Modified active power-MRAS for limited range variable speed sensorless brushless doubly-fed reluctance machine drive
ISSN: 0332-1649
Article publication date: 21 July 2022
Issue publication date: 20 January 2023
Abstract
Purpose
This paper aims to suggest a parameter independent and simple speed estimator for primary field-oriented control of a promising electro-mechanical energy conversion device in the form of brushless doubly-fed reluctance machine (BDFRM) drive.
Design/methodology/approach
The speed estimation algorithm, in this context, is formulated using a modified secondary winding active power (mPs)-based model reference adaptive system (MRAS). The performance of the proposed estimator is verified through computer aided MATLAB simulation study, compared with conventional active power-based MRAS and further supported with experimental validation using a 1.6 kW BDFRM prototype run by a dSPACE-1103 controller.
Findings
The formulation of mPs-MRAS is insensitive to any machine parameters and does not involve any integration/differentiation terms. Thus, any deviation therein does not hinder the performance of the mPs-MRAS-based speed estimator. The proposed speed estimator shows stable behavior for variable speed-constant load torque operation in all the four quadrants.
Originality/value
The formulation of mPs-MRAS is insensitive to any machine parameter and does not involve any integration/differentiation terms.
Keywords
Acknowledgements
The work has been supported by SERB, GOI under grant no. CRG-2019–000384.
Citation
Kumar, M. and Das, S. (2023), "Modified active power-MRAS for limited range variable speed sensorless brushless doubly-fed reluctance machine drive", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 42 No. 2, pp. 425-448. https://doi.org/10.1108/COMPEL-12-2021-0497
Publisher
:Emerald Publishing Limited
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