Current controller reduced switching frequency for VS-PWM inverter used with AC motor drive applications

Author

Sikorski, Andrzej ; Citko, Tadeusz

Author_Institution

Dept. of Power Electron. & Electr. Drives, Bialystok Tech. Univ., Poland

Volume

45

Issue

5

fYear

1998

fDate

10/1/1998 12:00:00 AM

Firstpage

792

Lastpage

801

Abstract

The current control system of the three-phase voltage source inverter used in AC motor drive application is presented in the paper. This system, operating in the rotating reference frame fixed to the motor flux, minimizes the switching frequency inverter transistors. The optimal inverter output voltage vector positions, recorded in an electrically programmable read-only memory, ensure the longest path of moving the stator current vector inside the tolerance band which is square shaped. Theoretical bases for the choice of optimal inverter output voltage vector positions are discussed

Keywords

AC motor drives; DC-AC power convertors; control system analysis computing; control system synthesis; electric current control; invertors; machine control; machine theory; predictive control; stators; switching circuits; AC motor drive application; EPROM; computer simulation; control design; control simulation; current control system; motor flux; output voltage vector positions; rotating reference frame; stator current vector path; switching frequency minimisation; three-phase voltage source inverter; tolerance band; AC motors; Control systems; Electric current control; Hysteresis motors; Pulse width modulation inverters; Stators; Switching frequency; Synchronous motors; Voltage control; Zero voltage switching;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.720336

Filename

720336