CN112858849A - Off-line detection method and device with insulation detection function - Google Patents
Off-line detection method and device with insulation detection function Download PDFInfo
- Publication number
- CN112858849A CN112858849A CN202110025169.2A CN202110025169A CN112858849A CN 112858849 A CN112858849 A CN 112858849A CN 202110025169 A CN202110025169 A CN 202110025169A CN 112858849 A CN112858849 A CN 112858849A
- Authority
- CN
- China
- Prior art keywords
- insulation
- insulation detection
- resistance
- detection device
- control signal
- 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.)
- Granted
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 320
- 238000001514 detection method Methods 0.000 title claims abstract description 263
- 238000004146 energy storage Methods 0.000 claims abstract description 55
- 230000006870 function Effects 0.000 claims description 58
- 238000000034 method Methods 0.000 claims description 21
- 230000011664 signaling Effects 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 11
- 238000004590 computer program Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 101150016367 RIN1 gene Proteins 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The offline detection method and the offline detection device with the insulation detection function respectively acquire a first control signal and a second control signal, and control first insulation detection equipment or second insulation detection equipment to detect insulation resistance of a high-voltage bus main positive or main negative pair energy storage direct current charging pile shell, namely the first insulation resistance; controlling the first insulation detection device or the second insulation detection device to be connected into a known resistor, wherein the known resistor is a known resistor required by self insulation detection in the first insulation detection device or the second insulation detection device; controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or main negative pair energy storage direct current charging shell of the high-voltage bus, namely the second insulation resistance; when the resistance value of the second insulation resistor is judged to be equal to the resistance value of the first insulation resistor in parallel connection with the known resistor, the insulation detection function of the first insulation detection device or the second insulation detection device is determined to be normal, and effective detection of the insulation detection function is achieved.
Description
Technical Field
The application relates to the technical field of new energy high-voltage insulation detection, in particular to an offline detection method and device with an insulation detection function.
Background
In the related art, a BMS (Battery Management System) and an EMS (Energy Management System) are generally provided in a direct current charging pile (a power Battery pack or other Energy storage systems are provided inside the direct current charging pile) with Energy storage, and in a conventional case, when a complete machine is offline tested, high-voltage insulation detection is required for both the BMS and the EMS in a brand-new device.
However, the high-voltage insulation detection of the two controllers of the BMS and the EMS is not external, so that the high-voltage insulation detection function of the simulation insulation resistance verification controller cannot be added through an external test tool during the offline test of the whole machine.
Disclosure of Invention
The application provides an offline detection method and device with an insulation detection function, and aims to effectively detect the insulation detection function of an energy storage direct current charging pile when a complete machine is offline.
In order to achieve the above object, the present application provides the following technical solutions:
an offline detection method with insulation detection function is applied to an energy storage direct current charging pile, and the energy storage direct current charging pile comprises the following steps: a first insulation detection device and a second insulation detection device, the method comprising:
acquiring a first control signal, and controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or the main negative of the high-voltage bus to the energy storage direct current charging pile shell, namely the first insulation resistance;
controlling the first insulation detection device or the second insulation detection device to be connected into a known resistor, wherein the known resistor is a known resistor required by self insulation detection in the first insulation detection device or the second insulation detection device;
acquiring a second control signal, and controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or the main negative of the high-voltage bus to the energy storage direct current charging pile shell, namely the second insulation resistance;
determining whether a positive resistance value of the second insulation resistance is equal to a resistance value of the first insulation resistance in parallel with the known resistance;
and if the positive resistance value of the second insulation resistor is equal to the resistance value of the first insulation resistor connected with the known resistor in parallel, determining that the insulation detection function of the first insulation detection device or the second insulation detection device is normal.
Wherein, energy storage direct current fills electric pile still includes: the first high-voltage equipment and the second high-voltage equipment obtain the first control signal, specifically:
determining the received control signal as the first control signal when a switch between the first high voltage device and the second high voltage device is closed.
The acquiring of the second control signal specifically includes:
and when a switch in the first insulation detection device or the second insulation detection device is closed, determining that the received control signal is the second control signal.
