CN109270353A - For energy-storage system internal resistance, connect resistance and ripple measurement method and device - Google Patents
For energy-storage system internal resistance, connect resistance and ripple measurement method and device Download PDFInfo
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- CN109270353A CN109270353A CN201811310415.3A CN201811310415A CN109270353A CN 109270353 A CN109270353 A CN 109270353A CN 201811310415 A CN201811310415 A CN 201811310415A CN 109270353 A CN109270353 A CN 109270353A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/08—Measuring resistance by measuring both voltage and current
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- 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]
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Abstract
The internal resistance that the invention discloses a kind of for energy-storage system, the measurement method for connecting resistance and ripple, direct current known to amplitude, frequency, duty ratio or ac current signal are applied in energy-storage system to be measured；It tests energy-storage system to be measured and connector in energy-storage system to be measured and cable is directed to the voltage responsive signal of current signal；Pass through the internal resistance in the Relation acquisition energy-storage system to be measured between current signal and voltage responsive signal and connection resistance data and system ripple in energy-storage system to be measured.Have three function systems of internal resistance measurement, ripple measurement and connection resistance measurement in this method, and can realize above-mentioned feature operation in a set of software and hardware system.System bulk is small, low cost, effectively avoids the measurement difference between each system, guarantees that test parameter has higher accuracy, and have the flexibility and ease for use of test.The invention also discloses the measuring devices of internal resistance, connection resistance and ripple for energy-storage system.
Description
Technical field
The present invention relates to the field of measuring technique of energy-storage system, in particular to a kind of internal resistance for energy-storage system, connection
The measurement method and device of resistance and ripple.
Background technique
In existing patent, number of patent application: in CN201510778727.7, the secondary discharge method of introducing measurement internal resistance and straight
It flows bus ripple and monitors system.Internal resistance measurement and bus ripple monitoring system are split in the program, independent self-contained subsystem
System.But do not have the accuracy that can guarantee test parameter.In addition, use tap side mentioned by CN200820164071.5
Mode formula measurement accumulator internal resistance and connect resistance utilizes the discharge current of 30-100A to measure accumulator internal resistance and connection electricity
Resistance.The patent needs test electric current to be used very big mainly in the battery system being used in series, easy to electric power storage
In the case that the small activity energy in pond, especially battery capacity is poor, unnecessary injury is caused.
Summary of the invention
Based on this, it is necessary to traditional technology there are aiming at the problem that, a kind of internal resistance for energy-storage system, connection electricity are provided
The measurement method and device of resistance and ripple.Specifically, mode employed in the disclosure is measured as in conjunction with internal resistance measurement, ripple
The monitoring system of one, and it is included in the connection resistance test system of distributed energy storage system and battery system.Three function series
System can realize that the system bulk proposed relative to it is smaller, and cost is lower in a set of software and hardware system.Further
Ground can effectively be avoided the measurement difference between each system, protected due to being measured using same set of software and hardware system
Demonstrate,proving test parameter has higher accuracy.In addition, the disclosure is not only suitable for distributed distributed energy storage system by the way of
System and battery system also can be used in the distributed energy storage system and battery system being used in series, and what is covered uses field
Scape has greatly improved.Further, it does not need to realize the technology using the electric current of 30-100A according to the mode that the disclosure uses
Measurement.All measurement process, will not be to electric power storage without being large current discharge to distributed energy storage system or battery system
Pond damages, and has the ease for use of application.
In a first aspect, the internal resistance that the embodiment of the invention provides a kind of for energy-storage system, connecting the survey of resistance and ripple
Amount method, which comprises act on current signal in the energy-storage system to be measured；In the energy-storage system to be measured
And the connection cables in the energy-storage system to be measured carry out the acquisition behaviour for the voltage responsive signal of the current signal
Make；Pass through the internal resistance in the Relation acquisition energy-storage system to be measured between the current signal and the voltage responsive signal
And connection resistance data and system ripple in the energy-storage system to be measured.
The current signal includes pulsating direct current electric current signal or the friendship with predeterminated frequency in one of the embodiments,
Flow current signal.
