Robust torque control design for induction motors: The minimum energy approach

This paper presents two different aspects concerning the control design laws for induction motors: (1) it derives state operating points (steady-state values for currents and fluxes) parameterized in terms of the desired motor torque, defining minimum-energy operation conditions for the electrical m...

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Bibliographic Details
Published inAutomatica (Oxford) Vol. 33; no. 1; pp. 63 - 79
Main Authors De Wit, C.Canudas, Seleme, Seleme I.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 1997
Elsevier
Subjects
AC-machines
Applied sciences
Electrical engineering. Electrical power engineering
Electrical machines
energy minimization
Exact sciences and technology
Regulation and control
torque control
torque control
AC-machines
energy minimization
Robust control
Stability
Torque regulation
Induction machine
Control system
Lyapunov method
Feedback regulation
System design
Alternating current machine
Minimum energy
State space method
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Summary:This paper presents two different aspects concerning the control design laws for induction motors: (1) it derives state operating points (steady-state values for currents and fluxes) parameterized in terms of the desired motor torque, defining minimum-energy operation conditions for the electrical motor. (2) It gives a state-space feedback control design methodology based on Lyapunov analysis which renders the minimum-energy operating points invariant. Several controllers are proposed: P-type control, observer-based P-type control, PI-type control and observer-based PI-type control. The PI-structure and the observer-based control are introduced to deal with motor parameter uncertainties, and the absence of flux measurements, respectively. Stability of all these control schemes is studied. Experimental results are also presented.
ISSN:0005-1098
1873-2836
DOI:10.1016/S0005-1098(96)00142-2