三角形接法的异步电机模拟风力机控制
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摘要
针对绕组三角形连接的异步电机提出了风力机模拟控制策略,将异步电机连接减速齿轮箱模拟风力机,并使其与新型双转子风力发电机相连,配合实现了双转子电机的最大功率跟踪控制。由于目前文献中对异步电机采用空间矢量脉宽调制(SVPWM)时默认其绕组为星形连接,而星形连接和三角形连接时调制算法并不一样,因此对三角形连接的异步电机推导了其SVPWM调制算法。为了验证提出的风力机模拟控制策略的有效性,搭建了风力机模拟实验平台,实验结果表明了在风速随机快速变化时风力机模拟效果良好,且与之相连的新型双转子风力发电机能实现最大功率跟踪控制策略,故满足了实验室验证风电控制策略的要求。
The wind turbine imitation control strategy was proposed aiming at the Delta-connected asynchronous machine. The asynchronous machine with a reduction gearbox was adopted to imitate the wind turbine,then the novel dual-rotor generator was connected and controlled to realize the maximum power point tracking( MPPT). The existing literature which defaults the windings of the asynchronous machine are star-connected when the space vector pulse wide modulation( SVPWM) strategy is adopted. However,the modulation algorithm of the SVPWM is different when windings with the star-connected and the delta-connected. Thus,the algorithm of the SVPWM for the asynchronous machine with the delta-connected windings is deducted. The experimental platform was built to verify the effectiveness of the proposed wind turbine imitation control. The experimental results show that the wind turbine imitation has a good effect even when the wind speed varies quickly and randomly. Besides,the connected dual-rotor generator can realize the MPPT control which indicates that the proposed wind turbine imitation control can meet the requirements of the laboratory for the wind control strategies verification.
The wind turbine imitation control strategy was proposed aiming at the Delta-connected asynchronous machine. The asynchronous machine with a reduction gearbox was adopted to imitate the wind turbine,then the novel dual-rotor generator was connected and controlled to realize the maximum power point tracking( MPPT). The existing literature which defaults the windings of the asynchronous machine are star-connected when the space vector pulse wide modulation( SVPWM) strategy is adopted. However,the modulation algorithm of the SVPWM is different when windings with the star-connected and the delta-connected. Thus,the algorithm of the SVPWM for the asynchronous machine with the delta-connected windings is deducted. The experimental platform was built to verify the effectiveness of the proposed wind turbine imitation control. The experimental results show that the wind turbine imitation has a good effect even when the wind speed varies quickly and randomly. Besides,the connected dual-rotor generator can realize the MPPT control which indicates that the proposed wind turbine imitation control can meet the requirements of the laboratory for the wind control strategies verification.
引文
[1]王前双,胡育文,黄文新.风力机模拟技术综述[J].电机与控制应用,2010,37(3):1.WANG Qianshuang,HU Yuwen,HUANG Wenxin. Review on the technology of wind turbine emulation[J]. Electric Machines&Control Application,2010,37(3):1.
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[4]姚春光,潘卫明,徐殿国,等.基于鼠笼式异步电机的风力机模拟实验平台研究[J].电力电子技术,2010,44(6):23.YAO Chunguang,PAN Weiming,XU Dianguo,et al. Development of experimental platform for wind power generation using induction machine[J]. Power Electronics,2010,44(6):23.
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[6] ILIOUDIS C Vasilios,MARGARIS I Nikolaos. A novel SVPWM overmodulation technique based on voltage correcting function[C]//proceedings of IEEE Power Electronics for Distributed Generation Systems, June 25-28, 2012, Aalborg, Denmark.2012:682.
[7]吴晓新,柳巍,阮毅,等.一种SVPWM过调制算法及其在两电平逆变器中的应用[J].电机与控制学报,2015,19(1):78.WU Xiaoxin,LIU Wei,RUAN Yi,et al. SVPWM over-modulation algorithm and its application in two-level inverter[J]. Electric Machines and Control,2015,19(1):78.