It is described in the energy-storage system to be measured and the energy-storage system to be measured in one of the embodiments,
Connection cables carry out including: the measurement energy storage system to be measured for the acquisition operation of the voltage responsive signal of the current signal
The company of distributed energy storage system or battery system in system and the distributed energy storage system in the energy-storage system to be measured
Voltage Feedback of the connection cables of wiring cable or the battery system in the energy-storage system to be measured for the current signal
Numerical value；To the current signal of extraction, carried out by analog low-pass filter circuit relevant to the current signal frequency
Filtering processing；Obtain the distributed energy storage system in the energy-storage system to be measured or the electric power storage in the energy-storage system to be measured
The voltage responsive signal of the cell system for the current signal.
The voltage responsive signal is stored up according to the distribution in the energy-storage system to be measured in one of the embodiments,
The current signal of the superposition in battery system in energy system or the energy-storage system to be measured, generates d. c. voltage signal；
The voltage responsive signal according in the energy-storage system to be measured distributed energy storage system or the energy storage system to be measured
The current signal of the superposition in battery system in system generates pulsating dc voltage signal；Or the voltage responsive signal root
According in the distributed energy storage system in the energy-storage system to be measured or the battery system in the energy-storage system to be measured
The current signal of superposition, the ac current signal for generating and acting on the predeterminated frequency in the energy-storage system to be measured have in advance
If the default ac voltage signal of phase difference.
In one of the embodiments, further include: when the energy-storage system to be measured is connected in charge circuit, then determine
The current signal is operated without the addition in the energy-storage system to be measured.
In one of the embodiments, further include: parameter acquisition is carried out to the battery in the energy-storage system to be measured；
According to internal resistance data, connection resistance data and the ripple data in the energy-storage system to be measured of acquisition to the parameter of acquisition
It is modified operation.
In one of the embodiments, further include: to internal resistance in the energy-storage system to be measured of acquisition and to be measured
The energy-storage system in connection resistance data analyzed.
Second aspect, the embodiment of the invention provides a kind of computer readable storage medium, the computer-readable storage
Be stored with computer program on medium, the computer program realized when being executed by processor above-mentioned first aspect for energy storage
The internal resistance of system, the measurement method for connecting resistance and ripple.
The third aspect, the embodiment of the invention provides a kind of computer program products comprising instruction, when the computer journey
When sequence product is run on computers, so that computer executes method described in above-mentioned first aspect.
Fourth aspect, internal resistance, connection resistance and the ripple that the embodiment of the invention also provides a kind of for energy-storage system
Measuring device, described device include: effort module, for acting on current signal in the energy-storage system to be measured；It obtains
Module is carried out for the connection cables in the energy-storage system to be measured and the energy-storage system to be measured for the electricity
Flow the acquisition operation of the voltage responsive signal of signal；Measurement module, for being believed by the current signal and the voltage responsive
The internal resistance in the Relation acquisition energy-storage system to be measured between number and the connection resistance in the energy-storage system to be measured
Data and system ripple.
A kind of internal resistance for energy-storage system provided by the invention, the measurement method and device for connecting resistance and ripple, will
Direct current known to amplitude, frequency, duty ratio etc. or ac current signal are applied in energy-storage system to be measured；Test storage to be measured
Can system and connector in energy-storage system to be measured and cable carry out the voltage responsive signal for current signal；Pass through electricity
It flows in internal resistance and the energy-storage system to be measured in the Relation acquisition energy-storage system to be measured between signal and voltage responsive signal
Connection resistance data and system ripple.Mode combination internal resistance measurement, ripple measurement employed in this method are integrated
Monitoring system, and it is included in the connection resistance test system of distributed energy storage system and battery system, have internal resistance measurement, ripple
Three characteristic functions of measurement and connection resistance measurement.Three function systems can realize in a set of software and hardware system,
The system bulk proposed relative to it is smaller, and cost is lower.Further, due to using same set of software and hardware system into
Row measurement, can effectively avoid the measurement difference between each system, guarantee that test parameter has higher accuracy.In addition,
This method is not only suitable for distributed distributed energy storage system by the way of and battery system also can be used makes in series connection
In distributed energy storage system and battery system, the usage scenario covered has greatly improved.Further, according to the party
The mode that method uses does not need the measurement that the technology is realized using the electric current of 30-100A.All measurement process are not necessarily to distribution
Energy-storage system or battery system are large current discharge, and will not be damaged to battery, and have the ease for use of application.
