Displacement Self-sensing of Bearingless Switched Reluctance Motors Based on LS-SVM

• Autorzy: Zhu Z. , Sun Y. , Huang Y. , Ji X.

Warianty tytułu

PL

Zastosowanie metody LS-SVM w określaniu przemieszczenia w bezłożyskowym silniku o przełączanej reluktancji BSRM

• Języki publikacji: EN

Abstrakty

EN

To achieve the rotor radial displacement self-sensing for a bearingless switched reluctance motor (BSRM), a new displacement estimation method using least squares support vector machine (LS-SVM) was proposed. Firstly, the working principle and mathematic of a 3-phase 12/8 pole BSRM was introduced in brief. Then taking advantage of LS-SVM with better solution for small-sample learning problem and strong generalization ability, two LS-SVMs were trained off-line to obtain two efficient nonlinear mapping structures to express the dynamic behavior of BSRM. The LSSVM training data set is comprised of representative experimental data with current {i | i = (isa1, isa2, ima)} and rotor position θ as inputs and the corresponding displacements {D | D=(α , β )}as outputs. As well as giving a detailed explanation of the new method, simulation and experimental results were presented. It shows that the proposed LS-SVM-based displacement self-sensing method has high precision and operation efficiency.

PL

W artykule przedstawiono uczący się estymator przesunięcia dla bezłożyskowego silnika o przełączanej reluktancji (BSRM), wykorzystujący metodę LS-SVM (ang. Least Square Support Vector Machines). Opisano zasadę działania i model matematyczny silnika BSRM 3- fazowego 12/8 biegunowego. W celu uzyskania efektywnej struktury mapowania nieliniowego do określenia stanów dynamicznych, zastosowano dwa algorytmy, które zostały nauczone offline. Estymator poddano weryfikacji symulacyjnej i eksperymentalnej.

Słowa kluczowe

EN

Bearingless Motors; switched reluctance motors; least squares support vector machine; Self-sensing

PL

silniki bezłożyskowe; silniki o przełączanej reluktancji; LS-SVM

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2012
• Tom: R. 88, nr 12a
• Strony: 310--313
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Zhu Z.

autor

Sun Y.

autor

Huang Y.

autor

Ji X.

• School of Electrical and Information Egineering, Jiangsu University, Zhenjiang 212013 China,

Bibliografia

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