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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Electrical machine for wind power generator
 Srna, Jan ; Chmelíček, Petr (referee) ; Kurfűrst, Jiří (advisor)
This thesis describes analyse of transient and subtransient parts of short – circuit current. Values of synchronous generator short – circuit current were measured for lower voltage and subsequently recounted to its nominal values. The analyse is useful for machines without documentation and where is measurement of needed parameters necessary. Two methods coming out of the IEEE standard were used for identification reactances and time constants and after that these methods were compared between themselves. One of the method were created in program MATLAB, where measured short – circuit currents for each phase were handled. Values of time constants are used for simple model of synchronous generator created in toolbox of program MATLAB/SIMPOWER. This simulation verifies correctness of counting transient and subtransient analyses.
Detailed record
Electrical machine for wind power generator
 Srna, Jan ; Chmelíček, Petr (referee) ; Kurfűrst, Jiří (advisor)
This thesis describes analyse of transient and subtransient parts of short – circuit current. Values of synchronous generator short – circuit current were measured for lower voltage and subsequently recounted to its nominal values. The analyse is useful for machines without documentation and where is measurement of needed parameters necessary. Two methods coming out of the IEEE standard were used for identification reactances and time constants and after that these methods were compared between themselves. One of the method were created in program MATLAB, where measured short – circuit currents for each phase were handled. Values of time constants are used for simple model of synchronous generator created in toolbox of program MATLAB/SIMPOWER. This simulation verifies correctness of counting transient and subtransient analyses.
Detailed record

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