Title :
Three-loop control for multimodule converter systems
Author :
Choi, Byungcho ; Cho, Bo H. ; Lee, Fred C. ; Ridley, Raymond B.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
10/1/1993 12:00:00 AM
Abstract :
A three-loop control scheme for multimodule power converter systems with a secondary LC filter is presented. In addition to output voltage and inductor current feedback, the control scheme employs feedback from the output capacitor of each module to improve the dynamic performance of the system, particularly the transient response in the event of failure of a module. The superiority of the three-loop control over the conventional two-loop current mode control is demonstrated by both small-signal analysis and large-signal simulations
Keywords :
control system analysis; electric current control; feedback; filters; power convertors; transient response; voltage control; buck; current control; dynamic performance; failure; feedback; large-signal simulations; multimodule power converter; output capacitor; secondary LC filter; small-signal analysis; three-loop control; transient response; voltage control; Buck converters; Capacitors; Control systems; Filters; Inductors; Output feedback; Resonance; Stability; Transient response; Voltage control;
Journal_Title :
Power Electronics, IEEE Transactions on
