Proceedings ArticleDOI
Dynamic performance analysis of MRAS based speed estimators for speed sensorless induction motor drives
S. Mohan Krishna,J. L. Febin Daya +1 more
- pp 1-6
TLDR
In this article, the three most popular configurations of MRAS speed estimators, i.e., Rotor Flux, Back-EMF and Instantaneous Reactive power, are analyzed for different values of Load torque perturbations and is limited to medium and high speed range only.Abstract:
MRAS estimators have become increasingly popular due to their ease of computational usage, flexibility and accurateness in determining the rotor speed of induction motors without speed sensors mounted on the shaft. This paper considers the three most popularly used configurations of MRAS Speed Estimators i.e., Rotor Flux, Back-EMF and Instantaneous Reactive power. The dynamic performance of the same is analyzed for different values of Load torque perturbations and is limited to medium and high speed range only. A mathematical model is presented for each estimator and an equivalent simulink model is built and the results are analyzed and inferences are drawn.read more
Citations
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Journal ArticleDOI
Modified Reference Model for Rotor Flux-Based MRAS Speed Observer Using Neural Network Controller
TL;DR: In this article, the low speed performance of rotor flux-based model reference adaptive system (MRAS) is due to the presence of integrator and parameter variation with temperature, and to improve low speed perform...
Proceedings ArticleDOI
A comparative study on the performance of interleaved converters for EV battery charging
Shivam Prabhakar,Febin Daya J L +1 more
TL;DR: In this paper, a comparison of different interleaved boost converter topologies which are used in front end ac-dc conversion for EV charging is presented and interpreted for three different converters to convert acdc and get a voltage of 430 V.
Journal ArticleDOI
Speed sensorless control of a bearingless induction motor based on sliding mode observer and phase-locked loop.
TL;DR: In this paper, a speed sensorless control strategy combined with the improved sliding mode observer (SMO) and phase locked-loop (PLL) is proposed to realize the low-cost and high-performance of a bearingless induction motor.
Journal ArticleDOI
Fuzzy logic based adaptation mechanism for MRAS based speed estimators
TL;DR: A fuzzy logic controller (FLC) is proposed for the adaptation mechanism of speed estimators to be used in induction motor drive and the drive performance is investigated with speed estimator for closed loop operation on various working conditions.
Journal ArticleDOI
Speed sensorless control of a bearingless induction motor based on sliding mode observer and phase-locked loop
TL;DR: In this article , a speed sensorless control strategy combined with the improved sliding mode observer (SMO) and phase locked-loop (PLL) is proposed to realize the low-cost and high-performance of a bearingless induction motor.
References
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Book
Modern Power Electronics And Ac Drives
TL;DR: In this paper, the authors present a simulation of a six-step Thyristor Inverter with three-level Inverters and three-phase Bridge Invergers. And they present a Neural Network in Identification and Control toolbox.
Proceedings ArticleDOI
Robust speed identification for speed sensorless vector control of induction motors
Fang-Zheng Peng,Tadashi Fukao +1 more
TL;DR: In this article, a new approach to estimate induction motor speed from measured terminal voltages and currents for speed-sensorless vector control is described. But this approach is not dependent upon the knowledge of the value of the stator resistance, nor is it affected by stator resist thermal variations.
Journal ArticleDOI
Stator-Current-Based MRAS Estimator for a Wide Range Speed-Sensorless Induction-Motor Drive
TL;DR: The allowable range of motor-parameter changes is determined, which guarantees the stable operation of the sensorless field-oriented IM drive with this speed and flux estimator, and the stability of the whole drive system is guaranteed.
Proceedings ArticleDOI
MRAS-based speed sensorless control for induction motor drives using instantaneous reactive power
TL;DR: In this article, the authors proposed a MRAS-based speed estimation scheme for IM drives using instantaneous reactive power, which has a superior robustness to the parameter variations as compared to other MRASbased techniques proposed in literature.
Proceedings ArticleDOI
Simulation of MRAS-based Speed Sensorless Estimation of Induction Motor Drives using MATLAB/SIMULINK
TL;DR: The dynamic response of the RF-MRAS and BEMF- MRAS sensorless speed estimation is examined in order to evaluate the performance of each scheme.