Simulation and experimental design of a new advanced variable step size Incremental Conductance MPPT algorithm for PV systems
Autor: | Abdelhamid Loukriz, Mourad Haddadi, Sabir Messalti |
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Rok vydání: | 2015 |
Předmět: |
Flyback converter
020209 energy Applied Mathematics 020208 electrical & electronic engineering Photovoltaic system Conductance 02 engineering and technology Control circuit Maximum power point tracking Computer Science Applications Modeling and simulation Variable (computer science) Control and Systems Engineering Control theory Mppt algorithm 0202 electrical engineering electronic engineering information engineering Electronic engineering Electrical and Electronic Engineering Instrumentation Mathematics |
Zdroj: | ISA transactions. 62 |
ISSN: | 1879-2022 |
Popis: | Improvement of the efficiency of photovoltaic system based on new maximum power point tracking (MPPT) algorithms is the most promising solution due to its low cost and its easy implementation without equipment updating. Many MPPT methods with fixed step size have been developed. However, when atmospheric conditions change rapidly , the performance of conventional algorithms is reduced. In this paper, a new variable step size Incremental Conductance IC MPPT algorithm has been proposed. Modeling and simulation of different operational conditions of conventional Incremental Conductance IC and proposed methods are presented. The proposed method was developed and tested successfully on a photovoltaic system based on Flyback converter and control circuit using dsPIC30F4011. Both, simulation and experimental design are provided in several aspects. A comparative study between the proposed variable step size and fixed step size IC MPPT method under similar operating conditions is presented. The obtained results demonstrate the efficiency of the proposed MPPT algorithm in terms of speed in MPP tracking and accuracy. |
Databáze: | OpenAIRE |
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