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Distributed peer-to-peer energy trading for residential fuel cell combined heat and power systems

International journal of electrical power & energy systems, 2021-02, Vol.125, p.106533, Article 106533 [Peer Reviewed Journal]

2020 Elsevier Ltd ;ISSN: 0142-0615 ;EISSN: 1879-3517 ;DOI: 10.1016/j.ijepes.2020.106533

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  • Title:
    Distributed peer-to-peer energy trading for residential fuel cell combined heat and power systems
  • Author: Nguyen, Dinh Hoa ; Ishihara, Tatsumi
  • Subjects: ADMM ; Combined heat and power ; Distributed optimization ; Fuel cell ; Multi-agent system ; Peer-to-peer energy systems
  • Is Part Of: International journal of electrical power & energy systems, 2021-02, Vol.125, p.106533, Article 106533
  • Description: [Display omitted] •Novel peer-to-peer electricity trading between FC-CHP systems.•Higher-efficiency operating points for fuel cells.•Increase of self-sufficiency and resilience for local energy systems.•Convexified optimization of gas-electricity optimal management of FC-CHP systems.•Distributed and parallel ADMM method for solving optimal peer-to-peer energy trading. This paper studies the optimal energy management in a group of dwellings having micro fuel cell combined heat and power systems. To increase the self-sufficiency and resilience of such local community, a P2P energy trading system between dwellings is proposed in which output powers from fuel cells working under their rated powers can be sold to those already reach their rated outputs but still lack powers. The arising optimization problem from this optimal P2P energy trading system is non-convex due to the nonlinear dependence of power and heat efficiencies on fuel cell output power. Therefore, a linearization method is proposed to convexify the problem. Consequently, a distributed ADMM approach is introduced to solve the convexified optimization problem in parallel at each dwelling. A case study for a group of six dwellings based on realistic electric consumption data is then presented to demonstrate the proposed approach performance and positive impacts of the P2P energy trading system. More specifically, the proposed distributed ADMM approach is reasonably fast in convergence and is scalable well with system size. In addition, P2P electricity trading system helps operate fuel cells at a higher efficiency and increase the self-sufficiency of such dwellings.
  • Publisher: Elsevier Ltd
  • Language: English
  • Identifier: ISSN: 0142-0615
    EISSN: 1879-3517
    DOI: 10.1016/j.ijepes.2020.106533
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