Integrating renewable energy technologies into distributed energy systems maintaining system flexibility

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

Flexibility of the energy system plays a vital role when integrating non-dispatchable renewable energy technologies. However, flexibility of the energy system has been often discussed only focusing on the operation of the energy system. This study extends the flexibility concept considering both design and operation of the energy system. In order to achieve this, pseudo chronological scenarios used for stochastic optimization is used to define system flexibility. Multiple criterions are considered when evaluating the flexibility of the system and fuzzy logic is used to consider the ambiguity in the assessment process when localizing into a specific application. Subsequently, multi objective optimization is conducted to design a multi-energy hub considering net present value (NPV), system flexibility and renewable energy generation. GPU-accelerated computing is introduced to speed up the computing when evaluating the objective functions for number of scenarios. Results of the study show that poor system flexibility can leads to poor utilization of renewable energy generated. More importantly, penetration levels of non-dispatchable renewable energy technologies notably reduce by 20-30% when considering the flexibility of the energy system which guarantees robust operation.

Details

Authors
  • A. T.D. Perera
  • P. U. Wickramasinghe
  • Jean Louis Scartezzini
  • Vahid M. Nik
Organisations
External organisations
  • Swiss Federal Institute of Technology
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Energy Systems

Keywords

  • Electrical Hub, Flexibility, Stochastic Pareto optimization
Original languageEnglish
Title of host publicationProceedings of the 2018 5th International Symposium on Environment-Friendly Energies and Applications, EFEA 2018
EditorsEzio Santini, Stefano Di Gennaro, Claudio Bruzzese
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538655177
Publication statusPublished - 2019 Jan 21
Publication categoryResearch
Peer-reviewedYes
Event5th International Symposium on Environment-Friendly Energies and Applications, EFEA 2018 - Rome, Italy
Duration: 2018 Sep 242018 Sep 26

Conference

Conference5th International Symposium on Environment-Friendly Energies and Applications, EFEA 2018
CountryItaly
CityRome
Period2018/09/242018/09/26