A local stability condition for dc grids with constant power loads
Currently, there are an increasing number of power electronics converters in electrical grids, performing the most diverse tasks, but most of them, work as constant power loads (CPLs). This work presents a sufficient condition for the local stability of dc linear time-invariant circuits with constan...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2017 |
| 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:2117/110130 |
| Acceso en línea: | https://hdl.handle.net/2117/110130 https://dx.doi.org/10.1016/j.ifacol.2017.08.002 |
| Access Level: | acceso abierto |
| Palabra clave: | Electric circuits constant power loads dc LTI circuits frequency domain methods linear matrix inequalities Local stability Convertidors de corrent elèctric Circuits elèctrics Àrees temàtiques de la UPC::Informàtica::Robòtica |
| Sumario: | Currently, there are an increasing number of power electronics converters in electrical grids, performing the most diverse tasks, but most of them, work as constant power loads (CPLs). This work presents a sufficient condition for the local stability of dc linear time-invariant circuits with constant power loads for all the possible equilibria (depending on the drained power) of the systems. The condition is shown as a method with successive steps that should be met. Its main step is expressed as a linear matrix inequality test which is important for easiness of verification reasons. The method is illustrated with two examples: a single-port RLC circuit connected to a CPL and a two-port linear dc circuit connected to two CPLs. |
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