Title :
Performance analysis in terms of line current harmonic injection and DC bus output voltage regulation of two three phase boost rectifiers operating under unbalanced load
Author :
Yacoubi, Loubna ; Haddad, Kamal AL ; Dessaint, Louis A.
Author_Institution :
Dept. of Electr. Eng., Quebec Univ., Montreal, Que., Canada
Abstract :
In this paper, the authors present a comparative study between two three-phase boost rectifier topologies. The topologies considered are three-level (18 switches) and two-level (6 switches) converters. The neutral point of the three-phase source is connected to the midpoint of the DC bus to provide a zero sequence current path. The comparison is carried out for both balanced and unbalanced load connected to the centre tap of the DC bus. The control of unbalanced voltage with the injection of the zero sequence current is achieved using the PWM technique. The THD of line-currents, efficiency and power factor are compared for a 25 kW system operating at 3 kHz. Simulation results obtained by the power system blockset (PSB) tool for both steady state and dynamical operations are presented and analysed
Keywords :
AC-DC power convertors; PWM power convertors; circuit analysis computing; harmonic analysis; harmonic distortion; power conversion harmonics; power engineering computing; rectifying circuits; 25 kW; 3 kHz; DC bus midpoint; DC bus output voltage regulation; PWM technique; computer simulation; control design; control simulation; efficiency; line current harmonic injection; line currents THD; performance analysis; power factor; power system blockset; three-phase boost rectifier topologies; unbalanced load operation; unbalanced voltage control; zero sequence current injection; zero sequence current path; Performance analysis; Power system harmonics; Power system simulation; Pulse width modulation; Reactive power; Rectifiers; Switches; Switching converters; Topology; Voltage control;
Conference_Titel :
Harmonics and Quality of Power, 2000. Proceedings. Ninth International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-6499-6
DOI :
10.1109/ICHQP.2000.897040
