Detalles del recurso
Pertenece a:
UPCommons - E-prints UPC Universitat Politècnica de Catalunya
Descripción: The main objective of this study is to increase the penetration
level of photovoltaic (PV) power production in low-voltage
(LV) grids by means of solar inverters with reactive power control
capability. This paper underlines weak points of standard reactive
power strategies which are already imposed by certain grid
codes, and then, the study introduces a new reactive power control
method that is based on sensitivity analysis. The sensitivity analysis
shows that the same amount of reactive power becomes more
effective for grid voltage support if the solar inverter is located
at the end of a feeder. Based on this fundamental knowledge, a
location-dependent power factor set value can be assigned to each
inverter, and the grid voltage support can be achieved with less
total reactive power consumption. In order to prevent unnecessary
reactive power absorption from the grid during admissible voltage
range or to increase reactive power contribution from the inverters
that are closest to the transformer during grid overvoltage condition,
the proposed method combines two droop functions that are
inherited from the standard cosϕ(P) and Q(U) strategies. Its performance
comparison in terms of grid losses and voltage variation
with different reactive power strategies is provided by modeling
and simulating a real suburban LV network.
Autor(es): Demirok, Erhan - Casado Gonzalez, P. - Frederiksen, K.H.B. - Sera, Dezso - Rodríguez Cortés, Pedro - Teodorescu, Remus -
Id.: 55311870
Idioma:
inglés
-
Versión: 1.0
Estado: Final
Tipo: 9 p. -
Palabras clave: Àrees temàtiques de la UPC - Energies - Energia solar fotovoltaica - Instal·lacions solars de baixa potència connectades a la xarxa -
Tipo de recurso:
Article
-
Tipo de Interactividad: Expositivo
Nivel de Interactividad: muy bajo
Audiencia:
Estudiante
- Profesor
- Autor
-
Estructura: Atomic
Coste: no
Copyright: sí
: Restricted access - publisher's policy
Formatos: 9 p. -
Requerimientos técnicos: Browser: Any -
Relación:
[References] http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6096349&tag=1
Fecha de contribución: 05-may-2013
Contacto:
Localización:
* Demirok, E. [et al.]. Local reactive power control methods for overvoltage prevention of distributed solar inverters in low-voltage grids. "Progress in photovoltaics", 27 Desembre 2011, vol. 1, núm. 2, p. 174-182.
* 1062-7995
* 10.1109/JPHOTOV.2011.2174821