Detailed description of the invention
Fig. 1 is one of one embodiment of the invention for the internal resistance of energy-storage system, the measurement of connection resistance and ripple
The step flow diagram of method；
Fig. 2 is one of one embodiment of the invention for the internal resistance of energy-storage system, the measurement of connection resistance and ripple
The structural schematic diagram of device；
Fig. 3 is one of one embodiment of the invention for the internal resistance of energy-storage system, the measurement of connection resistance and ripple
The acquisition system connection figure of device provided for the distributed energy storage system or battery system and the disclosure that are used alone；
Fig. 4 is one of one embodiment of the invention for the internal resistance of energy-storage system, the measurement of connection resistance and ripple
The distributed energy storage system or battery system impedance distribution schematic diagram for exclusive use of device；
Fig. 5 is one of one embodiment of the invention for the internal resistance of energy-storage system, the measurement of connection resistance and ripple
The acquisition system connection figure of device provided for the distributed energy storage system or battery system and the disclosure that are used in series；
Fig. 6 is one of another embodiment of the present invention for the internal resistance of energy-storage system, the measurement of connection resistance and ripple
The acquisition system connection figure of device provided for the distributed energy storage system or battery system and the disclosure that are used in series；With
And
Fig. 7 is one of one embodiment of the invention for the internal resistance of energy-storage system, the measurement of connection resistance and ripple
The system architecture exemplary diagram of device.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, by the following examples, it and combines attached
Figure, to the present invention for energy-storage system internal resistance, connection resistance and ripple measurement method and device specific embodiment into
Row is further described.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to limit
The present invention.
Distributed energy storage system and battery system are the important components of energy-storage system.It is different according to application scenarios,
The framework of the energy storaging product type and system that may use is all different.Currently, most of patent be all based on it is a certain various
What the distributed energy storage system or battery system that the battery of class is constituted were designed.Wherein, for the kind of energy storage battery
Class and burst mode have stringent corresponding relationship, and applicability has limitation.The content that this patent is announced, focuses mainly on distribution
The accurate detection of the connection resistance and the ripple parameter that charges of energy-storage system or battery system.By distributed energy storage system in patent
Or the connection resistance of battery system, battery electrochemical impedance, the influence including charging ripple for system comprehensively consider simultaneously
Analysis, to obtain accurate distributed energy storage system or battery system connection resistance parameter, ripple parameter, internal resistance parameter etc.
Data.
As shown in Figure 1, being one of one embodiment for the internal resistance of energy-storage system, the measurement of connection resistance and ripple
The flow diagram of method.Specifically includes the following steps:
Step 102, current signal is acted in energy-storage system to be measured.Wherein, it should be noted that current signal packet
Include pulsating direct current electric current signal or the ac current signal with predeterminated frequency.
In addition, it should be noted that, in one embodiment, this disclosure relates to the internal resistance for energy-storage system, connection
The measurement method of resistance and ripple further include: when energy-storage system to be measured is connected in charge circuit, then Cutoff current signal is not
Carry out the addition operation in energy-storage system to be measured.The diversity and flexibility of measurement are improved as a result,.
Step 104, the connection cables in energy-storage system to be measured and energy-storage system to be measured believe for electric current
Number voltage responsive signal acquisition operation.
In one embodiment, the connection cables in energy-storage system to be measured and energy-storage system to be measured are directed to
The acquisition operation of the voltage responsive signal of current signal includes: distributed energy storage system or storage in measurement energy-storage system to be measured
The connection cables of distributed energy storage system in battery system and energy-storage system to be measured or the storage in energy-storage system to be measured
Voltage Feedback numerical value of the connection cables of battery system for current signal；To the current signal of extraction, by with current signal
The analog filter circuit of frequency dependence is filtered；Obtain distributed energy storage system in energy-storage system to be measured or to
The voltage responsive signal of battery system in the energy-storage system of survey for current signal.
In addition, it should be noted that, voltage responsive signal according in energy-storage system to be measured distributed energy storage system or
The current signal of the superposition in battery system in energy-storage system to be measured generates d. c. voltage signal；Or voltage responsive letter
Number according to the superposition in the distributed energy storage system in energy-storage system to be measured or the battery system in energy-storage system to be measured
Current signal, generate pulsating dc voltage signal；Or voltage responsive signal is stored up according to the distribution in energy-storage system to be measured
The current signal of the superposition in battery system in energy system or energy-storage system to be measured, generates and acts on energy storage to be measured
The ac current signal of predeterminated frequency in system has the default ac voltage signal of preset phase difference.
