Design of an optimal discrete current regulator

A current regulator for the resonant inverter, which chooses the nearest available voltage vector to the predicted desired voltage vector is proposed. It is proved that the proposed regulator minimizes RMS current error. The performance of the regulator is tested by computer simulations and compared with that of a conventional pulse density modulation (PDM) regulator. The effects of the parameter and estimation error in the back EMF are considered in the computer simulation. The implementation of the regulator using a digital signal processor and its experimental results are described. The computer simulation and experimental results reveal improved responses compared with a conventional PDM regulator.<<ETX>>

[1]  T.G. Habetler,et al.  Performance characterization of a new discrete pulse modulated current regulator , 1988, Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting.

[2]  T.A. Lipo,et al.  High frequency series resonant DC link power conversion , 1988, Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting.

[3]  D. M. Divan,et al.  Delta modulation strategies for resonant link inverters , 1987, IEEE Power Electronics Specialists Conference.

[4]  Thomas A. Lipo,et al.  Power Conversion Distribution System using a Resonant High Frequency AC Link , 1986, 1986 Annual Meeting Industry Applications Society.

[5]  Thomas A. Lipo,et al.  Field oriented control of an induction machine in a high frequency link power system , 1988, PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference.

[6]  Deepak Divan,et al.  The Resonant DC Link Converter--A New Concept in Static Power Conversion , 1986, 1986 Annual Meeting Industry Applications Society.

[7]  Pradeep Sood,et al.  A versatile power converter for high frequency link systems , 1987, 1987 IEEE Applied Power Electronics conference and Exposition.