Title :
DC link imbalance compensation in four-switch inverter AC motor drives
Author :
Covic, G.A. ; Peters, G.L.
Author_Institution :
Dept. of Electr. & Electron. Eng., Auckland Univ., New Zealand
fDate :
6/19/1997 12:00:00 AM
Abstract :
Non-ideal DC link conditions degrade the quality of output waveforms from voltage-sourced inverters. Four-switch inverters that make use of the split DC link produced from a voltage-doubling rectifier are particularly sensitive to link imbalance. An effective technique using space vector methods is described which modulates the ripple effects, extending the useful operating range of low cost, single to three phase converters
Keywords :
AC motor drives; compensation; invertors; solid-state rectifiers; AC motor drives; DC link conditions; DC link imbalance compensation; four-switch inverter; link imbalance; output waveforms; ripple effects; single to three phase converters; space vector methods; useful operating range; voltage-doubling rectifier; voltage-sourced inverters;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970797
