CN113884951B - Capacitive element monitoring method, device and system - Google Patents
Capacitive element monitoring method, device and system Download PDFInfo
- Publication number
- CN113884951B CN113884951B CN202111231523.3A CN202111231523A CN113884951B CN 113884951 B CN113884951 B CN 113884951B CN 202111231523 A CN202111231523 A CN 202111231523A CN 113884951 B CN113884951 B CN 113884951B
- Authority
- CN
- China
- Prior art keywords
- shock wave
- capacitive
- information
- capacitor
- wave detection
- 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.)
- Active
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000035939 shock Effects 0.000 claims abstract description 161
- 239000003990 capacitor Substances 0.000 claims abstract description 126
- 238000001514 detection method Methods 0.000 claims abstract description 57
- 238000012545 processing Methods 0.000 claims abstract description 41
- 238000012806 monitoring device Methods 0.000 claims description 19
- 238000012423 maintenance Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 description 13
- 230000008859 change Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/64—Testing of capacitors
Abstract
The invention discloses a method, a device and a system for monitoring a capacitive element. The capacitive element monitoring method is used for capacitive element monitoring equipment, the capacitive element monitoring equipment comprises a shock wave detection element and a processing module, and the shock wave detection element is used for being installed on a capacitive unit so as to detect shock wave information generated by the capacitive unit; the processing module is electrically connected with the shock wave detection element; the method comprises the following steps: acquiring the shock wave information of the capacitor unit, which is detected by the shock wave detection element; and determining a fault condition of the capacitor unit based on the shock wave information. Through adopting above-mentioned scheme, realize comparatively high-efficient to the on-line monitoring of electric capacity unit and can in time and accurate discovery electric capacity unit fault condition's effect, improved the reliability of on-line monitoring simultaneously.
Description
Technical Field
The embodiment of the invention relates to a capacitance monitoring technology, in particular to a capacitance element monitoring method, device and system.
Background
At present, a frame type capacitor bank of a power system is composed of a plurality of capacitor units, the inside of each capacitor unit comprises a plurality of capacitor elements, and a typical defect of the capacitor bank in daily operation is that the capacitor elements in the capacitor units break down to change capacitance, and when capacitor breakdown is accumulated to a certain amount, unbalanced protection action tripping of the capacitor bank occurs. In order to detect the fault unit, an on-site power failure checking test is required to be arranged to detect the capacitance change condition of the capacitor units, and particularly for the 35kV and above parallel frame type capacitor banks, the on-site detection workload is very large because the number of the capacitor units of one capacitor bank is generally 120 or above. Therefore, the on-line monitoring of the capacitor bank is carried out, and the method has important significance. At present, the main method for online monitoring of the capacitor bank is to monitor the change condition of the voltage and the current of the capacitor bank, and because the harmonic voltage and the harmonic current commonly exist in reactive equipment, the method for monitoring the voltage and the current is adopted, the algorithm requirement is high, the fault of the capacitor bank is difficult to discover in time, a fault capacitor unit cannot be discovered in time and accurately, and targeted overhaul and maintenance are carried out.
Disclosure of Invention
The invention provides a method, a device and a system for monitoring a capacitive element, which are used for realizing the effects that the on-line monitoring of a capacitive unit is more efficient, and the fault condition of the capacitive unit can be timely and accurately found.
In a first aspect, an embodiment of the present invention provides a capacitive element monitoring method, where the capacitive element monitoring method is used for capacitor monitoring, and the capacitive element monitoring device includes a shock wave detection element and a processing module, where the shock wave detection element is used for being installed on a capacitive unit to detect shock wave information generated by the capacitive unit; the processing module is electrically connected with the shock wave detection element; the method comprises the following steps:
Acquiring the shock wave information of the capacitor unit, which is detected by the shock wave detection element;
And determining a fault condition of the capacitor unit based on the shock wave information.
In an alternative embodiment of the present invention, the determining a fault condition of the capacitive unit based on the shock wave information includes:
determining the occurrence times of the shock waves based on the shock wave information;
and determining the fault condition of the capacitor unit based on the occurrence times of the shock waves.
