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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) KAMI MENGABDI
Mufit, Choirul
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Computer Science & IT Electrical & Electronics Engineering Energy Engineering Transportation

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Journal : IAES International Journal of Artificial Intelligence (IJ-AI)

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New disturbance observer-based speed estimator for induction motor Indriawati, Katherin; Pandu Wijaya, Febry; Mufit, Choirul
IAES International Journal of Artificial Intelligence (IJ-AI) Vol 13, No 3: September 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijai.v13.i3.pp3510-3522

Abstract

This paper discusses a novel disturbance observer designed as an estimator to determine the rotor speed of an induction motor. This observer is a solution to obtain a simple structure with a small number of compact observer gains. Furthermore, the adaptation law is no longer required to estimate induction motor speed values. This is a machine model-based computation method that uses a stationary reference frame. The nonlinearity problem is solved using an additional state vector in the observer model, which is known as an extended state observer. This approach easily and systematically determines the observer gain by applying the linear quadratic regulator (LQR) method, thereby avoiding time-consuming trial errors. The proposed observer, which was presented in both continuous and discrete forms, was tested using a sensorless V/f- controlled induction motor. The simulation results show that the proposed observer can accurately estimate all states, namely, the rotor flux and stator current; therefore, the proposed estimator provides the speed and electromagnetic torque for a wide operational range of speeds and load torques. It was also shown that the proposed observer was robust to noise and uncertainty in induction motor parameters.
Co-Authors abriantoro, adji putra Ahmad Rofii Danuarta, Thony Firdasa Sembiring, Silsila Jana gunawan, setia Hamdala, Marcia Rizky Karlina, Diyajeng Luluk Katherin Indriawati Khana, Rajes Manurung, Elyezer Marolop, Gottlieb Muhammad Sobirin Pandu Wijaya, Febry Santoso, Kukuh Aris Sinaga, Muktar Sundara, Denny Magni Tiorivaldi, Tiorivaldi