基于自适应反推控制的无传感器PMSG闭环I/f控制
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摘要
针对机械弹性储能系统动力源扭矩变化特性,提出一种无传感器永磁同步发电机(PMSG)闭环I/f反推自适应控制策略。建立机械弹性储能系统的数学模型和定子电流矢量定向下的PMSG数学模型,在分析PMSG开环I/f控制不足的基础上,提出基于自适应反推控制的I/f闭环控制方法,通过转速和电流闭环使定子电流定向的dq轴和以电机转子定向的dq轴之间的转角恒定。仿真结果表明,能够抑制转速波动,I/f控制的"转角-自平衡"特性使系统无须加装速度传感器,能够防止启动阶段过流,构建的定子电阻和电感自适应律可以准确辨识PMSG定子电阻和电感,提高了控制的鲁棒性。
A novel strategy applied closed-loop adaptive back-stepping control to permanent magnet synchronous generator(PMSG) is proposed targeting the problem of the modification of torque for mechanical elastic energy storage(MEES) system utilizing PSMG as power source. This paper establishes the mathematical model of MEES system and PMSG, and presents the closed-loop adaptive backstepping control which makes the angle between the dq axis oriented by the current of stator and the dq axis oriented by the rotor a constant value via the speed and current closed-loop based on the analysis of open-loop I/f control. The closed-loop adaptive back-stepping control can suppress the speed fluctuation, sensorless, overcurrent and improve the PMSG robustness by identifying the stator resistance and inductance of generator. The ideal control result can be proved in the state of startup and steady operation of PMSG.
A novel strategy applied closed-loop adaptive back-stepping control to permanent magnet synchronous generator(PMSG) is proposed targeting the problem of the modification of torque for mechanical elastic energy storage(MEES) system utilizing PSMG as power source. This paper establishes the mathematical model of MEES system and PMSG, and presents the closed-loop adaptive backstepping control which makes the angle between the dq axis oriented by the current of stator and the dq axis oriented by the rotor a constant value via the speed and current closed-loop based on the analysis of open-loop I/f control. The closed-loop adaptive back-stepping control can suppress the speed fluctuation, sensorless, overcurrent and improve the PMSG robustness by identifying the stator resistance and inductance of generator. The ideal control result can be proved in the state of startup and steady operation of PMSG.
引文
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[16]张耀中,黄进,康敏.永磁同步电机无传感器控制及其启动策略[J].电机与控制学报,2015,19(10):1-6.ZHANG Yao-zhong,HUANG Jin,KANG Min.Sensorless control and start-up strategy of permanent magnet synchronous motor[J].Electric Machines and Control,2015,19(10):1-6.
[2]徐以坤.永磁电机式机械弹性储能机组储能箱优化设计与并网控制[D].保定:华北电力大学(保定),2015.Xu Yikun.Optimal Design of Energy Storage Box for Mechanical Elastic Energy Storage Unit Served by Permanent Magnet Synchronous Motor and Its Grid-Connected Control[D].Baoding,China:North China Electric Power University,2015.
[3]米增强,郭旭东,余洋.基于参数辨识及L2增益的PMSG反步控制策略研究[J].系统仿真学报,2017,29(1):45-48.Mi Zengqiang,Guo Xudong,Yu Yang.Parameter Identification and L2 Gain Based Backstepping Control Strategy for PMSG[J].Journal of System Simulation,2017,29(1):45-48.
[4]卞延庆,庄海,张颖杰.基于模糊PI的永磁同步电机矢量控制研究[J].微电机,2015,48(11):62-66,93.Bian Yanqing,Zhuang Hai,Zhang Yingjie.Study on Permanent Magnet Synchronous Motor Vector Control Based on Fussy PI[J].Micromotors,2015,48(11):62-66,93.
[5]刘颖,周波,方斯琛.基于新型扰动观测器的永磁同步电机滑模控制[J].中国电机工程学报,2010,30(9):80-85.LIU Ying,ZHOU Bo,FANG Si-chen.Sliding Mode Control of PMSM Based on a Novel Disturbance Observer[J].Proceedings of the CSEE,2010,30(9):80-85.
[6]张兴华.永磁同步电机的模型参考自适应反步控制[J].控制与决策,2008,23(3):341-345.ZHANG Xing-hua.Model reference adaptive backstepping control of permanent magnet synchronous motors.2008,23(3):341-345.
[7]王萌,杨家强,张翔,等.一种表贴式永磁同步电机电流矢量闭环I/f控制方法[J].中国电机工程学报,2015,35(10):2513-2521.WANG Meng,YANG Jiaqiang,ZHANG Xiang,et al.An I/f Control Method With Closed-loop Regulation of Current Vector for Surface Permanent Magnet Synchronous Motor Drives[J].Proceedings of the CSEE,2015,35(10):2513-2521.
[8]Raca D,Harke M C,Lorenz R D.Robust Magnet Polarity Estimation for Initialization of PMsynchronous machines with near-zero saliency[J].IEEE Transactions on Industry Applications(S1350-2352),2008,44(4):1199-1209.
[9]Jang J H,Sul S K,Ha J I,et al.Sensorless drive of surface mounted permanent magnet motor by high frequency signal injection based on magnetic saliency[J].IEEE Transactions on Industry Applications(S1877-7058),2003,39(4):1031-1039.
[10]Young-Doo Y,Seung-Ki S,Morimoto S,et al.High-bandwidth sensorless algorithm for AC machines based on square-wave-type voltage injection[J].IEEETransactions on Industry Applications(S9843-2354),2011,47(3):1361-1370.
[11]Hoque M A,Rahman M A.Speed and Position Sensorless Permanent Magnet Synchronous Motor Drives[C].Windsor,ON,Canada:Canadian Conference on Electrical and Computer Engineering,1994,2:689-692.
[12]Wu R,Slemon G R.A Permanent Magnet Mot or Drive Without a Shaft Sensor[C].Portland,OR,United States:IEEE Industry Applications Society Annual Meeting,1990,1:553-558.
[13]Huang M C,Moses A J,Anayi F,et al.Linear Kalman Filter(LKF)Sensorless Control f or Permanent Magnet Synchronous Mot or Based on Orthogonal Output Linear Model[C].Bologna,Italy:International Symposium on Power Electronics,Electrical Drives,Automation and Motion,SPEEDAM.2011:79.
[14]Andreescu G D.Position and Speed Sensorless Control of PMSM Drives Based on Adaptive Observer[C].Boston,MA,USA:EPEProc.1999,CD-ROM,2006:1381-1386.
[15]Li Changsheng,Elbuluk M.A Sliding Mode 10(65):1-6Observer for Sensorless Control of Permanent Magnet Synchronous Motors[C].Chicago,IL,USA:Conference of the 36th Industry Applications Conference,IAS,2001,2:1273-1278.
[16]张耀中,黄进,康敏.永磁同步电机无传感器控制及其启动策略[J].电机与控制学报,2015,19(10):1-6.ZHANG Yao-zhong,HUANG Jin,KANG Min.Sensorless control and start-up strategy of permanent magnet synchronous motor[J].Electric Machines and Control,2015,19(10):1-6.