Abstract In order to solve the precise position control problem of a rigid and flexible manipulator with underactuated variables, controller was designed based on fuzzy nonsingular terminal slip strategy combined state feedback. The simulation results show that, compared existing basic sliding mode methods, proposed method has less overshoot, adjustment time, input torque jitter, maximum amplit...

In this article, the issue of attitude control and active vibration suppression of a nonlinear flexible spacecraft is assessed through piezoelectric patches as actuator and sensors. Two controller loops are applied: the inner loop, to make the panel vibration damped through piezoelectric patches; and the outer loop, to perform spacecraft maneuver using the reaction wheel acting on the hub. An o...

Accurate positioning of the motor requires high control performance for low-speed operation and motor’s parameter perturbation. In the AC motor vector control technology, the nonsingular higher-order terminal sliding mode observer of Insertion Permanent Magnet Synchronous Motor (IPMSM) is put forward based on the object current and voltage values to obtain the rotor position and speed signa. Th...

Adaptive nonsingular fast terminal sliding mode control for electromechanical actuator Hao Li a b , Lihua Dou a b & Zhong Su c a School of Automation, Beijing Institute of Technology, Beijing 100081, China b Key Laboratory of Complex System Intelligent Control and Decision (Beijing Institute of Technology), Ministry of Education, Beijing 100081, China c Key Laboratory of Modern Measurement and ...