Analyzing a four quadrant dc-dc Luo converter by means of signal flow graph modeling technique

In this paper, the signal flow graph technique and Mason gain formula are applied for extracting small signal model and transfer functions from control to output and from input to output. In order to investigate a rather complex system, a four quadrant dc-dc Luo converter known as a second generatio...

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Main Authors: Ebrahim Babaei, Leila Mohammadian, Elshan Davaran Hagh
Format: Article
Language:English
Published: Elsevier 2018-12-01
Series:Ain Shams Engineering Journal
Online Access:http://www.sciencedirect.com/science/article/pii/S2090447916301198
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author Ebrahim Babaei
Leila Mohammadian
Elshan Davaran Hagh
author_facet Ebrahim Babaei
Leila Mohammadian
Elshan Davaran Hagh
author_sort Ebrahim Babaei
collection DOAJ
description In this paper, the signal flow graph technique and Mason gain formula are applied for extracting small signal model and transfer functions from control to output and from input to output. In order to investigate a rather complex system, a four quadrant dc-dc Luo converter known as a second generation and high order power electronic converter is chosen for modeling and analyzing purposes. This converter has received the least attention and its dynamic modeling and analysis is not reported in literature. To get rid of complex equations in modeling high order converters, signal flow graph method is applied to manipulate the equations. Hence, the small signal models for two converters in different states are derived in detail and the obtained models are used to achieve the frequency responses and do stability analysis. The whole paper shows that using the proposed method, derivation of small signal models for all states and frequency domain analysis can be easily carried out in detail. Keywords: Frequency response, Four quadrant Luo converter, Mason gain formula, Modeling, Signal flow graph
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spelling doaj.art-f566ef7ffa9c443b9c1ff4971b68f58f2022-12-21T22:21:44ZengElsevierAin Shams Engineering Journal2090-44792018-12-019413351348Analyzing a four quadrant dc-dc Luo converter by means of signal flow graph modeling techniqueEbrahim Babaei0Leila Mohammadian1Elshan Davaran Hagh2Corresponding author. Fax: +98 41 33300819.; Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, IranFaculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, IranFaculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, IranIn this paper, the signal flow graph technique and Mason gain formula are applied for extracting small signal model and transfer functions from control to output and from input to output. In order to investigate a rather complex system, a four quadrant dc-dc Luo converter known as a second generation and high order power electronic converter is chosen for modeling and analyzing purposes. This converter has received the least attention and its dynamic modeling and analysis is not reported in literature. To get rid of complex equations in modeling high order converters, signal flow graph method is applied to manipulate the equations. Hence, the small signal models for two converters in different states are derived in detail and the obtained models are used to achieve the frequency responses and do stability analysis. The whole paper shows that using the proposed method, derivation of small signal models for all states and frequency domain analysis can be easily carried out in detail. Keywords: Frequency response, Four quadrant Luo converter, Mason gain formula, Modeling, Signal flow graphhttp://www.sciencedirect.com/science/article/pii/S2090447916301198
spellingShingle Ebrahim Babaei
Leila Mohammadian
Elshan Davaran Hagh
Analyzing a four quadrant dc-dc Luo converter by means of signal flow graph modeling technique
Ain Shams Engineering Journal
title Analyzing a four quadrant dc-dc Luo converter by means of signal flow graph modeling technique
title_full Analyzing a four quadrant dc-dc Luo converter by means of signal flow graph modeling technique
title_fullStr Analyzing a four quadrant dc-dc Luo converter by means of signal flow graph modeling technique
title_full_unstemmed Analyzing a four quadrant dc-dc Luo converter by means of signal flow graph modeling technique
title_short Analyzing a four quadrant dc-dc Luo converter by means of signal flow graph modeling technique
title_sort analyzing a four quadrant dc dc luo converter by means of signal flow graph modeling technique
url http://www.sciencedirect.com/science/article/pii/S2090447916301198
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AT leilamohammadian analyzingafourquadrantdcdcluoconverterbymeansofsignalflowgraphmodelingtechnique
AT elshandavaranhagh analyzingafourquadrantdcdcluoconverterbymeansofsignalflowgraphmodelingtechnique