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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
Titas Kumar Nag
Saroj Mohan Institute of Technology
Control & Systems Engineering Electrical & Electronics Engineering

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Harmonics Reduction in a Current Source Fed Quasi-Resonant Inverter Based Induction Heater Avijit Chakraborty; Titas Kumar Nag; Pradip Kumar Sadhu; Nitai Pal
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 7, No 2: June 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (349.696 KB) | DOI: 10.11591/ijpeds.v7.i2.pp431-439

Abstract

This paper investigates an approach to reduce the injection of unwanted harmonics from the input side power source. The proposed work finds an application of a suitably designed Low Pass Filter (LPF) for harmonics reduction. The Low Pass Filter is incorporated in between the input power source and high frequency current source fed single switch parallel quasi-resonant inverter of a domestic Induction Heater. The inverter has an Insulated Gate Bipolar Junction Transistor (IGBT) switch. Undesirable harmonics injection to the input power source makes voltage and current waveforms non-sinusoidal. Fast Fourier Transform (FFT) analysis has been applied to study the effect of harmonics in frequency domain. The entire system is realized in Power System Simulator (PSIM) environment. It is finally proved that the proposed filter reduces the Total Harmonic Distortion (THD) and the Distortion Factor (DF) of the input current. It is also proved that the proposed Low Pass Filter can make the input power factor closer to unity.
Co-Authors Avijit Chakraborty Nitai Pal Pradip Kumar Sadhu