An Analysis of High-Power IGBT Switching Under Cascade Active Voltage Control

A new gate-drive solution, cascade active voltage control (Cascade AVC), employs classic feedback-control methods with an inner loop controlling the insulated-gate bipolar-transistor (IGBT) gate voltage and an outer loop controlling the collector voltage, simultaneously. They make the switching perf...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on industry applications 2009-03, Vol.45 (2), p.861-870
Main Authors: Yalan Wang, Palmer, P.R., Bryant, A.T., Finney, S.J., Abu-Khaizaran, M.S., Gangru Li
Format: Article
Language:English
Subjects:
Active control
Automatic voltage control
Cascade active voltage control (Cascade AVC)
Cascade control
Collectors
Control systems
controlled switching
Design engineering
Electric potential
Feedback control
Feedback loop
high-power insulated-gate bipolar transistor (IGBT)
Industry Applications Society
Insulated gate bipolar transistors
Insulation
Power engineering and energy
series connection
stability
Stability analysis
Switching
Voltage
Voltage control
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:A new gate-drive solution, cascade active voltage control (Cascade AVC), employs classic feedback-control methods with an inner loop controlling the insulated-gate bipolar-transistor (IGBT) gate voltage and an outer loop controlling the collector voltage, simultaneously. They make the switching performance less dependent on the IGBT itself. Feedback control of IGBTs in the active region does not necessarily slow the switching but introduces stability issues. A detailed stability analysis provides a sensible perspective to judge the system stability and justify the controller design, through considering major operating points and determining corresponding IGBT parameters. Experiments on high-power IGBTs including a 4500-V device show that Cascade AVC offers improved performance and is easier to design than the original AVC.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2009.2013595