DocumentCode :
3194968
Title :
Research and improvement of maximum power point tracking for photovoltaic systems
Author :
Wu, Yu-En ; Shen, Chih-Lung ; Wu, Chia-Yu
Author_Institution :
Dept. of Electron. Eng., Nat. Kaohsiung First Univ. of Sci. & Technol., Kaohsiung, Taiwan
fYear :
2009
fDate :
2-5 Nov. 2009
Firstpage :
1308
Lastpage :
1312
Abstract :
In this paper, the advantages/disadvantages of several commonly used maximum power point tracking algorithm (Perturb & Observe, Incremental Conductance, Three Points Weighting, and Improved Perturb & Observe) are firstly discussed. Then, a Modified Perturb & Observe (MPO) method is proposed to achieve maximum power point tracking (MPPT) for a PV (photovoltaic) system and to improve the shortcomings of prior methods. The MPO method possesses a conveniently regulated capability of the perturbation, and stopping perturb while tracking to near the maximum power point. Such features can improve the power consumption problem of traditional Perturb & observe (PO) method in the maximum power point, while also increasing the speed of maximum power tracking to increase the system dynamic response. In order to verify the effectiveness of the proposed MPO method, a 120 W PV system will be established, the MPO method and the others MPPT methods is used, respectively and compared. Finally, simulation and experimental results will be presented to verify the feasibility of the MPO algorithm.
Keywords :
maximum power point trackers; photovoltaic power systems; maximum power point tracking; modified perturb & observe method; photovoltaic systems; power 120 W; power consumption problem; stopping perturb; system dynamic response; Acceleration; Control systems; Energy consumption; Flowcharts; Lighting; Microcontrollers; Photovoltaic systems; Power generation; Pulse width modulation; Solar power generation; MPPT; PV systems;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics and Drive Systems, 2009. PEDS 2009. International Conference on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-4166-2
Electronic_ISBN :
978-1-4244-4167-9
Type :
conf
DOI :
10.1109/PEDS.2009.5385787
Filename :
5385787
Link To Document :
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