The utility model provides a detection device rolls off production line of insulation detection function is applied to energy storage direct current and fills electric pile, energy storage direct current fills electric pile and includes: first insulation detection equipment and second insulation detection equipment, the device includes:
the first control unit is used for acquiring a first control signal and controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or the main negative of the high-voltage bus to the energy storage direct current charging pile shell, namely the first insulation resistance;
the second control unit is used for controlling the first insulation detection device or the second insulation detection device to be connected with a known resistor, wherein the known resistor is a known resistor required by self insulation detection in the first insulation detection device or the second insulation detection device;
the third control unit is used for acquiring a second control signal and controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or negative of the high-voltage bus to the energy storage direct current charging pile shell, namely the second insulation resistance;
a determination unit configured to determine whether a positive resistance value of the second insulation resistance is equal to a resistance value of the first insulation resistance value and the known resistance in parallel;
and the determining unit is used for determining that the insulation detection function of the first insulation detection device or the second insulation detection device is normal if the positive resistance value of the second insulation resistance is equal to the resistance value of the first insulation resistance connected in parallel with the known resistance.
Wherein, energy storage direct current fills electric pile still includes: the first control unit is specifically configured to:
determining the received control signal as the first control signal when a switch between the first high voltage device and the second high voltage device is closed.
Wherein the second control unit is specifically configured to:
and when a switch in the first insulation detection device or the second insulation detection device is closed, determining that the received control signal is the second control signal.
A storage medium comprising a stored program, wherein a device on which the storage medium is located is controlled to perform the insulation detection function offline detection method as described above when the program is run.
An electronic device comprising at least one processor, and at least one memory, bus connected with the processor; the processor and the memory complete mutual communication through the bus; the processor is configured to call the program instructions in the memory to execute the offline detection method of the insulation detection function as described above.
The application discloses offline detection method and device with insulation detection function, which are applied to energy storage direct current charging piles, wherein the energy storage direct current charging piles comprise: a first insulation detection device and a second insulation detection device, the method comprising: acquiring a first control signal, and controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or the main negative of the high-voltage bus to the energy storage direct current charging pile shell, namely the first insulation resistance; controlling the first insulation detection device or the second insulation detection device to be connected into a known resistor, wherein the known resistor is a known resistor required by self insulation detection in the first insulation detection device or the second insulation detection device; controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or main negative of the high-voltage bus to the shell of the energy storage direct current charging pile, namely the second insulation resistance; judging whether the resistance value of the second insulation resistor is equal to the resistance value of the first insulation resistor in parallel connection with the known resistor; and if so, determining that the insulation detection function of the first insulation detection equipment or the second insulation detection equipment is normal. This application carries out mutual detection when the complete machine rolls off the production line through the characteristics of first insulation detection equipment and the insulation detection equipment's of second insulation detection equipment to when satisfying the complete machine and roll off the production line, realize effectively detecting the insulation detection function of energy storage direct current charging pile.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an energy storage system disclosed in an embodiment of the present application;
FIG. 2 is a flow chart of a method for detecting an insulation fault in an insulation detection system according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a charging pile system disclosed in the embodiment of the present application;
FIG. 4 is a schematic structural diagram of a down line detection device with insulation detection function according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in FIG. 1, the invention aims to perform mutual detection when the whole machine is off-line through the characteristics of the insulation circuits of the two circuits so as to meet the detection of respective insulation detection functions when the whole machine is off-line.
In fig. 1, R0 is a known resistance required for insulation detection in an insulation detection apparatus; K1-K10 are switches (which can be optical couplers, optical MOS, relays and the like); rins +/Rins-is the insulation resistance of the high-voltage bus pair PE; A/D1 and A/D2 are insulation detection voltage samples of the insulation detection equipment; PE is the shell of the whole electrical equipment.
It should be noted that the whole machine offline test is the last procedure before the product leaves the factory, and the integrity of the product must be ensured, and there is no any disassembly and assembly process. For the insulation test shown in fig. 1, the whole electrical network is inside the whole machine, and the external known quantity cannot be added to verify the function of the equipment; therefore, whether the insulation detection function of the insulation detection equipment is normal can be detected by adding the known resistor in the existing circuit between the high-voltage bus and the PE according to the characteristics of the internal circuit of the equipment.
Referring to fig. 2, a schematic flow chart of an offline detection method with an insulation detection function according to an embodiment of the present application is shown.
