Izvorni znanstveni članak
https://doi.org/10.7305/automatika.2016.01.852
Improved Torque Control of High Speed Shaft-Sensorless Induction Motor Drive
Petar R. Matić
; University of Banja Luka, Faculty of Electrical Engineering, 5 Patre, 78 000 Banja Luka, RS Bosnia and Herzegovina
Aleksandar Ž. Rakić
orcid.org/0000-0002-3682-1754
; University of Belgrade, School of Electrical Engineering, Bulevar Kralja Aleksandra 73, 11 000 Belgrade, Serbia
Darko P. Marčetić
; University of Novi Sad, Faculty of Technical Sciences, Trg D. Obradovica 4, 21 000 Novi Sad, Serbia
Slobodan N. Vukosavić
; University of Belgrade, School of Electrical Engineering, Bulevar Kralja Aleksandra 73, 11 000 Belgrade, Serbia
Sažetak
This paper presents improved torque control scheme for a high speed sensorless induction motor drive. The proposed high speed torque control scheme substitutes the flux oriented control by the voltage angle control in the flux weakening regime. This scheme uses maximum of available inverter voltage, alleviates well known problems of current control schemes in conditions with insufficient voltage margin and avoids the influence of estimated speed error to the achieved flux level. The algorithm uses similar slip control as flux oriented control algorithm, but is applied without an outer flux trajectory reference which is typical for the flux weakening, providing a fast and well damped torque response even if error in estimated speed is present. Experiments confirm the effectiveness of proposed torque control algorithm, smooth transition from the flux oriented control in the base speed region to the voltage angle control in the flux weakening, superior dynamic performance of the voltage angle torque control, and its robustness to an estimated rotor speed error.
Ključne riječi
High Speed Induction Motor; Toque Control; Voltage Angle Control
Hrčak ID:
154033
URI
Datum izdavanja:
19.2.2016.
Posjeta: 1.413 *