of the no-load cutting-in.Results—The control strategy is verified on the 10 kW doubly-fed wind power simulation platform.Conclusions—The results show that the no-load cutting-in control process is simple,the transition is smooth and the current impact of the stator and rotor is small,so it is a relatively ideal cutting-in way in the field of the wind power.
引文
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[6]刘其辉,贺益康,卞松江.变速恒频风力发电机空载并网控制[J].中国电机工程学报,2004,24(3):6-11.
[7]王君瑞,吉炫玮,张晋宁,等.双馈风力发电系统空载比例谐振并网控制[J].电力电子技术,2017,51(4):43-45.
[8]吕艳玲,冯曦,朱博,等.双馈风力发电机BP神经网络并网策略研究[J].哈尔滨理工大学学报,2017,22(5):40-45.
[9]郑雪梅,郭玲,徐殿国,等.双馈感应发电机空载并网的高阶滑模控制策略[J].电力系统自动化,2012,36(7):12-16.
[2]YANG Shu-ying,ZHOU Tian-bao,SUN Dengyue,et al.A SCR crowbar commutated with power converter for DFIG-based wind turbines[J].International Journal of Electrical Power&Energy Systems,2016,81:87-103.
[3]SWAIN S,RAY P K.Short circuit fault analysis in agrid connected DFIG based wind energy system with active crowbar protection circuit for ridethrough capability and power quality improvement[J].International Journal of Electrical Power&Energy Systems,2017,84:64-75.
[4]MOHAMMADI J,AFSHARNIA S,VAEZ-ZADEH S.Efficient fault-ride-through control strategy of DFIG-based wind turbines during the grid faults[J].Energy Conversion and Management,2014,78:88-95.
[5]张文娟,高勇.引入比例-谐振控制器的双馈风电机组空载并网控制[J].电力系统自动化,2011,35(18):25-30,35.
[6]刘其辉,贺益康,卞松江.变速恒频风力发电机空载并网控制[J].中国电机工程学报,2004,24(3):6-11.
[7]王君瑞,吉炫玮,张晋宁,等.双馈风力发电系统空载比例谐振并网控制[J].电力电子技术,2017,51(4):43-45.
[8]吕艳玲,冯曦,朱博,等.双馈风力发电机BP神经网络并网策略研究[J].哈尔滨理工大学学报,2017,22(5):40-45.
[9]郑雪梅,郭玲,徐殿国,等.双馈感应发电机空载并网的高阶滑模控制策略[J].电力系统自动化,2012,36(7):12-16.