As shown in fig. 2, an offline detection method with an insulation detection function is provided in the embodiments of the present application, and is characterized in that the offline detection method is applied to an energy storage dc charging pile, as shown in fig. 1, the energy storage dc charging pile includes: a first insulation detection device (high voltage device 1) and a second insulation detection device (high voltage device 2), the method:
s201: and acquiring a first control signal, and controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or the main negative of the high-voltage bus to the energy storage direct current charging pile shell, namely the first insulation resistance.
S202: controlling the first insulation detection device or the second insulation detection device to access a known resistor, wherein the known resistor is a known resistor required by self insulation detection in the first insulation detection device or the second insulation detection device
S203: and acquiring a second control signal, and controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or the main negative of the high-voltage bus to the energy storage direct current charging pile shell, namely the second insulation resistance.
S204: it is determined whether the resistance value of the second insulation resistance is equal to the resistance value of the first insulation resistance in parallel with the known resistance.
S205: and if the resistance value of the second insulation resistor is equal to the resistance value of the first insulation resistor connected with the known resistor in parallel, determining that the insulation detection function of the first insulation detection device or the second insulation detection device is normal.
It needs to be further explained that, the energy storage direct current charging pile further includes: the first high-voltage equipment and the second high-voltage equipment obtain the first control signal, specifically:
determining the received control signal as the first control signal when a switch between the first high voltage device and the second high voltage device is closed.
It should be further noted that, the acquiring the second control signal specifically includes:
and when a switch in the first insulation detection device or the second insulation detection device is closed, determining that the received control signal is the second control signal.
The off-line detection method of the insulation detection function is specifically described with reference to fig. 1:
the insulation function offline detection method of the insulation detection equipment 1 comprises the following steps:
1) closing K9 and K10, and respectively recording insulation resistances of main positive and negative pairs PE of the high-voltage bus detected by the insulation detection equipment 1 as Rins1+ and Rins 1-;
2) closing K1, K3 and K4, and detecting the insulation resistance of the main positive and main negative pairs of PE of the high-voltage bus by the insulation detection equipment 1 to respectively obtain Rins2+ and Rins 2-;
3) and judging whether the Rins2+ is equal to (or meets a certain deviation, wherein the deviation value is determined by the precision of the insulation detection circuit) Rins1+ is connected in parallel with the R0, if so, judging that the insulation detection function is normal, and if not, judging that the insulation detection function is abnormal.
The off-line detection method for the insulation function of the insulation detection equipment 2 comprises the following steps:
1) closing K9 and K10, and respectively recording insulation resistances of main positive and negative pairs PE of the high-voltage bus detected by the insulation detection equipment 2 as Rins1+ and Rins 1-;
2) closing K5, K7 and K8, and detecting the insulation resistance of the main positive and main negative pairs of PE of the high-voltage bus by the insulation detection equipment 2 to respectively obtain Rins2+ and Rins 2-;
3) and judging whether the Rins2+ is equal to (or meets a certain deviation, wherein the deviation value is determined by the precision of the insulation detection circuit) Rins1+ is connected in parallel with the R0, if so, judging that the insulation detection function is normal, and if not, judging that the insulation detection function is abnormal.
In the embodiment of the present application, as shown in fig. 3, R0 is a known resistance required for insulation detection in BMS or EMS in fig. 3; K1-K10 are switches (which can be optical couplers, optical MOS, relays and the like); r +/R-is the insulation resistance of the high-voltage bus pair PE; A/D1 and A/D2 are insulation detection voltage samples of BMS or EMS; PE is a charging pile complete machine shell; BAT + is the main positive of the energy storage battery of the charging pile; BAT-is the main negative of the energy storage battery of the charging pile.
As shown in fig. 3, the BMS is responsible for high voltage and insulation detection of the pack terminal of the energy storage battery, and the EMS is responsible for high voltage and insulation detection of the AC/DC terminal. Inside BMS and EMS's insulation detection electric network all filled electric pile, when the complete machine detected that rolls off the production line, can't add the intervention and verify whether insulation detection circuit function is normal.
It should be noted that, the main operating states of the charging pile include: the AC/DC charges an energy storage battery pack in the charging pile (energy supplement), and when a vehicle is charged, the energy storage battery pack and the AD/DC charge an external vehicle together (a schematic diagram of the vehicle is not shown in the upper figure).
The invention aims to realize the function mutual detection of the insulation detection circuits of the BMS and the EMS through the strategy in the controller on the premise of no additional intervention, and achieve the function confirmation of the BMS and the EMS when the whole machine is off-line tested.
