Dynamic Modeling Activities of Multi-Vector rSOCs BoP Coupled with RES Sources by Implementing Control Architecture

The workflow of FBK activities with Modelon Impact started from the modelling and the validation of the single component to the creation of the entire BOP model by implementing all the different control loops defined in an appropriate control strategy. The results of the simulation provide verification of the technical/thermodynamic behaviour and flexibility of a stack box of 70 cells for SOE system and 6 cells stack for a direct ammonia solid oxide fuel cell (DA-SOFC). Dynamic modelling allowed to evaluate the effect of the reagent inlet temperatures on the operation and hydrogen production/consumption in terms of yield as well as the transients between the different operative modes. The validation process generated polarization curves at different temperatures, aiming for a maximum relative error of less than 3%. 

Subsequently, with the full BoP model encompassing all system components, it became possible to analyze the behavior and functioning of the various control loops during transitions between the main operating modes, with particular attention to scalability aspects and monitoring the main Key Performance Indicators (KPIs).