WO2020082102A1 - Procédé pour utiliser un indicateur - Google Patents

Procédé pour utiliser un indicateur Download PDF

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Publication number
WO2020082102A1
WO2020082102A1 PCT/AT2019/060354 AT2019060354W WO2020082102A1 WO 2020082102 A1 WO2020082102 A1 WO 2020082102A1 AT 2019060354 W AT2019060354 W AT 2019060354W WO 2020082102 A1 WO2020082102 A1 WO 2020082102A1
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WO
WIPO (PCT)
Prior art keywords
parameter
indicator
frequencies
selection
spectrum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/AT2019/060354
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German (de)
English (en)
Inventor
Stefan POFAHL
Lukas WIELANDNER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AVL List GmbH
Original Assignee
AVL List GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AVL List GmbH filed Critical AVL List GmbH
Priority to DE112019005344.2T priority Critical patent/DE112019005344A5/de
Publication of WO2020082102A1 publication Critical patent/WO2020082102A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/389—Measuring internal impedance, internal conductance or related variables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/392—Determining battery ageing or deterioration, e.g. state of health
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/04537—Electric variables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/04537—Electric variables
    • H01M8/04544—Voltage
    • H01M8/04559—Voltage of fuel cell stacks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/04537—Electric variables
    • H01M8/04574—Current
    • H01M8/04589—Current of fuel cell stacks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04701—Temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04992—Processes for controlling fuel cells or fuel cell systems characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • the present invention relates to a method for providing an indicator.
  • the invention further relates to a device for providing an indicator.
  • electrochemical cells are monitored by means of an excitation.
  • the effects of the excitation can be recorded for this monitoring, and certain characteristics of this effect can serve as an indicator of the operating state.
  • the excitation was carried out with a sinusoidal electrical signal which is impressed on the cell at a fixed frequency.
  • the response signal can then be measured and evaluated at the same frequency or its harmonic frequency. In other words, only a few become
  • the object of the present invention is that described above
  • the object of the present invention to provide an improved indicator for monitoring the parameter.
  • the object is achieved in particular by a method for providing an indicator which is specific for at least one parameter of a system and / or is used for monitoring the parameter.
  • the system can be an electrochemical system and / or a system in the form of at least one electrochemical cell and preferably at least one fuel cell.
  • Such an indicator can be used to monitor the parameter, preferably by evaluating overall harmonic distortion (also: total harmony distortion, or THD for short).
  • the parameter is, for example, an operating state or a process in the system.
  • the parameter can vary, i.e. change during the operation of the system. The change can be time-dependent (such as aging or the like of the system) or be caused by other influences (such as a temperature or the like of the system).
  • an electrical signal (an excitation signal such as a
  • Response signal (such as a resonance voltage) are recorded as a system response in the system. Characteristics of the response signal can be used as an indicator for the parameter. For example, a sinusoidal alternating current in a limited frequency spectrum or a non-sinusoidal excitation, for example in the form of a sawtooth-shaped electrical signal, is used for the excitation. Signals present in the system, such as switching a valve or the like, can also be used as excitation. It is also possible that distorted sinusoidal or non-sinusoidal signals are used as excitation. The complexity of the resulting frequency spectrum of the
  • an indicator can be provided which can possibly also enable the use of such complex response signals.
  • the following steps to provide the indicator to be carried out, preferably in succession in the order specified or in any order, individual steps also being able to be carried out repeatedly:
  • an indicator the indicator being determined taking into account the varied parameter and the at least one overall spectrum, in particular selectively,
  • the indicator is advantageously determined selectively, preferably selectively with respect to the
  • Total spectrum can be selected for the indicator. This can be done, for example, by an iterative optimization process, in which the frequencies of the entire spectrum are examined with regard to their specificity for the varied parameter. In contrast to conventional methods, the frequencies are not specified as an indicator from the outset, but are determined taking into account the entire spectrum. In this way, in principle all (or at least the predominant number) of the frequencies of the entire spectrum can potentially serve as an indicator.
  • the quality criterion is advantageously a suitability of the indicator and / or of frequencies of the entire spectrum, a reference to a value of the Deliver parameters.
  • the quality criterion z. B. a monotone
  • the system response can e.g. B. can be determined by measuring a response signal as an electrical signal in the system during the excitation.
  • the suggestion is e.g. B. applying an electrical voltage as an excitation signal to the system.
  • the total spectrum is, for example, the entire frequency spectrum of the response signal, which is determined, for example, by means of a (digital) Fourier transformation from the response signal.
  • a frequency range of the entire spectrum can be in the range from 0.1 Flz to 10 kHz.
