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Měření a modelování synchronních reluktančních motorů
Gábriš, Richard ; Bárta, Jan (oponent) ; Vítek, Ondřej (vedoucí práce)
Táto bakalárska práca v úvode popisuje princíp fungovania a využitie synchrónnych reluktančných motorov. Jadro práce je rozdelené na dve časti. V prvej je popísané merania na vzorkách motorov a vyhodnotenie merania. Obsahom druhej časti je tvorba modelu motora v programe ANSYS Maxwell, analýza výsledkov a ich porovnanie s výsledkami získanými meraním.
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HIGH POWER-EFFICIENT SENSORLESS CONTROL OF SYNCHRONOUS RELUCTANCE MOTOR
Mynář, Zbyněk ; Talla,, Jakub (oponent) ; Lettl, Jiří (oponent) ; Václavek, Pavel (vedoucí práce)
Synchronous reluctance motors are becoming a more and more popular alternative to the AC induction machine for their relatively high power efficiency, low cost, and high robustness. Full utilization of benefits of sensorless control and high power efficiency are being complicated by non-linearities of the motor, especially magnetic saturation. The beginning of this work is dedicated to an inference of the mathematical-physical model of SynRM and an overview of existing state-of-the-art sensorless power-optimal algorithms. The core of this work is then the introduction of the SynRM state and parameter estimator, which is based on a new approach to measurement and utilization of phase reluctances. The key elements of the algorithm are a new methodology for measuring phase reluctances, a PWM switching scheme that allows to reduce switching losses and to measure phase reluctances from zero speed, and finally the integration of these measurements with the SynRM mathematical model using extended Kalman filter. The experimental part of the thesis then discusses the real measurement results obtained with the proposed algorithms and several selected state-of-the-art algorithms.
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Power Optimized Control of Synchronous Reluctance Machine
Mynář, Zbyněk
Synchronous reluctance motor (SynRM) is becoming more and more popular alternative of AC induction motor (ACIM) for its low cost, rugged structure and possibility of higher power efficiency. Power optimized control of SynRM is, therefore, important topics of research. This paper proposes power optimizing control algorithm incorporating active search of optimal current angle according to the MTPA criterion using the DC current injection. Results of implementation on real machine are presented.
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Měření a modelování synchronních reluktančních motorů
Gábriš, Richard ; Bárta, Jan (oponent) ; Vítek, Ondřej (vedoucí práce)
Táto bakalárska práca v úvode popisuje princíp fungovania a využitie synchrónnych reluktančných motorov. Jadro práce je rozdelené na dve časti. V prvej je popísané merania na vzorkách motorov a vyhodnotenie merania. Obsahom druhej časti je tvorba modelu motora v programe ANSYS Maxwell, analýza výsledkov a ich porovnanie s výsledkami získanými meraním.
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