In an alternative embodiment of the present invention, the determining the fault condition of the capacitor unit based on the number of times of occurrence of the shock wave includes:
determining whether the occurrence times of the shock waves are larger than preset fault times;
if yes, determining that the capacitor unit is suspected to be faulty.
In an optional embodiment of the invention, after determining that the capacitor unit is suspected of being faulty, the method includes:
And sending early warning information to the mobile terminal of the operation and maintenance personnel.
In an alternative embodiment of the present invention, the number of the shock wave detecting elements is plural, and the plural shock wave detecting elements are respectively arranged on the plural capacitor units in a one-to-one correspondence manner; the method further comprises the steps of:
Obtaining the serial number information of the shock wave detection elements obtained by numbering the shock wave detection elements;
Accordingly, the determining the fault condition of the capacitor unit based on the shock wave information includes:
And determining different fault conditions of a plurality of the capacitor units based on the shock wave information and the shock wave detection element number information.
In a second aspect, an embodiment of the present invention further provides a capacitive element monitoring apparatus, including a shock wave detection element and a processing module;
The shock wave detection element is used for being arranged on the capacitive unit of the frame type capacitor bank so as to detect shock wave information generated by the capacitive unit;
the processing module is electrically connected with the shock wave detection element, and the processing module is used for executing the capacitive element monitoring method according to any embodiment of the invention.
In an alternative embodiment of the invention, the shock wave detecting element comprises a shock wave sensor.
In an alternative embodiment of the present invention, the system further comprises a recording module;
The recording module is connected between the shock wave detection element and the processing module and is used for recording wave crest information of the shock wave detection element and sending the wave crest information to the processing module;
The processing module is used for determining the occurrence times of the shock waves based on the wave crest information.
In a third aspect, an embodiment of the present invention further provides a capacitive element monitoring system, where the capacitive element monitoring system includes a capacitive unit and a capacitive element monitoring device according to any one of the embodiments of the present invention.
In an alternative embodiment of the present invention, the number of the capacitor units is plural, and plural capacitor units are connected in parallel or in series to form a capacitor bank.
According to the invention, the shock wave detection element is arranged on the capacitor unit, so that the shock wave information of the capacitor unit detected by the shock wave detection element is obtained, and finally, the fault condition of the capacitor unit is determined based on the shock wave information, so that the effects of high efficiency in online monitoring of the capacitor unit and timely and accurately finding the fault condition of the capacitor unit can be realized, and the record is carried out by adopting the acoustic principle, so that the anti-interference capability is high in a complex electromagnetic environment, and the reliability level of an online monitoring system is effectively ensured.
Drawings
Fig. 1 is a schematic structural diagram of a capacitive element monitoring device and a capacitive unit connected to each other according to a first embodiment of the present invention;
Fig. 2 is a flowchart of a method for monitoring a capacitive element according to a first embodiment of the present invention;
fig. 3 is a flowchart of step S120 of determining a fault condition of the capacitor unit based on the shock wave information according to the first embodiment of the present invention;
Fig. 4 is a flowchart of determining a fault condition of the capacitor unit based on the number of times of occurrence of the shock wave in step S122 according to the first embodiment of the present invention;
fig. 5 is a flowchart of a method for monitoring a capacitive element according to a second embodiment of the present invention;
fig. 6 is a flowchart of a method for monitoring a capacitive element according to a third embodiment of the present invention;
fig. 7 is a schematic structural diagram of another capacitive element monitoring device according to the fourth embodiment of the present invention.
Wherein, 1, the shock wave detects the component; 2. a capacitor unit; 3. a processing module; 4. and a recording module.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Example 1
Fig. 1 is a schematic structural diagram of a capacitive element monitoring device and a capacitive unit connected to each other according to a first embodiment of the present invention; fig. 2 is a flowchart of a capacitive element monitoring method according to a first embodiment of the present invention, where the method may be applied to a power frame type capacitor bank monitoring situation or an on-line monitoring situation of a single capacitive element, and the method may be performed by a capacitive element monitoring device, as shown in fig. 1, where the capacitive element monitoring device includes a shock wave detecting element and a processing module, where the shock wave detecting element is configured to be installed on a capacitive element to detect shock wave information generated by the capacitive element; the processing module is electrically connected with the shock wave detection element; as shown in fig. 2, the method for monitoring a capacitive element specifically includes the following steps:
S110, acquiring the shock wave information of the capacitor unit, which is detected by the shock wave detection element.
