Development and implementation of a unified hierarchical DC droop control scheme for DC microgrids
This work focuses on the control design of a DC microgrid formed by two DC sources, two Dual Active Bridge (DAB) converters connecting theses sources to a DC bus which, in turn, constitutes the input of a DC/AC grid-connected inverter. The control strategy is based on a three-level Droop DC techniqu...
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| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/178284 |
| Acceso en línea: | https://hdl.handle.net/2117/178284 |
| Access Level: | acceso abierto |
| Palabra clave: | Power electronics Photovoltaic power generation DC microgrid Droop DC unified hierarchical DC Droop Dual Active Bridge DAB control converter power power electronics Electrònica de potència Energia solar fotovoltaica Àrees temàtiques de la UPC::Enginyeria electrònica |
| Sumario: | This work focuses on the control design of a DC microgrid formed by two DC sources, two Dual Active Bridge (DAB) converters connecting theses sources to a DC bus which, in turn, constitutes the input of a DC/AC grid-connected inverter. The control strategy is based on a three-level Droop DC technique which is in charge of ensuring fast response, stable voltage and steady-state controlled power sharing. The work also suggests a variant of the Droop-based control to improve the system?s performance. The proposed design is validated at simulation and experimental levels on a laboratory prototype of 40 kW performing tests at 12 kW. |
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