[8]朱瑛,程明,花为,等.磁通切换永磁电机的空间矢量脉宽调制控制[J].电机与控制学报,2010,14(3):45.ZHU Ying,CHENG Ming,HUA Wei,et al. Space-vector PWM control of flux-switching permanent magnet motor[J]. Electric Machines and Control,2010,14(3):45.
[9]吴丽华,高慧芝,刘政,等.一种改进型的SVPWM算法研究[J].电机与控制学报,2013,17(4):57.WU Lihua,GAO Huizhi,LIU Zheng,et al. Study on an improved SVPWM algorithm[J]. Electric Machines and Control,2013,17(4):57.
[10]张春喜,廖文建,王佳子.异步电机SVPWM矢量控制仿真分析[J].电机与控制学报,2008,2(12):160.ZHANG Chunxi,LIAO Wenjian,WANG Jiazi. Simulation analysis in SVPWM vector control for asynchronous motor[J]. Electric Machines and Control,2008,2(12):160.
[11]江飞.两电平牵引逆变器多模式SVPWM算法[D].成都:西南交通大学,2015.
[2]孟岩峰,胡书举,李旭,等.应用于动模试验系统的风电模拟技术研究[J].电工技术学报,2016,31(3):130.MENG Yanfeng,HU Shuju,LI Xu. Research on wind power simulation technology applied to power system dynamic simulation test system[J]. Transactions of China Electrotechnical Society,2016,31(3):130.
[3]王超,黄文新,王前双.基于异步电机的风力机特性模拟[J].电力电子技术,2010,44(6):7.WANG Chao,HUANG Wenxin,WANG Qianshuang. Imitation of the characterisitic of wind turbine[J]. Power Electronics,2010,44(6):7.
[4]姚春光,潘卫明,徐殿国,等.基于鼠笼式异步电机的风力机模拟实验平台研究[J].电力电子技术,2010,44(6):23.YAO Chunguang,PAN Weiming,XU Dianguo,et al. Development of experimental platform for wind power generation using induction machine[J]. Power Electronics,2010,44(6):23.
[5]郭鸿浩,周波,刘颖,等.基于负载转矩观测的风力机动静态特性模拟[J].中国电机工程学报,2013,33(27):145.GUO Honghao,ZHOU Bo,LIU Ying,et al. Staticand dynamic behaviour emulation of wind turbine based on load torque observation[J]. Proceedings of the CSEE,2013,33(27):145.
[6] ILIOUDIS C Vasilios,MARGARIS I Nikolaos. A novel SVPWM overmodulation technique based on voltage correcting function[C]//proceedings of IEEE Power Electronics for Distributed Generation Systems, June 25-28, 2012, Aalborg, Denmark.2012:682.
[7]吴晓新,柳巍,阮毅,等.一种SVPWM过调制算法及其在两电平逆变器中的应用[J].电机与控制学报,2015,19(1):78.WU Xiaoxin,LIU Wei,RUAN Yi,et al. SVPWM over-modulation algorithm and its application in two-level inverter[J]. Electric Machines and Control,2015,19(1):78.
[8]朱瑛,程明,花为,等.磁通切换永磁电机的空间矢量脉宽调制控制[J].电机与控制学报,2010,14(3):45.ZHU Ying,CHENG Ming,HUA Wei,et al. Space-vector PWM control of flux-switching permanent magnet motor[J]. Electric Machines and Control,2010,14(3):45.
[9]吴丽华,高慧芝,刘政,等.一种改进型的SVPWM算法研究[J].电机与控制学报,2013,17(4):57.WU Lihua,GAO Huizhi,LIU Zheng,et al. Study on an improved SVPWM algorithm[J]. Electric Machines and Control,2013,17(4):57.
[10]张春喜,廖文建,王佳子.异步电机SVPWM矢量控制仿真分析[J].电机与控制学报,2008,2(12):160.ZHANG Chunxi,LIAO Wenjian,WANG Jiazi. Simulation analysis in SVPWM vector control for asynchronous motor[J]. Electric Machines and Control,2008,2(12):160.
[11]江飞.两电平牵引逆变器多模式SVPWM算法[D].成都:西南交通大学,2015.