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Assessment of Control Techniques for a PM-PM test rig


A. Vouzas

Master Thesis, HS13 (10299)

In the current Master Thesis an overall assessment in the motor control theory is conducted an identification of motor parameters is presented and control algorithms regarding the identification of the motor parameters, speed, position and ripple estimation are implemented. In order to test the accuracy and compare the quality, the above algorithms are tested on an inverter which drives a PMSM (Permanent Magnet Synchronous Motor). The programs are written in C programming language and the editing, coding and communication (downloading and data acquisition) with the DSP board is done through the ITHALGO software environment. In more detail, an introduction to the hardware test bench and a mathematical analysis of the PMSM equations is presented. Furthermore, the identification of the rotor flux is made using the encoder speed measurement. In the next chapters a speed and position estimator is investigated and different solutions are proposed (EKF). A Finite Control Set Model Predictive Control scheme is analyzed and implemented. In conclusion a multisampled ripple estimation scheme for low switching frequencies is investigated in order to identify the state (currents in alpha beta coordinates) without ripple. Based on the estimated state a more efficient control and disturbance rejection can be achieved.


Type of Publication:

(12)Diploma/Master Thesis

G. Torrisi

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% Autogenerated BibTeX entry
@PhdThesis { Xxx:2014:IFA_4779
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