Title :
A new modulation technique for reducing the input current harmonics of a three-phase diode rectifier with capacitive load
Author :
Daniel, F. ; Chaffai, R. ; Al-Haddad, Kamal ; Parimelalagan, R.
Author_Institution :
Div. of Adv. Power Syst., Northern Telecom, Montreal, Que., Canada
Abstract :
In this paper, a new technique for shaping the line current and reducing the total harmonic distortion in a three-phase bridge rectifier, feeding a capacitive load, is presented. Using the topology of a three-level three-switch pulsewidth modulated (PWM) rectifier, a new control technique has been implemented. The main objective here is to minimize the total harmonic distortion (THD) of the line current under different load conditions (20%-100% of full load). A review of the problems inherent in a bridge rectifier feeding a capacitive load and the possible solutions are first presented. Subsequently, the analysis of the new circuit and the control technique used are described, along with simulation results. Finally, the experimental results on a 1.6 kW prototype are presented
Keywords :
AC-DC power convertors; PWM power convertors; bipolar transistor switches; bridge circuits; harmonic distortion; insulated gate bipolar transistors; load (electric); power bipolar transistors; power semiconductor switches; power system harmonics; rectifying circuits; 1.6 kW; capacitive load; input current harmonics reduction; load conditions; modulation technique; power IGBT switches; three-level three-switch PWM rectifier; three-phase diode rectifier; total harmonic distortion; Bridge circuits; Diodes; Harmonic distortion; Power harmonic filters; Power quality; Power system harmonics; Pulse width modulation; Rectifiers; Total harmonic distortion; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
