Performance Comparison of Maximum Power Point Tracking of Solar PV for Different Converters

Abstract

The performance and efficiency of a solar PV power generation are the main issues typically evaluated for optimal system operation. These usually rely on the solar array conversion efficiency and atmospheric condition. The proper operational performance of a solar PV system is dependent on module efficiency, maximum power point tracking (MPPT) efficiency and inverter efficiency. MPPT is implemented to a solar PV array using a converter circuit to extract maximum power and to improve the generated power quality for supply to the load or grid connection. This paper presents the Boost, Buck and Buck-Boost converter circuits implemented with Perturb and Observe (P&O) and Incremental Conductance (INC) MPPT algorithms. The detailed operation and implementation of P&O and INC techniques are discussed. MATLAB simulations of the converter circuits integrated with the different commercial PV modules (100 W, 1000 W and 10 kW) have been carried out to understand the efficiency and operation stability for both techniques. Furthermore, the results of both cases are critically compared, and their performances discussed. The simulation results exhibit that the boost converter for the P&O performs better than the INC and the buck and buck-boost converter for the INC performs better than the P&O across all power levels.

Keywords: Incremental conductance, maximum power point tracking, perturb and observe, solar PV

Cite this Article: Ihechiluru Anya, Mustafa Elfeitouri, Chitta Saha, Nazmul Huda, Koushik Guha. Performance comparison of maximum power point tracking of solar PV for different converters. International Journal of Mobile Computing Devices. 2020; 6(1): 21–29p.