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A master's thesis from Aalborg University
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MPPT Wind and Photovoltaic using multiple input DC/DC converter

Author

Term

4. term

Publication year

2014

Submitted on

Pages

107

Abstract

Dette projekt udvikler en to‑indgangs DC/DC‑omformer (en kreds, der tilpasser spændinger fra to jævnstrømskilder) til at styre et hybridt anlæg med solceller og en vindmølle med lodret akse. Målet er at køre anlægget ved det maksimale effektpunkt (MPPT), en teknik der løbende finder det driftspunkt, hvor der kan hentes mest mulig effekt trods skiftende sol og vind. Først undersøger vi begge energikilder grundigt for at forstå deres virkemåde og sammenligner MPPT‑algoritmer for at vælge den mest egnede. Derefter udvikler vi modeller af solcelleanlægget og turbine‑generatoren og bruger dem til at simulere forskellige flerindgangs‑omformertopologier. På den baggrund vælges en passende to‑indgangs omformer, og dens styring udformes og afprøves i simulation. Til sidst bygges en prototype, som testes i laboratoriet og efterfølgende sammen med begge energikilder.

This project develops a two‑input DC‑DC converter (a circuit that adapts voltages from two direct‑current sources) to manage a hybrid system combining solar panels and a vertical‑axis wind turbine. The goal is to operate at the maximum power point (MPPT), a technique that continually finds the operating point where the system delivers the most power despite changing sun and wind. We first study both energy sources to understand their behavior and compare MPPT algorithms to select the most suitable one. We then build models of the PV array and the turbine‑generator and use them to simulate candidate multi‑input converter topologies. Based on this analysis, we select an appropriate two‑input converter and design its control, which is tested in simulation. Finally, we construct a prototype and test it in the laboratory, followed by tests with both power sources.

[This abstract was generated with the help of AI]