Info: Zenodo’s user support line is staffed on regular business days between Dec 23 and Jan 5. Response times may be slightly longer than normal.

Published December 18, 2017 | Version v1
Journal article Open

Battery sizing and rule-based operation of grid-connected photovoltaic-battery system: A case study in Sweden

  • 1. KTH Royal Institute of Technology
  • 2. Mälardalen University

Description

The optimal components design for grid-connected photovoltaic-battery systems should be determined with consideration of system operation. This study proposes a method to simultaneously optimize the battery capacity and rule-based operation strategy. The investigated photovoltaic-battery system is modeled using single diode photovoltaic model and Improved Shepherd battery model. Three rule-based operation strategies—including the conventional operation strategy, the dynamic price load shifting strategy, and the hybrid operation strategy—are designed and evaluated. The rule-based operation strategies introduce different operation parameters to run the system operation. multi-objective Genetic Algorithm is employed to optimize the decisional variables, including battery capacity and operation parameters, towards maximizing the system’s Self Sufficiency Ratio and Net Present Value. The results indicate that employing battery with the conventional operation strategy is not profitable, although it increases Self Sufficiency Ratio. The dynamic price load shifting strategy has similar performance with the conventional operation strategy because the electricity price variation is not large enough. The proposed hybrid operation strategy outperforms other investigated strategies. When the battery capacity is lower than 72 kW h, Self Sufficiency Ratio and Net Present Value increase simultaneously with the battery capacity.

Notes

This is the pre-peer reviewed version of the article, which has been published in final form at http://dx.doi.org/10.1016/j.enconman.2016.11.060. This article may be used for non-commercial purposes in accordance with Elsevier Terms and Conditions for Self-Archiving

Files

Battery sizing and rule-based operation of grid-connected_preprint.pdf

Files (12.8 MB)

Additional details

Funding

TILOS – Technology Innovation for the Local Scale, Optimum Integration of Battery Energy Storage 646529
European Commission