(Invited) Total Harmonic Distortion for PEM Fuel Cell

Zhang, Xueyuan; Moosbauer, Dominik; Kojevnikov, Alexander; Yaffe, Max

doi:10.1149/07538.0017ecst

Cited by 5 publications

(5 citation statements)

References 10 publications

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“…THDA‐based monitoring is attractive due to its simplicity and transparency, while its main drawbacks are the requirement for an invasive excitation signal and ‐ for the time being ‐ more or less steady‐state operation of the system. In the fuel cell domain utilization of the method has been investigated for more than a decade and is reiterated regularly , . Ramschak et al.…”

Section: Introductionmentioning

confidence: 99%

“…THDA-based monitoring is attractive due to its simplicity and transparency, while its main drawbacks are the requirement for an invasive excitation signal and -for the time being -more or less steadystate operation of the system. In the fuel cell domain utilization of the method has been investigated for more than a decade and is reiterated regularly [1,2]. Ramschak et al first verified the use of THDA for fuel cell systems and demonstrated its use for detecting air starvation conditions for a 1 kW PEM -[ * ] Corresponding author, antti.pohjoranta@vtt.fi stack and a 50-cell SOFC stack [1].…”

Section: Introductionmentioning

confidence: 99%

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Online Total Harmonic Distortion Analysis for Solid Oxide Fuel Cell Stack Monitoring in System Applications

2018

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The applicability of online total harmonic distortion analysis (THDA) for the operation and monitoring of solid oxide fuel cell (SOFC) power systems is investigated by experiments as well as analysis of the algorithm, with a focus on the relationship between stack fuel utilization rate and the corresponding THD index. An online THDA algorithm is implemented in a programmable logic controller (PLC) and operated with a 6 kW SOFC power system demonstration unit. Laboratory experiments on the solid oxide fuel cell technology are carried out to determine key parameters for the algorithm. The embedded implementation of the THDA algorithm, including several modifications to reduce its computational load, and its parameterization is analyzed and the program code is given in the Appendix. The experimental results verify that THDA can be a reliable means for quantitatively monitoring the fuel utilization rate experienced by the stack and that the algorithm is simple to implement on an embedded controller.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Online Total Harmonic Distortion Analysis for Solid Oxide Fuel Cell Stack Monitoring in System Applications

2018

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“…In THD, the alternating time-domain response signals are analyzed in the frequency-domain to search for the existence of high-order harmonics along with the fundamental response, which is assigned as distortions in the data [10,11]. To obtain the EIS data, the excitation parameters are adjusted while monitoring the level of the harmonics to fall below noise levels [12].…”

Section: Introductionmentioning

confidence: 99%

Non-linear harmonics in EIS of batteries with lithium anodes: Proper controls and analysis

Zabara

Katırcı

Ülgüt

2022

Electrochimica Acta

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“…THD may be used to track signal to noise ratio for linear measurements. Zhang and Moosbauer 14 reported on the application of THD to corrosion, and Mao et al 15 and Zhang et al 16 applied THD to PEM fuel cells.…”

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confidence: 99%

Comparison of Approaches for Assessing Linearity of Impedance Measurements

Min Goh,

Eluagu,

Babauta

et al. 2024

J. Electrochem. Soc.

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Electrochemical impedance spectroscopy experiments are inherently nonlinear for systems affected by faradaic reactions. The methods used to determine whether an experiment is sufficiently linear include observation of current as a function of potential, known as Lissajous plots, measurement of total harmonic distortion, and post-experiment assessment of consistency with the Kramers-Kronig relations. An experimental approach is employed to compare sensitivity of these methods to determination of nonlinear response in electrochemical impedance measurements. The Lissajous figures showed linear behavior for a total harmonic distortion equivalent to 1 percent of the fundamental; whereas, the measurement model analysis revealed nonlinear behavior only for larger perturbation amplitudes.

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(Invited) Total Harmonic Distortion for PEM Fuel Cell

Cited by 5 publications

References 10 publications

Online Total Harmonic Distortion Analysis for Solid Oxide Fuel Cell Stack Monitoring in System Applications

Online Total Harmonic Distortion Analysis for Solid Oxide Fuel Cell Stack Monitoring in System Applications

Non-linear harmonics in EIS of batteries with lithium anodes: Proper controls and analysis

Comparison of Approaches for Assessing Linearity of Impedance Measurements

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