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National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Three-phase inverter for high-speed induction motor
 Pinďák, Michal ; Knobloch, Jan (referee) ; Procházka, Petr (advisor)
The goal of this master´s thesis is primarily the theoretical analysis of three-phase inverters and subsequent familiarization of the reader with their detailed practical structure. The first part is devoted to the general definition of the power semiconductor converter as such. The following part describes the principle of three-phase pulse width modulation including the widely used principle of scalar control of induction motors. The second half of the thesis is already focused on the practical design of a three-phase inverter for a 50 kW high-speed induction motor. This section explains the problem of sizing and selecting all of the sub-elements of the inverter based on the parameters specified by the end user of the device.
Detailed record
Three-Phase Inverter For High-Speed Induction Motor
 Pinďák, Michal
The aim of this project is to design a three-phase inverter for high speed induction motor. Nowadays, inverters are one of the most used devices for the torque and the rotational speed regulation of synchronous or induction motors. The main principle of these devices is frequency and voltage amplitude change by PWM modulation on the output. By this simple principle, we could keep a really good energy efficiency about 95 %. The article shows all basic structural parts of device, their parameters and the purpose of their use.
Detailed record
Three-phase inverter for high-speed induction motor
 Pinďák, Michal ; Knobloch, Jan (referee) ; Procházka, Petr (advisor)
The goal of this master´s thesis is primarily the theoretical analysis of three-phase inverters and subsequent familiarization of the reader with their detailed practical structure. The first part is devoted to the general definition of the power semiconductor converter as such. The following part describes the principle of three-phase pulse width modulation including the widely used principle of scalar control of induction motors. The second half of the thesis is already focused on the practical design of a three-phase inverter for a 50 kW high-speed induction motor. This section explains the problem of sizing and selecting all of the sub-elements of the inverter based on the parameters specified by the end user of the device.
Detailed record

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