Adaptive induction machine current control using internal model principle

2004 ◽  
Author(s):  
Cheng-Jin Zhang
Keyword(s):  
Internal Model ◽  
Induction Machine ◽  
Current Control ◽  
Internal Model Principle

scholarly journals Internal Model Current Control of Brushless Doubly Fed Induction Machines

Energies ◽  
2018 ◽  
Vol 11 (7) ◽  
pp. 1883 ◽  
Author(s):  
Mei Su ◽  
Weiyu Jin ◽  
Guanguan Zhang ◽  
Weiyi Tang ◽  
Frede Blaabjerg
Keyword(s):  
Internal Model ◽  
Dynamic Performance ◽  
Induction Machine ◽  
Current Control ◽  
Grid Voltage ◽  
Wind Energy Generation ◽  
Slip Ring ◽  
Internal Model Controller ◽  
Doubly Fed Induction Machine ◽  
Doubly Fed

In the wind energy generation system, the brushless doubly-fed induction machine (BDFIM) has shown significant application potential, since it eliminates the electric brush and slip ring. However, the complicated rotor structure increases the control difficulty, especially resulting in complicated coupled terms in the current sub-system, which deteriorates the dynamic performance and reduces the system robustness. In order to address the problems caused by complex coupled terms, an internal model current control strategy is presented for the BDFIM, and an active damping term is designed for suppressing the disturbance caused by the total resistance. The proposed method simplifies the controller parameters design, and it achieves the fast-dynamic response and the good tracking performance, as well as good robustness. On the other hand, the feedforward term composed by the grid voltage is added to the internal model controller in order to suppress the disturbance when the symmetrical grid voltage sag happens. Finally, the simulation and experimental results verify the feasibility and effectiveness of the proposed method.

scholarly journals Continuous Control Set Predictive Current Control for Induction Machine

2021 ◽  
Vol 11 (13) ◽  
pp. 6230
Author(s):  
Toni Varga ◽  
Tin Benšić ◽  
Vedrana Jerković Štil ◽  
Marinko Barukčić
Keyword(s):  
Control Method ◽  
Induction Machine ◽  
Current Control ◽  
Continuous Control ◽  
Loop Model ◽  
Voltage Reference ◽  
Control Loop ◽  
Speed Tracking ◽  
Finite Control ◽  
Control Set

A speed tracking control method for induction machine is shown in this paper. The method consists of outer speed control loop and inner current control loop. Model predictive current control method without the need for calculation of the weighing factors is utilized for the inner control loop, which generates a continuous set of voltage reference values that can be modulated and applied by the inverter to the induction machine. Interesting parallels are drawn between the developed method and state feedback principles that helped with the analysis of the stability and controllability. Simple speed and rotor flux estimator is implemented that helps achieve sensorless control. Simulation is conducted and the method shows great performance for speed tracking in a steady state, and during transients as well. Additionally, compared to the finite control set predictive current control, it shows less harmonic content in the generated torque on the rotor shaft.

scholarly journals A pedagogical path from the internal model principle to Youla-Kučera parametrization

2020 ◽  
Vol 53 (2) ◽  
pp. 17374-17379
Author(s):  
Erik Hedberg ◽  
Johan Löfberg ◽  
Anders Helmersson
Keyword(s):  
Internal Model ◽  
Internal Model Principle

INTERNAL MODEL PRINCIPLE FOR TIME-DELAY SYSTEMS OF RETARDED TYPE

2007 ◽  
Vol 40 (20) ◽  
pp. 685-690
Author(s):  
M. Di Loreto ◽  
J.J. Loiseau ◽  
J.-F. Lafay
Keyword(s):  
Time Delay ◽  
Internal Model ◽  
Delay Systems ◽  
Time Delay Systems ◽  
Internal Model Principle
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