Control-Oriented Nonlinear Modeling and Temperature Control for Solid Oxide Fuel Cell

Huo, Haibo; Wu, Yanxiang; Liu, Yuqing; Gan, Shihong; Kuang, Xinghong

doi:10.1115/1.3211101

Cited by 12 publications

(7 citation statements)

References 15 publications

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“…Feedback linearization is conveniently classified into categories, that is, input–output feedback linearization and state-space linearization. Input–output feedback linearization technology provides convenience for further design of linearization control algorithm by transforming the nonlinear system model (in whole or part) into a linear system. , The standard input and output feedback linearization technology is described as follows.…”

Section: Temperature Gradient Control Of the Sofcmentioning

confidence: 99%

Temperature Gradient Control of the Solid Oxide Fuel Cell under Variable Load

Huo

Cui

et al. 2021

ACS Omega

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Nowadays, the temperature gradient is considered as one of the most important parameters which impact the performance of the solid oxide fuel cell (SOFC). In this paper, a control strategy based on an input−output feedback linearization technology is derived for controlling the maximum temperature gradient within the anode fuel flow channel at the desired value. For the controller design, the temperature dynamic model is proposed and simplified to a controloriented multi-input and multioutput nonlinear dynamic model. Then, this paper presents an input−output feedback linearization controller to realize the control objective by adjusting the cathode input air flow. Finally, the simulation results are given to demonstrate the accuracy of the proposed model in reflecting the temperature dynamic characteristics. Moreover, the compound controller is added for simulation as a comparison, which shows that the proposed controller is equipped with better effectiveness and efficiency in the presence of external disturbances.

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Section: Temperature Gradient Control Of the Sofcmentioning

confidence: 99%

Temperature Gradient Control of the Solid Oxide Fuel Cell under Variable Load

Huo

Cui

et al. 2021

ACS Omega

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“…The blower power command is thus subjected to a magnitude limit m and the actuator commands would not exceed this bound. Therefore, for the second plant input (blower power), we require 0 u p2 u lim (9) with u lim as a known positive constant, and u p2 to be the blower power. The inputs to the plant u p are thus modeled as…”

Section: Blower Power Enforced Saturationmentioning

confidence: 99%

“…To meet the demands of developing control strategies, in Ref. [9], a control-oriented multi-input multioutput (MIMO) nonlinear thermal model of the SOFC is developed and a temperature controller is proposed. In Ref.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Power Generation in SOFCs Using Artificial Limits on Actuator Control Signals

Reineh

Jabbari

2018

Journal of Electrochemical Energy Conversion and Storage

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In this paper, we study a solid oxide fuel cell (SOFC) controlled by a multi-input multi-output (MIMO) compensator, which uses the blower/fan power and cathode inlet temperature as actuators. The usable power of the fuel cell (FC) is maximized by limiting the air flow rate deliberately when an increase in power is demanded. Possible rate bounds on the cathode inlet temperature are also modeled. These bounds could represent the physical limitations (due to slow dynamics of heat exchangers) and/or a control concept for accommodating the power saving objective. Applying proper limits to the amplitude and rate of the actuator signals, and incorporating antiwindup (AW) techniques, can raise the net power of the FC by 16% with negligible effects on the spatial temperature profile.

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“…In this work control efforts were not taken into account (parasitic power consumption of the actuators was, therefore, not considered) and the controller designed was tested only in simulation, without experimental validation. Huo et al [32] developed a temperature controller for a SOFC stack, a variable structure controller (VSC). Control design was performed using a linearized model valid around an operating point.…”

Section: Introductionmentioning

confidence: 99%

Design and Experimental Validation of the Temperature Control of a PEMFC Stack by Applying Multiobjective Optimization

et al. 2020

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The current environmental challenges require the implementation of environmentally friendly energy production systems. In this context, proton exchange membrane fuel cell stacks (PEMFC) represent, due to their high electrical efficiency and their low level of CO 2 emissions, a promising alternative technology. However, there are still many technical aspects that need to be improved before they become a commercial reality. One of them is the temperature control of the stack, since its electrical efficiency and its lifetime depend on the performance of this control. In this work, we design a multiloop PID control of the temperature of a PEMFC stack and validate it experimentally. The stack is the prime mover of a micro combined heat and power system (micro-CHP). For this task, we use a previously developed nonlinear model and apply a multiobjective optimization methodology. To assess its performance, the PID control is compared to a second PID control designed with a linearized model. The results show, on the one hand, the importance of having a nonlinear model valid in a wide operation range for the correct design of the temperature control of a PEMFC stack and, on the other hand, the advantages of applying a multiobjective optimization methodology to this problem.

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Control-Oriented Nonlinear Modeling and Temperature Control for Solid Oxide Fuel Cell

Cited by 12 publications

References 15 publications

Temperature Gradient Control of the Solid Oxide Fuel Cell under Variable Load

Temperature Gradient Control of the Solid Oxide Fuel Cell under Variable Load

Enhanced Power Generation in SOFCs Using Artificial Limits on Actuator Control Signals

Design and Experimental Validation of the Temperature Control of a PEMFC Stack by Applying Multiobjective Optimization

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