Details
| Original language | English |
|---|---|
| Journal | Journal of Fuel Cell Science and Technology |
| Volume | 9 |
| Issue number | 4 |
| Publication status | Published - 2012 |
| Externally published | Yes |
Abstract
Fuel cells generally become promising candidates for the electrical power supply in automotive and stationary applications. The power control of the fuel cell is one of the essential problems. In this paper, a power control concept with a master-slave structure for fuel cell systems is suggested. Within that concept, a DC/DC converter, several slave controllers, and a master controller are combined to achieve the control objectives. The DC/DC converter conditions the power and transfers it from the fuel cell to the load. The task of the slave controller is to maintain the controlled variables at their set points. The master controller has to select the set points for the slave controllers and limits the fuel cell output power, if the requested power exceeds the maximum power, which can be instantaneously produced by the controlled fuel cell system. The proposed control concept is demonstrated by simulations of a proton exchange membrane (PEM) fuel cell system taken from the literature. For that purpose, different controllers are designed based on model-free methods. For the master controller design, two alternative options are discussed: high efficiency tracking and fast power tracking. As shown in the simulation results, high efficiency tracking leads to higher system efficiency, however, an additional energy buffer is required. In contrast, no energy buffer is needed for the option of fast power tracking. However, the system efficiency is lower. The presented control concept is meaningful for systems with dynamic load requirements and can be easily applied to different fuel cell systems due to the model-free design approach.
Keywords
- master-slave structure, model-free, PEM fuel cell, power control
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Energy(all)
- Renewable Energy, Sustainability and the Environment
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
Sustainable Development Goals
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In: Journal of Fuel Cell Science and Technology, Vol. 9, No. 4, 2012.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Fuel cell power control based on a master-slave structure
T2 - A proton exchange membrane fuel cell case study
AU - Ji, Guangji
AU - Hanke-Rauschenbach, Richard
AU - Bornhöft, Astrid
AU - Zhou, Su
AU - Sundmacher, Kai
N1 - Copyright: Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2012
Y1 - 2012
N2 - Fuel cells generally become promising candidates for the electrical power supply in automotive and stationary applications. The power control of the fuel cell is one of the essential problems. In this paper, a power control concept with a master-slave structure for fuel cell systems is suggested. Within that concept, a DC/DC converter, several slave controllers, and a master controller are combined to achieve the control objectives. The DC/DC converter conditions the power and transfers it from the fuel cell to the load. The task of the slave controller is to maintain the controlled variables at their set points. The master controller has to select the set points for the slave controllers and limits the fuel cell output power, if the requested power exceeds the maximum power, which can be instantaneously produced by the controlled fuel cell system. The proposed control concept is demonstrated by simulations of a proton exchange membrane (PEM) fuel cell system taken from the literature. For that purpose, different controllers are designed based on model-free methods. For the master controller design, two alternative options are discussed: high efficiency tracking and fast power tracking. As shown in the simulation results, high efficiency tracking leads to higher system efficiency, however, an additional energy buffer is required. In contrast, no energy buffer is needed for the option of fast power tracking. However, the system efficiency is lower. The presented control concept is meaningful for systems with dynamic load requirements and can be easily applied to different fuel cell systems due to the model-free design approach.
AB - Fuel cells generally become promising candidates for the electrical power supply in automotive and stationary applications. The power control of the fuel cell is one of the essential problems. In this paper, a power control concept with a master-slave structure for fuel cell systems is suggested. Within that concept, a DC/DC converter, several slave controllers, and a master controller are combined to achieve the control objectives. The DC/DC converter conditions the power and transfers it from the fuel cell to the load. The task of the slave controller is to maintain the controlled variables at their set points. The master controller has to select the set points for the slave controllers and limits the fuel cell output power, if the requested power exceeds the maximum power, which can be instantaneously produced by the controlled fuel cell system. The proposed control concept is demonstrated by simulations of a proton exchange membrane (PEM) fuel cell system taken from the literature. For that purpose, different controllers are designed based on model-free methods. For the master controller design, two alternative options are discussed: high efficiency tracking and fast power tracking. As shown in the simulation results, high efficiency tracking leads to higher system efficiency, however, an additional energy buffer is required. In contrast, no energy buffer is needed for the option of fast power tracking. However, the system efficiency is lower. The presented control concept is meaningful for systems with dynamic load requirements and can be easily applied to different fuel cell systems due to the model-free design approach.
KW - master-slave structure
KW - model-free
KW - PEM fuel cell
KW - power control
KW - master-slave structure
KW - model-free
KW - PEM fuel cell
KW - power control
UR - http://www.scopus.com/inward/record.url?scp=84863450044&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:84863450044
VL - 9
JO - Journal of Fuel Cell Science and Technology
JF - Journal of Fuel Cell Science and Technology
SN - 1550-624X
IS - 4
ER -