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Data-Driven Non-Linear Current Controller Based on Deep Symbolic Regression for SPMSM
Usama, Muhammad ; Lee, In-Young
Sensors (Basel, Switzerland), 2022-10, Vol.22 (21), p.8240
[Periódico revisado por pares]
MDPI AG
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Título:
Data-Driven Non-Linear Current Controller Based on Deep Symbolic Regression for SPMSM
Autor:
Usama, Muhammad
;
Lee, In-Young
Assuntos:
Algorithms
;
closed-loop control
;
data fitting expression
;
deep learning
;
deep symbolic optimization
;
Magnets, Permanent
;
metaheuristic algorithm
;
symbolic regression
É parte de:
Sensors (Basel, Switzerland), 2022-10, Vol.22 (21), p.8240
Notas:
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição:
This study designs a simple current controller employing deep symbolic regression (DSR) in a surface-mounted permanent magnet synchronous machine (SPMSM). A novel DSR-based optimal current control scheme is proposed, which after proper training and fitting, generates an analytical dynamic numerical expression that characterizes the data. This creates an understandable model and has the potential to estimate data that have not been seen before. The goal of this study was to overcome the traditional linear proportional–integral (PI) current controller because the performance of the PI is highly dependent on the system model. Moreover, the outer speed control loop gains are tuned using the cuckoo search algorithm, which yields optimal gain values. To demonstrate the efficacy of the proposed design, we apply the control design to different test cases, that is varied speed and load conditions, as well as sinusoidal speed reference, and compare the results with those of a traditional vector control design. Compared with traditional control approaches, we deduce that the DSR-based control design could be extrapolated far beyond the training dataset, laying the foundation for the use of deep learning techniques in power conversion applications.
Editor:
MDPI AG
Idioma:
Inglês
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