Operation Planning of Off-grid Wind Solar Hydrogen Ammonia System Considering Abandonment Rate and Ammonia Load Stability

Jianyu Yu¹, Huisheng Wang², Shiqi Yin¹, Hengli Quan², Biao Li², Xianhai Liu¹, Guohui Zhang¹, Zaijiang Lin², Wang Lu², Qingzhu Wan³ and Tianyi Zhang³*
¹JILIN ELECTRIC POWER CO, LTD, China
²State Nuclear Electric Power Planning Design & Research Institute CO., LTD, China
³North China University of Technology, China
*Corresponding Author: Tianyi Zhang, North China University of Technology, China.

Published: November 05, 2024

View Pdf

Abstract  

As an effective way of large-scale consumption of renewable energy for power generation, off grid hydrogen production and ammonia synthesis systems face multiple challenges in terms of stability and economic operation. The key is how to reasonably allocate the number of electrolytic cells and ammonia load to ensure stable operation of the system throughout the year. In response to these technical difficulties, this article constructs an 8760 hours renewable energy electric hydrogen synthesis ammonia production simulation model that comprehensively considers the abandonment rate and load stability. A reasonable operation planning method for the number of electrolytic cell startups and ammonia load has been proposed. On the premise of ensuring compliance with system constraints, the model can dynamically adjust the number of start-up units, optimize ammonia load, and achieve efficient utilization of wind and solar resources. To verify the actual effectiveness of this method, this article selects a specific case study from Da'an District, Jilin Province for analysis. The results indicate that the planning method proposed in this article not only successfully simulated the production process of ammonia through electric hydrogen synthesis based on 8760 hours of off grid renewable energy, but also significantly improved the rationality of the off-grid system.

Keywords: Renewable energy; Off-grid system; Electric hydrogen production; Synthetic ammonia

.