Adaptive control of a solid oxide fuel cell ultra-capacitor hybrid system

Das, Tuhin; Snyder, Steven

doi:10.1109/acc.2011.5991519

Cited by 16 publications

(16 citation statements)

References 23 publications

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“…Due to this feature, catalysts are not required for the operation of this type of FC. The performance of this type of FC is not so good due to the low conductivity of ceramic material electrolyte (Das and Snyder 2013).…”

Section: Solid Oxide Fuel Cellmentioning

confidence: 99%

“…A FC generates very low amount of voltage and current, so a FC stack is composed of several FCs connected in series/parallel and provides fairly large power at higher voltage and current levels. The models include several chemical phenomena present in the FC and hence are complex (Levi, Lamine, and Cavagnino Das and Snyder 2013). Some of the physical variables such as pressure and hydrogen input are constrained in a commercial FC module.…”

Section: Introductionmentioning

confidence: 99%

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Study and performances analysis of fuel cell assisted vector control variable speed drive system used for electric vehicles

Pachauri

Chauhan

2015

International Journal of Sustainable Energy

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This paper is a novel attempt to combine two important aspects of fuel cell (FC). First, it presents investigations on FC technology and its applications. A description of FC operating principles is followed by the comparative analysis of the present FC technologies together with the issues concerning various fuels. Second, this paper also proposes a model for the simulation and performances evaluation of a proton exchange membrane fuel cell (PEMFC) generation system. Furthermore, a MATLAB/Simulink-based dynamic model of PEMFC is developed and parameters of FC are so adjusted to emulate a commercially available PEMFC. The system results are obtained for the PEMFC-driven adjusted speed induction motor drive (ASIMD) system, normally used in electric vehicles and analysis is carried out for different operating conditions of FC and ASIMD system. The obtained results prove the validation of system concept and modelling. Nomenclatureamb ambient pressure (atm.) V anode anode volume (m 3 ) V cathode cathode volume (m 3 ) k anode anode flow constant (mols −1 atm −1 ) k cathode cathode flow constant (mols −1 atm −1 ) CF O 2 O 2 flow rate conversion factor PF O 2 O 2 purity factor m in reactant inlet flow rate (mols −1 ) m out reactant outlet flow rate (mols −1 ) m H 2 mass of hydrogen at the anode (kg/mol) R H 2 H 2 gas constant (J/kg K) m O 2 mass of oxygen at the cathode (kg/mol) R O 2 O 2 gas constant (J/kg K) m H 2 O mass of water at the cathode (kg/mol) q H 2 O molar flow rate of water (mols −1 ) P H 2 hydrogen flow pressure (atm.) P O 2 oxygen flow pressure (atm.) P H 2 O water flow pressure (atm.) J current density (A/cm 2 ) P d power density (W/cm 2 ) U f fuel utilisation factor R s stator resistance (ohm) L s stator inductance (H) R r rotor resistance (ohm) L r rotor inductance (H) L m mutual inductance (H) Greek symbols τ H + time constant (s) α H + relational parameters (cmA −3 ) σ membrane conductivity (ohm −1 )

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Section: Solid Oxide Fuel Cellmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study and performances analysis of fuel cell assisted vector control variable speed drive system used for electric vehicles

Pachauri

Chauhan

2015

International Journal of Sustainable Energy

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“…There are several types of FCs which are classified on the basis of their operating temperature ranges and type of electrolyte. In this study, Solid Oxide Fuel Cell (SOFC) is selected, because, it works at high temperatures (800 -1000 °C) [10]. But, the main weak point in SOFC is their poor dynamic response, gas starvation and load tracking delays [11].…”

Section: Astesj Issn: 2415-6698mentioning

confidence: 99%

Energy Management and Simulation of Photovoltaic/Hydrogen/Battery Hybrid Power System

Kamal¹,

Hassan²

2016

Adv. sci. technol. eng. syst. j.

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This manuscript focuses on a hybrid power system combining a solar photovoltaic array and energy storage system based on hydrogen technology (fuel cell, hydrogen tank and electrolyzer) and battery. The complete architecture is connected to the national grid through power converters to increase the continuity of power. The proposed hybrid power system is designed to work under classical-based energy management algorithm. According to the proposed algorithm, the PV has the priority in meeting the load demands. The hydrogen technology is utilized to ensure long-term energy balance. The battery is used as a backup and/or high power device to take care of the load following problems of hydrogen technology during transient. The dynamic performance of a hybrid power system is tested under different solar radiation, temperature and load conditions for the simulation of 24 Hrs. The effectiveness of the proposed system in terms of power sharing, grid stability, power quality and voltage regulation is verified by Matlab simulation results.

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“…Nevertheless, among issues such as mechanical integrity, thermal stresses, their load following capability is also a limiting factor hindering their widespread use [2]. This issue can be addressed by hybridization of SOFCs with a energy storage device [3]. But it necessitates the design of algorithms for transient control and stability in the presence of uncertainties.…”

Section: Introductionmentioning

confidence: 99%

“…The method introduces an on-line power management by a hierarchical hybrid controller between dual energy sources that consist of a battery bank and an SOFC. Additionally, an adaptive controller was proposed for a hybrid SOFC system in [3].…”

Section: Introductionmentioning

confidence: 99%

Decentralized control of a fuel cell ultra-capacitor hybrid network

Madani

Das

2013

2013 American Control Conference

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This paper addresses decentralized control of a simple hybrid power system consisting of a single fuel cell and an ultra-capacitor. This work develops separate controllers for the fuel cell and the ultra-capacitor, rather than a centralized controller. With a goal developing a control paradigm that is scalable to many energy resources connected to a network, the controllers are designed primarily to use locally sensed information. Explicit communication between controllers, such as exchange of locally sensed information, is absent. An energy conservation based approach, combined with a current regulation method developed by the authors in their earlier work [1], is used for transient control of the fuel cell. The control of stateof-charge of the ultra-capacitor is also principally governed by energy conservation, but implemented using two different approaches. One is based on dissipation, and the other is based on voltage modulation. The former is a conservative approach, while the latter is potentially more energy efficient. Simulation results are presented to demonstrate these concepts. Further research is ongoing to develop a detailed analytical base for this work.

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Adaptive control of a solid oxide fuel cell ultra-capacitor hybrid system

Cited by 16 publications

References 23 publications

Study and performances analysis of fuel cell assisted vector control variable speed drive system used for electric vehicles

Study and performances analysis of fuel cell assisted vector control variable speed drive system used for electric vehicles

Energy Management and Simulation of Photovoltaic/Hydrogen/Battery Hybrid Power System

Decentralized control of a fuel cell ultra-capacitor hybrid network

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