Adaptive tolerance-band current control of standby power supply provides load-current harmonic neutralization

Author

Persson, Eric ; Mohan, Ned ; Banerjee, B.B.

Author_Institution

Analog Circuit Design, Minneapolis, MN, USA

fYear

1992

fDate

29 Jun-3 Jul 1992

Firstpage

320

Abstract

The authors present a standby power supply system which provides the combined functions of power backup and load current harmonic neutralization. The system is based on a four-switch insulated gate bipolar transistor (IGBT) inverter which is operated in either a voltage or a current mode. The voltage mode uses traditional fixed-frequency pulse width modulation control. The current mode uses an adaptive tolerance band scheme to achieve fixed-frequency. The authors discuss the design tradeoffs for the current-mode control, and present performance data for a 120 V, 25 A (peak) single-phase system

Keywords

adaptive control; control system synthesis; electric current control; emergency power supply; harmonics; insulated gate bipolar transistors; invertors; power transistors; pulse width modulation; 120 V; 25 A; IGBT; PWM; adaptive tolerance band scheme; current control; current-mode control; design; insulated gate bipolar transistor; inverter; load current harmonic neutralization; performance; power transistors; single-phase; standby power supply; Adaptive control; Current control; Emergency power supplies; Insulated gate bipolar transistors; Power system harmonics; Programmable control; Pulse width modulation; Pulse width modulation inverters; Space vector pulse width modulation; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1992. PESC '92 Record., 23rd Annual IEEE

Conference_Location

Toledo

Print_ISBN

0-7803-0695-3

Type

conf

DOI

10.1109/PESC.1992.254656

Filename

254656