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   REDUCTION OF THE PULSATIONS OF THE TORQUE AND REVOLUTIONS AT THE ASYNCHRONOUS MOTOR FED FROM PWM FREQUENCY CONVERTERS   [View] 
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 Author(s)   J. Bendl; L. Schreier 
 Abstract   Presented paper introduces a design of PWM control based on restriction of torque pulsation and variation of revolutions by means of a convenient choice of shape of integration line of terminal voltages of the machine. Calculated torque and revolutions are criteria of the right choice of shape of the integration line. A course when torque pulsations and variation. of revolutions with 6-fold frequency of fundamental harmonie of feeding voltage are minimised is considered optimum. Further a convenient way of insertion of zero intervals is designed. lt causes decrease of fundamental harmonic of feeding voltage of the machine so that torque pulsations with higher frequency may be as low as possible. 
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Filename:Unnamed file
Filesize:354.2 KB
 Type   Members Only 
 Date   Last modified 2018-04-12 by System