Bi input-extended Kalman filter based speed-sensorless direct torque control of IMs
Küçük Resim Yok
Tarih
2010
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This study presents bi input-extended Kalman filter (BI-EKF) based speed-sensorless direct torque control (DTC) of induction motors (IMs). For this aim, all states required for the speed-sensorless control system as well as commonly known parameter uncertainties related to stator resistance R s, rotor resistance R'r, and load torque t L including also viscous friction term have been estimated by using BI-EKF for a wide speed range. BI-EKF uses a single EKF algorithm with consecutive operation of two inputs obtained from two extended IM models developed for the simultaneous estimation of R'r and R s; thus, it has an advantage over previous EKF based studies utilizing two separate EKF algorithms for the same purpose. By assuming that stator phase voltages and currents are available, the proposed control system has been tested with the instantaneous step and/or linear variations of the velocity reference, tL, Rs, and R'r in simulations. In spite of those challenging variations, the control system performs quite well. ©2010 IEEE.
Açıklama
19th International Conference on Electrical Machines, ICEM 2010 -- 6 September 2010 through 8 September 2010 -- Rome -- 82728
Anahtar Kelimeler
Extended Kalman filter, Induction motor, Load torque estimation, Rotor and stator resistance estimation, Sensorless control, Zero speed operation
Kaynak
19th International Conference on Electrical Machines, ICEM 2010
WoS Q Değeri
Scopus Q Değeri
N/A
