Title :
Improved and less load dependent three-phase current-controlled inverter with hysteretic current controllers
Author :
Rashidi, Nasser H.
Author_Institution :
Dept. of Eng. Technol., St. Cloud State Univ., MN, USA
fDate :
6/1/1995 12:00:00 AM
Abstract :
A concept of the so-called inner feedback in three-phase current-controlled inverters with hysteretic current controllers is introduced. Stability of the inverter at various frequencies under two different applied loads have been studied. An inertial feedback loop is added to each controller. This modification affects operating characteristics of the inverter by enforcing a switching pattern of low dependence on the load, resulting in significantly improved quality of the output current
Keywords :
DC-AC power convertors; electric current control; feedback; invertors; stability; switching circuits; current-controlled inverter; hysteretic current controllers; inertial feedback loop; inner feedback; low load dependence; operating characteristics; output current quality improvement; stability; switching pattern; three-phase; Control systems; Error correction; Feedback loop; Hysteresis; Open loop systems; Pulse width modulation; Pulse width modulation inverters; Switches; Switching circuits; Voltage;
Journal_Title :
Industrial Electronics, IEEE Transactions on
