Results 31 to 40 of about 25,842 (241)

An improved capacitor voltage full feedforward control strategy for LCL‐type grid‐connected inverter based on control delay compensation

IET Power Electronics, 2021
For the LCL‐type grid‐connected inverter, when the capacitor voltage feedforward is applied, the delay in the digital control system could change the phase characteristics of capacitor voltage feedback and affect the stability of the system. To solve the
Xingwu Yang, Guokuai Wu, Zhicheng Meng, Yani Wang, Liang Ji, Hua Xue, Xiaoyan Bian   +6 more
doaj   +1 more source

An optimal feedforward design for complete PMD compensation up to the second order [PDF]

, 2004
As an extension to a previous paper, this paper describes the optimization of a second-order, feedforward polarization-mode dispersion (PMD) compensation scheme by reducing its degrees of freedom (DOF) by two.
Eyal, Avishay, Ouyang, George, Yariv, Amnon   +2 more
core   +1 more source

A medical information system for monitoring respiratory function and related nonlinear dynamics [PDF]

, 2019
In this paper the nonlinear effects in the respiratory systems at low frequencies are measured and evaluated in healthy children and healthy adults. To this aim forced oscillations technique (FOT) has been used to non-invasively measure the lung tissue ...
Copot, Dana, Ghita, Maria, Ghita, Mihaela, Ionescu, Clara-Mihaela   +3 more
core   +1 more source

A Self-Tuning Feedforward Compensator

IFAC Proceedings Volumes, 1991
Abstract In this paper, the development of a self-tuning feedforward compensator is discussed. The technique is to witness the uncompensated load response and identify the system transfer functions from it and set the compensator for ideal compensation. The compensator is then tuned by a trial and error method so as to account for the modelling error.
openaire   +1 more source

Kinematic Calibration and Compensation of Industrial Robots Based on Extended Joint Space

IEEE Access, 2023
The application of robots in high-precision automated machining is constrained by their limited multi-directional repeatability. In contrast, robots demonstrate superior levels of unidirectional repeatability, implying the potential for enhancing their ...
Wei He, Pin Zhang, Kai Guo, Jie Sun, Vinothkumar Sivalingam, Xiaoming Huang   +5 more
doaj   +1 more source

A new sensorless method for switched reluctance motor drives [PDF]

, 1998
This paper describes a new method for indirect sensing of the rotor position in switched reluctance motors (SRMs) using pulse width modulation voltage control.
Gallegos-Lopez, G., Kjaer, P.C., Miller, T.J.E.   +2 more
core   +1 more source

A Parallel GRU-Transformer Neural Network Approach for Feedforward Compensation in Precision Motion Platform Control

IEEE Access
This paper proposes a feedforward compensation strategy based on Parallel GRU-Transformer neural network to address the issues of large tracking errors and insufficient stability of multi degree of freedom precision motion platforms in complex dynamic ...
Yi-Min Wang, Jun-Jie Wang, Ji-Teng Yang, Bin Liu, Shi Bu, Xi Chen, Jian-Ping Xing   +6 more
doaj   +1 more source

Delay-Compound-Compensation Control for Photoelectric Tracking System Based on Improved Smith Predictor Scheme

IEEE Photonics Journal, 2022
High control bandwidth is usually restricted in a photoelectric tracking system (PTS) based on a Charge-Couple Device(CCD) with time delay, which hinders a good tracking performance.
Yong Luo, Wenchao Xue, Wei He, Kang Nie, Yao Mao, Josep M. Guerrero   +5 more
doaj   +1 more source

Research and Experiment on an Adaptive Feedforward Compensation Composite Control Strategy for an Electro-Hydraulic Servo System

IEEE Access
In order to reduce the tracking and response errors of the electro-hydraulic servo system, improve the dynamic response quality of the system, enhance the adaptive ability of the system, and effectively solve the common problems of nonlinear interference
Mei Luhai
doaj   +1 more source

A New Motion Tracking Controller with Feedforward Compensation for Robot Manipulators Based on Sectorial Fuzzy Control and Adaptive Neural Networks

Mathematics
A novel trajectory tracking control approach for robot manipulators that uses adaptive neural network feedforward compensation plus a sectorial fuzzy controller is presented.
Andres Pizarro-Lerma, Victor Santibañez, Ramon Garcia-Hernandez, Jorge Villalobos-Chin, Javier Moreno-Valenzuela   +4 more
doaj   +1 more source