Title :
Control of circulating current in parallel three-phase boost rectifiers
Author :
Ye, Zhihong ; Boroyevich, Dushan ; Choi, Jae-Young ; Lee, Fred C.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
6/22/1905 12:00:00 AM
Abstract :
In this paper, an averaged model predicting the dynamics of a zero-sequence current in parallel three-phase converters is developed. Based on the model, a new control variable associated with space-vector modulation is introduced. A strong zero-sequence current loop is designed to control and suppress the circulating current. Simulation and experimental results validate the developed model and the proposed control scheme
Keywords :
DC-DC power convertors; PWM power convertors; electric current control; rectifying circuits; averaged model; circulating current control; dynamics prediction; parallel three-phase boost rectifiers; parallel three-phase converters; space-vector modulation; strong zero-sequence current loop; zero-sequence current; Impedance; Inductors; Power electronics; Power supplies; Power system modeling; Predictive models; Pulse width modulation; Rectifiers; Switches; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2000. APEC 2000. Fifteenth Annual IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5864-3
DOI :
10.1109/APEC.2000.826151