Step 106, by in the Relation acquisition energy-storage system to be measured between current signal and voltage responsive signal
Resistance and connection resistance data and system ripple in energy-storage system to be measured.
In one embodiment, a kind of internal resistance for energy-storage system, connection resistance involved in the disclosure and ripple
Measurement method further include: parameter acquisition is carried out to the battery in energy-storage system to be measured；According to the energy storage system to be measured of acquisition
Internal resistance data, connection resistance data and ripple data in system are modified operation to the parameter of acquisition.It improves and obtains as a result,
The accuracy of the parameter taken.
In addition, in one embodiment, this disclosure relates to it is a kind of for the internal resistance of energy-storage system, connection resistance and ripple
Measurement method further include: to the internal resistance in the energy-storage system to be measured of acquisition and the connection resistance in energy-storage system to be measured
Data are analyzed.And it alarms for what is analyzed for distributed energy storage system or battery system connecting fault.Report
Alert form is not limited to auditory tone cues or flashing light prompt.
A kind of internal resistance for energy-storage system provided by the invention, the measurement method for connecting resistance and ripple, by amplitude, frequency
Direct current known to rate, duty ratio etc. or ac current signal are applied in energy-storage system to be measured；Test energy storage system to be measured
System and the connector in energy-storage system to be measured and cable carry out the voltage responsive signal for current signal；Believed by electric current
The internal resistance in Relation acquisition energy-storage system to be measured number between voltage responsive signal and the company in energy-storage system to be measured
Connecting resistance data and system ripple.Mode employed in this method is the monitoring being integrated in conjunction with internal resistance measurement, ripple measurement
System, and it is included in the connection resistance test system of distributed energy storage system and battery system, have internal resistance measurement, ripple measurement
And three characteristic functions of connection resistance measurement.Three function systems can realize in a set of software and hardware system, relatively
Smaller in the system bulk that it is proposed, cost is lower.Further, due to being surveyed using same set of software and hardware system
Amount can effectively avoid the measurement difference between each system, guarantee that test parameter has higher accuracy.In addition, the party
Method is not only suitable for distributed distributed energy storage system by the way of and battery system also can be used and be used in series
In distributed energy storage system and battery system, the usage scenario covered has greatly improved.Further, make according to this method
Mode does not need the measurement that the technology is realized using the electric current of 30-100A.All measurement process are not necessarily to distributed energy storage
System or battery system are large current discharge, and will not be damaged to battery, and have the ease for use of application.
Based on the same inventive concept, the measurement for additionally providing a kind of internal resistance for energy-storage system, connecting resistance and ripple
Device.The principle solved the problems, such as due to this device with a kind of aforementioned internal resistance for energy-storage system, connect the survey of resistance and ripple
Amount method is similar, and therefore, the implementation of the device can realize that overlaps will not be repeated according to the specific steps of preceding method.
As shown in Fig. 2, being one of one embodiment for the internal resistance of energy-storage system, the measurement of connection resistance and ripple
The structural schematic diagram of device.The measuring device 10 for being suitable for the internal resistance of energy-storage system, connection resistance and ripple includes: effect mould
Block 200 obtains module 400 and measurement module 600.
Wherein, effort module 200 is for acting on current signal in energy-storage system to be measured；Module 400 is obtained to be used for
Connection cables in energy-storage system to be measured and energy-storage system to be measured carry out the voltage responsive signal for current signal
Acquisition operation；Measurement module 600 is used for through the Relation acquisition energy storage to be measured between current signal and voltage responsive signal
The connection resistance data in internal resistance and energy-storage system to be measured in system.
In order to be further understood that and be proposed with the disclosure a kind of for the internal resistance of energy-storage system, connection resistance and line
The measuring device of wave carries out following example.It should be noted that the range that the disclosure is protected is not limited to following example.
This disclosure relates to a kind of internal resistance for energy-storage system, connect the measuring device of resistance and ripple, technical field is
The measurement and detection of distributed energy storage system and battery system.By the testing scheme being previously mentioned in the disclosure, can to point
The connection resistance of cloth energy-storage system or battery system when connecting with the external world measures, and by this way in for not
The test of the AC signal of same frequency, which is realized, carries out the AC ripple being superimposed on distributed energy storage system or battery system
The scheme of measurement.