The shock wave detection element is an element capable of detecting a shock wave, and the capacitance means is a unit including a plurality of capacitors. The shock wave information refers to information about the shock wave generated by the capacitive unit. In a specific embodiment, the shock wave detecting element may be mounted on the housing of the capacitive unit, so that shock wave information of the capacitive unit can be detected more accurately.
S120, determining the fault condition of the capacitor unit based on the shock wave information.
In order to accurately monitor the fault capacitor unit, it is necessary to analyze the fault occurrence process of the capacitor. The capacitance change is caused by the breakdown of the internal capacitor, and when the internal capacitor breaks down, a direct-current voltage is generated due to the energy storage on the intact capacitor and is superposed on the fault capacitor, so that a certain overvoltage phenomenon is generated, and the internal fuse connected with the fault capacitor in series is fused under the overvoltage, so that the purpose of isolating the fault element is achieved. In the process of internal fuse blowing, the deep physical cause is that copper wires are subjected to electric explosion, and a metal wire explosion phenomenon occurs in the impregnating solution of the capacitor unit, so that a strong shock wave phenomenon can be generated. Compared with chemical explosion, copper wire electric explosion is a physical explosion and is characterized by short explosion process (generally in microsecond level), rapid expansion and rapid flattening of explosion products, and finally the external shock wave is steep in front edge and high in amplitude, but the pressure is rapidly reduced after the wave front. Thus, by means of the shockwave information of the capacitive unit, a fault situation of the capacitive unit can be determined.
According to the scheme, the shock wave detection element is arranged on the capacitor unit, shock wave information of the capacitor unit detected by the shock wave detection element is obtained, finally, the fault condition of the capacitor unit is determined based on the shock wave information, the effects that the capacitor unit is monitored more efficiently on line and the fault condition of the capacitor unit can be found timely and accurately can be achieved, and because the acoustic principle is adopted for recording, the anti-interference capability is high in a complex electromagnetic environment, and the reliable level of an on-line monitoring system is effectively ensured.
Fig. 3 is a flowchart of a step S120 of determining a fault condition of the capacitor unit based on the shock wave information according to a first embodiment of the present invention, as shown in fig. 3, the step S120 of determining a fault condition of the capacitor unit based on the shock wave information includes:
S121, determining the occurrence times of the shock waves based on the shock wave information.
The number of times of shock wave generation refers to the number of times of shock wave generation in the capacitor unit.
S122, determining the fault condition of the capacitor unit based on the occurrence times of the shock waves.
The capacitor unit generally comprises a plurality of capacitor elements, and the capacitor unit generally has a certain fault tolerance value, namely, the performance of the whole capacitor unit is not affected when a small number of capacitor elements are damaged, the capacitor unit is only damaged when the number of capacitor elements is excessive, and a fuse explosion is usually generated when a single capacitor element is damaged, namely, a shock wave is generated, so that the fault condition of the capacitor unit can be accurately judged by determining the occurrence times of the shock wave.
Fig. 4 is a flowchart of a step S122 of determining a fault condition of the capacitor unit based on the number of times of occurrence of the shock wave according to the first embodiment of the present invention; as shown in fig. 4, S122, the determining, based on the number of times of occurrence of the shock wave, a fault condition of the capacitor unit includes:
s1221, determining whether the occurrence frequency of the shock wave is larger than a preset failure frequency.
If yes, go to step S1222.
S1222, determining suspected faults of the capacitor unit.
The preset failure times refer to the allowable maximum damage number of the capacitor when the capacitor unit still can normally operate. According to the different manufacturers of the capacitor units, the fault tolerance rate is correspondingly different, through the preset fault times, the suspected faults of the capacitor units are determined when the occurrence times of the shock waves are larger than the preset fault times, the requirements of different capacitor units can be conveniently matched, and the fault condition of the capacitor units can be accurately judged.
Example two
Fig. 5 is a flowchart of a capacitive element monitoring method according to a second embodiment of the present invention, which is optimized based on the first embodiment. Optionally, after determining that the capacitor unit is suspected of being faulty, the method includes: and sending early warning information to the mobile terminal of the operation and maintenance personnel.
