Title :
A simple control technique for three-phase four-leg inverters
Author :
Bellini, A. ; Bifaretti, S.
Author_Institution :
Dept. of Electron. Eng., Rome Univ.
Abstract :
The paper takes into consideration three-phase four-leg inverters used to supply unbalanced loads without using a transformer. In literature different three-dimensional modulation techniques, requiring complex mathematical algorithms are proposed for this kind of inverter. The paper suggests a different approach, based on the separation of the control of the fourth leg from that of the other phases, allowing the application to the three inverter phases of traditional SVM techniques and avoiding the employment of complex procedures
Keywords :
invertors; mathematical analysis; support vector machines; SVM techniques; complex mathematical algorithms; three-dimensional modulation techniques; three-phase four-leg inverter control; unbalanced loads; Employment; Frequency; Leg; Power electronics; Power harmonic filters; Power system harmonics; Pulse width modulation inverters; Support vector machines; Uninterruptible power systems; Voltage;
Conference_Titel :
Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006. International Symposium on
Conference_Location :
Taormina
Print_ISBN :
1-4244-0193-3
DOI :
10.1109/SPEEDAM.2006.1649940