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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Transient Behavior of Active Front-End Rectifier under Unbalanced Voltage Supply
 Chomát, Miroslav ; Schreier, Luděk ; Bendl, Jiří
Operation of voltage-source inverter supplied with unbalanced system of voltages is investigated in the paper. This situation can lead to problems in operation of an electric drive as voltage pulsations can arise in the DC-bus. Suitable kontrol methods may be applied to eliminate this effect in the aktive front-end rectifier. The paper particularly focuses on transient processes that accompany operation of the drive. They can be caused by changes in control of the drive, changes in load, or changes in the supply voltages.
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Výkonost pohonu s proměnnými otáčkami při napájení nesymetrickým napětím
 Chomát, Miroslav ; Schreier, Luděk ; Bendl, Jiří
Unsymmetrical voltages at the input of a voltage source inverter cause pulsations in the DC-link voltage when not properly taken care of. This may result in reduced power capabilities of the drive. The unbalance can be caused by a failure in the network or by unbalanced load in the vicinity of the affected drive. The paper deals with the methods to address this problem and with the limitations placed on the drive when operated from the unbalanced voltage supply.
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