Title :
Power quality enhancement in high power multi-level drives
Author :
Abolhassani, Mehdi ; Keister, Thomas
Author_Institution :
R&D Dept., TECO-Westinghouse Motor Co., Round Rock, TX, USA
Abstract :
A new approach to improve the power quality of high power medium voltage multi-level drives is presented. A modular transformers strategy in conjunction with modular power electronics cubes is developed. By applying this technology, the input current harmonics decreases to well below the requirement of IEEE 519-1992 while the amount of capacitance installed in the drive is significantly decreased. Besides by employing modular transformers technology and efficient cooling, power density of the drive is increased by 15%. The input power factor of drive is also improved. This paper details the new approach, analyses and test results.
Keywords :
electric drives; power electronics; power supply quality; power transformers; IEEE 519-1992; cooling; high power medium voltage multilevel drives; input current harmonics; input power factor; modular power electronic cubes; modular transformer strategy; power density; power quality enhancement; Harmonic analysis; Inverters; Power harmonic filters; Power quality; Pulse transformers; Rectifiers; Windings; Cascaded symmetric drive; Medium Voltage Drive; Multi-level Drive; Power Quality;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2010 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-5286-6
Electronic_ISBN :
978-1-4244-5287-3
DOI :
10.1109/ECCE.2010.5618475
