Integrated Modelling and Enhanced Utilization of Power-to-Ammonia for High Renewable Penetrated Multi-Energy Systems

Da Xu, Bin Zhou, Qiuwei Wu, Chi Yung Chung, Canbing Li, Sheng Huang, She Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

72 Citations (Scopus)

Abstract

This paper proposes an integrated model of power-to-ammonia (P2A) to exploit the inherent operational dispatchability of nitrogen-ammonia (N2-NH3) cycles for high-renewable multi-energy systems. In this model, the steady-state electrolytic processis mathematically formulated into a thermodynamic system based on thermo-electrochemical effects, and the long-term degradation process of P2A is transformed as the short-term degradation cost to characterize its cost-efficiency. Furthermore, the enhanced utilization of P2A is explored to form a renewable energy hubfor coupled multi-energy supplies, and a coupling matrix is formulated for the optimal synergies of electrical, ammonia and thermal energy carriers. An iterative solution approach is furtherdeveloped to schedule the hub-internal multi-energy conversion and storage devices for high-efficiency utilization of available hybrid solar-wind renewables. Numerical studies on a stand-alone microgrid over a 24-hour scheduling periods are presented to confirm the effectiveness and superiority of the proposed methodology over regularbattery and power-to-gas (P2G) storages on system operational economy and renewable energy accommodation.

Original languageEnglish
Article number9076319
Pages (from-to)4769-4780
Number of pages12
JournalIEEE Transactions on Power Systems
Volume35
Issue number6
DOIs
Publication statusPublished - Nov 2020
Externally publishedYes

Keywords

  • Energy hub
  • integrated energy system
  • microgrid
  • power-to-ammonia
  • renewable energy

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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