As shown in fig. 5, the method includes:
S210, acquiring the shock wave information of the capacitor unit, which is detected by the shock wave detection element.
S220, determining the occurrence times of the shock waves based on the shock wave information.
S230, determining whether the occurrence times of the shock waves are larger than preset failure times.
If yes, go to steps S240 and S250.
S240, determining suspected faults of the capacitor unit.
S250, sending early warning information to the mobile terminal of the operation and maintenance personnel.
The early warning information refers to information representing that the capacitor unit may have a fault, and the content of the early warning information may include some identification information of the capacitor unit, fault conditions, and the like, such as the number of times of occurrence of shock waves, the position of the capacitor unit, and the like. The operation and maintenance personnel refer to staff for equipment operation and maintenance, the mobile terminal or the mobile communication terminal refers to computer equipment which can be used in movement, and the broad sense includes mobile phones, notebooks, tablet computers, POS machines and even vehicle-mounted computers. But in most cases refers to cell phones or smart phones with multiple application functions and tablet computers.
Through sending early warning information to fortune dimension personnel mobile terminal, the fortune dimension personnel of being convenient for in time learn the trouble condition of electric capacity unit, through carrying out timely power failure detection and change trouble electric capacity unit, realize the accurate detection of electric capacity unit.
Example III
Fig. 6 is a flowchart of a capacitive element monitoring method according to a third embodiment of the present invention, which is optimized based on the first embodiment. Optionally, the number of the shock wave detecting elements is multiple, and the multiple shock wave detecting elements are respectively arranged on the multiple capacitor units in a one-to-one correspondence manner; the method further comprises the steps of: obtaining the serial number information of the shock wave detection elements obtained by numbering the shock wave detection elements; accordingly, the determining the fault condition of the capacitor unit based on the shock wave information includes: and determining different fault conditions of a plurality of the capacitor units based on the shock wave information and the shock wave detection element number information.
As shown in fig. 6, the method includes:
s310, acquiring the shock wave information of the capacitor unit, which is detected by the shock wave detection element.
S320, obtaining the serial number information of the shock wave detection elements obtained by numbering the shock wave detection elements.
The plurality of the shock wave detection elements are arranged in a one-to-one correspondence with the capacitor units, so that the plurality of shock wave detection elements can detect the fault condition of different capacitor units. The number information of the shock wave detecting element is a number which is assigned to the shock wave detecting element in a specific order by using any orderly or unordered symbol and is convenient to identify. S330, determining different fault conditions of a plurality of the capacitor units based on the shock wave information and the shock wave detection element number information.
The shock wave detection elements are numbered, so that different shock wave information detected by the shock wave detection elements can be conveniently determined, and further, different shock wave information generated by different capacitance units can be conveniently determined. For example, in a specific embodiment, a plurality of capacitor units form a parallel frame-type capacitor bank, a plurality of shock wave detecting elements are respectively arranged on the plurality of capacitor units in a one-to-one correspondence manner, and the shock wave occurrence conditions in the plurality of capacitor units are recorded in real time by numbering the shock wave detecting elements, so that the capacitor units which are in failure can be accurately positioned through the serial number information of the shock wave detecting elements when the capacitor bank is in failure, and maintenance processing is performed in a targeted manner.
Example IV
A fourth embodiment of the present invention provides a capacitive element monitoring apparatus, as shown in fig. 1, which includes a shock wave detecting element 1 and a processing module 3;
the shock wave detecting element 1 is configured to be mounted on the capacitive unit 2 to detect shock wave information generated by the capacitive unit 2.
The processing module 3 is electrically connected to the shock wave detecting element 1, and the processing module 3 is used for executing the capacitive element monitoring method according to any embodiment of the present invention.
The processing module 3 executes various functional applications and data processing of the capacitive element monitoring device by running and storing internal software programs, instructions and modules, namely, the capacitive element monitoring method is realized. In a specific embodiment, the processing module 3 may include a processor, where the processor is generally referred to as a Central Processing Unit (CPU), and the central processing unit (central processing unit, abbreviated as CPU) is used as an operation and control core of the computer system, and is a final execution unit for information processing and program running.
