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    Lookup Table Technique by using Irradiation Intensity and Duty Cycle for Faster MPPT Application
    (2023-01-01)
    Lapkitticharoenchai, Yuttikarn
    ;
    Jangwanitlert, Anuwat
    This research shows how Lookup Table technique can track MPP. This method uses calculation to find the exact value of duty cycle that make PV panel reach MPP. Therefore, its speed is faster than classical techniques especially P&O because knowing the exact value of duty cycle can make the controller control the switching device that makes PV reach MPP directly. Moreover, the swing at MPP is less P&O. However, the Lookup Table technique still be relied P&O to track MPP in the first period for automatically recording data into the Table for the Lookup Table technique. Hence, this method is going to be combined by both of P&O and Lookup Table. It is relied on the condition which technique is going to be operated. Lookup Table technique will be operated instead of P&O when the recorded data are enough and under defined the conditions that will be explain in this paper.
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    Novel MPPT Methodology by using Daily Recorded Lookup Table Technique: Relationship between Duty Cycle and Temperature
    (2022-01-01)
    Lapkitticharoenchai, Yuttikarn
    ;
    Jangwanitlert, Anuwat
    This paper shows the new technique of tracking Maximum Power Point (MPP) that is faster than P&O one. Furthermore, it can reduce the swing of MPP but P&O technique never deal with. This technique uses automatically selective technique between P&O and Lookup Table to reach MPP. At first, the controller selects P&O technique to track MPP and record the data on relationship between temperature and duty cycle into the Table. When the data in the Table are more enough and the recent temperature value is under defined condition, the controller will change P&O to Lookup Table technique automatically. However, the recorded data in the Table will be reset every day for tracking MPP accurately.
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    Interleaved buck-boost charger by using automatically selective technique between P&O and Lookup Table for novel MPPT application
    (2016-09-06)
    Jaisa-Ard, Yuttikarn
    ;
    Jangwanitlert, Anuwat
    This paper shows the circuit and methodology of the new charger for tracking MPP on any level of irradiation by using Matlab Simulink Program. The circuit is the Interleaved Buck-Boost that is used to reduce output of ripple voltage and ripple current. The methodology is used and combined between P&O MPPT and Lookup Table MPPT. However, the P&O MPPT is the basic system to control the tracking of MPPT and record the values of both irradiation intensity and duty cycle in the Table. When the real value of irradiation intensity is under defined condition, the system operation will turn P&O MPPT to Lookup Table MPPT automatically. Therefore, the system operates MPPT quickly and solves the problem of the variation value of MPPT.
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    Maximum power point tracking using fuzzy logic control for photovoltaic systems
    (2011-07-26)
    Takun, Pongsakor
    ;
    Kaitwanidvilai, Somyot
    ;
    Jettanasen, Chaiyan
    In this paper, a fuzzy logic control (FLC) is proposed to control the maximum power point tracking (MPPT) for a photovoltaic (PV) system. The proposed technique uses the fuzzy logic control to specify the size of incremental current in the current command of MPPT. As results indicated, the convergence time of maximum power point (MPP) of the proposed algorithm is better than that of the conventional Perturb and Observation (P&O) technique.