Improved switching-EKF based field oriented control of induction motors

Yıl 2021, Cilt: 10 Sayı: 2, 545 - 552, 27.07.2021

Yunus Emre Altınışık Rıdvan Demir Murat Barut

https://doi.org/10.28948/ngumuh.899447

Cited By: 1

Öz

In this study, the speed-sensorless improved field oriented control (FOC)-based induction motor (IM) drive has been presented. In addition to the rotor fluxes and rotor mechanical speed required for speed-sensorless FOC, the load torque, the stator resistance, and the rotor resistance are estimated by the switching extended Kalman filter (S-EKF) with improved memory requirement and design stage which use the measured stator currents and voltages as inputs. The performance of FOC is improved by the feed-forward control of the estimated load torque. In addition, the estimation errors caused by the parameter variations are reduced with the estimations of the stator and rotor resistances. The proposed speed-sensorless IM drive is tested by challenging scenarios in simulations. The results obtained demonstrate that the improved FOC-based IM drive has a high performance.

Anahtar Kelimeler

Induction motor, Extended Kalman filter, Field-oriented control, Feed-forward control, State/parameter estimation

Asenkron motorların iyileştirilmiş anahtarlamalı-GKF tabanlı alan yönlendirmeli kontrolü

Öz

Bu çalışmada hız-algılayıcısız iyileştirilmiş alan yönlendirmeli kontrol (AYK) tabanlı asenkron motor (ASM) sürücüsü sunulmuştur. Hız-algılayıcısız AYK için gerekli olan rotor akıları ve rotor mekanik hızına ek olarak yük momenti, stator direnci ve rotor direnci giriş olarak ölçülen stator akım ve gerilimlerini kullanan hafıza gereksinimi ve tasarım aşaması iyileştirilmiş anahtarlamalı genişletilmiş Kalman filtresi (A-GKF) kullanılarak kestirilmiştir. Kestirilen yük momentinin ileri beslemeli kontrolü ile AYK’nın başarımı iyileştirilmiştir. Buna ek olarak parametre değişimlerinden kaynaklanan kestirim hataları stator ve rotor dirençlerinin kestirimi ile azaltılmıştır. Önerilen hız-algılayıcısız ASM sürücü zorlayıcı senaryolar ile benzetim ortamında test edilmiştir. Elde edilen sonuçlar, iyileştirilmiş AYK tabanlı ASM sürücüsünün yüksek başarıma sahip olduğunu göstermektedir.

Anahtar Kelimeler

Asenkron motor, Genişletilmiş Kalman fitresi, Alan yönlendirmeli kontrol, İleri beslemeli kontrol, Durum/parametre kestirimi

Kaynakça

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