Ultracapacitor storage enabled global MPPT for photovoltaic central inverters

Nicolas Muller, Hugues Renaudineau, Freddy Flores-Bahamonde, Samir Kouro, Patrick Wheeler

Resultado de la investigación: Contribución a los tipos de informe/libroContribución a la conferenciarevisión exhaustiva

8 Citas (Scopus)


In most large-scale grid-tied photovoltaic (PV) plants, central inverter configurations are used, mainly due to higher converter efficiency and lower cost per kW. However, compared to other configurations, its Maximum Power Point Tracking (MPPT) efficiency is the lowest since it is the less distributed configuration. Under non-uniform conditions, as mismatch caused by aging and/or partial shading, several local maxima may arise in the PV curve, hence requiring additional actions to maximize the output power of the PV plant. Moreover, tighter grid codes have appeared, requiring for PV systems to limit power fluctuations. This paper presents an alternative to perform Global MPPT (GMPPT) while complying with stiffer grid code limitations. The proposed alternative adds an Energy Storage System (ESS) at inverter level, consisting of an ultracapacitor (UC) bank connected to the DC-link of a PV central inverter through interleaved DC-DC power converters. The proposed configuration is preliminary validated through simulations and tested under extreme conditions. The performance of the system is analyzed and compared to other existing solutions.

Idioma originalInglés
Título de la publicación alojadaProceedings - 2017 IEEE International Symposium on Industrial Electronics, ISIE 2017
EditorialInstitute of Electrical and Electronics Engineers Inc.
Número de páginas6
ISBN (versión digital)9781509014125
EstadoPublicada - 3 ago. 2017
Publicado de forma externa
Evento26th IEEE International Symposium on Industrial Electronics, ISIE 2017 - Edinburgh, Scotland, Reino Unido
Duración: 18 jun. 201721 jun. 2017

Serie de la publicación

NombreIEEE International Symposium on Industrial Electronics


Conferencia26th IEEE International Symposium on Industrial Electronics, ISIE 2017
País/TerritorioReino Unido
CiudadEdinburgh, Scotland

Áreas temáticas de ASJC Scopus

  • Ingeniería eléctrica y electrónica
  • Ingeniería de control y sistemas


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