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《能源前沿(英文)》 >> 2012年 第6卷 第2期 doi: 10.1007/s11708-012-0183-0

Direct field oriented control scheme for space vector modulated AC/DC/AC converter fed induction motor

1. MSE Laboratory, Department of Electrical Engineering, University of Biskra, BP 145 Biskra, Algeria; 2. PRISME Institut, University of Orléans, 21 rue Loigny La Bataille, 28000 Chartres, France

发布日期: 2012-06-05

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摘要

This paper investigates a Luenberger flux observer with speed adaptation for a direct field oriented control of an induction motor. An improved method of speed estimation that operates on the principle of speed adaptive flux and current observer has been proposed. An observer is basically an estimator that uses a plant model and a feedback loop with measured stator voltage and current. Simulation results show that the proposed direct field oriented control with the proposed observer provides good performance dynamic characteristics. The induction motor is fed by an indirect power electronics converter. This indirect converter is controlled by a sliding mode technique that enables minimization of harmonics introduced by the line converter, as well as the control of the power factor and DC-link voltage. The robustness of the overall system is studied using simulation for different operating modes and varied parameters.

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