alexa Abstract | A Fast-Converging MPPT Technique for Photovoltaic System with Modified SEPIC Converter under Fast- Varying SolarIrradiation and Load Resistance.
ISSN ONLINE(2278-8875) PRINT (2320-3765)

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering
Open Access

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Research Article Open Access


A fast-converging maximum power point tracking (MPPT) system is very essential for the photovoltaic (PV) system to ensure the rapid response with minimum power losses under fast-varying solar irradiation and load resistance. Traditionally, maximum power point (MPP) locus was used to provide such a fast response. However, the algorithm requires extra control loop or intermittent disconnection of the PV module. Hence, this paper proposes a simpler fast-converging MPPT technique, which excludes the extra control loop and intermittent disconnection. In the proposed algorithm, the relationship between the load line and the I–V curve is used with trigonometry rule to obtain the fast response. Results of the simulation and experiment using Modified SEPIC converter(which provide more static gain than simple SEPIC converter) showed that the response of the proposed algorithm is four times faster than the conventional incremental conductance algorithm during the load and solar irradiation variation. Consequently, the proposed algorithm has higher efficiency.

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Author(s): Amrutha Sugathan, V.M.Vijayan.


Fast converging, incremental conductance, maximum power point tracking (MPPT), photovoltaic (PV)system, Modified SEPIC., Electric Drivers and Application,Semiconductor Technology,Wireless Networking.

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