The offline detection method for performing the insulation detection function by using the charging pile in combination with the method shown in fig. 3 comprises the following steps:
the EMS insulation function offline detection method comprises the following steps:
1) closing K9 and K10, and respectively recording insulation resistances of main positive and main negative pairs of PE of the high-voltage bus detected by EMS as Rins1+ and Rins 1-;
2) closing K1, K3 and K4, and respectively determining the insulation resistance of the main positive and negative pairs of PE of the high-voltage bus as Rins2+ and Rins 2-by EMS re-detection;
3) and judging whether the Rins2+ is equal to (or meets a certain deviation value determined by the precision of the insulation detection circuit) Rin1+ is connected with R0 in parallel, if so, judging that the insulation detection function is normal, and if not, judging that the insulation detection function is abnormal.
The BMS insulation function offline detection method comprises the following steps:
1) closing K9 and K10, and respectively recording insulation resistances of main positive and negative pairs of PE of the high-voltage bus detected by the BMS as Rins1+ and Rins 1-;
2) closing K5, K7 and K8, and detecting the insulation resistance of the main positive and negative pairs of PE of the high-voltage bus by the BMS to respectively obtain Rins2+ and Rins 2-;
3) and judging whether the Rins2+ is equal to (or meets a certain deviation value determined by the precision of the insulation detection circuit) Rin1+ is connected with R0 in parallel, if so, judging that the insulation detection function is normal, and if not, judging that the insulation detection function is abnormal.
The offline detection method with the insulation detection function, provided by the embodiment of the application, is applied to an energy storage direct current charging pile, and the energy storage direct current charging pile comprises the following steps: a first insulation detection device and a second insulation detection device, the method comprising: acquiring a first control signal, and controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or the main negative of the high-voltage bus to the energy storage direct current charging pile shell, namely the first insulation resistance; controlling the first insulation detection device or the second insulation detection device to be connected into a known resistor, wherein the known resistor is a known resistor required by self insulation detection in the first insulation detection device or the second insulation detection device; controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or main negative of the high-voltage bus to the shell of the energy storage direct current charging pile, namely the second insulation resistance; judging whether the resistance value of the second insulation resistor is equal to the resistance value of the first insulation resistor in parallel connection with the known resistor; and if so, determining that the insulation detection function of the first insulation detection equipment or the second insulation detection equipment is normal. This application carries out mutual detection when the complete machine rolls off the production line through the characteristics of first insulation detection equipment and the insulation detection equipment's of second insulation detection equipment to when satisfying the complete machine and roll off the production line, realize effectively detecting the insulation detection function of energy storage direct current charging pile.
Referring to fig. 4, based on the offline detection method with insulation detection function disclosed in the foregoing embodiment, this embodiment correspondingly discloses an offline detection device with insulation detection function, which is applied to an energy storage dc charging pile, where the energy storage dc charging pile includes: first insulation detection equipment and second insulation detection equipment, the device includes:
the first control unit 401 is configured to obtain a first control signal, and control the first insulation detection device or the second insulation detection device to detect an insulation resistance of a main positive or a main negative of the high-voltage bus to the housing of the energy storage dc charging pile, where the insulation resistance is the first insulation resistance;
a second control unit 402, configured to control the first insulation detecting device or the second insulation detecting device to access a known resistance, where the known resistance is a known resistance required for self insulation detection in the first insulation detecting device or the second insulation detecting device;
a third control unit 403, configured to obtain a second control signal, and control the first insulation detection device or the second insulation detection device to detect an insulation resistance of the high-voltage bus to the energy storage dc charging pile housing, where the insulation resistance is a second insulation resistance;
a determination unit 404 configured to determine whether a resistance value of the second insulation resistor is equal to a resistance value of the first insulation resistor in parallel with the known resistor;
a determining unit 405, configured to determine that the insulation detection function of the first insulation detection device or the second insulation detection device is normal if the resistance value of the second insulation resistance is equal to the resistance value of the first insulation resistance connected in parallel with the known resistance.
Further, energy storage direct current fills electric pile still includes: a first high voltage device and a second high voltage device, the first control unit 401 is specifically configured to:
determining the received control signal as the first control signal when a switch between the first high voltage device and the second high voltage device is closed.
Further, the second control unit 402 is specifically configured to:
and when a switch in the first insulation detection device or the second insulation detection device is closed, determining that the received control signal is the second control signal.