In a specific embodiment, the processing module 3 may include a computer (computer) which is a modern electronic computing machine for high-speed computing, may perform numerical computation, may perform logic computation, and has a memory function. The intelligent electronic device is modern intelligent electronic equipment which can automatically and rapidly process mass data according to program operation. By having the processing module include a computer, the capacitive element monitoring method of any of the embodiments of the present invention can be conveniently performed.
According to the scheme, the shock wave detection element 1 is arranged on the capacitor unit 2, the processing module 3 acquires shock wave information of the capacitor unit 2 detected by the shock wave detection element 1, and determines the fault condition of the capacitor unit 2 based on the shock wave information, so that the on-line monitoring and fault positioning of the capacitor can be efficiently realized, and the reliable level of an on-line monitoring system is effectively ensured due to the fact that the on-line monitoring and fault positioning are recorded by adopting an acoustic principle and the anti-interference capability is high in a complex electromagnetic environment.
Illustratively, the shock wave detecting element 1 comprises a shock wave sensor.
The shock wave sensor is a device capable of changing the shock wave variation amount inside the capacitor unit 2 to a range of electric quantity variation values. In a specific embodiment, the shock wave sensor comprises a piezoelectric pressure sensor and/or a piezoresistive pressure sensor, and both sensors are widely used due to their wide use band and high sensitivity.
In an alternative embodiment of the present invention, fig. 7 is a schematic structural diagram of another capacitive element monitoring device provided in the fourth embodiment of the present invention, where the capacitive element monitoring device further includes a recording module 4; the recording module 4 is connected between the shock wave detection element 1 and the processing module 3, and is used for recording wave crest information of the shock wave detection element 1 and sending the wave crest information to the processing module 3; the processing module 3 is configured to determine the number of times of occurrence of the shock wave based on the peak information.
Wherein peak information refers to information about the peak of the shock wave. For example, information of the first peak may be included. The recording module 4 is a module capable of performing signal processing on the information of the shock wave detected by the shock wave detecting element 1 and recording the peak information of the shock wave. When the wave peak information comprises the first wave peak of the shock wave, the recording module 4 is configured to record the first wave peak of the shock wave detecting element 1, and then send the relevant content of the first wave peak to the processing module 3 for counting. Compared with chemical explosion, copper wire electric explosion is a physical explosion and is characterized in that the explosion process is short (generally in microsecond level), explosion products expand rapidly and quickly and tend to be gentle, the finally external shock wave is steep in front edge and high in amplitude, but the pressure after the wave front is quickly reduced, and therefore the processing module 3 can accurately record the occurrence times of the shock wave by acquiring the first wave peak information of the shock wave.
Example five
The fifth embodiment of the present invention further provides a capacitive element monitoring system, as shown in fig. 7, which includes the capacitive unit 2 and the capacitive element monitoring device according to any embodiment of the present invention.
According to the scheme, the shock wave detection element 1 of the capacitance monitoring device is arranged on the capacitance unit 2, then the processing module 3 of the capacitance monitoring device acquires shock wave information of the capacitance unit 2 detected by the shock wave detection element 1, and determines the fault condition of the capacitance unit 2 based on the shock wave information, so that the on-line monitoring and fault positioning of the capacitor bank can be efficiently realized, and the recording is performed by adopting the acoustic principle, so that the anti-interference capability is high in a complex electromagnetic environment, and the reliability level of an on-line monitoring system is powerfully ensured.
In an alternative embodiment of the invention, the number of the capacitor units 2 is plural, and the plural capacitor units 2 are connected in parallel or in series to constitute a capacitor bank.
