SciELO - Scientific Electronic Library Online

 
vol.82 issue192Analysis of voltage sag compensation in distribution systems using a multilevel DSTATCOM in ATP/EMTPEffects on lifetime of low voltage conductors due to stationary power quality disturbances author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


DYNA

Print version ISSN 0012-7353

Abstract

RAMOS-PAJA, Carlos Andrés; SAAVEDRA-MONTES, Andrés Julián  and  TREJOS, Luz Adriana. Estimating the produced power by photovoltaic installations in shaded environments. Dyna rev.fac.nac.minas [online]. 2015, vol.82, n.192, pp.37-43. ISSN 0012-7353.  http://dx.doi.org/10.15446/dyna.v82n192.48566.

A model to improve the estimation of the power and energy from photovoltaic installations under dynamic shading conditions is proposed in this paper. The model considers the shaded profile in each photovoltaic module and the temperature profile to update the model parameters of each photovoltaic module. The impact of dynamic shades on the power production is analyzed, illustrating the large errors introduced by classical prediction approaches, which consider non-shading at all or average shading. Moreover, a procedure to model the shades profile in any environment is described and illustrated. Finally, experimental irradiance and environment temperature profiles are used to evaluate the performance of the proposed model in contrast with the classical approaches. The results illustrate that the classical approaches overestimate the power produced by the photovoltaic array, in contrast with the power produced by the proposed model.

Keywords : mismatching conditions; photovoltaic generator; power and energy prediction; shade modeling.

        · abstract in Spanish     · text in English     · English ( pdf )