论文部分内容阅读
在转台频响伺服中,针对低频和低速时干扰难补偿、高频时相位滞后和幅值衰减程度急剧恶化、常规控制策略严重依赖精确对象模型等难题,引入不依赖精确对象模型的自抗扰控制技术,并设计了控制系统.控制系统中,自抗扰控制器用来在线观测补偿干扰,前置处理单元用来补偿相位和幅值.控制系统应用到转台频响伺服中,实测得到的“双十”标准下最大跟踪频率和扫频频率都大于转台出厂时的验收指标.实测结果表明:自抗扰控制技术应用到转台频响伺服中可以有效提升转台的频响性能.
In turntable frequency response servo, it is difficult to compensate for the interference at low frequency and low speed, the phase lag and amplitude attenuation in high frequency deteriorate rapidly, and the conventional control strategy relies heavily on the exact object model. Control technology, and the design of the control system.In the control system, the ADRC controller is used to observe the compensation disturbance online, the pre-processing unit is used to compensate the phase and amplitude.The control system is applied to the turntable frequency response servo, the measured The maximum tracking frequency and sweeping frequency under the “double 10” standard are both greater than the acceptance criteria when the turntable is shipped from the factory.The measured results show that the application of ADRC in turntable frequency response servo can effectively enhance the frequency response performance of turntable.