Title :
A Novel Load Compensator for a 12-pulse Diode Converter
Author :
Peterson, Maryclaire ; Singh, Brij N.
Author_Institution :
Dept. of Electr. Eng., Tulane Univ., New Orleans, LA
Abstract :
This paper presents a novel active current shaper, called hereinafter a load compensator (LSTATCOM), for a 12-pulse diode converter. The LSTATCOM injects compensation current through a split winding interphase reactor connected on DC bus of the 12-pulse converter. It is desired that the LSTATCOM provides sinusoidal shaping of the source currents for an output load varying over a wide range. The proposed LSTATCOM should be capable of overcoming the problems of voltage unbalance and transformer design defects. This paper develops a novel technique to make the LSTATCOM inherently capable of addressing these power quality issues. To simulate the dynamic and steady state performance of the converter with the proposed LSTATCOM, a detailed mathematical model of the system is developed. A thorough investigation of the simulation results reveals that the proposed LSTATCOM provides sinusoidal shaped source currents while keeping the system power-factor pegged at unity for a wide range of conditions.
Keywords :
load regulation; power convertors; power factor; power system harmonics; power transformers; reactors (electric); transformer windings; 12-pulse diode converter; LSTATCOM; harmonic reduction; hereinafter-load compensator; mathematical model; novel active current shaper; power quality; power-factor; split winding interphase reactor; transformer design defects; voltage unbalance; Active filters; Costs; Diodes; Inductors; Passive filters; Power harmonic filters; Power quality; Pulse transformers; Rectifiers; Steady-state; Multipulse converter; current injection; harmonic reduction; hybrid current shaping;
Conference_Titel :
Power Electronics, Drives and Energy Systems, 2006. PEDES '06. International Conference on
Conference_Location :
New Delhi
Print_ISBN :
0-7803-9772-X
Electronic_ISBN :
0-7803-9772-X
DOI :
10.1109/PEDES.2006.344390