High performance induction motor speed control based on extended state observer with stator fluxes model

2005 ◽  
Author(s):  
Fei Lin ◽  
Zhiwen Ma ◽  
Guangyan Hu ◽  
Trillion Zheng ◽  
Wenchao Song
Keyword(s):  
Induction Motor ◽  
High Performance ◽  
Speed Control ◽  
State Observer ◽  
Extended State Observer ◽  
Motor Speed ◽  
Extended State

scholarly journals Speed control for permanent magnet synchronous motor based on an improved extended state observer

2018 ◽  
Vol 10 (1) ◽  
pp. 168781401774766 ◽  
Author(s):  
Bingyou Liu
Keyword(s):  
Control System ◽  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Speed Control ◽  
Synchronous Motor ◽  
State Observer ◽  
Extended State Observer ◽  
Motor Speed ◽  
Extended State ◽  
Speed Control System

An improved extended state observer is designed to eliminate the influences of speed control for a permanent magnet synchronous motor. The improved extended state observer is designed based on a new nonlinear function. This function exhibits better continuity and derivability than previously available functions and can effectively reduce the high-frequency flutter phenomenon. The nonlinear dynamics, model uncertainty, and external disturbances of the permanent magnet synchronous motor speed control system are extended to a new state. The improved extended state observer is utilized to observe this state. The overtime variation of the permanent magnet synchronous motor speed control system can be predicted and compensated in real time by the improved extended state observer. Therefore, the improved extended state observer, which is designed based on the new nonlinear function, can eliminate the disturbances on the permanent magnet synchronous motor speed control system. Finally, simulation experiments are performed and results show that the permanent magnet synchronous motor speed control system with improved extended state observer exhibits better performances.

scholarly journals Predictive Speed-Control Algorithm Based on a Novel Extended-State Observer for PMSM Drives

2019 ◽  
Vol 9 (12) ◽  
pp. 2575 ◽  
Author(s):  
Yang Zhao ◽  
Xudong Liu ◽  
Qi Zhang
Keyword(s):  
Control Method ◽  
Dynamic Performance ◽  
Taylor Series Expansion ◽  
Speed Control ◽  
State Observer ◽  
Extended State Observer ◽  
Current Loop ◽  
Motor Speed ◽  
Extended State ◽  
Time Model

To enhance the control performance of permanent-magnet synchronous motor (PMSM) drive systems, achieving high-precision motion control, a generalized predictive control (GPC) method based on a novel extended-state observer (ESO) is investigated for the speed control of PMSM. In this paper, the controller design consists of two steps. Firstly, according to the continuous time model of PMSM, using the Taylor series expansion, the predictive value of motor speed in finite time is derived, and the single-loop speed controller by combining the speed loop and q - axis current loop is obtained through the defined cost function. The structure of the controller is simple compared to other forms. Secondly, considering the uncertainty of the load torque and the model uncertainties, a novel extended-state observer is designed to compute the actual torque, and the observed value is introduced to the GPC controller. The simulation and experimental results show that the proposed GPC+ESO control method has superior dynamic performance and strong robustness.

Sign in / Sign up

Export Citation Format

Share Document