An accurate model for simulating energetic behavior of PV grid connected inverters

Davila Gomez, Luis and Colmenar Santos, Antonio and Tawfik, Mohamed and Castro Gil, Manuel Alonso (2014). An accurate model for simulating energetic behavior of PV grid connected inverters. "Simulation Modelling Practice And Theory", v. 49 ; pp. 57-72. ISSN 1569-190X. https://doi.org/10.1016/j.simpat.2014.08.001.

Description

Title: An accurate model for simulating energetic behavior of PV grid connected inverters
Author/s:
  • Davila Gomez, Luis
  • Colmenar Santos, Antonio
  • Tawfik, Mohamed
  • Castro Gil, Manuel Alonso
Item Type: Article
Título de Revista/Publicación: Simulation Modelling Practice And Theory
Date: December 2014
ISSN: 1569-190X
Volume: 49
Subjects:
Freetext Keywords: Grid-connected photovoltaic systems; Empirical models; Efficiency; Parameter extraction; Modeling
Faculty: E.T.S.I. Diseño Industrial (UPM)
Department: Ingeniería Eléctrica, Electrónica Automática y Física Aplicada
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This paper proposes a new model for characterizing the energetic behavior of grid connected PV inverters. The model has been obtained from a detailed study of main loss processes in small size PV inverters in the market. The main advantage of the used method is to obtain a model that comprises two antagonistic features, since both are simple, easy to compute and apply, and accurate. One of the main features of this model is how it handles the maximum power point tracking (MPPT) and the efficiency: in both parts the model uses the same approach and it is achieved by two resistive elements which simulate the losses inherent to each parameter. This makes this model easy to implement, compact and refined. The model presented here also includes other parameters, such as start threshold, standby consumption and islanding behavior. In order to validate the model, the values of all the parameters listed above have been obtained and adjusted using field measurements for several commercial inverters, and the behavior of the model applied to a particular inverter has been compared with real data under different working conditions, taken from a facility located in Madrid. The results show a good fit between the model values and the real data. As an example, the model has been implemented in PSPICE electronic simulator, and this approach has been used to teach grid-connected PV systems. The use of this model for the maintenance of working PV facilities is also shown.

More information

Item ID: 40167
DC Identifier: http://oa.upm.es/40167/
OAI Identifier: oai:oa.upm.es:40167
DOI: 10.1016/j.simpat.2014.08.001
Official URL: http://www.sciencedirect.com/science/article/pii/S1569190X14001300
Deposited by: Memoria Investigacion
Deposited on: 05 May 2016 07:10
Last Modified: 31 Dec 2016 23:30
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