LEICI   25638
INSTITUTO DE INVESTIGACIONES EN ELECTRONICA, CONTROL Y PROCESAMIENTO DE SEÑALES
Unidad Ejecutora - UE
artículos
Título:
Stability Criteria for Input Filter Design in Converters with CPL: Applications in Sliding Mode Controlled Power Systems
Autor/es:
PULESTON P.F.; PULESTON P.F.; MORÉ, JERÓNIMO J.; ANDERSON AZZANO, JORGE LUIS; MORÉ, JERÓNIMO J.; ANDERSON AZZANO, JORGE LUIS
Revista:
Energies
Editorial:
MDPI
Referencias:
Año: 2019 vol. 12
Resumen:
Microgrids are versatile systems for integration of renewable energy sources and non-conventional storage devices. Sliding Mode techniques grant excellent features of robustness controlling power conditioning systems, making them highly suitable for microgrid applications. However, problems may arise when a converter is set to behave as a Constant Power Load (CPL). These issues manifest in the stability of internal dynamics (or Zero Dynamics), which is determined by the input filter of the power module. In this paper, a special Lyapunov analysis is conducted to address the nonlinear internal dynamics of SM controlled power modules with CPL. It takes advantage of a Liérnad-type description, establishing stability conditions and providing a secure operation region. These conditions are translated into conductance and invariant region diagrams, turning them into tools for the design of power module filters.