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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Effect of voltage variant of a frequency converter on asynchronous motor parameters
 Pavlas, Michal ; Bílek, Vladimír (referee) ; Bárta, Jan (advisor)
This bachelor thesis is focused on literature researches, dealing with the properties of controlled drives with asynchronous machines. The work describes the possibility of operation of a three-phase asynchronous machine directly powered from a single-phase network without a frequency converter. In the next part, the research is focused on a theme dealing with the influence of harmonics of the converter on the parameters of an asynchronous motor. Subsequently, specific test methods for determining the losses and efficiencies of AC motors powered by frequency converters are described on the basis of the IEC 60034-2-3 standard. The last part of this bachelor thesis is devoted to the assessment of the influence of the voltage variant of the frequency converter on the parameters of the asynchronous motor.
Detailed record
Effect of voltage variant of a frequency converter on asynchronous motor parameters
 Pavlas, Michal ; Bílek, Vladimír (referee) ; Bárta, Jan (advisor)
This bachelor thesis is focused on literature researches, dealing with the properties of controlled drives with asynchronous machines. The work describes the possibility of operation of a three-phase asynchronous machine directly powered from a single-phase network without a frequency converter. In the next part, the research is focused on a theme dealing with the influence of harmonics of the converter on the parameters of an asynchronous motor. Subsequently, specific test methods for determining the losses and efficiencies of AC motors powered by frequency converters are described on the basis of the IEC 60034-2-3 standard. The last part of this bachelor thesis is devoted to the assessment of the influence of the voltage variant of the frequency converter on the parameters of the asynchronous motor.
Detailed record

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