Asynchronous machine vector control: PIα controllers for current loops

2018 ◽  
Vol 234 (1) ◽  
pp. 107-117
Author(s):  
Rahma Hammami ◽  
Imène Ben Ameur ◽  
Khaled Jelassi
Keyword(s):  
Vector Control ◽  
Temperature Effect ◽  
Fractional Order ◽  
Induction Machine ◽  
Field Oriented Control ◽  
Electrical Parameters ◽  
Industrial Systems ◽  
Squirrel Cage ◽  
Simulation Results ◽  
Fractional Order Controller

This article deals with field-oriented control of induction machine squirrel cage. A robust fractional-order controller is applied and investigated to control the induction machine currents isd and isq. The fractional-order gives better fit in regulation operation. For this purpose, this controller form is recommended, especially in industrial systems, thanks to his flexibility, robustness and efficiency to solve complex problems such as electrical parameters changes (i.e. uncertain parameter) caused by the temperature effect. Based on frequency specification and several constraints, the fractional-order controller is designed. The fmincon toolbox optimization is used to adjust ki, kp and α values. In order to show the reliability of the developed controller in the induction machine behavior, several simulation results are carried out and illustrated.

A New Induction Motor Adaptive Robust Vector Control based on Backstepping

2017 ◽  
Vol 7 (4) ◽  
pp. 1983 ◽  
Author(s):  
Mhamed Madark ◽  
A. Ba-Razzouk ◽  
E. Abdelmounim ◽  
M.El Malah
Keyword(s):  
Vector Control ◽  
Time Constant ◽  
Induction Machine ◽  
Open Loop ◽  
Control Technique ◽  
Load Torque ◽  
Novel Approach ◽  
Rotor Flux ◽  
On Line ◽  
Simulation Results

<p>In this paper, a novel approach to nonlinear control of induction machine, recursive on-line estimation of rotor time constant and load torque are developed. The proposed strategy combines Integrated Backstepping and Indirect Field Oriented Controls. The proposed approach is used to design controllers for the rotor flux and speed, estimate the values of rotor time constant and load torque and track their changes on-line. An open loop estimator is used to estimate the rotor flux. Simulation results are presented which demonstrate the effectiveness of the control technique and on-line estimation.</p>

Fractional Order Controller Design for Ball and Beam System

2013 ◽  
Vol 313-314 ◽  
pp. 544-548 ◽  
Author(s):  
Mehmet Korkmaz ◽  
Omer Aydogdu
Keyword(s):  
Genetic Algorithms ◽  
Particle Swarm Optimization ◽  
Evolutionary Algorithms ◽  
Fractional Order ◽  
Controller Design ◽  
Swarm Optimization ◽  
System Parameters ◽  
Beam System ◽  
Simulation Results ◽  
Fractional Order Controller

Fractional order controllers which has mostly used recently have investigated in this paper. It is benefit from ball & beam system to show effects of controllers. Fractional order controller and its integer form are compared with simulation results for the mentioned system. Parameters of controllers have obtained by using evolutionary algorithms techniques which are particle swarm optimization (PSO) and genetic algorithms (GAs). According to results, it is confirmed the advantage of fractional controllers. Beside, PSO has a little bit superiority over GAs technique for determining optimum values of controller parameters.

Synchronization of Chaotic Fractional-Order Systems via Fractional-Order Adaptive Controller

2011 ◽  
Vol 109 ◽  
pp. 333-339 ◽  
Author(s):  
Ali Fayazi
Keyword(s):  
Fractional Order ◽  
Pid Controller ◽  
Adaptive Controller ◽  
Control Signal ◽  
Fractional Order Systems ◽  
Sliding Surface ◽  
Adaptation Mechanism ◽  
Simulation Results ◽  
And Performance ◽  
Fractional Order Controller

In this paper, an adaptive fractional-order controller has been designed for synchronization of chaotic fractional-order systems. This controller is a fractional PID controller, which the coefficients will be tuned according to a proper adaptation mechanism. PID coefficients are updated using the gradient method when a proper sliding surface is chosen. To illustrate the effectiveness and performance of the controller, the proposed controller implements on a pair of topologically inequivalent chaotic fractional-order systems. The Genesio-Tessi and Coullet systems. Performance of fractional-order adaptive PID controller (PαIλDμ) on the basis of speed of synchronization, error of synchronization, and level of control signal, is compared with the conventional ones (adaptive PID controller) and sliding mod controller (SMC). The simulation results reducing the level of control signal indicate the significance of the proposed controller.

