High accurate ripple reducing method based on the repetitive control

Author

Amanuma, Katsuyuki ; Fuwa, Motoki ; Sakaki, Yo

Author_Institution

Fac. of Eng., Chiba Univ., Japan

fYear

1994

fDate

20-25 Jun 1994

Firstpage

571

Abstract

Repetitive control is applied to an active filter which eliminates the ripple current injected into the inductive load from 10 Hz sinusoidal ripple generator. The active filter is designed as a discrete-time repetitive servo system and consists of voltage-type rectangular waveform inverter, steady state compensator composed of dead-time element, and stabilizing compensator designed using a vector locus of the feedback loop of active filter. A method to improve the deterioration of control accuracy due to a variation of ripple frequency is also discussed. As the results of experiments, about -40 dB reduction of ripple current can be achieved

Keywords

active filters; control system synthesis; discrete time systems; feedback; invertors; power supplies to apparatus; pulsed power technology; servomechanisms; voltage control; active filter; dead-time element; design; discrete-time repetitive servo system; feedback loop; inductive load; pulsed power supplies; repetitive control; ripple current reduction; sinusoidal ripple generator; stabilizing compensator; steady state compensator; vector locus; voltage controllers; voltage-type rectangular waveform inverter; Active filters; Control systems; Electric variables control; Electromagnets; Error correction; Feedback loop; Frequency; Inverters; Power supplies; Servomechanisms; Steady-state; Thyristors; Voltage; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, PESC '94 Record., 25th Annual IEEE

Conference_Location

Taipei

Print_ISBN

0-7803-1859-5

Type

conf

DOI

10.1109/PESC.1994.349679

Filename

349679