scholarly journals Control Strategies for Induction Motors in Railway Traction Applications

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 700
Author(s):  
Ahmed Fathy Abouzeid ◽  
Juan Manuel Guerrero ◽  
Aitor Endemaño ◽  
Iker Muniategui ◽  
David Ortega ◽  
...  
Keyword(s):  
Induction Motors ◽  
Control Strategies ◽  
Dynamic Performance ◽  
Machine Design ◽  
Modes Of Operation ◽  
Traction Drive ◽  
Extensive Simulation ◽  
Railway Traction ◽  
Simulation Results ◽  
Modulation Methods

This paper analyzes control strategies for induction motors in railway applications. The paper will focus on drives operating with a low switching to fundamental frequency ratio and in the overmodulation region or six-step operation, as these are the most challenging cases. Modulation methods, efficient modes of operation of the drive and the implications for its dynamic performance, and machine design will also be discussed. Extensive simulation results, as well as experimental results, obtained from a railway traction drive, are provided.

Effects of Actuators and Sensors Position on Independent Modal Control Performance

2012 ◽  
Author(s):  
Simone Cinquemani ◽  
Ferruccio Resta
Keyword(s):  
Natural Frequencies ◽  
Acoustic Noise ◽  
Dynamic Performance ◽  
Active Vibration Control ◽  
Spillover Effects ◽  
Point Of View ◽  
Control Technique ◽  
Modal Control ◽  
Sensors And Actuators ◽  
Active Vibration

Independent modal control technique allows to change the eigenvalues of a system, without changing its eigenvectors. From a mechanical point of view, it means it is possible to modify the natural frequencies and the damping of a n-DoF system, letting modal shapes unchanged. Independent modal control can be profitably used in active vibration control increasing the damping of the system without changing its natural frequencies and vibration modes. A control of this type can improve the dynamic performance, reduce the vibratory phenomenon (and the resulting acoustic noise) and increase the fatigue strength of the system. This work demonstrates how the performance of the control depends on the number and position of sensors and actuators used besides, obviously, on the reduced model used to synthesize the control itself. Finally the paper suggests a simple optimum function to minimize the spillover effects due to unmodeled modes. Theoretical aspects are supported by numerical simulations.

The Solution of Directed D-Axis Current for the Bearingless Induction Motors

2013 ◽  
Vol 779-780 ◽  
pp. 711-715
Author(s):  
Yan Jun Yu ◽  
Xian Xing Liu
Keyword(s):  
Time Delay ◽  
Magnetic Force ◽  
Induction Motors ◽  
Levitation Force ◽  
Dynamic Performance ◽  
Electromagnetic Torque ◽  
Direct Solution ◽  
Simulation Results ◽  
Stator Flux ◽  
Stator Flux Oriented

The control of nonlinear decoupling between the electromagnetic torque and radial levitation force is the key of the stable suspend operation of bearingless induction motor. An optimized algorithm for stator flux oriented control with direct solution of d-axis current is proposed. This method overcomes the problems that the conventional stator flux oriented control which must work with decouple regulator and is influenced by time-delay of decouple regulator. The control of suspend model imports the feedback control of unilateral magnetic-force to reduce the errors about the delay and interference of system. The simulation results show that the motor has excellent dynamic performance and stability.

scholarly journals Technological Advances of Speed Control of Induction Motor with PI and Fuzzy Logic Controllers

2020 ◽  
Vol 8 (6S) ◽  
pp. 41-45
Keyword(s):  
Fuzzy Logic ◽  
Induction Motor ◽  
Fuzzy Logic Controller ◽  
Induction Motors ◽  
Control Technique ◽  
Fuzzy Logic Controllers ◽  
Technological Advances ◽  
Three Phase ◽  
Soft Computing Techniques ◽  
Recent Trends

At the present scenario, three-phase induction motors (IM) are having wide applications in the industries. So, the need for an effective controlling technique is compulsory. Various techniques are there to control the speed of IM. Soft computing techniques are having in a great improvement in the recent trends. This paper discusses on the scalar control technique of induction motor for conventional PI and fuzzy logic controller. The performance of an induction motor is simulated using MATLAB/Simulink with PI and fuzzy controllers, the results are analyzed and the techno feasibility of both the controllers is presented in detail. Torque-speed (T-N) characteristics of an induction motor for a traditional PI model are considered and compared with rules-based fuzzy logic

Landsman Converter Based Particle Swarm Optimization Technique

2017 ◽  
Vol 8 (3) ◽  
pp. 619
Author(s):  
Ramesh P. ◽  
V. Mathivanan
Keyword(s):  
Particle Swarm Optimization ◽  
Pid Controller ◽  
Dynamic Performance ◽  
Optimization Technique ◽  
Particle Swarm ◽  
Pso Algorithm ◽  
Control Technique ◽  
Swarm Optimization ◽  
Particle Swarm Optimization Technique ◽  
Comparative Results

This paper proposes a novel control technique for landsman converter using particle swarm optimization. The controller parameters are optimized by pso algorithm,the proposed algorithm is compared with pid controller and the comparative results are presented. Simulation results shows the dynamic performance of pso controller. landsman converter reduction in output voltage ripple in the order of mV along with reduced settling time as compared to the conventional pid controller . The simulated results are executed in MATLAB/SIMULINK.

Application and Simulation of SVPWM Control Techniques in Three-Phase PV Grid-Connected Inverter

2013 ◽  
Vol 415 ◽  
pp. 81-88
Author(s):  
Yang Xue ◽  
Yuan Li ◽  
Jia Dong Zhang ◽  
Jing Lin ◽  
Jun Tao Yang
Keyword(s):  
Pulse Width Modulation ◽  
Control Method ◽  
Dynamic Performance ◽  
Control Technique ◽  
Pi Control ◽  
Loop Control ◽  
Control Techniques ◽  
Three Phase ◽  
Grid Connected Inverter ◽  
Pv Grid

The space vector pulse width modulation (SVPWM), as a new kind of vector control technique, has the advantages of high voltage utilization, less distorted output, simple control method, etc. In this paper, the control technique is applied to three-phase photovoltaic (PV) grid-connected inverter system. It uses double loop control method combined with PI control technique. The simulation model of PV grid-connected inverter system is established in Matlab/Simulink. The simulation results show that the application of SVPWM technique effectively improves the dynamic performance of PV grid inverter system and the THD of grid-connected current is low.

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