The capacitor units 2 are connected in parallel or in series to form the capacitor bank, so that the fault capacitor unit 2 can be timely and accurately found when a certain capacitor unit 2 fails through monitoring the capacitor units 2, and targeted overhaul and maintenance can be performed. Therefore, the fault of the capacitor bank can be found in time, and the fault capacitor unit 2 of the capacitor bank can be accurately positioned.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (8)
1. A capacitive element monitoring method, characterized in that the method is used for a capacitive element monitoring device, the capacitive element monitoring device comprises a shock wave detection element and a processing module, the shock wave detection element is used for being installed on a capacitive unit to detect shock wave information generated by the capacitive unit; the processing module is electrically connected with the shock wave detection element; the method comprises the following steps:
acquiring the shock wave information of the capacitor unit detected by the shock wave detection element, wherein the capacitor unit comprises a plurality of capacitors;
Determining a fault condition of the capacitive unit based on the shockwave information;
the determining a fault condition of the capacitive unit based on the shock wave information includes:
determining peak information based on the shock wave information;
Determining the occurrence times of the shock waves based on the wave crest information;
determining whether the occurrence times of the shock waves are larger than preset fault times;
if yes, determining that the capacitor unit is suspected to be faulty.
2. The method of claim 1, wherein after determining that the capacitive element is suspected of being faulty, comprising:
And sending early warning information to the mobile terminal of the operation and maintenance personnel.
3. The method for monitoring capacitive elements according to claim 1 or 2, wherein the number of the shock wave detecting elements is plural, and the plural shock wave detecting elements are respectively provided for being mounted on the plural capacitive units in one-to-one correspondence; the method further comprises the steps of:
Obtaining the serial number information of the shock wave detection elements obtained by numbering the shock wave detection elements;
Accordingly, the determining the fault condition of the capacitor unit based on the shock wave information includes:
And determining different fault conditions of a plurality of the capacitor units based on the shock wave information and the shock wave detection element number information.
4. A capacitive element monitoring device characterized by comprising a shock wave detection element (1) and a processing module (3);
The shock wave detection element (1) is used for being installed on the capacitor unit (2) so as to detect shock wave information generated by the capacitor unit (2);
The processing module (3) and the shock wave detection element (1) are electrically connected, the processing module (3) being adapted to perform the capacitive element monitoring method of any of claims 1-3.
5. Capacitive element monitoring device according to claim 4, characterized in that the shock wave detection element (1) comprises a shock wave sensor.
6. The capacitive element monitoring device according to claim 4 or 5, further comprising a recording module (4);
The recording module (4) is connected between the shock wave detection element (1) and the processing module (3) and is used for recording wave crest information of the shock wave detection element (1) and sending the wave crest information to the processing module (3);
the processing module (3) is used for determining the occurrence times of the shock waves based on the wave crest information.
7. A capacitive element monitoring system characterized by comprising a capacitive unit (2) and a capacitive element monitoring device as claimed in any of claims 4-6.
8. The capacitive element monitoring system according to claim 7, characterized in that the number of the capacitive units (2) is plural, and a plurality of the capacitive units (2) are connected in parallel or in series to constitute a capacitor group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111231523.3A CN113884951B (en) | 2021-10-22 | 2021-10-22 | Capacitive element monitoring method, device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111231523.3A CN113884951B (en) | 2021-10-22 | 2021-10-22 | Capacitive element monitoring method, device and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113884951A CN113884951A (en) | 2022-01-04 |
| CN113884951B true CN113884951B (en) | 2024-04-30 |
Family
