NORpie 2006 - Topic 06: Electrical Drives | ||
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![]() | Loss Minimization of Asynchronous Machine with Field Oriented Control
By B. S. Khaldi; A. Kouzou; S. Grouni; D. Boukhetala | |
Abstract: In this paper, the asynchronous machine with
flux oriented control (FOC) is studied in order to minimize
the electromagnetic losses of the machine using two families
of loss minimization methods, the optimization of the control
has been performed, firstly under variated rotor flux level,
where experimental results are obtained, secondly by the
optimization of the relation between the two components of
the stator current.
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![]() | IRFOC Induction Motor with Rotor Time-Constant Adaptation Approach
By B. S. Khaldi; A. Kouzou; S. Grouni; D. Boukhetala | |
Abstract: This paper studied the induction machine with
indirect rotor field oriented controlled (IRFOC) under the
effect of the rotor time constant variation. Two adaptation
algorithms are applied and compared, and then a new
approach is proposed in this paper for its adaptation in light
load applications.
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![]() | Modern Control of Induction Machines
By M. Krogsgaard; M. M. Bech; T. O. Andersen. | |
Abstract: An investigation of current state of the art in rotor field oriented control of induction machines is conducted. Different kinds of flux observers are analyzed with respect to parameter sensitivity and general performance. The evaluation is done by use of modern control theory and by testing in both a simulation model and in experiments. The potential of using different kinds of modern control strategies, like adaptive or sliding mode flux observers, are evaluated. The modern algorithms are all compared to standard methods.
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![]() | Implementation of Disturbance Observers in Speed Controlled Electric Drives
By M. Jokinen; M. Niemelä; J. Pyrhönen; A. Kosonen | |
Abstract: Increasing demands on the efficiency and quality of
production have emphasized the need to develop better control
systems for electric drives. A simple PID controller does not
fulfill the performance requirements e.g. in motion control
applications. A feed-forward function in the controller increases
the bandwidth of the control loop. Load disturbances can be
approximated with a disturbance observer using input-output
measurements. In this study a structure of a disturbance
observer is described and its performance is analyzed with
simulations and measurements.
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![]() | Sensorless Control of IPMSM by Voltage Injection
By T. N. Matzen; M. M. Bech | |
Abstract: In this paper a sensorless discrete current control of
an Interior Permanent Magnet Synchrouns Motor (IPMSM) by
voltage injection is designed and tested. The whole controller is
operating in the dq-frame and for this reason the rotor position
is essential to know, to transform between the stationary frame
and the rotor fixed dq-frame. To obtain the position even at
standstill a sensorless scheme using voltage injection is added to
the current controller.
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