Predictive direct torque and flux control of an induction motor drive fed by a direct matrix converter with reactive power minimization
No Thumbnail Available
Date
2013
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE
Abstract
The paper presents a Predictive Direct Torque and
Flux Control (PDTFC) of an induction machine fed by a Direct
Matrix Converter (DMC). The method combines the merits of
Finite States Model Predictive Control (FSMPC) with the ones of
DTC control. The proposed control algorithm selects the switching
state of the DMC that minimizes the error between torque and flux
predictions to their computed values for all different voltage
vectors. The optimal voltage vector that minimizes a cost function
is then applied to the terminal of the induction machine. Moreover,
the proposed predictive control is easily extended to minimize the
reactive power in the voltage source side. The control method uses
only one sample time and it is very intuitive since it is simple,
multi-objective and provides best performances compared to other
control laws (fast dynamic response, simple implementation).
Description
Keywords
Induction motor, Predictive control, finite statesspace model, Direct matrix converter, Cost function, Reactive power