Dynamic performance of single inverter fed parallel induction motors

2015 ◽  
Author(s):  
Mohsen Ghorbanali Afje
Keyword(s):  
Induction Motors ◽  
Dynamic Performance

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.

Analysis of dynamic performance of induction motors in control systems

1964 ◽  
Vol 111 (11) ◽  
pp. 1949
Author(s):  
G.J. Rogers ◽  
J.C. West ◽  
B.V. Jayawant ◽  
G. Williams
Keyword(s):  
Control Systems ◽  
Induction Motors ◽  
Dynamic Performance

Speed Control of 3-phase Induction Motors under Fault Conditions Supplied by Wind Turbine Using Indirect Vector Control

2017 ◽  
Vol 8 (1) ◽  
pp. 222
Author(s):  
Mohammad Jannati ◽  
Solieman Eskandari ◽  
Tole Sutikno
Keyword(s):  
Wind Turbine ◽  
Vector Control ◽  
Pulse Width Modulation ◽  
Induction Motors ◽  
Dynamic Performance ◽  
Speed Control ◽  
Open Circuit ◽  
Performance Validity ◽  
Speed Sensor ◽  
Torque Pulsations

This article studies speed control of 3-phase Induction Motors (IMs) under fault conditions supplied by wind turbine using Indirect Vector Control (IVC). The wind turbine plays as a prime mover to a connected DC generator. Pulse Width Modulation (PWM) is used to obtain 3-phase AC voltage from the DC generator output. The proposed modified controller is able to control a star-connected 3-phase IM under normal, stator winding open-circuit fault and speed-sensor fault conditions. Simulation results are presented and shown the performance, validity and possibility of the proposed technique. The results demonstrate that, the proposed scheme provides good dynamic performance especially in reduction of IM speed and torque pulsations.

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.

scholarly journals Simulation Study of Two Torque Optimization Methods for Direct Torque-Controlled Induction Motors

2019 ◽  
Vol 9 (24) ◽  
pp. 5547
Author(s):  
Hani Albalawi ◽  
Sherif A. Zaid ◽  
Yonis M. Buswig
Keyword(s):  
Induction Motors ◽  
Dynamic Performance ◽  
Direct Torque Control ◽  
Optimization Methods ◽  
Torque Control ◽  
The Other ◽  
Voltage Vector ◽  
Torque Response ◽  
Parameter Variations ◽  
Dynamic Performances

The simplicity and excellent dynamic performance of Direct Torque Control (DTC) make Induction Motor (IM) drives attractive for many applications that require precise torque control. The traditional version of DTC uses hysteresis controllers. Unfortunately, the nature of these controllers prevents the optimization of the inverter voltage vectors inside the flux hysteresis band. The inverter voltage vector optimization can produce fast torque response of the IM drive. This research proposes two torque optimization methods for IM systems utilizing DTC. Analysis and Matlab simulations for the proposed optimization methods prove that the torque and, consequently, the speed responses, are greatly improved. The performances of the drive system controlled by the proposed optimization methods and the traditional DTC are compared. Conversely, the effects of the parameters on the proposed optimization methods are introduced. The proposed methods greatly improve the torque and speed dynamic performances against the traditional DTC technique. However, one of the proposed optimization methods is more sensitive to IM parameter variations than the other.

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