Paper Info
Title
Extended Kalman filter based speeds estimation of series-connected five-phase two-motor drive system
Abstract
The multi-phase machines enables independent control of a few number of machines that are connected in series in a particular manner, and the supply is fed from a single voltage source inverter (VSI). The idea was first implemented for a five-phase series-connected two-motor drive system, but is now applicable to any number of phases. The number of series-connected machines is a function of the phase number of VSI. Variable speed induction motor drives without mechanical speed sensors at the motor shaft have the attractions of low cost and high reliability. To replace the sensor, information of the rotor speed is extracted from measured stator currents and voltages at motor terminals. Open-loop estimators or closed-loop observers are used for this purpose. They differ with respect to accuracy, robustness, and sensitivity against model parameter variations. This paper analyses operation of an EKF-based sensorless control of vector controlled series-connected two-motor five-phase drive system with current control in the stationary reference frame. Results, obtained with fixed voltage and fixed frequency supply fed and hysteresis current control, is presented for various operating conditions on the basis of simulation. The purpose of this paper is to report first time, the simulation results on a sensorless control of a five-phase two-motor series-connected drive system using EKF estimator.
Year
DOI
Venue
2009
10.1016/j.simpat.2009.05.007
Simulation Modelling Practice and Theory
Keywords
DocType
Volume
Five-phase motor,Multi-phase multi-motor drives,Vector control,EKF estimator
Journal
17
Issue
ISSN
Citations 
7
1569-190X
2
PageRank 
References 
Authors
0.40
1
2
Name
Order
Citations
PageRank
M. Rizwan Khan120.40
Atif Iqbal24022.35