Results 11 to 20 of about 2,619 (292)
MRAS Observer for Sensorless Control of Standalone Doubly Fed Induction Generators
IEEE Transactions on Energy Conversion, 2005 This paper presents an analysis of a model reference adaptive system (MRAS) observer for the sensorless control of a standalone doubly fed induction generator (DFIG). The analysis allows the formal design of the MRAS observer of given dynamics and further allows the prediction of rotor position estimation errors under parameter mismatch.
Cardenas, R +4 more
openaire +5 more sources
MRAS Observer for Doubly Fed Induction Machines
IEEE Transactions on Energy Conversion, 2004 In this paper, a model reference adaptive system (MRAS) observer for sensorless vector control of doubly-fed induction machines is presented. A small-signal model is developed and a 3-kW experimental setup is used to validate the strategy. The experimental results show the high level of performance obtained with the proposed sensorless scheme.
Cardenas, R +4 more
openaire +5 more sources
Sensorless Control of Doubly-Fed Induction Generators Using a Rotor-Current-Based MRAS Observer
IEEE Transactions on Industrial Electronics, 2008 This paper presents a new sensorless method for the vector control of doubly-fed induction machines (DFIMs) without using speed sensors or rotor position measurements. The proposed sensorless method is based on the model reference adaptive system (MRAS) estimating the rotor position and speed from the machine rotor currents.
Pena, Ruben +4 more
openaire +5 more sources
Applied Sciences, 2023 Aiming at the problem that online parameter identification, based on the Model Reference Adaptive System (MRAS), is easily affected by the high-frequency noise of the sensor, an improved MRAS, based on variable bandwidth linear Active Disturbance ...
Xin Qi +4 more
doaj +1 more source
Sensorless Control for the EVT-Based New Dual Power Flow Wind Energy Conversion System
Energies, 2017 The dual power flow wind energy conversion system (DPF-WECS) is a novel system which is based on the electrical variable transmission (EVT) machine. The proposed sensorless control for the DPF-WECS is based on the model reference adaptive system (MRAS ...
Ying Zhu, Ming Cheng, Haixiang Zang
doaj +1 more source
Self-Tuning Observer for Sensor Fault-Tolerant Control of Induction Motor Drive
Energies, 2021 This paper introduces a new solution for the speed and current sensor fault-tolerant direct field-oriented control of induction motor drives. Two self-adjusting observers derived from a modified current-based model reference adaptive system (CB-MRAS) are
Martin Kuchar +3 more
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An implementation of rotor speed observer for sensorless induction motor drive in case of machine parameter uncertainty [PDF]
, 2018 The paper describes observers using model reference adaptive system for sensorless induction motor drive with the pulse width modulator and the direct torque control under the circumstances of incorrect information of induction motor parameters.
Brandštetter, Pavel +3 more
core +3 more sources
A Composite Variable Structure PI Controller for Sensorless Speed Control Systems of IPMSM
Energies, 2022 In the speed control system of an Interior Permanent Magnet Synchronous Motor (IPMSM) without a speed sensor, PI controllers using only a fixed set of parameters cannot achieve accurate tracking of the estimated speed in a wide speed domain and also ...
Weidong Feng +3 more
doaj +1 more source
Alexandria Engineering Journal, 2013 Sensorless induction motor (IM) drives are widely used in industry for their reliability and flexibility, particularly in hostile environment. However, the performance of many of previously developed observer based speed sensors in very low speeds of IM ...
M.K. Metwally
doaj +1 more source
A Novel Algorithm for Rotor Speed Estimation of DFIGs Using Machine Active Power based MRAS Observer [PDF]
Journal of Operation and Automation in Power Engineering, 2018 This paper presents a new algorithm based on Model Reference Adaptive System (MRAS) and its stability analysis for sensorless control of Doubly-Fed Induction Generators (DFIGs).
R. Ajabi-Farshbaf +2 more
doaj +1 more source