飞行模拟转台高精度数字重复控制器的设计

从工程的角度讨论了离散重复控制系统的设计,所提出的重复控制方法可保证速度跟踪误差快速收敛为零。在重复控制器中采用了高阶低通滤波器和动态补偿器,改善了跟踪精度,保证了系统的稳定性,减少了周期性扰动误差。将所提出的方法应用于飞行模拟转台伺服系统的速度控制中,仿真结果表明,针对周期指令信号和周期干扰信号可保证较高的跟踪精度和较强的稳定性和鲁棒性。

Design of High Precision Digital Repetitive Controller for Flight Simulator Servosystem

This paper discusses a discrete-time repetitive control system from the viewpoint of practical engineering. The proposed controller method can guarantee fast convergence of the speed tracking error to zero. High rank digital low pass filter and dynamic compensator are applied in the repetitive controller, and the tracking precision and system stability are guaranteed. The proposed scheme is applied to digital speed tracking of flight simulator servo system. The simulation results indicate that the output value follows the periodic reference input signal with very small error within finite steps, and that higher tracking precision, and robustness can be gotten.