The off-line detection device with the insulation detection function comprises a processor and a memory, wherein the first control unit, the second control unit, the third control unit, the judgment unit, the determination unit and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.
The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. The inner core can be provided with one or more than one, and the insulation circuit of the first insulation detection equipment and the second insulation detection equipment is characterized in that mutual detection is carried out when the complete machine is off line, so that effective detection of the insulation detection function of the energy storage direct current charging pile is realized when the complete machine is off line.
An embodiment of the present application provides a storage medium on which a program is stored, the program implementing the offline detection method of the insulation detection function when executed by a processor.
The embodiment of the application provides a processor, wherein the processor is used for running a program, and the offline detection method of the insulation detection function is executed when the program runs.
An electronic device 50 includes, as shown in fig. 5, at least one processor 501, at least one memory 502 connected to the processor, and a bus 503; the processor 501 and the memory 502 complete communication with each other through the bus 503; the processor 501 is used to call the program instructions in the memory 502 to execute the offline detection method of the insulation detection function.
The electronic device herein may be a server, a PC, a PAD, a mobile phone, etc.
The present application further provides a computer program product adapted to perform a program for initializing the following method steps when executed on a data processing device:
acquiring a first control signal, and controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or the main negative of the high-voltage bus to the energy storage direct current charging pile shell, namely the first insulation resistance;
controlling the first insulation detection device or the second insulation detection device to be connected into a known resistor, wherein the known resistor is a known resistor required by self insulation detection in the first insulation detection device or the second insulation detection device;
acquiring a second control signal, and controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or the main negative of the high-voltage bus to the energy storage direct current charging pile shell, namely the second insulation resistance;
determining whether or not the resistance value of the second insulation resistance is equal to the resistance value of the first insulation resistance in parallel with the known resistance;
and if the resistance value of the second insulation resistor is equal to the resistance value of the first insulation resistor connected with the known resistor in parallel, determining that the insulation detection function of the first insulation detection device or the second insulation detection device is normal.
Preferably, further, energy storage direct current fills electric pile and still includes: the first high-voltage equipment and the second high-voltage equipment obtain the first control signal, specifically:
determining the received control signal as the first control signal when a switch between the first high voltage device and the second high voltage device is closed.
Preferably, the acquiring the second control signal specifically includes:
and when a switch in the first insulation detection device or the second insulation detection device is closed, determining that the received control signal is the second control signal.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a device includes one or more processors (CPUs), memory, and a bus. The device may also include input/output interfaces, network interfaces, and the like.
The memory may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip. The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (8)
1. An offline detection method with insulation detection function is applied to an energy storage direct current charging pile, and the energy storage direct current charging pile comprises the following steps: a first insulation detection device and a second insulation detection device, the method comprising:
acquiring a first control signal, and controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or the main negative of the high-voltage bus to the energy storage direct current charging pile shell, namely the first insulation resistance;
controlling the first insulation detection device or the second insulation detection device to be connected into a known resistor, wherein the known resistor is a known resistor required by self insulation detection in the first insulation detection device or the second insulation detection device;
acquiring a second control signal, and controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or the main negative of the high-voltage bus to the energy storage direct current charging pile shell, namely the second insulation resistance;
determining whether a positive resistance value of the second insulation resistance is equal to a resistance value of the first insulation resistance in parallel with the known resistance;
and if the positive resistance value of the second insulation resistor is equal to the resistance value of the first insulation resistor connected with the known resistor in parallel, determining that the insulation detection function of the first insulation detection device or the second insulation detection device is normal.
2. The method of claim 1, wherein the energy storage dc charging post further comprises: the first high-voltage equipment and the second high-voltage equipment obtain the first control signal, specifically:
determining the received control signal as the first control signal when a switch between the first high voltage device and the second high voltage device is closed.
3. The method according to claim 1, wherein the obtaining of the second control signal is specifically:
and when a switch in the first insulation detection device or the second insulation detection device is closed, determining that the received control signal is the second control signal.
