Title :
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
fDate :
10/1/1998 12:00:00 AM
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;
Journal_Title :
Industrial Electronics, IEEE Transactions on
