Comparison performance between sliding mode control and nonlinear control, application to induction motor (original) (raw)
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Speed Control of Induction Motor Using New Sliding Mode Control Technique
Iraqi Journal for Electrical And Electronic Engineering, 2010
Induction Motors have been used as the workhorse in the industry for a long time due to its easy build, high robustness, and generally satisfactory efficiency. However, they are significantly more difficult to control than DC motors. One of the problems which might cause unsuccessful attempts for designing a proper controller would be the time varying nature of parameters and variables which might be changed while working with the motion systems. One of the best suggested solutions to solve this problem would be the use of Sliding Mode Control (SMC). This paper presents the design of a new controller for a vector control induction motor drive that employs an outer loop speed controller using SMC. Several tests were performed to evaluate the performance of the new controller method, and two other sliding mode controller techniques. From the comparative simulation results, one can conclude that the new controller law provides high performance dynamic characteristics and is robust with regard to plant parameter variations.
International Engineering and Natural Sciences Conference (IENSC 2019).At: Diyarbakır, TURKEY, 2019
Induction motors are widely used in the industrial sector because of their low cost, small size and less failure percentage. However, they are highly nonlinear system. Therefore, nonlinear control schemes can significantly improve their performance. In this paper, sliding mode control and feedback linearization control are designed to control an induction machine of 0.25 Kw. The controller performances are evaluated based on performance measures such as maximum tracking error, average tracking error, and standard deviation of the tracking error. The simulation results and performance measures show that sliding mode controller outperforms feedback linearization control in the case of applying a variable or a sinusoidal speed as reference input.
Design of Sliding Mode Control Strategy for Induction Motor
The design and application of sliding mode control (SMC) techniques for an induction motor are the main topics of this research article. The main goal is to compare the performance of three different sliding surfaces and a proportionalintegral-derivative (PID) controller with other SMC controllers. The study examines how the PID and SMC controllers react to a variety of operational circumstances, such as load disturbances and parameter changes. The simulation results show the benefits and drawbacks of each controller, giving important information about how SMC approaches can be used for induction motor control. This study adds to the body of knowledge in the field of control systems by offering a thorough examination of various sliding mode control schemes for induction motor applications.
An Enhanced Sliding Mode Speed Control for Induction Motor Drives
Actuators, 2022
In this paper, an enhanced Integral Sliding Mode Control (ISMC) for mechanical speed of an Induction Motor (IM) is presented and experimentally validated. The design of the proposed controller has been done in the d-q synchronous reference frame and indirect Field Oriented Control (FOC). Global asymptotic speed tracking in the presence of model uncertainties and load torque variations has been guaranteed by using an enhanced ISMC surface. Moreover, this controller provides a faster speed convergence rate compared to the conventional ISMC and the Proportional Integral methods, and it eliminates the steady-state error. Furthermore, the chattering phenomenon is reduced by using a switching sigmoid function. The stability of the proposed controller under parameter uncertainties and load disturbances has been provided by using the Lyapunov stability theory. Finally, the performance of this control method is verified through numerical simulations and experimental tests, getting fast dynam...
A sliding mode speed control of an induction motor
American Journal of Applied …, 2007
Field-oriented control was combined to robust sliding mode for motor speed control. A smooth continuous function was added in order to overcome chattering caused by Sliding Mode Controller (SMC). Simulation results showed that improvement made by our approach compared to classical PID control.
A Comparative Study of Nonlinear Control Schemes for Induction Motor Operation Improvement
International Journal of Robotics and Control Systems
In the objective of improving the performance of induction motor operation and ensuring a robust control against different uncertainties and external disturbances, especially at low-speed regions, this research highlights the main features of two nonlinear control techniques. First, the control design is based on the backstepping approach (BSA) with integral action, and then the sliding mode control (SMC) theory. The BSA principle is to define successive causal relations in order to construct the control law in a recursive and systematic way. This allows overcoming the obstacle of the higher-order system's dimension. SMC is designed to drive and then constrain the system state to lie within a neighborhood of the switching surface, this provides very strong and inherent robustness to the resulting controllers. The main reason behind developing the nonlinear control techniques is to ensure a decoupled control of the machine. Besides, it guarantees the stability of the overall syst...
Improvement in Speed Performance of an Induction Motor with Sliding Mode Controller and Ann for DTC
2020
To further improve the dynamic speed control performance of an induction motor (IM) using a controller based on sliding mode control (SMC) strategy, the switching table for direct torque control (DTC) is realized using a feed forward artificial neural network (ANN). The proposed feed-forward ANN consists of three layers: input, hidden and output layer. The input layer consists of three neurons (sector of flux vector, electromagnetic torque error and stator flux error), the hidden layer consists of a number of neurons that can be determined by experiment to obtain good results. The output layer consists of three neurons (three signals of the converter Sa, Sb and Sc). Simulation results under MATLAB environment are presented and compared with classical DTC using an Integral-proportional (IP) controller to verify the proposed approach.
Studies in Computational Intelligence, 2014
The induction motor squirrel cage that is deemed by its strength, high torque mass, and its relatively low cost ... etc, meanwhile, it benefited from the support of industry since its invention. Despite these advantages, the induction motor has complex dynamic systems that exhibit a strong nonlinearity, which makes them difficult to be controlled. The use of control algorithms is therefore desirable that both stabilization trajectory tracking. This paper seeks to analyze dynamical performances and sensitivity to motor parameter changes of two techniques of induction motor, Sliding Mode Control and Field Oriented Control. Comparison between the two techniques is made through computer simulations.
Simulation of Linear Induction Motor Using Sliding Mode Controller Technique
ABSTRACT:In the present paper, the mover speed control of a linear induction motor (LIM) using a sliding mode control design is proposed. First, the indirect field-oriented control LIM is derived. The sliding mode control design is then investigated to achieve speed- and flux-tracking under load thrust force disturbance. The numerical simulation results of the proposed scheme present good performances in comparison to that of the classical sliding mode control.In the present paper, a sliding mode controller based onindirect field orientation is proposed for LIM speed controlwhile considering end effects. The proposed controller isapplied to achieve a speed- and flux-tracking objectiveunder parameter uncertainties and disturbance of loadthrust force.
A Sliding Mode Controller for a Three Phase Induction Motor
In this paper, a sliding mode controller (SMC) is designed to control the speed of an induction motor fed by three phase voltage source inverter based on space vector pulse width modulation (SVPWM) technique. The sliding mode controller is a nonlinear controller. The space vector pulse width modulation technique is advanced pulse width modulation (PWM) technique. The proposed scheme enables us to adjust the speed of the motor by controlling the frequency and amplitude of the stator voltage; the ratio of the stator voltage to the frequency should be kept constant. Simulation results show the validation of the proposed scheme.