Comparative Studies of Three MPPT Strategies for Solar PV System
Abstract
The solar power technology is one of the most predominant technologies that serve as a major source of power supply. But, its initial cost is too high and its lesser efficiency has not made its use very attractive as an alternate. Hence, it is quite critical to use maximum power available from the solar PV panel and operate it at its highest energy conversion output. For this, the solar PV system has to function at the highest power output point. MPPT technique is used to make the system operate at MPP. The work proposed here compares the performance of fuzzy logic (FL) control method developed, with that of two other MPPT methods presently used by solar PV system and upholds which MPPT technique has better performance among them. Firstly, a MATLAB based PV array us developed. Then, three MPPT methods (Perturb and Observe (P&O), incremental conductance method and fuzzy logic method) are applied on the PV array model under constant insolation condition. Relative comparison of the performance of these three techniques showed that FL based control method developed is relatively superior and effective for MPPT. Keywords: Maximum power point tracking (MPPT), perturb and observe (P&O), maximum power point (MPP), solar photovoltaic (SPV) Cite this Article Kishan B, Kiran KG, Suresh HN, et al. Comparative Studies of Three MPPT Strategies for Solar PV System. Journal of Electronic Design and Technology. 2016; 7(3): 24–34p.
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