电动式操纵负荷系统多余力抑制技术研究

Research on Extraneous Force Suppression of Electric Control Loading System

多余力是影响飞行模拟器操纵负荷系统力感跟踪性能的主要因素。传统多余力抑制方法如PID控制和前馈补偿,具有力感跟踪精度低,响应速度慢的缺点。针对上述问题,提出了基于变论域模糊控制、前馈补偿的复合控制策略。首先建立了飞行模拟器操纵负荷系统的数学模型。然后分析了多余力的产生原因。最后采用了变论域模糊控制,PID控制和前馈补偿来提高系统性能。通过计算机仿真分析,证明了上述复合控制策略可以有效抑制多余力,提高系统抗干扰能力,提高系统的响应速度,改善系统性能。

The extraneous force is the main factor that affects the tracking performance of the flight simulator control loading system. Traditional extraneous force suppression methods such as PID control and feed-forward compensation have the shortcomings including low tracking precision and slow response. To solve this problem, a compound control strategy of variable universe fuzzy control combined with feed-forward compensation was proposed. Firstly, the mathematical model of flight simulator control loading system was built. Then the causes of extraneous force were analyze. Finally, variable domain fuzzy control, PID control and feed-forward compensation were adopted. Through the computer simulation analysis, it was demonstrated that this control strategy can effectively suppress the extraneous force, and improve the anti-jamming ability, response speed and performance of the system.