Bilinear discrete-time modeling for enhanced stability prediction and digital control design

Autor:	B.S. Heck, V. Rajasekaran, Jian Sun
Rok vydání:	2003
Předmět:	Approximation theory Discrete time and continuous time Control theory Bilinear interpolation Digital control Transient response Matrix exponential Electrical and Electronic Engineering Converters Stability (probability) Mathematics
Zdroj:	IEEE Transactions on Power Electronics. 18:381-389
ISSN:	1941-0107 0885-8993
DOI:	10.1109/tpel.2002.807167
Popis:	This paper presents a new bilinear discrete-time modeling method for switching power converter circuits. The method utilizes a new approximation of the matrix exponential involved in the exact discrete-time models. Compared to the conventional bilinear discrete-time models or to the continuous-time averaged models, the new bilinear models provide a means for more reliable and accurate stability and transient response prediction. They also lend themselves better to digital control design than do the exact discrete-time models due to their simplicity. The modeling method is validated by several example converters, for which traditional averaged models and conventional bilinear discrete-time models fail to predict the stability characteristics correctly.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e5f5d7fa690e049e4f10c9d53b1b96c9 https://doi.org/10.1109/tpel.2002.807167 Zobrazit plný text záznamu