By the acquisition system being deployed in the disclosure in distributed energy storage system or battery system, for battery
Parameter is acquired.And it can apply in distributed energy storage system or battery system when needed and test required electric current letter
Number, which can be direct current signal, pulsating direct current signal or the AC signal with specific frequency, measure distributed storage
Can system or battery system and its connection cables for the signal Voltage Feedback.Signal through extraction after, by with signal
Analog low pass (band logical) filter circuit of frequency dependence or digital low pass or bandpass filtering algorithm, are filtered, and
Distributed energy storage system or battery system are formed for the voltage responsive signal of particular current signal.The voltage responsive according to
The current signal that is superimposed in distributed energy storage system or battery system is different, can be DC voltage, pulsating dc voltage or
There is the specific ac voltage signal of certain phase difference with the ac current signal with specific frequency applied.Pass through electric current
Relationship between signal and voltage signal obtains internal resistance and the connection resistance data of distributed energy storage system or battery system.And
According to the analysis of data, alarm for distributed energy storage system or battery system connecting fault.
Further, right by the monitoring modular being deployed in the disclosure in distributed energy storage system or battery system
It is acquired in the parameter of battery.When distributed energy storage system or battery system are connected in charge circuit, it be not distributed
When applying current signal required for test among the above on formula energy-storage system or battery system, distributed energy storage is directly extracted
Voltage signal in system or battery system, and filtered by the relevant analog low pass for having different frequency characteristic or band logical
Wave circuit or digital low pass or bandpass filtering algorithm, are filtered, and can directly obtain distributed energy storage system or electric power storage
Due to the charging ripple signal of the different frequency of power-supply system output on cell system.
Further, when internal resistance data, the connection resistance data for getting distributed energy storage system or battery system
And after ripple data, each parameter further can be accurately corrected, to obtain the accurate of distributed energy storage system or battery system
AC impedance, DC internal resistance, DC connection resistance and the charging ripple signal corresponding to different frequency.In addition, when distributed storage
Can system or battery system it is external connection resistance confirmation after, the scheme of the disclosure can be used, utilize the connection of battery
The discharge current and charging current of ohmically Voltage Feedback measurement battery.It should be noted that the disclosure is formed by is
System is directed to distributed energy storage system or the application scenarios different scenes of battery system slightly have difference during deployment.
As shown in figure 3, work as tested distributed energy storage system or battery system alone or as an entirety,
For example, a battery group being used in series is in use, the disclosure uses 6 collimation methods to the distributed energy storage system or storage tested
Battery system is tested.6 cables connecting with equipment are being respectively as follows: the gathering line connecting with positive external connection fixing end just
1 and positive excitation line；The gathering line positive 2 being directly connected to distributed energy storage system or battery system anode；With negative outer
It is connected and fixed the gathering line minus 1 and cathode excitation line of end connection；Directly connect with distributed energy storage system or battery system cathode
The gathering line connect minus 2.Further, system passes through the circuit between positive excitation line and cathode excitation line in distributed energy storage
Apply current signal required for testing in system or battery system, which can be direct current signal, pulsating direct current
Signal or AC signal with specific frequency measure distributed energy storage system or battery system and its connection cables for this
The Voltage Feedback of signal.Signal after extracting, by analog low pass (band logical) filter circuit relevant to signal frequency or
Digital low pass or bandpass filtering algorithm, are filtered, and form distributed energy storage system or battery system for spy
The voltage feedback signal of constant current signal.
Belong to as shown in figure 4, working as tested distributed energy storage system or battery system alone or as one
It is whole, for example, a battery group being used in series is in use, each section resistance acquired in the current loop of measurement and resistance
Anti- includes: positive external terminal connection resistance r+1；Positive wire connects resistance R+；Anode connection resistance r+2；Distributed energy storage
System or battery system internal resistance Z；Cathode external terminal connects resistance r-1；Cathode conductor connects resistance R-.
As shown in figure 5, the disclosure uses 5 collimation methods pair in the distributed energy storage system or battery system being used in series
The distributed energy storage system or battery system tested are tested.Connect with equipment anode for basis when, can be by system
Cathode gathering line 1 and cathode gathering line 2 be merged into a gathering line.5 cables being connect with equipment be respectively as follows: with outside anode
Portion is connected and fixed the gathering line positive 1 and positive excitation line of end connection；Directly with distributed energy storage system or battery system anode
The gathering line of connection positive 2；The gathering line being directly connected to distributed energy storage system or battery system cathode is negative.It needs to illustrate
It is the connection type identified in this connection type, that is, Fig. 5 and Fig. 6.At this point, system each section resistance collected and impedance packet
Include: positive external terminal connects resistance r+1；Positive wire connects resistance R+；Anode connection resistance r+2；Distributed energy storage system
Or battery system internal resistance Z；Cathode external terminal connects resistance r-1.
