Work

Double-layer power optimisation and regulation method for hydro-photovoltaic hydrogen production ammonia synthesis coupling system

Year: 2025

Type: article

Abstract: To achieve a balance between economic performance and operational reliability in a coupled hydro–photovoltaic hydrogen-to-ammonia system, and to improve its operational flexibility, this paper proposes a double-layer power optimisation and control strategy based on model predictive control (MPC). In the upper-layer economic optimisation and scheduling module, a cost-benefit optimisation model is developed that considers internal revenue, operation and maintenance costs, and the start-up/shutdown costs of the hydrogen production units, aiming to maximise the overall economic benefits of system operation. In the lower-layer real-time control module, a real-time power optimisation method is introduced, which leverages the MPC framework to track multiple operational targets under dynamic constraints, using the economically optimised baseline power as a reference. The effectiveness of the proposed method is validated through a case study on a typical operating day. The results demonstrate that the proposed dual-layer control framework enables flexible and efficient operation of integrated electro-hydrogen-ammonia systems, offering valuable insights for the deep integration of renewable energy and the advancement of sustainable energy systems.

Source: Electric Power Systems Research

DOI: 10.1016/j.epsr.2025.111887

Authors: Yang Shihui, Zhengang LU, Zhao Liu, Guoliang Zhao, Haijun Liu

Institution: China Electric Power Research Institute

Language: English

Topic: Hybrid Renewable Energy Systems

Subfield: Energy Engineering and Power Technology

Field: Energy

Domain: Physical Sciences

SDGs: Affordable and clean energy, Industry, innovation and infrastructure, Climate action

Open Access status: hybrid

Estimated APC paid: $2,810