An interconnected high-gain observer and a flux estimator are presented for the elucidation of the angular speed and load torque of an induction motor. Because of observation difficulties at low frequencies, both the observer and the estimator are tested and validated against reference trajectories derived using a proposed benchmark. This is true even in the case where the motor state is unobservable. Experimental results to validate the proposed benchmark criteria are presented.
References
-
-
1)
-
C. Schauder
.
Adaptive speed identification for vector control of induction motors without rotational transducers.
IEEE Trans. Ind. Appl.
,
5 ,
1054 -
1061
-
2)
-
H. Tajima ,
Y. Hori
.
Speed sensorless field-orientation control of the induction machine.
IEEE Trans. Ind. Appl.
,
1 ,
175 -
180
-
3)
-
www.irccyn.ec-nantes.fr/hebergement/BancEssai/, (accessed September 2004).
-
4)
-
J. Chiasson
.
Non linear controllers for induction motors.
Presented at the IFAC Conf. on System Structure and Control
-
5)
-
Hammouri, H., DeLeon, J.: `Observer synthesis for state-affine systems', Proc 29th IEEE Conf. on Decision and Control, 1990, Honolulu, HI, p. 784–785.
-
6)
-
K. Rajashekara ,
A. Kawamura ,
K. Matsue
.
(1996)
Sensorless control of AC motor control.
-
7)
-
G. Schreier ,
J. DeLeon ,
A. Glumineau
.
Cascade nonlinear observers: application to an experimental induction motor benchmark.
IEE Proc., Control Theory Appl.
,
6 ,
509 -
515
-
8)
-
Neves, F.A.S., Parma, G.G., Habetler, T.G., Menezes, B.R., Silva, S.R.: `An Evaluation of Sensorless Induction Motor Drives for Low Speed Operation', In. Congesso Brasileiro De Electrônica De Potência, 1999, Foz do Igraçu - PR Proceedings of COBEP99, Foz do Igraçu - PR SOBRAEP / CETEC-PR, 1999, p. 659–665.
-
9)
-
Canudas de Wit, C., Youssef, A., Barbot, J.P., Martin, P., Malrait, F.: `Observability conditions of induction motors at low frequencies', Presented at the IEEE Conf. on Decision and Control, December 2000, Sydney, Australia.
-
10)
-
X. Xu ,
D. Novotny
.
Implementation of direct stator flux orientation control on a matsuse DSP-based speed adaptive flux observer of induction motor.
IEEE Trans. Ind. Appl.
,
2 ,
344 -
348
-
11)
-
G. Besançon ,
H. Hammouri
.
On observer design for interconnected systems.
J. Math. Syst., Estimation Control
,
4
-
12)
-
H. Kubota ,
K. Matsuse ,
T. Nakano
.
DSP-based speed adaptive flux observer of induction motor.
IEEE Trans. Ind. Appl.
,
344 -
348
http://iet.metastore.ingenta.com/content/journals/10.1049/ip-cta_20045073
Related content
content/journals/10.1049/ip-cta_20045073
pub_keyword,iet_inspecKeyword,pub_concept
6
6