Optimal sizing of stand-alone photovoltaic system by minimizing the loss of power supply probability

Nur Izzati Abdul Aziz, Shahril Irwan Sulaiman, Sulaiman Shaari, Ismail Musirin, Kamaruzzaman Sopian

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

This paper presents Firefly Algorithm-based Sizing Algorithm (FASA) for sizing optimization of a Stand-Alone Photovoltaic (SAPV) system. Firefly Algorithm (FA) was used to optimally select the model of each system component such that a technical performance indicator is consequently optimized. Prior to implementation of FASA, an Iterative-based Sizing Algorithms known as ISA had been developed to determine the optimal solutions which were used as benchmark for FASA. Although ISA was capable in determining the optimal design solutions when there are numerous models for each system component being considered, the computation time of ISA can be very long as ISA tested every possible combination of PV module, battery, charge controller and inverter during sizing process. Therefore, FASA was introduced to accelerate the sizing optimization for SAPV system. FA was incorporated into sizing algorithm with the technical performance indicator was set to optimize the Loss of Power Supply Probability (LPSP). Besides that, two design cases of PV-battery system, i.e. system with standard charge controller denoted as Case 1 and system with MPPT-based charge controller denoted as Case 2 were investigated. The results showed that FASA had successfully found the optimal LPSP in all design cases. In addition, sizing algorithm with FA was also discovered to outperform sizing algorithm with selected computational intelligence in producing the lowest computation time in the sizing optimization.

Original languageEnglish
Pages (from-to)220-228
Number of pages9
JournalSolar Energy
Volume150
DOIs
Publication statusPublished - 1 Jul 2017

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Controllers
Artificial intelligence
Optimal design
Maximum power point trackers

Keywords

  • Firefly algorithm (FA)
  • Loss of power supply probability (LPSP)
  • Optimization
  • Sizing
  • Stand-alone photovoltaic (SAPV)

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

Optimal sizing of stand-alone photovoltaic system by minimizing the loss of power supply probability. / Abdul Aziz, Nur Izzati; Sulaiman, Shahril Irwan; Shaari, Sulaiman; Musirin, Ismail; Sopian, Kamaruzzaman.

In: Solar Energy, Vol. 150, 01.07.2017, p. 220-228.

Research output: Contribution to journalArticle

Abdul Aziz, Nur Izzati ; Sulaiman, Shahril Irwan ; Shaari, Sulaiman ; Musirin, Ismail ; Sopian, Kamaruzzaman. / Optimal sizing of stand-alone photovoltaic system by minimizing the loss of power supply probability. In: Solar Energy. 2017 ; Vol. 150. pp. 220-228.
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