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Single-phase half-bridge converter topology for power quality compensation

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2 Author(s)
Lin, B.-R. ; Dept. of Electr. Eng., Nat. Yunlin Univ. of Sci. & Technol., Taiwan ; Hung, T.-L.

A high power factor half-bridge rectifier with neutral point switch clamped scheme is proposed. Three power switches are employed in the proposed rectifier. Two PWM control schemes are used to draw a sinusoidal line current with low current distortion. The control signals of the power switches are derived from the DC link voltage balance compensator, line current controller and DC link voltage regulator. The hysteresis current control scheme is employed to track the line current command. The proposed control scheme and the circuit configuration can be applied to the active power filter to eliminate the harmonic currents and compensate the reactive power generated from the nonlinear load. Analytical and experimental results are included to illustrate the validity and effectiveness of the proposed control scheme

Published in:

Electric Power Applications, IEE Proceedings -  (Volume:149 ,  Issue: 5 )