Results 41 to 50 of about 17,953,914 (330)

Impedance active control of flight control devices [PDF]

open access: yes, 2010
The work presented in this paper concerns the active control of flight control devices (sleeves, yokes, side-sticks, rudder pedals,...). The objective is to replace conventional technologies by active technology to save weight and to feedback kinesthetic
Alazard, Daniel   +2 more
core   +1 more source

Impedance Control of Space Robot On-Orbit Insertion and Extraction Based on Prescribed Performance Method

open access: yesApplied Sciences, 2022
Aiming at the force position control problem of the on-orbit insertion and extraction operation of the free-floating space robot, the system dynamics model is established.
Dongbo Liu, Haiping Ai, Li Chen
doaj   +1 more source

Impedance control network resonant dc-dc converter for wide-range high-efficiency operation [PDF]

open access: yes, 2015
This paper introduces a new resonant converter architecture that utilizes multiple inverters and a lossless impedance control network (ICN) to maintain zero voltage switching (ZVS) and near zero current switching (ZCS) across wide operating ranges. Hence,
Afridi, Khurram K.   +2 more
core   +1 more source

Optimal Fuzzy Impedance Control for a Robot Gripper Using Gradient Descent Iterative Learning Control in Fuzzy Rule Base Design

open access: yesApplied Sciences, 2020
This paper proposes a novel control approach for a robot gripper in which the impedance control, fuzzy logic control, and iterative learning control are combined in the same control schema.
Ba-Phuc Huynh, Yong-Lin Kuo
doaj   +1 more source

Human Like Adaptation of Force and Impedance in Stable and Unstable Tasks [PDF]

open access: yes, 2011
—This paper presents a novel human-like learning con-troller to interact with unknown environments. Strictly derived from the minimization of instability, motion error, and effort, the controller compensates for the disturbance in the environment in ...
Albu-Schaeffer, A   +5 more
core   +1 more source

Effects of Impedance Reduction of a Robot for Wrist Rehabilitation on Human Motor Strategies in Healthy Subjects during Pointing Tasks [PDF]

open access: yes, 2011
Studies on human motor control demonstrated the existence of simplifying strategies (namely `Donders' law') adopted to deal with kinematically redundant motor tasks.
Campolo, Domenico   +4 more
core   +1 more source

Variable Impedance Control in End-Effector Space: An Action Space for Reinforcement Learning in Contact-Rich Tasks [PDF]

open access: yesIEEE/RJS International Conference on Intelligent RObots and Systems, 2019
Reinforcement Learning (RL) of contact-rich manipulation tasks has yielded impressive results in recent years. While many studies in RL focus on varying the observation space or reward model, few efforts focused on the choice of action space (e.g.
Roberto Martín-Martín   +5 more
semanticscholar   +1 more source

Tradeoffs between AC power quality and DC bus ripple for 3-phase 3-wire inverter-connected devices within microgrids [PDF]

open access: yes, 2011
Visions of future power systems contain high penetrations of inverters which are used to convert power from dc (direct current) to ac (alternating current) or vice versa.
Burt, Graeme M.   +2 more
core   +1 more source

Impedance-compensated grid synchronisation for extending the stability range of weak grids with voltage source converters [PDF]

open access: yes, 2016
This paper demonstrates how the range of stable power transfer in weak grids with voltage source converters (VSCs) can be extended by modifying the grid synchronisation mechanism of a conventional synchronous reference frame phase locked loop (PLL).
D'Arco, Salvatore   +3 more
core   +2 more sources

Decentralized impedance control

open access: yesIFAC Proceedings Volumes, 1994
Abstract We describe an impedance control method following an independent joint control approach. Simple impedance controllers are set up at each joint and coupling among the joints is cancelled using equally simple compensators. It is possible to program any diagonal visco-elastic impedance matrix in Cartesian task coordinates within the limits of ...
M. Doyon, V. Hayward, M. Pelletier
openaire   +2 more sources

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