O'Reilly logo

Predictive Control of Power Converters and Electrical Drives by Patricio Cortes, Jose Rodriguez

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Appendix B

Predictive Control Simulation—Torque Control of an Induction Machine Fed by a Two-Level Voltage Source Inverter

Figure B.1 shows the MATLAB®/Simulink® model used for simulation of the predictive torque control (PTC) of an induction machine fed by a two-level voltage source inverter described in Chapter 8. The simulation diagram contains six main elements: reference speed generation, PI speed controller, predictive control algorithm, inverter model, coordinate transformation, and induction machine model.

Figure B.1 Simulink model for the predictive torque control of an induction machine

B.1

The reference speed (block 1) in the simulation layout can be a constant, a step block, or any other signal according to the simulation needs. For the reference speed tracking, a PI controller (block 2) is used. The PI controller receives the error signal and computes the torque reference for the predictive controller. Figure B.2 shows a discrete-time implementation of the PI controller. There are two tuning parameters in this controller: the proportional gain Kp and the integral gain Ki. For the design of these parameters, the transfer function between the rotor speed and the electrical torque is obtained from (8.12) through application of the Laplace transform:

B.1 B.1

Figure B.2 PI speed ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required