基于负载转矩观测器的高动态性能电机控制系统

High Dynamic Performance Control System of Motors Based on Load Torque Observer

针对负载扰动对系统控制性能的影响,文章研究分析了3种形式的负载观测器,并以矢量控制为例,采用基于速度传感器的负载观测器观测的负载转矩作为前馈补偿的控制,减少了负载转矩扰动的影响,提高了系统的控制性能,同时通过仿真和实验验证了负载观测器以及前馈控制策略的有效性。

As for the effect of the control performance of the system by load torque disturbance, it studied and analyzed three types of load observers. Taking the vector control as an example, the load torque observed by load observer based on speed sensor was applied to control feed-forward compensation, so that the influence of load torque disturbance was reduced and the system＇s control performance was improved. Simulation and experiment results proved the effectiveness of the load observer and the feed-forward control strategy.