4. The utility model provides an insulating detection function's detection device that rolls off production line which detects, its characterized in that is applied to the energy storage direct current and fills electric pile, the energy storage direct current fills electric pile and includes: first insulation detection equipment and second insulation detection equipment, the device includes:
the first control unit is used for acquiring a first control signal and controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or the main negative of the high-voltage bus to the energy storage direct current charging pile shell, namely the first insulation resistance;
the second control unit is used for controlling the first insulation detection device or the second insulation detection device to be connected with a known resistor, wherein the known resistor is a known resistor required by self insulation detection in the first insulation detection device or the second insulation detection device;
the third control unit is used for acquiring a second control signal and controlling the first insulation detection equipment or the second insulation detection equipment to detect the insulation resistance of the main positive or negative of the high-voltage bus to the energy storage direct current charging pile shell, namely the second insulation resistance;
a determination unit configured to determine whether a positive resistance value of the second insulation resistance is equal to a resistance value of the first insulation resistance value and the known resistance in parallel;
and the determining unit is used for determining that the insulation detection function of the first insulation detection device or the second insulation detection device is normal if the positive resistance value of the second insulation resistance is equal to the resistance value of the first insulation resistance connected in parallel with the known resistance.
5. The apparatus of claim 4, wherein the energy storage DC charging post further comprises: the first control unit is specifically configured to:
determining the received control signal as the first control signal when a switch between the first high voltage device and the second high voltage device is closed.
6. The apparatus according to claim 4, wherein the second control unit is specifically configured to:
and when a switch in the first insulation detection device or the second insulation detection device is closed, determining that the received control signal is the second control signal.
7. A storage medium characterized by comprising a stored program, wherein a device in which the storage medium is located is controlled to execute the offline detection method of the insulation detection function according to any one of claims 1 to 3 when the program is run.
8. An electronic device comprising at least one processor, and at least one memory, bus connected to the processor; the processor and the memory complete mutual communication through the bus; the processor is configured to invoke program instructions in the memory to perform a drop-off detection method of the insulation detection function of any of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110025169.2A CN112858849B (en) | 2021-01-08 | 2021-01-08 | Offline detection method and device with insulation detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110025169.2A CN112858849B (en) | 2021-01-08 | 2021-01-08 | Offline detection method and device with insulation detection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112858849A true CN112858849A (en) | 2021-05-28 |
| CN112858849B CN112858849B (en) | 2023-04-28 |
Family
ID=76005655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110025169.2A Active CN112858849B (en) | 2021-01-08 | 2021-01-08 | Offline detection method and device with insulation detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112858849B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490750A (en) * | 2016-10-21 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Electric vehicle and its insulation detecting method, device and system |
| WO2018202007A1 (en) * | 2017-05-03 | 2018-11-08 | 华为技术有限公司 | Detection circuit and detection method for insulation resistance and device |
| CN109116281A (en) * | 2018-09-25 | 2019-01-01 | 北京长城华冠汽车科技股份有限公司 | A kind of diagnostic system and method for batteries of electric automobile group insulating resistor detecting circuit |
| CN109212385A (en) * | 2017-06-29 | 2019-01-15 | 宝沃汽车（中国）有限公司 | The vehicle circuitry insulation detecting method and device of electric car |
| CN109541420A (en) * | 2018-12-25 | 2019-03-29 | 北京新能源汽车股份有限公司 | A kind of high-pressure system insulation detecting method, device and electric car |
| CN110426556A (en) * | 2019-08-14 | 2019-11-08 | 江铃控股有限公司 | Vehicle megger test method and apparatus |
| CN111060791A (en) * | 2019-12-30 | 2020-04-24 | 华人运通(江苏)技术有限公司 | Insulation fault detection method and device, electric vehicle, terminal equipment and medium |
| CN111157797A (en) * | 2020-03-11 | 2020-05-15 | 上海度普新能源科技有限公司 | Insulation detection circuit and energy storage charging equipment |
