Optimum Power Point Tracking for PV Array Using Extremum Seeking Approach
Abstract
The Objective of the project is to obtain the optimum
power point tracking (OPPT) control for stand-alone solar power generation systems. A maximum power point tracking (MPPT) algorithm is used to obtain the optimum value of voltage and current
from the solar array according to the load variations. Converters for photovoltaic (PV) systems consist of a dc/dc converter. Therefore, only part of the produced electrical energy is utilized. MPPT
controller is proposed to achieve asymptotic MPPT control, in which the observer and controller Gains are obtained by separately solving two sets of linear matrix inequalities by using MatLab simulation. In a brief the functioning of the system to be implemented may be summarized as follows. The output from the solar array (V/I) is given
to a dc to dc converter. The switching times (ON/OFF times) of this DC-DC converter is controlled by PWM output obtained from an MPPT controller, which takes input from the same solar array. This is required to match the impedances on the load side and the input side
(solar array) this will ensure maximum power output even for large variations of the load under varying irradiance conditions. Combination of mechanical and electrical tracking is used to improve the efficiency.
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Dynamic Maximum Power Point Tracker For Photovoltaic Applications,
Midya, P.;Krein,P.T; Turnbull,R.J.;Reppa,R.;Kimball, Dept. of Electr. &
Comput. Eng., Illinois Univ., Urbana, I06 August 2002.
A New Maximum Power Point Tracker Of Photovoltaic Arrays Using
Fuzzy Controller,Chung-Yuen Won; Duk-Heon Kim; Sei-Chan Kim;
Won-Sam Kim; Hack-Sung Kim; Dept. of Electr. Eng., Sung Kyun
Kwan Univ., Seoul 06 August 2002.
Feed-Forward Control Of The Maximum Power Point In Pv
Installations, Enslin,J.H.R.;Snyman,D.B.; Dept. of Electr. & Electron.
Eng., Stellenbosch Univ 06 August 2002.
Interfacing Photovoltaic Panels via a Capacitive Converter, ebruary
Comparative Study of Maximum-Power-Point Trackers for
Photovoltaic Panels Using Switching-Frequency Modulation Scheme K.
K. Tse, Member, IEEE, Billy M. T. Ho, Student Member, IEEE, Henry
Shu-Hung Chung, Senior Member, IEEE,and S. Y. Ron Hui, Fellow,
IEEE.
A Novel Method To Estimate The Maximum Power For A Photovoltaic
Inverter System,tiz-Rivera,E.I.;FangPeng;15November2004
Self-Regulating Maximum Power Point Tracking For Solar Energy
Systems, Armstrong, S.;Hurley, W.G.; Power Electron. Res. Centre,
Nat. Univ. of Ireland, Galway, Ireland,08 August 2005
Comparison Of Photovoltaic Array Maximum Power Point Tracking
Techniques Trishan Esram, Patrick L. Chapman ,JUNE 2007
A New Topology With High Efficiency Throughout All Load Range For
Photovoltaic Pcs Byung-Duk Min; Jong-PilLee;Jong-HyunKim; Tae-
JinKim; Dong-WookYoo;Eui-HoSong; Korea Electro-Technol . Res.
Inst. (KERI), Changwon, South Korea 09 July 2008
Tracking System And Mppt Control For Efficiency Improvement Of
Photovoltaic,Jung-SikChoi; Do-YeonKim;Ki-TaePark;Jung-
HoonChoi;Dong-HwaChung; Dept. of Electr. Control Eng., Sunchon
Nat. Univ., Sunchon 02 December 2008.
Development Of Maximum Power Point Tracker For Pv Panels Using
Sepic Converter Darla,R.B.; Amara Raja Power Syst. Ltd, Tirupati08
February 2008
Tracking System And Mppt Control For Efficiency Improvement Of
Photovoltaic,Jung-Sik Choi1 and Do-Yeon Kim2 and Ki-Tae Park
Maximum Power Point Tracker For A Multiple-Input Ćuk Dc-Dc
Converter, SungwooBae; Kwasinski,A. Dept. of Electr. & Comput.
Eng., Univ. of Texas at Austin, Austin, TX, USA 22 Oct. 2009
Highly Efficient Variable-Step-Size Maximum Power Point Tracker For
Pv Systems,Ahmed,E.M.; Shoyama,M.;Dept. of Electr. Eng., Kyushu
Univ., Fukuoka, Japan18 Sept. 2010.
Maximum Power Point Tracker For Solar Cells Based On Boost
Converter, ZhangHousheng; LiSuling; LiHaidong; Sch. of Electr. &
Electron. Eng., Shandong Univ. of Technol., Zibo, China ,16-18 April
T-S Fuzzy Maximum Power Point Tracking Control of Solar Power
Generation Systems, Chian-Song Chiu,IEEE transactions on energy
conversion, vol. 25, no. 4, december 2010.
Cascaded Dc–Dc Converter Photovoltaic Systems: Power Optimization
Issues ,10 January 2011 Brat
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