Title :
Design of an optimal discrete current regulator
Author :
Sul, Seung K. ; Kwon, Bong H. ; Kang, Jun K. ; Lim, Kye Y. ; Park, Min Ho
Author_Institution :
Gold Star Ind. Syst. Co., Kyongki Do, South Korea
Abstract :
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.<>
Keywords :
controllers; digital simulation; discrete systems; electric current control; optimal control; RMS current error; computer simulation; conventional PDM regulator; digital signal processor; estimation error; optimal discrete current regulator; parameter error; pulse density modulation; voltage vector; Computer errors; Computer simulation; Digital signal processing; Power semiconductor switches; Pulse width modulation inverters; Regulators; Resonant inverters; Switching frequency; Switching loss; Voltage;
Conference_Titel :
Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IAS.1989.96675