As shown in fig. 6, wherein due to the series system of system, in number one distributed energy storage system or battery system just
Pole coupling part cathode conductor connection resistance R- obtained and anode in number one distributed energy storage system or battery system
Coupling part cathode conductor connection resistance R+ obtained is identical.Further, it in Fig. 5 and Fig. 6, merely illustrates in sampling system
The case where being connect with distributed energy storage system or battery system anode.Same mode is also applied for positive 1 He of gathering line
The case where gathering line 2 is merged into a sampling line, retains cathode gathering line 1 and gathering line 2 connect with equipment cathode when being basic,
The positive gathering line 1 of system and positive gathering line 2 can be merged into a positive gathering line.5 cables are respectively as follows: and cathode
The gathering line minus 1 and cathode excitation line of external connection fixing end connection；It is straight with distributed energy storage system or battery system cathode
The gathering line connect in succession minus 2；The gathering line being directly connected to distributed energy storage system or battery system anode is just.
It should be noted that in above-mentioned impedance and resistance, it can basis except distributed energy storage system or battery system internal resistance Z
System mode exists except variation, every other relevant resistance parameter, has after system is installed fix completely relatively fixed
Value.Only after system does not connect normally, the coupling part of system loosens or causes coupling part to corrode due to other reasons
Change parameter and has relatively unambiguous variation.By above-mentioned measurement method, the connecting fault of system can be clearly judged.Meanwhile
The part connects in situation known to resistance, passes through analog low pass (band logical) filter circuit or digital low pass or bandpass filtering
Algorithm can clearly test the AC voltage parameter for obtaining the different frequency of superposition on the portion.Pass through the measurement to the voltage
It can get.
In addition, it should be noted that, distributed energy storage system and battery system have the characteristic of high current charge-discharge, it is
It is excessive if there is connection resistance caused by bad connection in system, it can be in large current charge or discharge process, in junction shape
At overheat, very big damage can be caused to system.Due to system bad connection, it will cause system connection terminal overheat and melt, very
To causing fire.In addition, using lead-acid battery as in the electro-chemical systems of representative, system has the corruption such as acid solution in charge and discharge process
Lose gas discharge.Coupling part is caused to corrode, will have a direct impact on connection resistance after long-play.In high current charge-discharge mistake
There is the node of overheat in Cheng Zhonghui.Cause relevant accident.The charging that distributed energy storage system and battery system are connected is set
Standby quality directly affects the service life of battery.When the charging ripple amplitude being superimposed on battery is excessive, the use of battery
Service life will be greatly reduced.Present disclose provides the schemes that a low cost effectively monitors accumulator terminal charging ripple.Pass through this
Disclosed device realizes the connection electricity for distributed energy storage system and battery system in the case where not being superimposed excessive partial picture
The measurement of resistance and ripple.There is apparent progress relative to other prior arts.
As shown in fig. 7, system according to application scenarios difference, in the way of Fig. 5 or Fig. 6 with distributed energy storage system and storage
Battery system connection.It is formed in the distributed energy storage system and battery system tested by exciting current circuit centainly
Electric current, the electric current can be DC current signal, pulsating direct current electric current signal or AC signal.Pass through gating and detection circuit portion
It point picks up, and after being extracted by analog low pass (band logical) filter circuit or digital low pass or bandpass filtering algorithm, captures respectively
Portion voltage feedback, obtains corresponding impedance and resistance parameter.It, can be by analog low when exciting current circuit does not work
Logical (band logical) filter circuit or digital low pass or bandpass filtering algorithm extract each section for the alternating current of different frequency signals
Pressure feedback, obtains the ripple parameter in distributed energy storage system and battery system.
