Title :
A novel current-tracking method for active filters based on a sinusoidal internal model [for PWM invertors]
Author :
Fukuda, Shoji ; Yoda, Takehito
Author_Institution :
Div. of Syst. & Inf., Hokkaido Univ., Sapporo, Japan
Abstract :
A new current control method based on the internal model principle in control theory is proposed. It introduces a sinusoidal internal model into the control system. It does not use any coordinate transformations. The method can be used for tracking an arbitrary number of harmonics: a DC component or fundamental frequency component signal. It is applied to a single-phase pulsewidth modulation inverter and active filter. The validity is confirmed by simulation and experimental results
Keywords :
DC-AC power convertors; PWM invertors; active filters; control system analysis; control system synthesis; electric current control; harmonic distortion; power conversion harmonics; power harmonic filters; DC component; active filter; active filters; coordinate transformations; current control method; current-tracking method; fundamental frequency component signal; harmonics tracking; single-phase pulsewidth modulation inverter; sinusoidal internal model principle; Active filters; Control theory; Current control; Frequency; Mathematical model; Pulse inverters; Pulse modulation; Pulse width modulation inverters; Steady-state; Transfer functions;
Journal_Title :
Industry Applications, IEEE Transactions on
