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Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.00 vteřin. 
Modeling and Control of AC Electric Drives during Fault Conditions
 Kozovský, Matúš ; Glasberger, Tomáš (oponent) ; Kuchař, Martin (oponent) ; Blaha, Petr (vedoucí práce)
The thesis deals with modeling and control methods of the electric motor during failure. The work focuses exclusively on multi-phase motors. The first part of the thesis deals with the mathematical equations of a general multi-phase motor and the equation derivation for n-times three-phase connection. Models in dq coordinates and models in stator coordinates are designed to simulate the behaviour of the motor during a failure. The next part of the thesis deals with the multi-phase motors fault analysis using designed mathematical models. The various internal structures of the motor windings are analyzed from the motor control during a failure point of view. The behaviour of the different motor structures under a fault condition is shown. Motor electrical faults, as well as power stage faults, are analysed. The last part of the thesis deals with the designed control algorithm and fault compensation strategies tests using real motors. The segregate dual three-phase motor and the interlaced experimental motor with internal short-circuit emulation functionality were used for testing. Realised tests demonstrate that a properly designed motor in combination with the well-designed control algorithm and power electronics can guarantee continuous motor run during a failure.
Úplný záznam
Modeling and Control of AC Electric Drives during Fault Conditions
 Kozovský, Matúš ; Glasberger, Tomáš (oponent) ; Kuchař, Martin (oponent) ; Blaha, Petr (vedoucí práce)
The thesis deals with modeling and control methods of the electric motor during failure. The work focuses exclusively on multi-phase motors. The first part of the thesis deals with the mathematical equations of a general multi-phase motor and the equation derivation for n-times three-phase connection. Models in dq coordinates and models in stator coordinates are designed to simulate the behaviour of the motor during a failure. The next part of the thesis deals with the multi-phase motors fault analysis using designed mathematical models. The various internal structures of the motor windings are analyzed from the motor control during a failure point of view. The behaviour of the different motor structures under a fault condition is shown. Motor electrical faults, as well as power stage faults, are analysed. The last part of the thesis deals with the designed control algorithm and fault compensation strategies tests using real motors. The segregate dual three-phase motor and the interlaced experimental motor with internal short-circuit emulation functionality were used for testing. Realised tests demonstrate that a properly designed motor in combination with the well-designed control algorithm and power electronics can guarantee continuous motor run during a failure.
Úplný záznam

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