Grid-connected converters with virtual electromechanical characteristics: experimental verification
Grid-connected power converters, which are frequently used to link renewable generation plants with the grid, are required to provide a better functionality for large scale integration of renewables. They are expected to be gridfriendly, or even grid-supportive, instead of simply grid-feeding or gri...
| Autores: | , , , , |
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| Formato: | artículo |
| Fecha de publicación: | 2017 |
| País: | España |
| Recursos: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/113927 |
| Acesso em linha: | https://hdl.handle.net/2117/113927 |
| Access Level: | acceso abierto |
| Palavra-chave: | Electric current converters DC-AC power conversion power generation control synchronous power controller virtual electromechanical characteristics. Convertidors continu-altern Àrees temàtiques de la UPC::Enginyeria electrònica |
| Resumo: | Grid-connected power converters, which are frequently used to link renewable generation plants with the grid, are required to provide a better functionality for large scale integration of renewables. They are expected to be gridfriendly, or even grid-supportive, instead of simply grid-feeding or grid-demanding. This paper designs a synchronous power controller for grid-connected converters in detail, emulating the electromechanical characteristics of synchronous machines and improving even its actual performance, as it is based on a virtual approach. Based on this design, the grid-interfacing units are capable of showing inertia, damping, and droop characteristics as synchronous machines and presenting thus a grid-supporting behavior. The detailed control design and experimental validation on a 10 kW laboratory setup acts as the main contribution of this paper, compared with the existing studies on generator emulation controls. |
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