Results 1 to 10 of about 251,354 (284)

Anti-disturbance control design of Exoskeleton Knee robotic system for rehabilitative care

Heliyon
In this study, Active Disturbance Rejection Control (ADRC) has been designed for motion control of knee-joint based on exoskeleton medical robot. The extended state observer (ESO) is the main part of ADRC structure, which is responsible for estimating ...
Ayad Qasim AL-DUJAILI, Alaq F. Hasan, Amjad J. Humaidi, Ammar Al-Jodah   +3 more
doaj   +1 more source

Active Disturbance Rejection Control of Permanent Magnet Synchronous Motor Based on RPLESO

Energies
In view of the problem of the low-speed jitter of household lawn mowers driven by a permanent magnet synchronous motor (PMSM) at low speeds and high torque, and the complicated parameters of traditional non-linear active disturbance rejection controllers,
Chengpeng Zhou, Bo Wang, Kai Liu, Kaixuan Ren   +3 more
doaj   +1 more source

Improved Model-Free Sliding Mode Control of Linear Motor Based on Time-Varying Gain Model-Assisted Linear Extended State Observer

IEEE Access
Aiming at the effects of motor parameter ingress and load mutation on the speed control of permanent magnet synchronous linear motor (PMSLM) motors, this paper designs a PMSLM improved model-free sliding-mode speed control strategy based on the variable ...
Jian Lin, Wujie Jiang, Lei Zhou, Jiting Sun, Xinyi Song   +4 more
doaj   +1 more source

Output Feedback Control of Dual-Valve Electro-Hydraulic Valve Based on Cascade Structure Extended State Observer Systems with Disturbance Compensation

Machines
In the development trend of intelligent and high-performance construction machinery, the dual-spool electro-hydraulic valve, as a new-generation core control element, directly affects the operation accuracy and energy-efficiency level of construction ...
Cunde Jia, Shaoguang Li, Xiangdong Kong, Hangtian Ma, Zhuowei Yu, Chao Ai, Yunhong Jiang   +6 more
doaj   +1 more source

An energy-based state observer for dynamical subsystems with inaccessible state variables [PDF]

, 2012
This work presents an energy-based state estimation formalism for a class of dynamical systems with inaccessible/ unknown outputs, and systems at which sensor utilization is impractical, or when measurements can not be taken.
Misra, Sarthak, Sabanovic, Asif, Shoukry Mohammed Khalil, Islam, Şabanoviç, Asif   +3 more
core  

Fault Estimation for Semi-Markov Jump Neural Networks Based on the Extended State Method

Applied Sciences
This paper addresses fault estimation in discrete-time semi-Markov jump neural networks (s-MJNNs) under the Round-Robin protocol and proposes an innovative extended state observer-based approach. Unlike studies considering only constant transition rates,
Lihong Rong, Yuexin Pan, Zhimin Tong
doaj   +1 more source

Comparing Kalman Filters and Observers for Power System Dynamic State Estimation with Model Uncertainty and Malicious Cyber Attacks

, 2018
Kalman filters and observers are two main classes of dynamic state estimation (DSE) routines. Power system DSE has been implemented by various Kalman filters, such as the extended Kalman filter (EKF) and the unscented Kalman filter (UKF).
Qi, Junjian, Taha, Ahmad F., Wang, Jianhui   +2 more
core  

Three-vector model predictive power control of doubly fed induction generator based on linear extended state observer under unbalanced grid

International Journal of Electrical Power & Energy Systems
Doubly-fed induction generator (DFIG) is susceptible to unbalanced grid voltage and mismatched motor parameters during grid-connected operation. The conventional model predictive control (MPC) has low complexity and fast dynamic response, which is widely
Hui Jin, Zhenxiong Zhou, Pingping Qu
doaj   +1 more source

Linear Active Disturbance Rejection Control Parameter Tuning Method for Energy Storage Converter with Enhanced Stability

Zhongguo dianli
In order to compensate for the negative impedance characteristics of constant power load in the direct current (DC) microgrid, it is necessary to speed up the response speed of the hybrid energy storage system and give full play to its performance.
Shilong LI, Longjiang LI, Xinbo LIU, Hua ZHANG   +3 more
doaj   +1 more source

Sliding mode control of excavator electro-hydraulic system based on linear extended state observer

Journal of Measurement Science and Instrumentation
The actual working environment of unmanned excavation robot is harsh. In order to improve the trajectory tracking accuracy of bucket under load disturbance, a nonlinear mathematical model of electro-hydraulic system of digging robot was established, and ...
ZHANG Sen, ZHANG Ping, ZHAO Zhe
doaj