| CN111208395A (en) * | 2020-01-16 | 2020-05-29 | 一汽解放汽车有限公司 | Vehicle insulation state detection method and device, vehicle and storage medium |
| CN111208350A (en) * | 2020-03-11 | 2020-05-29 | 上海度普新能源科技有限公司 | Insulation detection circuit and energy storage charging equipment |
-
2021
- 2021-01-08 CN CN202110025169.2A patent/CN112858849B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490750A (en) * | 2016-10-21 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Electric vehicle and its insulation detecting method, device and system |
| WO2018202007A1 (en) * | 2017-05-03 | 2018-11-08 | 华为技术有限公司 | Detection circuit and detection method for insulation resistance and device |
| CN109212385A (en) * | 2017-06-29 | 2019-01-15 | 宝沃汽车（中国）有限公司 | The vehicle circuitry insulation detecting method and device of electric car |
| CN109116281A (en) * | 2018-09-25 | 2019-01-01 | 北京长城华冠汽车科技股份有限公司 | A kind of diagnostic system and method for batteries of electric automobile group insulating resistor detecting circuit |
| CN109541420A (en) * | 2018-12-25 | 2019-03-29 | 北京新能源汽车股份有限公司 | A kind of high-pressure system insulation detecting method, device and electric car |
| CN110426556A (en) * | 2019-08-14 | 2019-11-08 | 江铃控股有限公司 | Vehicle megger test method and apparatus |
| CN111060791A (en) * | 2019-12-30 | 2020-04-24 | 华人运通(江苏)技术有限公司 | Insulation fault detection method and device, electric vehicle, terminal equipment and medium |
| CN111208395A (en) * | 2020-01-16 | 2020-05-29 | 一汽解放汽车有限公司 | Vehicle insulation state detection method and device, vehicle and storage medium |
| CN111157797A (en) * | 2020-03-11 | 2020-05-15 | 上海度普新能源科技有限公司 | Insulation detection circuit and energy storage charging equipment |
| CN111208350A (en) * | 2020-03-11 | 2020-05-29 | 上海度普新能源科技有限公司 | Insulation detection circuit and energy storage charging equipment |
Non-Patent Citations (1)
| Title |
|---|
| 代琪琪 等: "电动汽车蓄电池的绝缘检测", 《现代制造技术与装备》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112858849B (en) | 2023-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20220043067A1 (en) | Charging method and device, charging system, electronic equipment and storage medium | |
| CN110568366B (en) | Insulation circuit, battery pack leakage detection method and hardware detection method | |
| CN110579716B (en) | Battery detection method and device | |
| CN110501645A (en) | Insulation failure detection method, apparatus, electric car and computer storage medium | |
| CN109633458B (en) | Vehicle hardware-in-loop test system and method | |
| CN112406545B (en) | Relay temperature rise monitoring method and device and electric automobile | |
| CN112736302B (en) | Method and device for judging abnormal capacity of battery cell, vehicle and storage medium | |
| CN103280854A (en) | Charging system and charging method for automobile power battery | |
| CN109031138A (en) | A kind of safety evaluation method and device of power battery | |
| TW202218284A (en) | Battery management system for batteries in engine start and deep cycle applications | |
| CN113075563A (en) | Detection method and device for lithium separation of power battery and vehicle | |
| CN115421050A (en) | Method, system, equipment and storage medium for estimating state of health of battery | |
| CN113484777A (en) | Power battery SOC precision testing method and device | |
| CN112858849A (en) | Off-line detection method and device with insulation detection function | |
| CN115603351B (en) | Energy storage system processing method and device, processor and electronic equipment | |
| CN112014068A (en) | Method and device for detecting fiber core of optical cable and computer readable storage medium | |
| CN112644334B (en) | Control method, system, vehicle and storage medium for preventing battery from over-discharging | |
| CN114184959A (en) | Online detection device for storage battery | |
| CN111157902B (en) | Lithium ion battery peak power testing method and system | |
| CN211478544U (en) | BMS protection board test system | |
| CN114050625A (en) | Battery cell charging control method and device, electronic equipment and storage medium | |
| CN112749465A (en) | Method, processor, storage medium, and detection system for detecting electricity theft | |
| CN105978107A (en) | Multi-battery-pack automatic charging and maintenance balance diagnosis system for electric automobile | |
| CN113022312A (en) | Control method for high-voltage power-on, high-voltage power-on circuit and electric vehicle | |
| CN106100063B (en) | A kind of verification method of the portfolio effect of battery pack balancing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240108 Address after: Room 304, 3rd Floor, Building 1, No. 111 Wusongjiang Avenue, Guoxiang Street, Wuzhong District, Suzhou City, Jiangsu Province, 215124 Patentee after: JIANGSU DUPU NEW ENERGY TECHNOLOGY Co.,Ltd. Address before: Room 1001, 10 / F, office building, Shihu Jinling Plaza, 88 Nanxijiang Road, Yuexi, Wuzhong District, Suzhou City, Jiangsu Province, 215128 Patentee before: DuPu (Suzhou) New Energy Technology Co.,Ltd. Patentee before: DuPu (Shanghai) New Energy Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |