Harmonic Research in Direct AC – AC Variable Frequency Power Converter
Kavitha1, R Premalatha2, K. Rajalakshmi D.3

1Kavitha, Associate Professor, Department of Electrical and Electronics Engineering, Kumaraguru College of Technology, Coimbatore (Tamil Nadu), India.
2R Premalatha, Associate Professor, Department of Electrical and Electronics Engineering, Kumaraguru College of Technology, Coimbatore (Tamil Nadu), India.
3K. Rajalakshmi D, Associate Professor, Department of Electrical and Electronics Engineering, Kumaraguru College of Technology, Coimbatore (Tamil Nadu), India.
Manuscript received on 23 August 2019 | Revised Manuscript received on 11 September 2019 | Manuscript Published on 17 September 2019 | PP: 1686-1690 | Volume-8 Issue-2S8 August 2019 | Retrieval Number: B11330882S819/2019©BEIESP | DOI: 10.35940/ijrte.B1133.0882S819
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Abstract: Direct AC-AC converter circuit termed as cyclo-converter converts fixed AC voltage, fixed frequency into variable AC voltage, variable frequency without using intermediate DC link. Cyclo-converter generates considerable harmonics when operated at variable frequency and load. The impact of harmonics is studied at multiples of lower order frequencies and firing angle. Simulation studies are performed and harmonic spectrum, Total Harmonic Distortion (THD) are diagnosed by employing MATLAB/SIMULINK platform. The Hardware prototype is implemented and the voltage waveform, harmonic profile is analyzed in real time using power logger.
Keywords: Cyclo-Converter, Harmonic Spectrum, THD.
Scope of the Article: Frequency Selective Surface