A kind of internal resistance for energy-storage system provided by the invention, the measuring device for connecting resistance and ripple, effort module
Direct current known to amplitude, frequency, duty ratio etc. or ac current signal are applied in energy-storage system to be measured；Module is obtained to survey
It tries energy-storage system to be measured and connector in energy-storage system to be measured and cable carries out voltage responsive for current signal
Signal；Measurement module by the internal resistance in Relation acquisition energy-storage system to be measured between current signal and voltage responsive signal with
And connection resistance data and system ripple in energy-storage system to be measured.Mode employed in the device is that internal resistance is combined to survey
The monitoring system that amount, ripple measurement are integrated, and it is included in the connection resistance test system of distributed energy storage system and battery system
System has three characteristic functions of internal resistance measurement, ripple measurement and connection resistance measurement.Three function systems can be a set of soft
It is realized in part and hardware system, the system bulk proposed relative to it is smaller, and cost is lower.Further, due to using same
A set of software and hardware system measure, and can effectively avoid the measurement difference between each system, guarantee test parameter tool
There is higher accuracy.In addition, the device is not only suitable for distributed distributed energy storage system and battery system by the way of
System also can be used in the distributed energy storage system and battery system being used in series, and the usage scenario covered has very big mention
It rises.Further, the measurement that the technology is realized using the electric current of 30-100A is not needed according to the mode that the device uses.It is all
Measurement process is not necessarily to be large current discharge distributed energy storage system or battery system, will not damage to battery,
And there is the ease for use of application.
The embodiment of the invention also provides a kind of computer readable storage mediums.It is stored on the computer readable storage medium
There is computer program, which is executed by processor in Fig. 1.
The embodiment of the invention also provides a kind of computer program products comprising instruction.When the computer program product exists
When being run on computer, so that the method that computer executes above-mentioned Fig. 1.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
The basic principle of the disclosure is described in conjunction with specific embodiments above, however, it is desirable to, it is noted that in the disclosure
The advantages of referring to, advantage, effect etc. are only exemplary rather than limitation, must not believe that these advantages, advantage, effect etc. are the disclosure
Each embodiment is prerequisite.In addition, detail disclosed above is merely to exemplary effect and the work being easy to understand
With, rather than limit, it is that must be realized using above-mentioned concrete details that above-mentioned details, which is not intended to limit the disclosure,.
Device involved in the disclosure, device, equipment, system block diagram only as illustrative example and being not intended to
It is required that or hint must be attached in such a way that box illustrates, arrange, configure.As those skilled in the art will appreciate that
, it can be connected by any way, arrange, configure these devices, device, equipment, system.Such as "include", "comprise", " tool
" etc. word be open vocabulary, refer to " including but not limited to ", and can be used interchangeably with it.Vocabulary used herein above
"or" and "and" refer to vocabulary "and/or", and can be used interchangeably with it, unless it is not such that context, which is explicitly indicated,.Here made
Vocabulary " such as " refers to phrase " such as, but not limited to ", and can be used interchangeably with it.
In addition, as used herein, the "or" instruction separation used in the enumerating of the item started with "at least one"
It enumerates, such as enumerating for " at least one of A, B or C " means A or B or C or AB or AC or BC or ABC (i.e. A and B and C).
In addition, wording " exemplary " does not mean that the example of description is preferred or more preferable than other examples.
It may also be noted that in the system and method for the disclosure, each component or each step are can to decompose and/or again
Combination nova.These decompose and/or reconfigure the equivalent scheme that should be regarded as the disclosure.
The technology instructed defined by the appended claims can not departed from and carried out to the various of technology described herein
Change, replace and changes.In addition, the scope of the claims of the disclosure is not limited to process described above, machine, manufacture, thing
Composition, means, method and the specific aspect of movement of part.Can use carried out to corresponding aspect described herein it is essentially identical
Function or realize essentially identical result there is currently or later to be developed processing, machine, manufacture, event group
At, means, method or movement.Thus, appended claims include such processing, machine, manufacture, event within its scope
Composition, means, method or movement.
The above description of disclosed aspect is provided so that any person skilled in the art can make or use this
It is open.Various modifications in terms of these are readily apparent to those skilled in the art, and are defined herein
General Principle can be applied to other aspect without departing from the scope of the present disclosure.Therefore, the disclosure is not intended to be limited to
Aspect shown in this, but according to principle disclosed herein and the consistent widest range of novel feature.
Above description is had been presented for for purposes of illustration and description.In addition, this description is not intended to the reality of the disclosure
It applies example and is restricted to form disclosed herein.Although already discussed above multiple exemplary aspects and embodiment, this field skill
Its certain modifications, modification, change, addition and sub-portfolio will be recognized in art personnel.
