Experimental Verification and Comparative Study of Various MPPT Algorithms
| Autor: | Yuval Beck, Nadav Sober |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
General Computer Science business.industry Algorithms Maximum Power Point Tracking Photovoltaic renewable energy 020208 electrical & electronic engineering Photovoltaic system Control engineering 02 engineering and technology 021001 nanoscience & nanotechnology Maximum power point tracking algoritmi traženje točke najveće snage fotonaponski obnovljiva energija Renewable energy Power (physics) Control and Systems Engineering 0202 electrical engineering electronic engineering information engineering Electronic engineering 0210 nano-technology business Algorithm |
| Zdroj: | Automatika : časopis za automatiku, mjerenje, elektroniku, računarstvo i komunikacije Volume 57 Issue 2 |
| ISSN: | 1848-3380 0005-1144 |
| DOI: | 10.7305/automatika.2016.10.1101 |
| Popis: | Choosing and implementing a Maximum Power Point Tracking (MPPT) algorithm in a photovoltaic (PV) system, along with choosing the power converter, constitutes the fundamental basic capabilities of a photovoltaic system. MPPT techniques are implemented in photovoltaic systems to achieve full utilization of PV array output power. Today there is a wide variety of MPPT algorithms, each one has its advantages and disadvantages. This paper presents theoretical, as well as experimental comparison results, in several aspects regarding four MPPT methods based on the basic two MPPT algorithms (Perturb and Observe, Incremental Conductance), implemented on a single DC/DC converter, under the same experimental conditions. The theoretical and experimental comparison is performed for characteristics of ripple around the MPP and the convergence time. The experimental results are provided and supported by theoretical analysis and show that gradient based methods have better convergence time as well as ripple values in comparison to fixed step methods. Odabir i implementacija algoritma za traženje točke maksimalne snage (MPPT) zajedno s odabirom pretvarača snage određuje osnovna svojstva fotonaponskog sustava. MPPT algoritmi omogućuju iskorištavanje cjelokupne izlazne snage fotonaposnkog sustava. Danas postoji veliki broj različlitih MPTT algoritama, od kojih svaki ima svoje prednosti i mane. Ovaj rad predstavlja usporedbu teorijskih i eksperimentalnih rezultata četiriju MPPT metoda baziranih na dva MPPT algoritma (Perturbacije i promatranja, te Postepene vodljivosti), implementiranih na jednom DC/DC pretvaraču, pod istim eksperimentalnim uvjetima. Teorijska i eksperimentalna usporedba je provedena s obzirom na karakteristiku valovitosti oko točke maksimalne snage i vrijeme konvergencije. Eksperimentalni rezultati zajedno s teorijskom analizom pokazuju da gradijentne metode imaju bolje vrijeme konvergencije i vrijednosti valovitosti u odnosu na metode s fiksnim korakom. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|