Turkish Journal of Electrical Engineering and Computer Sciences
Walsh series modeling and estimation in sensorless position control of electrical drives
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.
Induction machine, vector control, parameter estimation, position control, sensorless control, spectral analysis, Walsh series
SHIRAZI, HAMIDREZA and NAZARZADEH, JALAL
"Walsh series modeling and estimation in sensorless position control of electrical drives,"
Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 24:
3, Article 11.
Available at: https://journals.tubitak.gov.tr/elektrik/vol24/iss3/11
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