Results 1 to 10 of about 53,408 (293)
Theoretic and Experimental Analysis to the Disturbance Torque Maintaining the Angle of Gimbal during the Centrifugal Acceleration Test [PDF]
한국정밀공학회지, 2022 In this study, the disturbance torque that maintains the gimbal at a specific angle during the centrifugal acceleration test was analyzed. Newton's Second Law for Rotation was applied, to calculate the disturbance torque.
Jun Soo Kim +4 more
doaj +1 more source
High Precision Hybrid Torque Control for 4-DOF Redundant Parallel Robots under Variable Load
Actuators, 2023 As regards the impact and chattering of 4-DOF redundant parallel robots that occur under high-speed variable load operating conditions, this study proposed a novel control algorithm based on torque feedforward and fuzzy computational torque feedback ...
Shengqiao Hu +5 more
doaj +1 more source
A New Nonlinear Dynamic Speed Controller for a Differential Drive Mobile Robot
Entropy, 2023 A disturbance/uncertainty estimation and disturbance rejection technique are proposed in this work and verified on a ground two-wheel differential drive mobile robot (DDMR) in the presence of a mismatched disturbance.
Ibrahim A. Hameed +8 more
doaj +1 more source
Applied Sciences, 2021 A sun-tracking solar array is an effective solution to the increasing energy demand of spacecrafts. However, the driving torque fluctuation of the solar array driving assembly (SADA) and its oscillatory motion lead to the micro-vibration problem of the ...
Jisong Yu +5 more
doaj +1 more source
IEEE Access, 2023 Permanent Magnet Synchronous Motors (PMSMs) are employed in various high-precision industrial applications. However, the torque ripple caused by nonideal factors, such as cogging torque, flux harmonics, and unbalanced stator phase currents diminishes ...
Ty Trung Nguyen +2 more
doaj +1 more source
Force-Torque Sensor Disturbance Observer Using Deep Learning [PDF]
, 2020 Robots executing force controlled tasks require accurate perception of the applied force in order to guarantee precision. However, dynamic motions generate non-contact forces due to the inertia. These non-contact forces can be regarded as disturbances to be removed such that only the forces generated by contacts with the environment remain.
Mohy El Dine, Kamal +4 more
openaire +3 more sources
An Improved Hybrid Control Scheme of a Switched Reluctance Motor for Torque Ripple Reduction
Applied Sciences, 2022 In this paper, we presents an improved hybrid control scheme based on model predictive torque control using linear active disturbance rejection control (LADRC) for the torque drive system of a 12/14 bearingless switched reluctance motor.
Xiaofeng He, Yao Yao
doaj +1 more source
IEEE Access, 2021 This paper focuses on designing a disturbance observer-based control (DOBC) system for PMSM drives. The cascade structure of the discrete-time PI-PI control system with tracking anti-windup scheme has been designed for both loops.
Bayandy Sarsembayev +2 more
doaj +1 more source
Journal of Low Frequency Noise, Vibration and Active Control, 2021 A high-speed-level gear transmission system model of a wind turbine is presented considering a time-varying wind load and an electromagnetic torque disturbance, along with eccentricity, dynamic backlash, and friction force.
Weiwei Liu, Weiqiang Zhao, Jie Liu
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A flow disturbance estimation and rejection strategy for multirotors with round-trip trajectories [PDF]
, 2020 This paper presents a round-trip strategy of multirotors subject to unknown flow disturbances. During the outbound flight, the vehicle immediately utilizes the wind disturbance estimations in feedback control, as an attempt to reduce the tracking error ...
Byun, Jaeseung +2 more
core +2 more sources