Original scientific paper
https://doi.org/10.7305/automatika.2016.10.1101
Experimental Verification and Comparative Study of Various MPPT Algorithms
Yuval Beck
; Faculty of Engineering, Holon Institute of Technology, 52 Golumb st. , Holon 5810201, Israel
Nadav Sober
; Faculty of Engineering, Holon Institute of Technology, 52 Golumb st. , Holon 5810201, Israel
Abstract
Choosing and implementing a Maximum Power Point Tracking (MPPT) algorithm in a photovoltaic (PV) system, along with choosing the power converter, constitutes the fundamental basic capabilities of a photovoltaic system. MPPT techniques are implemented in photovoltaic systems to achieve full utilization of PV array output power. Today there is a wide variety of MPPT algorithms, each one has its advantages and disadvantages. This paper presents theoretical, as well as experimental comparison results, in several aspects regarding four MPPT methods based on the basic two MPPT algorithms (Perturb and Observe, Incremental Conductance), implemented on a single DC/DC converter, under the same experimental conditions. The theoretical and experimental comparison is performed for characteristics of ripple around the MPP and the convergence time. The experimental results are provided and supported by theoretical analysis and show that gradient based methods have better convergence time as well as ripple values in comparison to fixed step methods.
Keywords
Algorithms; Maximum Power Point Tracking; Photovoltaic; renewable energy
Hrčak ID:
179286
URI
Publication date:
25.1.2017.
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