scholarly journals Adaptive Quasi-Sliding Mode Control for Permanent Magnet DC Motor

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Fredy E. Hoyos ◽  
Alejandro Rincón ◽  
John Alexander Taborda ◽  
Nicolás Toro ◽  
Fabiola Angulo
Keyword(s):  
Controller Design ◽  
Sliding Mode ◽  
Digital Signal ◽  
Coupled System ◽  
Dc Motor ◽  
Power Converter ◽  
Control Technique ◽  
Motor Speed ◽  
Rapid Control ◽  
Rapid Control Prototyping

The motor speed of a buck power converter and DC motor coupled system is controlled by means of a quasi-sliding scheme. The fixed point inducting control technique and the zero average dynamics strategy are used in the controller design. To estimate the load and friction torques an online estimator, computed by the least mean squares method, is used. The control scheme is tested in a rapid control prototyping system which is based on digital signal processing for a dSPACE platform. The closed loop system exhibits adequate performance, and experimental and simulation results match.

scholarly journals Controller Design for a Second-Order Plant with Uncertain Parameters and Disturbance: Application to a DC Motor

2013 ◽  
Vol 2013 ◽  
pp. 1-16 ◽  
Author(s):  
Alejandro Rincón ◽  
Fredy E. Hoyos ◽  
Fabiola Angulo
Keyword(s):  
Controller Design ◽  
Digital Signal ◽  
Dc Motor ◽  
Second Order ◽  
Motor Speed ◽  
Adaptive Backstepping ◽  
Control Framework ◽  
Rapid Control ◽  
Time Varying Parameters ◽  
Rapid Control Prototyping

This paper shows the controller design for a second-order plant with unknown varying behavior in the parameters and in the disturbance. The state adaptive backstepping technique is used as control framework, but important modifications are introduced. The controller design achieves mainly the following two benefits: upper or lower bounds of the time-varying parameters of the model are not required, and the formulation of the control and update laws and stability analysis are simpler than closely related works that use the Nussbaum gain method. The controller has been developed and tested for a DC motor speed control and it has been implemented in a Rapid Control Prototyping system based on Digital Signal Processing for dSPACE platform. The motor speed converges to a predefined desired output signal.

scholarly journals Controlling a DC Motor through Lypaunov-like Functions and SAB Technique

2018 ◽  
Vol 8 (4) ◽  
pp. 2180
Author(s):  
Alejandro Rincón ◽  
Fabiola Angulo ◽  
Fredy Hoyos
Keyword(s):  
Digital Signal ◽  
Adaptive Controller ◽  
Dc Motor ◽  
Motor Speed ◽  
Adaptive Backstepping ◽  
Inertia Moment ◽  
Rapid Control ◽  
Rapid Control Prototyping ◽  
Robust Adaptive ◽  
Robust Adaptive Controller

<p>In this paper, state adaptive backstepping and Lyapunov-like function methods are used to design a robust adaptive controller for a DC motor. The output to be controlled is the motor speed. It is assumed that the load torque and inertia moment exhibit unknown but bounded time-varying behavior, and that the measurement of the motor speed and motor current are corrupted by noise. The controller is implemented in a Rapid Control Prototyping system based on Digital Signal Processing for dSPACE platform and experimental results agree with theory.</p>

scholarly journals Voltage Regulation in a Power Inverter Using a Quasi-Sliding Control Technique

DYNA ◽  
2015 ◽  
Vol 82 (192) ◽  
pp. 52-59
Author(s):  
Nicolás Toro-García ◽  
Yeison Alberto Garcés-Gómez ◽  
Fredy Edimer Hoyos-Velasco
Keyword(s):  
Signal Processing ◽  
Digital Signal ◽  
Voltage Regulation ◽  
Power Converter ◽  
Control Technique ◽  
Resistive Load ◽  
Chaos Detection ◽  
Rapid Control ◽  
Rapid Control Prototyping ◽  
The Time Domain

<p>This paper shows the behavior of a three-phase power converter with resistive load using a quasi-sliding and a chaos control techniques for output voltage regulation. Controller is designed using Zero Average Dynamic (ZAD) and Fixed Point Inducting Control (FPIC) techniques. Designs have been tested in a Rapid Control Prototyping (RCP) system based on Digital Signal Processing (DSP) for dSPACE platform. Bifurcation diagrams show the robustness of the system. Chaos detection is a signal processing method in the time domain, and has power quality phenomena detection applications. Results show that the phase voltage in the load has sinusoidal performance when it is controlled with these techniques. When delay effects are considered, experimental and numerical results match in both of stable and transition to chaos zones.</p>

Adaptive Control for Buck Power Converter Using Fixed Point Inducting Control and Zero Average Dynamics Strategies

2015 ◽  
Vol 25 (04) ◽  
pp. 1550049 ◽  
Author(s):  
Fredy Edimer Hoyos Velasco ◽  
Nicolás Toro García ◽  
Yeison Alberto Garcés Gómez
Keyword(s):  
Fixed Point ◽  
Digital Signal ◽  
Power Converter ◽  
Buck Converter ◽  
Control Techniques ◽  
Comparison Results ◽  
Control Scheme ◽  
Rapid Control ◽  
Rapid Control Prototyping ◽  
Lms Method

