Tan, C. W. and Green, T. C. and Hernandez-Aramburo, C. A. (2008) Analysis of perturb and observe maximum power point tracking algorithm for photovoltaic applications. In: Proceedings of 2008 2nd IEEE International Conference on Power and Energy (PECon 2008) , 2008, Johor Bahru, Johor.
Official URL: http://dx.doi.org/10.1109/PECON.2008.4762468
This paper highlights the compromises between good steady-state accuracy and the speed of convergence in Perturb and Observe (P&O) maximum power point tracking (MPPT) algorithm. Three fixed step-sizes and a variable step-size have been defined as the perturbation step-sizes and the effect of applying different step-sizes for P&O algorithm are discussed. The perturbation step-sizes have been simulated using Matlab/Simulink and the maximum power tracking efficiency for each step-size is analysed. These step-sizes have been experimentally tested using a PV illumination test rig to emulate rapid changes in shadow effect on a PV panel. The fixed step-sizes are tested using a direct duty-cycle control boost converter while the variable step-size is examined by applying current-mode controlled boost converter. It is concluded that the application of fixed perturbation step-size has a limitation in performing MPPT while a variable step-size is necessary to balance the competing aims of speed and accuracy.
|Item Type:||Conference or Workshop Item (Paper)|
|Uncontrolled Keywords:||Photovoltaic, maximum power point tracking, perturb and observe|
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering|
|Deposited By:||Siti Khairiyah Nordin|
|Deposited On:||14 Oct 2011 08:46|
|Last Modified:||14 Oct 2011 08:46|
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