Estimation of harmonics in VSI-fed induction motor drives using Kalman filtering algorithm and extended Kalman filtering algorithm Online publication date: Mon, 14-Dec-2015
by Ranjan Kumar Mallick; Pravati Nayak; Akash Hota
International Journal of Power and Energy Conversion (IJPEC), Vol. 6, No. 4, 2015
Abstract: The existence of harmonics in any power system is increasingly drawing attention due to wide applications of power electronic devices. These harmonics are not desirable because they degrade power quality and lead to stability problems. In inverter fed drives, due to presence of harmonics produce pulsating torque and give rise to jerky motion of the motor. Traditional Kalman filter model shows some limitations in noisy environment. However, extended Kalman filter is a superior alternative to linear Kalman filter and more effective in tracking these harmonics in the presence of noisy data. In this paper, a model of Kalman filter is used for harmonic estimation in 'VSI-fed induction motor drives' and the validity of simulation results was compared using an extended Kalman filter. The results show that the proposed extended Kalman filter (EKF) is a robust and accurate method of measurement of harmonic amplitudes and phase angles for the time-varying power signals.
Online publication date: Mon, 14-Dec-2015
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Power and Energy Conversion (IJPEC):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email firstname.lastname@example.org