Fractional Order: Frequential Parametric Identification of the Skin Effect in the Rotor Bar of Squirrel Cage Induction Machine

2003 ◽  
Author(s):  
Sylvain Canat ◽  
Jean Faucher
Keyword(s):  
Fractional Order ◽  
Frequency Band ◽  
Iterative Procedure ◽  
Skin Effect ◽  
Transfer Functions ◽  
Induction Machine ◽  
Parametric Identification ◽  
Squirrel Cage ◽  
Asynchronous Motors ◽  
Levenberg Marquardt

In this article, the authors propose a method of modeling of the skin effect in the rotor bars of asynchronous motors. Two compact transfer functions with a fractional order were selected to represent the admittance of the bar. The compactness of these transfer functions makes it possible to take into account the diffusive phenomenon of the skin effect on a broad frequency band and is characterized by a small quantity of parameters to identify. The authors carried out an identification by the method of the model associated with an iterative procedure of Levenberg-Marquardt.

scholarly journals Reduced Active Components Count Electronically Adjustable Fractional-Order Controllers: Two Design Examples

Electronics ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 63 ◽  
Author(s):  
Stavroula Kapoulea ◽  
Vassilios Bizonis ◽  
Panagiotis Bertsias ◽  
Costas Psychalinos ◽  
Ahmed Elwakil ◽  
...  
Keyword(s):  
Fractional Order ◽  
Building Blocks ◽  
Single Chip ◽  
Active Components ◽  
Correct Operation ◽  
Fully Integrated ◽  
Motor Controller ◽  
Technology Process ◽  
Simulation Results ◽  
Fractional Order Controller

This paper deals with fractional-order controller implementations, which can be constructed by electronically controlled building blocks fully integrated on a single chip. The proposed DC motor controller structure offers 50% reduction of the active components count, compared to the corresponding already published counterpart. The proposed liquid level of the two-interacting-tank controller scheme is the first one in the literature offering the aforementioned features. Simulation results, based on the 0.35 μ m Austria Mikro Systeme technology process, confirm the correct operation of both proposed controllers.

High Performance Speed Control of Single-Phase Induction Motors Using Switching Forward and Backward EKF Strategy

2016 ◽  
Vol 7 (1) ◽  
pp. 17
Author(s):  
Mohammad Jannati ◽  
Tole Sutikno ◽  
Nik Rumzi Nik Idris ◽  
Mohd Junaidi Abdul Aziz
Keyword(s):  
Kalman Filter ◽  
Vector Control ◽  
High Performance ◽  
Single Phase ◽  
Induction Motors ◽  
Field Oriented Control ◽  
Rotating Reference Frame ◽  
Balanced Structure ◽  
Simulation Results ◽  
Rotor Field Oriented Control

<p>The aim of this research is to provide a high performance vector control of single-phase Induction Motor (IM) drives. It is shown that in the rotating reference frame, the single-phase IM equations can be separated into forward and backward equations with the balanced structure. Based on this, a method for vector control of the single-phase IM, using two modified Rotor Field-Oriented Control (RFOC) algorithms is presented. In order to accommodate forward and backward rotor fluxes in the presented controller, an Extended Kalman Filter (EKF) with two different forward and backward currents that are switched interchangeably (switching forward and backward EKF), is proposed. Simulation results illustrate the effectiveness of the proposed algorithm.</p>

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