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Small Signal Model and Control of a Series Resonant Inverter with an Auxiliary Switched Capacitor Cell Using Describing Function

Title
Small Signal Model and Control of a Series Resonant Inverter with an Auxiliary Switched Capacitor Cell Using Describing Function
Author
김래영
Keywords
Asymmetrical PWM control scheme; Switched capacitor cell; IH series resonant tank; Describing function
Issue Date
2015-06
Publisher
IEEE
Citation
Power Electronics and ECCE Asia (ICPE-ECCE Asia), 2015 9th International Conference, Page.435-442
Abstract
The modeling and control of a soft-switched inverter with a switched capacitor cell is a challenging task, since the capacitor operates for a short time. This paper presents a unique technique to model the voltage fed high frequency series load resonant inverter with an auxiliary switched capacitor cell. The main objective of this paper is to demonstrate the dynamic characteristics of the switched capacitor type inverter and to control the capacitor-clamped ZVS high frequency inverter circuit using the PWM control scheme. There are various types of modeling methods applied to converters, such as average modeling, phasor transformation modeling, all of them however cannot be applied in resonant type inverters due to the variables of resonant inverter vary incessantly. Thus, an extended describing function method is utilized to model the resonant inverter circuit. The model of the series inverter circuit has been performed based on an asymmetrical PWM control scheme. The control performances of the high frequency inverter with the soft-switching operation ranges are verified through a cogency process.
URI
http://ieeexplore.ieee.org/document/7167822/http://hdl.handle.net/20.500.11754/25819
ISBN
978-8-9570-8254-6
ISSN
2150-6086; 2150-6078
DOI
10.1109/ICPE.2015.7167822
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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