电机伺服控制PDF策略频域设计方法优化

对PDF策略运用于电机伺服控制频域设计方法进行了研究,以一个实际应用为研究对象,通过系统设计和仿真分析比较,表面通用PDF策略频域设计公式应用在电机伺服控制中仍不能获得最优的效果。针对该问题,通过将时域PDF设计方法与此频域PDF设计方法结合起来,基于特征根结构理论的能量量化法,得到最大能量输入限制约束条件,提出一优化方法。通过系统仿真,得出了更良好的频域设计及控制结果。该结果表明此优化方法对于基于PDF控制策略电机伺服控制的最优频域设计方法探索和提高控制系统频域性能的设计具有一定参考价值。

Method Optimization on Frequency Domain Design Based on PDF Control Strategy for Servo Motor Control

The universal frequency-domain design methods based on PDF strategy can't get optimal result when applied to servo motor control system by the simulation result,because the PDF control system is established on highly simplified system model.To get a better outcome,the PDF design methods in time domain and PDF frequency domain are combined.Through the energy quantization method based on characteristic root structure theory,the limitation of the system maximum output energy is contained into the system.By emulating the optimized control system,a more suitable result is obtained.The result indicates that this optimization method has some guidance value for both the exploring of optimal frequency-domain design method and the design of improving control system's frequency-domain performance.