Abstract
This paper presents the tropology of direct conversion of AC-AC with step down frequency operation. Due to, the higher order harmonics AC conversion always arises difficulty and complex calculation, which effect the output response. Precise controlling and harmonics reduction is much easier using frequency control strategy, in this regards cycloconverter has drawn higher attention in terms of frequency conversion. In this paper, an approach for designing of single phase and three phase cycloconverter is reported. The gating sequence has been designed for desired frequency conversion. Again the performance of the designed converters is evaluated using Matlab/Simulink software for different types of loads. The rotor speed of Induction motor (IM) is observed here as a dynamic AC load .The complete description of the models for the frequency conversion is provided and simulation results for resistive, inductive and motor validate the developed strategy.
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