Paper Info
Title
Realization of Parasitics in Stability of DC–DC Converters Loaded by Constant Power Loads in Advanced Multiconverter Automotive Systems
Abstract
Distributed DC power systems are becoming increasingly common in advanced automotive systems. Constant power load (CPL) behavior of tightly regulated DC-DC converters in multiconverter power systems is equivalent to the dynamic negative impedance, destabilizing the DC bus and, consequently, the system. Various techniques have been developed to control ideal/lossless converters loaded by CPLs. Loss components significantly enhance the stability of the cascaded converters. In this paper, the effects of parasitics in the behavior of DC-DC converters loaded by CPLs are investigated. Furthermore, the stability of power converters loaded by CPLs in parallel to conventional constant voltage loads in the presence of loss components is analyzed. Design criteria are presented for converter operation in continuous and discontinuous conduction modes, which gives recommendations on the design of multiconverter DC power systems to avoid negative impedance instability. The proposed stable operation criteria are validated with hardware prototypes and simulation analyses.
Year
DOI
Venue
2008
10.1109/TIE.2008.918395
IEEE Transactions on Industrial Electronics
Keywords
Field
DocType
DC-DC power convertors,automotive electronics,circuit stability,DC-DC converter stability,advanced automotive systems,constant power load,continuous conduction mode,discontinuous conduction mode,dynamic negative impedance,hardware prototype,multiconverter DC power system control,Constant power loads,Constant power loads (CPLs),dc/dc power converters,distributed power systems,negative impedance instability,parasitics,stability
Automotive electronics,DC-BUS,Control theory,Voltage,Power system simulation,Electric power system,Electrical impedance,Electronic engineering,Converters,Control engineering,Engineering,Parasitic extraction
Journal
Volume
Issue
ISSN
55
6
0278-0046
Citations 
PageRank 
References 
13
0.92
8
Authors
1
Name
Order
Citations
PageRank
Alireza Khaligh142650.50