Infinite-time optimal feedback control of a 3-phase asynchronous motor exploiting a nonlinear finite element model

• Autorzy: Jedryczka Cezary , Stepien Sławomir , Demenko Andrzej , Nowakowski Mirosław

Identyfikatory

DOI

10.24425/aee.2024.152103

• Języki publikacji: EN

Abstrakty

EN

This paper presents modelling of a squirrel-cage induction motor and an optimal control method based on suboptimal control for nonlinear systems to minimise consumed energy and power losses in an induction motor drive. A coupled motor model with optimal control as a closed-loop integrated system is proposed. For modelling of the squirrel-cage asynchronous machine, a field-circuit-mechanical finite-element (FE) model is employed, in which mechanical motion is realised by a moving-mesh method and fixed mesh approach. For the control problem purpose, a surrogate induction motor model, described in a stationary rotor reference d–q frame, is applied. The optimal control is realised by a nonlinear feedback compensator method based on the state-dependent Riccati equation (SDRE) with an infinite time horizon with the surrogate model state-dependent parametrisation (SDP). To perform the control strategy, a SDRE technique with Moore–Penrose pseudoinverse is adopted. To improve the accuracy of the optimisation procedure, a finite element model was used to calculate the motor performance.

Słowa kluczowe

EN

finite element method; optimal control theory; state-dependent Riccati equations

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2024
• Tom: Vol. 73, nr 4
• Strony: 927--939
• Opis fizyczny: Bibliogr. 19 poz., rys., wykr., wz.

Twórcy

autor

Jedryczka Cezary

• Institute of Electrical Engineering and Electronics Poznan University of Technology, Piotrowo 3a, 60-965 Poznan, Poland

• https://orcid.org/0000-0001-5427-059X

autor

Stepien Sławomir

• Institute of Automatic Control and Robotics, Poznan University of Technology Piotrowo 3a, 60-965 Poznan, Poland

• https://orcid.org/0000-0001-7777-7684

autor

Demenko Andrzej

• Institute of Electrical Engineering and Electronics Poznan University of Technology, Piotrowo 3a, 60-965 Poznan, Poland

• https://orcid.org/0000-0002-0833-4561

autor

Nowakowski Mirosław

• Air Force Institute of Technology, Ksiecia Boleslawa St. 6, 01-494 Warsaw, Poland

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