Discrete Time Modeling and Control of DC/DC Switching Converter for Solar Energy Systems

Distributed generation networks including micro grids benefit from solar cells that are controlled by dc-dc converters. In this research a nonlinear discrete-time model for a buck converter tied to a solar system is derived with unknown internal dynamics. Then, adaptive neural network (NN) controlle...

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Main Author:	Kazemlou, Shaghayegh
Other Authors:	Mehraeen, Shahab
Format:	Others
Language:	en
Published:	LSU 2013
Subjects:	Electrical & Computer Engineering
Online Access:	http://etd.lsu.edu/docs/available/etd-10092013-142149/

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spelling	ndltd-LSU-oai-etd.lsu.edu-etd-10092013-1421492013-12-05T03:46:03Z Discrete Time Modeling and Control of DC/DC Switching Converter for Solar Energy Systems Kazemlou, Shaghayegh Electrical & Computer Engineering Distributed generation networks including micro grids benefit from solar cells that are controlled by dc-dc converters. In this research a nonlinear discrete-time model for a buck converter tied to a solar system is derived with unknown internal dynamics. Then, adaptive neural network (NN) controller is employed to enhance stability of dc-dc converter connected to grid-tie inverter (GTI) in the presence of power system disturbances. The NN weights are tuned online by using a novel update law. By using Lyapunov techniques, all signals can be shown to be uniformly ultimately bounded (UUB). In addition, the interaction of the converter with the GTI is investigated to assure stability of the entire interconnected system while the GTI is controlled via a novel stabilizer similar to power system stabilizer (PSS). The proposed nonlinear discrete-time converter controller along with the GTI, equipped with PSS, is simulated in Matlab Simulink environment. The results have highlighted the effectiveness of the proposed modeling and controller design. Mehraeen, Shahab Mendrela, Ernest Czarnecki , Leszek S McAnelly , Michael LSU 2013-12-04 text application/pdf http://etd.lsu.edu/docs/available/etd-10092013-142149/ http://etd.lsu.edu/docs/available/etd-10092013-142149/ en unrestricted I hereby certify that, if appropriate, I have obtained and attached herein a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to LSU or its agents the non-exclusive license to archive and make accessible, under the conditions specified below and in appropriate University policies, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.
collection	NDLTD
language	en
format	Others
sources	NDLTD
topic	Electrical & Computer Engineering
spellingShingle	Electrical & Computer Engineering Kazemlou, Shaghayegh Discrete Time Modeling and Control of DC/DC Switching Converter for Solar Energy Systems
description	Distributed generation networks including micro grids benefit from solar cells that are controlled by dc-dc converters. In this research a nonlinear discrete-time model for a buck converter tied to a solar system is derived with unknown internal dynamics. Then, adaptive neural network (NN) controller is employed to enhance stability of dc-dc converter connected to grid-tie inverter (GTI) in the presence of power system disturbances. The NN weights are tuned online by using a novel update law. By using Lyapunov techniques, all signals can be shown to be uniformly ultimately bounded (UUB). In addition, the interaction of the converter with the GTI is investigated to assure stability of the entire interconnected system while the GTI is controlled via a novel stabilizer similar to power system stabilizer (PSS). The proposed nonlinear discrete-time converter controller along with the GTI, equipped with PSS, is simulated in Matlab Simulink environment. The results have highlighted the effectiveness of the proposed modeling and controller design.
author2	Mehraeen, Shahab
author_facet	Mehraeen, Shahab Kazemlou, Shaghayegh
author	Kazemlou, Shaghayegh
author_sort	Kazemlou, Shaghayegh
title	Discrete Time Modeling and Control of DC/DC Switching Converter for Solar Energy Systems
title_short	Discrete Time Modeling and Control of DC/DC Switching Converter for Solar Energy Systems
title_full	Discrete Time Modeling and Control of DC/DC Switching Converter for Solar Energy Systems
title_fullStr	Discrete Time Modeling and Control of DC/DC Switching Converter for Solar Energy Systems
title_full_unstemmed	Discrete Time Modeling and Control of DC/DC Switching Converter for Solar Energy Systems
title_sort	discrete time modeling and control of dc/dc switching converter for solar energy systems
publisher	LSU
publishDate	2013
url	http://etd.lsu.edu/docs/available/etd-10092013-142149/
work_keys_str_mv	AT kazemloushaghayegh discretetimemodelingandcontrolofdcdcswitchingconverterforsolarenergysystems
_version_	1716616435688538112

Discrete Time Modeling and Control of DC/DC Switching Converter for Solar Energy Systems

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