Title :
Improvement of current regulation of line-current-detection-type active filter based on deadbeat control
Author :
Hamasaki, Shin-ichi ; Kawamura, Atsuo
Author_Institution :
Dept. of Electr. & Comput. Eng., Yokohama Nat. Univ., Japan
Abstract :
A new control scheme for the line-current-detection-type active filter (AF) is proposed to improve the current regulation capability based on the digital deadbeat (DB) control. The current control scheme is achieved by controlling the intermediate voltage of the inverter output filter so that the AF output current is regulated using the DB control law for the calculation of the pulsewidth of the pulsewidth-modulation inverter. In the proposed scheme, the current regulation performance is improved to be much better than the conventional one. The control method, mathematical analysis, the simulation results, and the experimental results are presented in this paper.
Keywords :
PWM invertors; digital control; electric current control; power harmonic filters; 100 V; 2 kVA; PWM inverter; active filter output current; current harmonics; current regulation; deadbeat control; digital control; digital deadbeat control; inverter output filter; line-current-detection-type active filter; mathematical analysis; nonlinear loads; pulsewidth-modulation inverter; voltage harmonics; Active filters; Current control; Digital control; Equivalent circuits; Impedance; Industry Applications Society; Power harmonic filters; Pulse inverters; Pulse width modulation inverters; Voltage control;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2003.808956