DocumentCode :
3097841
Title :
Hybrid Fixed Frequency Hysteresis Current Control, with a Generalized Integrator to Eliminate the Steady State Error
Author :
Krieger, A.W. ; Salmon, J.C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta.
fYear :
2005
fDate :
16-16 June 2005
Firstpage :
481
Lastpage :
486
Abstract :
A 1-phase current controller is proposed, which combines both fixed frequency operation and variable bandwidth hysteresis, and which is further augmented with a generalized integrating resonator to eliminate the current steady state error, while simultaneously rejecting the 60 Hz power source disturbance. The variable hysteresis operation is accomplished using uni-polar rectifier bridge operation, controlled by two comparators driven respectively by opposite phase, fixed frequency, triangular carrier signals. Due to the resulting linear cycle-averaged input-output relationship of such uni-polar comparator operation, this allows conventional linear control using proportional plus generalized integrator actions. The proposed controller is validated with simulation results
Keywords :
PI control; bridge circuits; comparators (circuits); electric current control; hysteresis; rectifying circuits; 1-phase current controller; 60 Hz; comparators; fixed frequency operation; generalized integrating resonator; generalized integrator; hybrid fixed frequency hysteresis current control; linear cycle-averaged input-output relationship; power source disturbance; proportional plus generalized integrator; steady state error elimination; unipolar rectifier bridge operation; variable bandwidth hysteresis; Bridge circuits; Computer errors; Current control; Error correction; Filtering; Hysteresis; Pulse width modulation; Reactive power; Steady-state; Switching frequency;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics Specialists Conference, 2005. PESC '05. IEEE 36th
Conference_Location :
Recife
Print_ISBN :
0-7803-9033-4
Type :
conf
DOI :
10.1109/PESC.2005.1581668
Filename :
1581668
Link To Document :
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