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http://dx.doi.org/10.6113/JPE.2017.17.5.1338

Modified RCC MPPT Method for Single-stage Single-phase Grid-connected PV Inverters  

Boonmee, Chaiyant (Department of Electrical Engineering, Faculty of Engineering, Chiang Mai University)
Kumsuwan, Yuttana (Department of Electrical Engineering, Faculty of Engineering, Chiang Mai University)
Publication Information
Journal of Power Electronics / v.17, no.5, 2017 , pp. 1338-1348 More about this Journal
Abstract
In this study, a modified ripple correlation control (RCC) maximum-power point-tracking (MPPT) algorithm is proposed for a single-stage single-phase voltage source inverter (VSI) on a grid-connected photovoltaic system (GCPVS). Unlike classic RCC methods, the proposed algorithm does not require high-pass and low-pass filters or the increment of the AC component filter function in the voltage control loop. A simple arithmetic mean function is used to calculate the average value of the photovoltaic (PV) voltage, PV power, and PV voltage ripples for the MPPT of the RCC method. Furthermore, a high-accuracy and high-precision MPPT is achieved. The performance of the proposed algorithm for the single-stage single-phase VSI GCPVS is investigated through simulation and experimental results.
Keywords
Arithmetic mean function; Grid-connected photovoltaic system; Maximum-power point tracking; Ripple correlation control; Single-stage single-phase voltage source inverter;
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