Walsh series modeling and estimation in sensorless position control of electrical drives

Authors

HAMIDREZA SHIRAZI
JALAL NAZARZADEH

DOI

10.3906/elk-1305-110

Abstract

High-performance electrical drives can be achieved by using field-oriented controllers, which make torque and flux naturally decoupled. A conventional vector-controlled drive has the disadvantage of either requiring flux and speed sensors or being affected by rotor resistance, which varies along with the motor performance. The presented paper focuses on developing a high-performance sensorless rotor flux-oriented controller of an induction machine independent of the rotor resistance variation. This method applies spectral theory of Walsh functions, which are one of the most helpful members of piecewise constant basis functions in solving dynamic models. Inherent characteristics of Walsh functions and application of an operational matrix will make the system handy and robust against inverter switching effects.

Keywords

Induction machine, vector control, parameter estimation, position control, sensorless control, spectral analysis, Walsh series

First Page

849

Last Page

862

Recommended Citation

SHIRAZI, HAMIDREZA and NAZARZADEH, JALAL (2016) "Walsh series modeling and estimation in sensorless position control of electrical drives," Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 24: No. 3, Article 11. https://doi.org/10.3906/elk-1305-110
Available at: https://journals.tubitak.gov.tr/elektrik/vol24/iss3/11