A step up chopper has 175 volts as input and the output required is 325 volts. If the non-conducting time of thyristor is 175 micro seconds, compute. i) Chopping frequency. ii) If the pulse width is (1/4)th of that in case (i) for constant frequency of operation, find the new output voltage. iii) If the frequency is increased 20% of that in case (i) keeping the conducting time constant, what is the new value of k and output voltage of the chopper.

A step up chopper has 175 volts as input and the output required is 325 volts. If the non-conducting time of thyristor is 175 micro seconds, compute. i) Chopping frequency. ii) If the pulse width is (1/4)th of that in case (i) for constant frequency of operation, find the new output voltage. iii) If the frequency is increased 20% of that in case (i) keeping the conducting time constant, what is the new value of k and output voltage of the chopper.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.2P

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