Towards realization of an Energy Internet: Designing distributed energy systems using game-theoretic approach

Research output: Contribution to journalArticle

Abstract

Distributed energy systems play a significant role in the integration of renewable energy technologies. The Energy Internet links a fleet of distributed energy systems to each other and with the grid. Interactions between the distributed energy systems via information sharing could significantly enhance the efficiency of their real-time operation. However, privacy and security concerns hinder such interactions. A game-theoretic approach can help in this regard, and enable consideration of some of these factors when maintaining interactions between energy systems. Although a game-theoretic approach is used to understand energy systems' operation, such complex interactions between the energy systems are not considered at the early design phase, leading to many practical problems, and often leading to suboptimal designs. The present study introduces a game-theoretic approach that enables consideration of complex interactions among energy systems at the early design phase. Three different architectures are considered in the study, i.e., energy eystem prior to grid (ESPG), fully cooperative (FCS), and non-cooperative (NCS) scenarios, in which each distributed energy system is taken as an agent. A novel distributed optimization algorithm is developed for both FCS and NCS. The study reveals that FCS and NCS reduce the cost, respectively, by 30% and 15% compared to ESPG. In addition to cost reduction, there is a significant change in the energy system design when moving from FCS to NCS scenarios, clearly indicating the requirement for a scenario that lies between NCS and FCS. This will lead to reducing design costs while maintaining privacy.

Details

Authors
Organisations
External organisations
  • Swiss Federal Laboratories for Materials Science and Technology
  • Imperial College London
  • Chalmers University of Technology
  • Queensland University of Technology
  • Swiss Federal Institute of Technology
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Communication Systems
  • Energy Systems

Keywords

  • Distributed power generation, Game-theory, Multi-agent systems, Power system planning
Original languageEnglish
Article number116349
JournalApplied Energy
Volume283
Early online date2020 Dec 29
Publication statusPublished - 2021
Publication categoryResearch
Peer-reviewedYes