  • the provision of the at least one entire spectrum is carried out by performing a frequency analysis such as a Fourier analysis on an electrical signal measured on the system by a data processing system or the like.
  • the measured signal can be advantageous for this
  • the response signal which can be measured in the excitation on the system.
  • the response signal can be the time profile of an electrical voltage or a current at connections of the system.
  • the response signal can also be determined as a system response by known methods, for example as a step response when the system is excited by a step function.
  • the excitation of the system can further z. B. by applying an excitation signal - such as an electrical voltage or a sinusoidal alternating current or some other influence on the system. If the total spectrum is determined from the response signal, it is advantageously specific for the system response to the excitation of the system and is therefore suitable for characterizing the system. It can also be a particular criterion in the provision of the overall spectrum that the broadest possible spectrum is determined as the overall spectrum in order to increase the information content for characterizing the system.
  • Parameters are determined.
  • a change in the overall spectrum can occur with the change in the parameter
  • the parameter is, for example, an operating state or a process in the system which changes (for example over time).
  • a simple example of the parameter is the age of the system. In this case, the parameter does not have to be actively set to be varied, but then changes automatically over time. If the parameter in this advantageous embodiment thus varies during the operation of the system, the overall spectra determined for the different variations of the parameters also change.
  • an indicator can be used in particular according to the invention.
  • the overall spectra are for the parameter z. B. created in the form of frequency spectra (such as transfer functions from the impulse or step response), in particular for different variations of the parameters, so z. B. at different times.
  • Total spectrum can be in a frequency range from 0.1 Hz to 10 kHz
  • the parameters can be varied in such a way that the entire spectrum is determined at fixed time intervals, if necessary automatically by an electrical measuring device. For each of these investigations, the indicator can be generated and finally provided
  • the entire spectrum is selected - that is, selected.
  • the provision of the respective overall spectrum and the generation of the indicator can be
  • the frequencies of the previously provided total spectrum are selected to generate the indicator.
  • Which of the frequencies are selected in each of these iterations can preferably be determined randomly (for example by a random generator) and / or can be specified by an optimization algorithm.
  • the optimization algorithm optimizes the selection of the frequencies, for example, which is the largest
  • the optimization process can, if necessary, manually enter the specificity as a quality criterion.
  • the optimization algorithm can therefore be an iterative numerical one
  • the frequencies finally selected can preferably serve to provide the generated indicator.
  • the indicator is, for example, the specification of which of the frequencies are selected, and thus comprises a (digital) list of frequencies from the entire spectrum.
  • the indicator can advantageously be determined, taking into account the varied parameter and the at least one overall spectrum, in particular selectively, that only specific frequencies are selected from the overall spectra determined (at fixed time intervals) for different variations of the parameters.
  • the number of frequencies used for this lies e.g. B. in the range of 1% up to 50%, preferably 5% to 25% of the available frequencies (sampling points) of the entire spectrum (if the entire spectrum is available with discrete frequencies).
  • the selective determination of the indicator from the entire spectrum can take place in particular under the criterion that only those frequencies are selected for the indicator that can describe the parameter with particularly high specificity.
  • the generated indicator it is thus possible for the generated indicator to be made available on the basis of the quality criterion in comparison with the varied parameter in that only those
  • Frequencies are selected which also show the variation of the parameter.
  • a comparison with the varied parameter z. B. in that the course of the parameter is compared in terms of value with the course of the selected frequencies.
  • Quality criterion can e.g. B. in the case of aging, the parameter can be defined by selecting only the frequencies at which the amplitude also increases (or decreases) over time (as with the parameter). Generally speaking, the quality criterion can preferably match the course of the parameter with the course of the amplitudes of the selected ones
  • the match can e.g. B. be evaluated by a threshold value, so that, for example, with at least 80% agreement, the quality criterion is considered fulfilled and thus the frequency is selected for the indicator.
  • the indicator with the correspondingly selected frequencies i.e. a frequency combination
  • electrochemical cell In the operation of the electrochemical cell, it is then not necessary to evaluate the entire entire spectrum in order to determine the aging, but only the indicator, ie the limited number of frequencies. In this way, different indicators can preferably also be determined for different parameters (aging, temperature, or the like).
  • a stochastic optimization method can in particular be understood to be a method which uses random variables in order to find the best solution.
  • such algorithms can also use mathematical models, such as the evolutionaries Algorithms.
  • this can also be understood to mean the use of an “evolution strategy” or genetic algorithms.
  • the indicator is determined from frequencies of the at least one overall spectrum, which are changed dynamically, and in particular randomly and / or iteratively, during generation. In this way, different frequencies of the
  • the frequency combinations can be a list of the different frequencies, the amplitudes of which are evaluated for the indicator or for monitoring the parameter.
