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High-voltage high-frequency power supply using a phase-shifted PWM full bridge inverter fed ozone generator with constant applied electrode voltage

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2 Author(s)
Hothongkham, P. ; Dept. of Electr. Eng., SIAM Univ., Bangkok, Thailand ; Kinnares, V.

This paper proposes the high-voltage high-frequency power supply for an ozone generator using a phase-shift pulse width modulation (PWM) full bridge inverter with constant applied electrode voltage. The circuit operation is fully described. The high-frequency transformer and ozone generator mathematical models are also included for preliminarily calculating of instantaneous voltages and currents. The proposed system simulation using the MATLAB/SIMULINK software package is given. In order to ensure that the zero voltage switch (ZVS) is always operated over a certain range of a frequency variation, a series-compensated resonant inductor is included. The advantage of the proposed system is a capability of varying ozone gas production quantity by varying the frequency and phase shift angle of the converter whilst the applied voltage to the electrodes is kept constant. The correctness of the proposed system is verified by both simulation and experimental results.

Published in:

Power Electronics Conference (IPEC), 2010 International

Date of Conference:

21-24 June 2010

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