Authors : M. Nandhini Gayathri, S. Himavathi and R. Sankaran
Abstract: The advent of fast computing digital processors has made vector controlled induction motor drives realisable and its applications have increased manifold. For performance enhancement, it is essential to accurately estimate the parameters of the induction motor. On line estimation of parameters continue to be challenging. This study presents a review of the developments in the field during the last two decades. A large number of research studies have been published during the above period, proposing different techniques for estimation of rotor and stator resistances. Among the two, the rotor resistance is more sensitive to temperature rise and ageing and therefore has a critical impact on detuning of the control algorithm. Hence in comparison, only limited researches have dealt with stator resistance estimation. This review covers the well accepted methods of parameter estimation namely spectral analysis, observer based techniques, model reference adaptive system and intelligent techniques. Attempt is made to provide a precise and quick reference for the researchers and practising engineers working in the area of vector control.
M. Nandhini Gayathri, S. Himavathi and R. Sankaran, 2011. Parameter Estimation for Performance Enhancement of Indirect Field Oriented Induction Motor Drives: A Survey. International Journal of Electrical and Power Engineering, 5: 65-73.