  • the initial selection can serve to reduce the initial frequency components of the entire spectrum to those frequencies which are above one of their own noise Detection of the measuring device used and / or additionally show monotonous behavior via the monotonically varying parameters. These frequency components of this reduced spectrum can then be combined randomly in order to obtain the initially selected frequency combination. It can also be provided that the amplitudes of the frequencies of this initially selected frequency combination are then added up for each spectrum of a parameter point.
  • the background to this is that an overall spectrum can have been recorded for each variation of the parameter (ie each parameter point).
  • a quality criterion may be considered fulfilled and / or quality characteristics of this frequency combination can be buffered.
  • This frequency combination can then be used as a starting point (or according to an evolution strategy as a "parent").
  • These parents are then possibly reproduced in order to provide the multiple frequency combinations from the selection frequencies in a first iteration when generating.
  • the parents can pass their genes (i.e. the frequencies) at random to a number of predefined children, so that the combined frequencies of the children are partially selected from the previously selected frequency combination (of the parents). In order not to get stuck in any local optimum, the principle of mutation can also be used.
  • Each frequency in the children's frequency spectrum is additionally pre-defined
  • the combined frequencies of the frequency combinations may differ from those previously selected
  • the quality characteristic can now be determined and / or for each of these children
  • this quality feature depends, for example, on a signal strength of the amplitudes of the frequencies of the respective frequency combination and / or on a deviation of the frequency combination from the varying parameters with respect to one
  • the respective frequency combination is preferably designed as a linear combination and / or as a weighted summation of the amplitudes of the combined frequencies of the respective frequency combination.
  • An individual signal on a frequency can also be formed as a quotient.
  • a linear combination of impedances at different frequencies can be used to determine an indicator.
  • the quotient can be formed from quantities of the same type, as is the case for the distortion factor (THD), or from quantities of different types, as is the case with impedance or power. If one speaks in the following of the summing up of the amplitudes, then - for reasons of simplification - is to be understood as the linear combination of amplitudes or quotients of measured variables at different frequencies.
  • the provision of the at least one overall spectrum is carried out by acquiring different overall spectra and associated parameter points for different values of the parameter.
  • the parameter can be varied in the operation of the system for test measurements, e.g. B. in the event of aging as a parameter, the system can be operated for a longer period of time, and repeated measurements can be carried out during this operation. Each of these measurements is then one
  • Assigned parameter point at the time of measurement e.g. B. a time and / or value for aging.
  • a course of measured values of the measurements can oppose a course of parameter points.
  • Measurements themselves are e.g. B. each measurement of a response signal, so that the total spectra of the response signals are also assigned to the parameter points. Furthermore, the following steps can optionally be carried out before generation:
  • Frequency combination on the basis of the comparison for example as the value of the respective deviation
  • the generation of the selection can comprise the following steps:
  • Parameter points based on the quality criterion e.g. B. with regard to a deviation and / or monotony to the parameter points, - determining a respective quality characteristic on the basis of the comparison, for example as a value of the respective deviation,
  • Frequency combination based on a comparison of the quality characteristics with the quality characteristic of the previously selected frequency combination, preferably if one of the last quality characteristics determined is higher than the quality characteristic of the frequency combination previously selected (in the previous iteration), the selected frequency combination possibly after the last iteration
  • Providing the generated indicator can be used. This has the The advantage that an indicator specific to the parameter can be determined very reliably.
  • the selection frequencies are formed in accordance with the selection criterion from frequencies which, in particular as the quality criterion, over a noise component of the
  • the generation comprises several optimization steps, in each of which the indicator is iteratively adapted and evaluated on the basis of different frequencies of the entire spectrum and selected for the subsequent optimization step on the basis of the evaluation.
  • the evaluation is in particular an evaluation in which a course of the overall spectra is compared with a course of the parameter, preferably using the
  • the indicator is at least partially stochastically determined, preferably by means of a locally stochastic optimization method, preferably by means of a
  • the overall spectrum is taken into account by taking a predominant part of the total spectrum for the indicator and / or using it for generation.
  • the specificity of the indicator can be increased by using several frequencies of the entire spectrum.
  • the following step is provided: Detecting the system responses by performing the particularly non-sinusoidal excitation repeatedly while varying the
  • the variation parameter preferably being taken into account by comparing a course of the overall spectra from the recorded system responses with a course of the associated parameter values (parameter points).
  • a particularly robust indicator can be determined in this way.
