摘要
根据伺服系统的特点,采用模型参考自适应的广义时变系统控制策略,利用控制系统响应特性以一定的规律自动调整调节器的PID参数,当工况、干扰或负载改变时,通过给定值扰动可得到对象输出波形,由波形辨识器获得特征参数向量,然后由专家系统求得PID调节器参数更新值,使可调系统的输出响应波形逐步趋于理想的响应波形。模拟结果表明,该系统输出能够快速、平稳而又准确地跟踪输入位置变化,抗扰能力强。
According to the characteristics of the servo system,and based on the control strategy of generalized time varying systems（4695） of model reference adaptive,a method was realized to adjust parameters of PID controller automatically.As the condition,disturbing,loads changed,the output waveform could be obtained according to the disturbance of the given value.Therefore the vector of characteristic parameters was got by the waveform identification device,and the parameters of PID controller could be updated through expert system,and the output response waveform of adjustable system was tending to ideal waveform.Simulation results show that the output can follow the input position change rapidly,steadily and accurately,and it has strong anti-interference ability as well.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2011年第3期200-204,共5页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家自然科学基金资助项目(60774069)
湖南省自科基金资助项目(07JJ3118)
关键词
混合式步进电机
自适应调节器
广义时变系统
辨识模型
hybrid motors
self-adaptive regulator
generalized time-varying system
identification models
