Configuration of a Fuel Cell system. Clues to choose between a modular or single stack-based design

Vivas, F.J.; Heras, A. De las; Segura, F.; Andújar, José Manuel

doi:10.1109/iecon.2016.7793574

Cited by 2 publications

(1 citation statement)

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“…Using a modular architecture to implement the FC system as a connection of independent stacks (multi-stack) aimed to meet with the power demand (with one, several, or all stacks running) while taking into account the level of stacks degradation and O&M costs. This allowed the microgrid energy management system (EMS) to control the multi-stack FC system according to technical and economic criteria, leading to optimized behavior, reducing the degradation, preserving the lifespan, and minimizing the hydrogen consumption [24]. As has been commented in Section 1, one of the options for improving FC effectiveness, extending its lifespan, and reducing costs, were to use such stacks in a modular architecture to develop scalable power FC systems as needed [23].…”

Section: Methodsmentioning

confidence: 99%

Integration of a Multi-Stack Fuel Cell System in Microgrids: A Solution Based on Model Predictive Control

et al. 2020

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This paper proposes a multi-objective model predictive control (MPC) designed for the power management of a multi-stack fuel cell (FC) system integrated into a renewable sources-based microgrid. The main advantage of MPC is the fact that it allows the current timeslot to be optimized while taking future timeslots into account. The multi-objective function solves the problem related to the power dispatch at time that includes criteria to reduce the multi-stack FC degradation, operating and maintenance costs, as well as hydrogen consumption. Regarding the scientific literature, the novelty of this paper lies in the proposal of a generalized MPC controller for a multi-stack FC that can be used independently of the number of stacks that make it up. Although all the stacks that make up the modular FC system are identical, their levels of degradation, in general, will not be. Thus, over time, each stack can present a different behavior. Therefore, the power control strategy cannot be based on an equal distribution according to the nominal power of each stack. On the contrary, the control algorithm should take advantage of the characteristics of the multi-stack FC concept, distributing operation across all the stacks regarding their capacity to produce power/energy, and optimizing the overall performance.

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Section: Methodsmentioning

confidence: 99%