Abstract The position tracking problem is investigated in this paper for DC torque motor system. A novel fixed-time control strategy is presented, the structure of which can be adjusted with continuous transition. A fixed-time extended state observer is designed to estimate the total disturbance. The proposed observer-based controller renders the position of DC torque motor track the desired signal in fixed time. Both disturbance observer and position tracking controller are fixed-time convergent. The bound of setting time can be determined regardless of initial states. Numerical simulation and experiment are carried out to validate the effectiveness of the proposed strategy.

中文翻译：

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一种基于观测器的直流力矩电机系统固定时间位置跟踪策略

摘要 本文研究了直流力矩电机系统的位置跟踪问题。提出了一种新型的固定时间控制策略，其结构可以连续过渡进行调整。固定时间扩展状态观测器被设计来估计总扰动。所提出的基于观测器的控制器使直流力矩电机的位置在固定时间内跟踪所需的信号。扰动观测器和位置跟踪控制器都是固定时间收敛的。无论初始状态如何，都可以确定凝固时间的界限。进行数值模拟和实验以验证所提出策略的有效性。