  • a further advantage can be achieved within the scope of the invention if the generated indicator is provided in order to monitor the parameter in the system or in a further system on the basis of the indicator, the parameter preferably being an operating state of the system, in particular a temperature, or a process of the system, in particular aging, is carried out.
  • the indicator for evaluating the parameter can be designed using the system response, in particular as an electrical signal detected by the system during monitoring. In this way, the indicator can be used to monitor and / or determine the parameter in a system, without the need to carry out complex other measurements of the parameter.
  • the invention also relates to a device for providing an indicator.
  • the device can e.g. B. as a data processing system or as a computer program, in particular Com computer program product, or as an electronic device.
  • the device can also be designed as a computer-readable medium, such as a data carrier, with the computer program.
  • the indicator is specific for at least one parameter of a system, in particular in the form of at least one electrochemical cell.
  • the device according to the invention can the following modules, for. B. in the form of software and / or hardware modules, have: a provisioning module for providing at least one
  • Total spectrum which is specific for a system response to an excitation of the system with a varied parameter of the system
  • an indicator module for generating an indicator which is designed to selectively determine the indicator taking into account the varied parameter and the at least one overall spectrum
  • the device according to the invention thus brings with it the same advantages as have been described in detail with reference to a method according to the invention.
  • the device can be suitable for carrying out a method according to the invention.
  • the device has at least one processing means which is designed to cause the device to carry out the steps of a method according to the invention.
  • the processing agent may e.g. B. a
  • the processing means (as a computer program) can, for example, cause the steps to be carried out.
  • Figure 1 is a schematic representation for the visualization of a
  • FIG. 2 shows a schematic illustration of a device according to the invention
  • Figure 3 is a schematic representation for the visualization of a
  • a system 1 for visualizing a method 100 according to the invention is shown schematically in FIG. It is shown here that first an excitation 212 can be carried out in the system 1 in order to determine a system response 214. A total spectrum 230 can then be calculated from this system response 214, such as an electrical signal. In addition, a response signal during the excitation 212 in the system 1 can be determined by a measuring device and, for example, converted into a digital signal by an analog-digital converter. The entire spectrum 230 can then be formed from this digital signal by means of a digital Fourier transformation, such as, for example, a Fast Fourier transformation. Furthermore, it is possible in a further step that
  • Selection frequencies 232 can be selected from the total spectrum 230, which thus correspond to a subset of the total spectrum 230.
  • Selection frequencies 232 need not necessarily be adjacent frequencies, so that a list of different frequencies from the entire spectrum 230 can also be considered as selection frequencies 232.
  • An indicator 200 can then be determined on the basis of different frequency combinations 234, taking into account the varied parameter 210 of the system 1 and the overall spectrum 230. For this purpose, parameter 210 is varied in order to determine different system responses 214 for different suggestions 212.
  • a device 10 can be used, for example. This is shown schematically in FIG. 2 and, in addition to a preparation module 20, also includes an indicator module 30 and a result module 40. A processing means 11 is also optionally provided.
  • a method 100 according to the invention for providing an indicator 200 is schematically visualized in FIG. 3, the indicator 200 being specific for at least one parameter 210 of a system 1 in the form of at least one electrochemical cell 1.
  • a first method step 101 at least one total spectrum 230 is prepared, each for one
  • System 210 parameter 210 is specific.
  • a second Method step 102 generates an indicator 200, the indicator 200 being selectively determined taking into account the varied parameter 210 and the at least one overall spectrum 230.
  • the generated indicator 200 is made available on the basis of a quality criterion in comparison with the varied parameter 210.

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  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

La présente invention concerne un procédé (100) pour utiliser un indicateur (200), qui est spécifique pour au moins un paramètre (210) d'un système (1) sous forme d'au moins une cellule électrochimique (1), les étapes suivantes étant effectuées : utiliser au moins un spectre global (230), qui est spécifique à chaque fois à une réponse du système (214) à une excitation (210) du système (1) pour un paramètre qui varie (210) du système (1), générer un indicateur (200), l'indicateur (200) étant déterminé sélectivement compte tenu du paramètre qui varie (210) et dudit au moins un spectre global (230), utiliser l'indicateur généré (200) à l'aide d'un critère de qualité par rapport au paramètre qui varie (210).
PCT/AT2019/060354 2018-10-25 2019-10-25 Procédé pour utiliser un indicateur Ceased WO2020082102A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112019005344.2T DE112019005344A5 (de) 2018-10-25 2019-10-25 Verfahren zur Bereitstellung eines Indikators

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50924/2018 2018-10-25
ATA50924/2018A AT521864A2 (de) 2018-10-25 2018-10-25 Verfahren zur Bereitstellung eines Indikators

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