A Transformerless Hybrid Active Filter Using a Three-Level Pulsewidth Modulation (PWM) Converter for a Medium-Voltage Motor Drive

This paper presents a transformerless hybrid active filter integrated into a medium-voltage motor drive for energy savings. This hybrid filter is intended for line harmonic-current mitigation of the three-phase diode rectifier used as the front end of the motor drive. It is based on direct connectio...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on power electronics 2010-06, Vol.25 (6), p.1365-1374
Main Authors: Akagi, Hirofumi, Kondo, Ryota
Format: Article
Language:English
Subjects:
Active filters
Applied sciences
Capacitors. Resistors. Filters
Circuit properties
Convertors
Diodes
Electric currents
Electric, optical and optoelectronic circuits
Electrical engineering. Electrical power engineering
Electrical equipment
Electrical machines
Electronic circuits
Electronics
Exact sciences and technology
Frequency conversion
Frequency filters
harmonic mitigation
hybrid filters
Medium voltage
Motor drives
Motors
Passive filters
Power electronics, power supplies
Pulse transformers
Pulse width modulation
Pulse width modulation converters
Rectifiers
Transformers
Various equipment and components
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper presents a transformerless hybrid active filter integrated into a medium-voltage motor drive for energy savings. This hybrid filter is intended for line harmonic-current mitigation of the three-phase diode rectifier used as the front end of the motor drive. It is based on direct connection of a passive filter tuned to the seventh-harmonic frequency in series with an active filter using a three-level pulsewidth modulated (PWM) converter. This paper provides a theoretical discussion on voltage-balancing control of two split dc capacitors of the active filter. The 400-V 15-kW motor drive system is designed, constructed, and tested, which can be considered as a downscaled model from a medium-voltage motor drive without regenerative braking. Experimental results verify that the hybrid filter has the capability of satisfactory harmonic filtering and stable voltage balancing in all the load conditions.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2009.2040002