Claims (10)
1. a kind of internal resistance for energy-storage system, the measurement method for connecting resistance and ripple, which is characterized in that the method packet
It includes:
Current signal is acted in the energy-storage system to be measured；
Connection cables in the energy-storage system to be measured and the energy-storage system to be measured believe for the electric current
Number voltage responsive signal acquisition operation；
In in the Relation acquisition energy-storage system to be measured between the current signal and the voltage responsive signal
Resistance and connection resistance data and system ripple in the energy-storage system to be measured.
2. the internal resistance according to claim 1 for energy-storage system, the measurement method for connecting resistance and ripple, feature exist
In the current signal includes pulsating direct current electric current signal or the ac current signal with predeterminated frequency.
3. the internal resistance according to claim 1 for energy-storage system, the measurement method for connecting resistance and ripple, feature exist
In the connector and cable in the energy-storage system to be measured and the energy-storage system to be measured is carried out for described
The acquisition of the voltage responsive signal of current signal operates
Measure distributed energy storage system in the energy-storage system to be measured or battery system and the energy storage system to be measured
The connector and line of the connection cables of distributed energy storage system in system or the battery system in the energy-storage system to be measured
Voltage Feedback numerical value of the cable for the current signal；
To the voltage signal of extraction, place is filtered by analog filter circuit relevant to the current signal frequency
Reason；
Obtain the distributed energy storage system in the energy-storage system to be measured or the battery system in the energy-storage system to be measured
The voltage responsive signal united for the current signal.
4. the internal resistance according to claim 3 for energy-storage system, the measurement method for connecting resistance and ripple, feature exist
In, the voltage responsive signal according in the energy-storage system to be measured distributed energy storage system or the energy storage system to be measured
The current signal of the superposition in battery system in system generates d. c. voltage signal；Or
The voltage responsive signal is according to the distributed energy storage system or the energy storage to be measured in the energy-storage system to be measured
The current signal of the superposition in battery system in system generates pulsating dc voltage signal；Or
The voltage responsive signal is according to the distributed energy storage system or the energy storage to be measured in the energy-storage system to be measured
The current signal of the superposition in battery system in system generates and acts on the default frequency in the energy-storage system to be measured
The ac current signal of rate has the default ac voltage signal of preset phase difference.
5. the internal resistance according to claim 1 for energy-storage system, the measurement method for connecting resistance and ripple, feature exist
In, further includes: when the energy-storage system to be measured is connected in charge circuit, then determine the current signal without to be measured
Addition operation in the energy-storage system.
6. the internal resistance according to claim 1 for energy-storage system, the measurement method for connecting resistance and ripple, feature exist
In, further includes: parameter acquisition is carried out to the battery in the energy-storage system to be measured；
According to internal resistance data, connection resistance data and the ripple data in the energy-storage system to be measured of acquisition to acquisition
Parameter is modified operation.
7. the internal resistance according to claim 1 for energy-storage system, the measurement method for connecting resistance and ripple, feature exist
In, further includes: the connection electricity to the internal resistance in the energy-storage system to be measured of acquisition and in the energy-storage system to be measured
Resistance data are analyzed.
8. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is held by processor
The step of any one of claim 1-7 the method is realized when row.
9. a kind of computer equipment including memory, processor and stores the meter that can be run on a memory and on a processor
Calculation machine program, which is characterized in that the processor realizes side described in any one of described claim 1-7 when executing described program
The step of method.
10. a kind of internal resistance for energy-storage system, the measuring device for connecting resistance and ripple, feature are lain in, described device packet
It includes:
Effort module, for acting on current signal in the energy-storage system to be measured；
Module is obtained, carries out needle for the connection cables in the energy-storage system to be measured and the energy-storage system to be measured
Acquisition operation to the voltage responsive signal of the current signal；
Measurement module, for passing through the Relation acquisition storage to be measured between the current signal and the voltage responsive signal
Internal resistance in energy system and connection resistance data and ripple value in the energy-storage system to be measured.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811310415.3A CN109270353A (en) | 2018-11-06 | 2018-11-06 | For energy-storage system internal resistance, connect resistance and ripple measurement method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811310415.3A CN109270353A (en) | 2018-11-06 | 2018-11-06 | For energy-storage system internal resistance, connect resistance and ripple measurement method and device |
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| CN109270353A true CN109270353A (en) | 2019-01-25 |
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