Results 21 to 30 of about 748 (161)

An Active Disturbance Rejection Control of Large Wind Turbine Pitch Angle Based on Extremum-Seeking Algorithm

open access: yesEnergies, 2022
This paper proposes the analysis and design of the linear active disturbance rejection controller (LADRC) for the pitch angle model of a large wind turbine generator (WTG). Since the transfer function of the pitch control system exhibits nonminimum-phase
Yarong Zou   +3 more
doaj   +1 more source

Linear Active Disturbance Rejection Control for DC Bus Voltage Under Low-Voltage Ride-Through at the Grid-Side of Energy Storage System

open access: yesEnergies, 2020
The energy storage inverter system has the characteristics of nonlinearity, strong coupling, variable parameters, and flexible mode switching between parallel and off grid.
Youjie Ma   +5 more
doaj   +1 more source

Linear Active Disturbance Rejection Control of Grid-Connected Photovoltaic Inverter Based on Deviation Control Principle

open access: yesEnergies, 2020
Photovoltaic grid-connected power generation systems are easily affected by external factors, and their anti-interference performance is poor. For example, changes in illumination and fluctuations in the power grid affect the operation ability of the ...
Xuesong Zhou, Jiayao Wang, Youjie Ma
doaj   +1 more source

Research on LADRC Based Microgrid Quasi-synchronization Smooth Grid-Connection Method

open access: yes, 2021
The prerequisite for ensuring the safe and reliable operation of the microgrid is to realize the smooth and fast switching of microgrid between grid-connection and islanding operation.
Meng, Z   +5 more
core   +1 more source

Research on instability model in main drive of rolling mill based on LADRC

open access: yes工程科学学报, 2021
From the view of the mill main driving control system,instability model of the electromechanical system and control strategy were researched. In the premise of ensuring the steady and dynamic performance of the control system,the model of main drive of ...
ZHANG Yong-kang   +2 more
doaj   +1 more source

Research and Application on Output Voltage Stabilization of DAB Converter Based on LADRC with Reduced-Order Model

open access: yes, 2023
One of the essential requirements for high-performance dual active bridge (DAB) converters is to obtain the constant output voltage rapidly and accurately under different disturbances.
Gao, S, Li, H
core   +1 more source

Research on Dynamic Performance Improvement of Load Switching in Microgrid to Three-phase Voltage Source Inverter Based on LADRC

open access: yes, 2020
The droop-controlled inverter can be modeled as a controllable voltage source with output impedance in series. However, dynamic performance in islanded microgrid mode is highly sensitive to the inverter output impedance.
Fu, Z   +5 more
core   +1 more source

Fuzzy Linear Active Disturbance Rejection Control Method for Permanent Magnet Electromagnetic Hybrid Suspension Platform

open access: yesApplied Sciences, 2023
The permanent magnetic suspension (PMS) train has distinct advantages in reducing energy consumption and increasing the suspension air gap. Aiming at the problems of uncontrollable magnetic field and underdamping of the PMS system, the electromagnetic ...
Yao Qin   +3 more
doaj   +1 more source

Research on Compensation of Three-Phase Unbalanced Voltage of Microgrid Based on LADRC

open access: yes, 2020
To the isolated microgrid, the main cause of the unbalanced voltage is the three-phase unbalanced load. In this paper, a sequence control scheme for a three-phase four-leg inverter is proposed.
Wang, Z   +7 more
core   +1 more source

Research on Output Voltage Stabilization of LLC Resonant Converter Based on LADRC with Simplified Linear Model

open access: yes, 2021
LLC resonant converter has gained popularity in a wide number of industrial applications due to its high efficiency and power density. However, disturbances such as input voltage fluctuations and parameter perturbations make the control of output voltage
Wang, Z   +5 more
core   +1 more source

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