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基于自校正的伺服系统速度控制器 speed controller of servo system based on self-tuning control
ELECTRlCDRIVE2009V01.39No.10 电气传动 2009年第39卷第10期
基于自校正的伺服系统速度控制器
吴国荣,肖曦
(清华大学电机工程与应用电子技术系,北京100084)
摘要:为了提高永磁同步电机伺服系统的速度控制性能,提出一种基于自校正的永磁同步电机速度环
控制器。自校正控制通过采样系统输入输出信息,运用最小二乘法辨识系统参数,然后根据参数辨识的结
果自动校正控制器的参数,保证被控系统达到预期的性能指标。实验结果表明:该控制器与传统的固定
PID控制相比,转速稳态误差和超调量减小,转速也更为平稳,在伺服系统参数发生变化时仍能保持良好的
控制性能。
关键词:永磁同步电机;自校正控制;速度控制器
中图分类号:TM571 文献标识码:A
ControllerofServo Basedon Control
Speed System Self-tuning
WU Xi
Guo—rong.XIA0
(Electrical 100084,China)
EngineeringDepartment,TsinghuaUniversity,Beijing
controllerbasedon methodwas tO
Abstract:Aspeed the control
self—tuning presentedimprovespeed per—
formanceofthePMSMservo and informationis andthe
system.Theinputoutput sampled systemparameters
areidentifiedthe method.Theidentificationresultisusedto ustthe
by least—square adj
automaticallyparame·
tersofthe controllertOassurethecontrolledreachthedesired re—
self-tuning system performance.Experiment
suitsdemonstratethat withtraditionalPIDcontrol,the controlcanreducethe error
compared self—tuning speed
andovershootandreducethefluctuationof the theservo can
speedresponse.Whenparametersvary system
stillmaintain control
goodspeed performance.
controller
Keywords:permanentmagnetsynchronousmotor;self—tuningcontrol;speed
提出了更高的要求。这些系统大
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