Modeling and simulation of a digitally controlled active rectifier for power conditioning

The authors describe a single-phase active rectifier that provides an input AC current with unity displacement power factor and 3% total harmonic distortion (THD). The goal is to devise a rectifier to compensate for current harmonics and to improve the power factor of the line current. A closed-loop current control is proposed which will force the AC line current to be nearly sinusoidal and in phase with the input source voltage. Thus average DC output voltage is controlled to the desired value. Two topologies for the rectifier are investigated-a standard boost topology and a modified boost topology with the inductor moved to the AC side of the rectifier. Computer simulations that implement closed-loop control of the models are presented. Simulation programs and results are discussed.<<ETX>>

[1]  C.K. Duffey,et al.  Update of harmonic standard IEEE-519-IEEE Recommended Practices and Requirements for Harmonic Control in Electric Power Systems , 1989, Conference Record of the IEEE Industry Applications Society Annual Meeting,.

[2]  G. Joos,et al.  A novel active current waveshaping technique for solid state input power factor conditioners , 1989, 15th Annual Conference of IEEE Industrial Electronics Society.

[3]  N. Mohan,et al.  A digitally controlled AC to DC power conditioner that draws sinusoidal input current , 1986, 1986 17th Annual IEEE Power Electronics Specialists Conference.

[4]  Alexander E. Emanuel,et al.  Unity power factor single phase power conditioning , 1987, IEEE Power Electronics Specialists Conference.