Multi-model control strategy for DC bus regulation of a PISO converter in microgrids applications

Photovoltaic module connection/disconnection, cell mismatching or partial cell shading are problems that can occur in DC microgrids with several photovoltaic modules. The bus voltage regulation can be compromised when the microgrid does not contain storage elements and are affected by a trouble in e...

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Bibliographic Details
Main Authors: Correa, Carlos A., Calleja, Hugo, Rodriguez, Elias, Lopez-Nunez, Adolfo R., Aguilar-Castillo, Carlos
Format: Conference Proceeding
Language:English
Subjects:
Arrays
control strategy
DC microgrid system
DC-DC power converters
islanded
Microgrids
multi-model
PD control
PISO converter
Voltage control
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Description
Summary:Photovoltaic module connection/disconnection, cell mismatching or partial cell shading are problems that can occur in DC microgrids with several photovoltaic modules. The bus voltage regulation can be compromised when the microgrid does not contain storage elements and are affected by a trouble in energy sources; therefore, appropriate control strategies are required. This paper presents a new multi-model control strategy for DC bus voltage regulation in a microgrid that avoids the afore mentioned problems. The feasibility of the approach was verified in a 200 W experimental prototype. The proposed solution has also advantages such as: flexibility and modularity to expand the system, connecting more photovoltaic modules or PV arrangements.
ISSN:2329-3721
2329-3748
DOI:10.1109/ECCE.2015.7310138