Parallel processing inverter system

Author

Kawabata, Takao ; Sashida, Nobuo ; Yamamoto, Yushin ; Ogasawara, Kouji ; Yamasaki, Yuko

Author_Institution

Mitsubishi Electr. Corp., Kobe, Japan

Volume

6

Issue

3

fYear

1991

fDate

7/1/1991 12:00:00 AM

Firstpage

442

Lastpage

450

Abstract

A novel method of instantaneous voltage and power balance control of a parallel processing inverter system is proposed. It consists of a high-speed switching PWM (pulsewidth modulated) inverter with an instantaneous current minor loop controller, a voltage major loop controller, and a power balance controller. This system realizes the following functions with only one inverter: constant AC output voltage control with reactive power control, active filtering to absorb load current harmonics, DC voltage and current control as AC-to-DC converter, and uninterruptible power supply (UPS) for stand-alone operation. This system covers a wide application range, including UPS systems, new energy systems, and active filters with voltage control functions

Keywords

active filters; electric current control; invertors; power control; pulse width modulation; reactive power; switching; voltage control; AC-to-DC converter; PWM inverter; active filtering; active filters; constant AC output voltage control; high-speed switching; instantaneous current minor loop controller; parallel processing inverter system; power balance control; reactive power control; stand-alone operation; uninterruptible power supply; voltage control; voltage major loop controller; Active filters; Control systems; Parallel processing; Power filters; Power harmonic filters; Pulse inverters; Pulse width modulation inverters; Reactive power control; Uninterruptible power systems; Voltage control;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.85912

Filename

85912