In this paper, the output voltage of a buck power converter is controlled by means of a quasi-sliding scheme. The Fixed Point Inducting Control (FPIC) technique is used for the control design, based on the Zero Average Dynamics (ZAD) strategy, including load estimation by means of the Least Mean Squares (LMS) method. The control scheme is tested in a Rapid Control Prototyping (RCP) system based on Digital Signal Processing (DSP) for dSPACE platform. The closed loop system shows adequate performance. The experimental and simulation results match. The main contribution of this paper is to introduce the load estimator by means of LMS, to make ZAD and FPIC control feasible in load variation conditions. In addition, comparison results for controlled buck converter with SMC, PID and ZAD–FPIC control techniques are shown.

scholarly journals Super-Twisting Algorithm Applied to Velocity Control of DC Motor without Mechanical Sensors Dependence

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 6041
Author(s):  
Fredy A. Valenzuela ◽  
Reymundo Ramírez ◽  
Fermín Martínez ◽  
Onofre A. Morfín ◽  
Carlos E. Castañeda
Keyword(s):  
Controller Design ◽  
Sliding Mode ◽  
Dc Motor ◽  
Experimental Results ◽  
Resistive Load ◽  
Velocity Control ◽  
Velocity Sensor ◽  
Control Scheme ◽  
Mechanical Sensors ◽  
Twisting Algorithm

A DC motor velocity control in feedback systems usually requires a velocity sensor, which increases the controller cost. Additionally, the velocity sensor used in industrial applications presents several disadvantages such as maintenance requirements and signal conditioning. In this work, we propose a robust velocity control scheme applied to a DC motor based on estimation strategies using a sliding-mode observer. This means that measurements with mechanical sensors are not required in the controller design. The proposed observer estimates the rotational velocity and load torque of the motor. The controller design applies the exact-linearization technique combined with the super-twisting algorithm to achieve robust performance in the closed-loop system. The controller validation was carried out by experimental tests using a workbench, which is composed of a control and data acquisition Digital Signal Proccessor board, a DC-DC electronic converter, an interface board for signals conditioning, and a DC electric generator connected to an adjustable resistive load. The simulation and experimental results show a significant performance of the proposed control scheme. During tests, the accuracy, robustness, and speed response on the controller were evaluated and the experimental results were compared with a classic proportional-integral controller, which uses a conventional encoder.

scholarly journals Performance Evaluation of Co-Design of Discrete Event Networked Controlled DC Motor System

2018 ◽  
Vol 7 (3.12) ◽  
pp. 968
Author(s):  
Ankur Jain ◽  
B K. Roy
Keyword(s):  
Packet Loss ◽  
Controller Design ◽  
Discrete Event ◽  
Dc Motor ◽  
Networked Control System ◽  
Control Technique ◽  
Network Link ◽  
Time Domains ◽  
Simulation Results ◽  
Transient And Steady State

In this paper, we have designed a control technique for a networked DC motor in the presence of networked delay, packet loss, and jitter. We have used the predicted states for the controller design to achieve the transient and steady-state objectives. A networked compensator is designed to overcome the network constraints. The network link is modelled using the queue server mechanism which can assimilate a lot of features of the network. The proposed technique can also be applied to various other applications. The analysis of the networked control system is done in frequency and time domains. The simulation results are presented to test the performance of the proposed control technique. 

scholarly journals Controller Design and Preliminary Testing of a Powered Below-Knee Prosthetic Device

2012 ◽  
Author(s):  
Jinming Sun ◽  
Philip A. Voglewede
Keyword(s):  
Digital Signal Processor ◽  
Controller Design ◽  
Digital Signal ◽  
Power Input ◽  
Dc Motor ◽  
Bench Test ◽  
Area Network ◽  
Level Control ◽  
Lower Limb Prosthesis ◽  
Dsp Control

A powered lower limb prosthesis, which consists of a four bar mechanism, a torsional spring and a brushed DC motor, was previously designed and fabricated. To regulate the motor power input, a two level controller was proposed and built. The control algorithm includes a higher level finite state controller and lower level PID controllers. A digital signal processor (DSP) control board and MATLAB Simulink are used to realize the higher level control and a DC motor controller is used to realize the lower level PID control. Controller Area Network (CAN) communication was used to communicate between the two level controllers. To preliminarily test if the motor can generate required power, a bench test was performed. The results show that the motor needs to be overpowered to achieve the required moment.

scholarly journals Neural Sliding Mode Control for Induction Motors Using Rapid Control Prototyping

2017 ◽  
Vol 50 (1) ◽  
pp. 9625-9630 ◽  
Author(s):  
Eduardo Quintero-Manriquez ◽  
Edgar N. Sanchez ◽  
Ronal G. Harley ◽  
Sufei Li ◽  
Ramon A. Felix
Keyword(s):  
Sliding Mode Control ◽  
Induction Motors ◽  
Sliding Mode ◽  
Mode Control ◽  
Rapid Control ◽  
Rapid Control Prototyping
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