Maximum power point tracking in PV systems based on adaptive control and sliding mode control
Journal Title: Revista Facultad de Ingeniería-Universidad de Antioquia - Year 2015, Vol 1, Issue 75
Abstract
Photovoltaic (PV) systems are commonly controlled using PI or PID structures, which cannot ensure global stability and a constant settling time. Therefore, the optimization algorithms, e.g. Perturb and Observe (P&O), are designed using the highest settling time in the operating range, which produces a slow tracking of the maximum power point (MPP) for the largest part of the operation range, introducing dynamic power losses to the system. This paper proposes to combine an adaptive controller and a sliding mode current controller (SMCC) to guarantee global stability and a constant settling time for any operation condition, which enable to increase the generated power in comparison with PI and PID controllers. The SMCC enables to mitigate the system perturbations and guarantee global stability, while the adaptive controller defines the reference of the SMCC to ensure a constant settling time. The design of the new control structure is supported by mathematical analyses and simulations made in Matlab®, where the robustness of the system is validated.
Authors and Affiliations
Paula Andrea Ortiz-Valencia, Luz A. Trejos-Grisales, Carlos A. Ramos-Paja
Keywords
Related Articles
- EP ID EP626933
- DOI 10.17533/udea.redin.n75a08
- Views 118
- Downloads 0
Acoustic and mechanic characterization of materials used in manufacturing the soundboard of the spanish guitar: influence in the sonority
This paper presents a study relating the most commonly used materials in manufacturing the top plate of the Spanish guitar and some sound characteristics such as timbre, volume, and duration. Theoretically, the wood infl...
Experimental characterization of thermal hydraulic performance of louvered brazed plate fin heat exchangers
Louvered fins are commonly used in compact heat exchangers to increase the surface area, turbulence, and initiate new boundary layer growth required to improve the heat transfer performance without a significant increase...
Incorporación de otras materias primas como fuentes de azúcares fermentables en destilerías existentes de alcohol
This paper presents alternatives for meeting the deficit in sugared substrates in a territory with several sugar mills and ethanol distilleries so they can reach their current production capacity. By using secondary curr...
Efecto del proceso de fusión y envejecimiento en la síntesis de zeotipos a partir de cenizas volantes
En este estudio, se evalúa el uso de una muestra de cenizas volantes de TERMOPAIPA (Boyacá, Colombia) como material de partida para la síntesis de zeotipos a escala de laboratorio a través de su transformación por fusión...
GMM-BI: A methodological guide to improve organizacional maturity in Business Intelligence
Maturity models in Business Intelligence (BI) put forth a baseline for measuring the value of initiatives in this area, helping organizations to understand where they are and what improvements are needed. In this context...