ID=79004145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111231523.3A Active CN113884951B (en) | 2021-10-22 | 2021-10-22 | Capacitive element monitoring method, device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113884951B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1579082A (en) * | 1968-06-25 | 1969-08-22 | ||
| WO2002023221A3 (en) * | 2000-09-13 | 2002-08-01 | Serco Ltd | Method and apparatus for identifying the source of an impulsive or explosive event |
| CN103412193A (en) * | 2013-08-06 | 2013-11-27 | 国家电网公司 | Capacitance online monitoring device for parallel capacitor |
| CN103543395A (en) * | 2013-10-30 | 2014-01-29 | 沈阳变压器研究院股份有限公司 | System and method for testing lightning impulse of electrical device |
| CN104914360A (en) * | 2015-05-20 | 2015-09-16 | 朱继红 | Vibration monitoring device and vibration monitoring method for capacitor element breakdown |
| CN206489227U (en) * | 2016-12-27 | 2017-09-12 | 贵州电网有限责任公司毕节供电局 | High-voltage capacitor fault test system |
| CN111157861A (en) * | 2020-01-20 | 2020-05-15 | 南方电网科学研究院有限责任公司 | Heavy current electric arc shock wave detection system |
| CN111239572A (en) * | 2020-03-27 | 2020-06-05 | 安徽中普防雷科技有限公司 | On-line monitoring method and system for lightning protection facility SPD |
| CN113391151A (en) * | 2021-06-11 | 2021-09-14 | 江苏法拉电子有限公司 | Capacitor quality inspection system based on large current impact |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017023186A1 (en) * | 2015-08-06 | 2017-02-09 | Ventora Technologies Ag | Method and device for sonochemical treatment of well and reservoir |
-
2021
- 2021-10-22 CN CN202111231523.3A patent/CN113884951B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1579082A (en) * | 1968-06-25 | 1969-08-22 | ||
| WO2002023221A3 (en) * | 2000-09-13 | 2002-08-01 | Serco Ltd | Method and apparatus for identifying the source of an impulsive or explosive event |
| CN103412193A (en) * | 2013-08-06 | 2013-11-27 | 国家电网公司 | Capacitance online monitoring device for parallel capacitor |
| CN103543395A (en) * | 2013-10-30 | 2014-01-29 | 沈阳变压器研究院股份有限公司 | System and method for testing lightning impulse of electrical device |
| CN104914360A (en) * | 2015-05-20 | 2015-09-16 | 朱继红 | Vibration monitoring device and vibration monitoring method for capacitor element breakdown |
| CN206489227U (en) * | 2016-12-27 | 2017-09-12 | 贵州电网有限责任公司毕节供电局 | High-voltage capacitor fault test system |
| CN111157861A (en) * | 2020-01-20 | 2020-05-15 | 南方电网科学研究院有限责任公司 | Heavy current electric arc shock wave detection system |
| CN111239572A (en) * | 2020-03-27 | 2020-06-05 | 安徽中普防雷科技有限公司 | On-line monitoring method and system for lightning protection facility SPD |
| CN113391151A (en) * | 2021-06-11 | 2021-09-14 | 江苏法拉电子有限公司 | Capacitor quality inspection system based on large current impact |
Non-Patent Citations (3)
| Title |
|---|
| Ai-cheng ZOU,et al..《机床与液压》.2014,第42卷(第18期),第80-82,116页. * |
| 激光动态柔性微成形实验与数值模拟研究;沈宗宝;《中国博士学位论文全文数据库 工程科技Ⅰ辑》(第01期);第B022-104页 * |
| 穆淑云 等.高压内熔丝全膜并联电容器耐爆试验的分析研究.电力电容器与无功补偿.2011,第32卷(第04期),第42-47页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113884951A (en) | 2022-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103328991B (en) | The method and apparatus that in Capacitor banks, internal fault detects is connected for Y-Y | |
| CN107831422B (en) | GIS equipment partial discharge diagnosis method and system | |
| US9092026B2 (en) | Remote monitoring apparatus | |
| CN108802554B (en) | Capacitor leakage abnormity detection method and system and computer equipment | |
| CN208459507U (en) | Arrester online monitoring system | |
| KR101859068B1 (en) | Appratus for detecting electric power line state | |
| CN106773993A (en) | Field data acquiring terminal and system | |
| CN105321039B (en) | Online monitoring data management system and method for isolating switch | |
| CN109142963B (en) | Interturn short circuit fault positioning system and method | |
| CN109239489A (en) | A kind of health status on-line analysis, device and medium for energy-storage system | |
| CN208537658U (en) | A kind of intelligent reminding anticreeping fire alarm system | |
| CN201490710U (en) | Intelligent monitoring type surge protector | |
| CN112345865A (en) | Power capacitor running state online evaluation early warning device and method | |
| CN106152980B (en) | A kind of deformation of transformer winding detection method and system | |
| CN113884951B (en) | Capacitive element monitoring method, device and system | |
| CN202421448U (en) | Relay detecting device for nuclear power stations | |
| CN112710937B (en) | System and method for monitoring running state of capacitor bank | |
| CN101625651B (en) | Data wire detection method/device and address wire detection method/device | |
| CN104063308B (en) | The verification method and device of data | |
| CN205353294U (en) | Fault electric arc detecting device's test equipment | |
| CN103412230A (en) | High-voltage capacitive apparatus insulation fault detection method | |
| CN114329108B (en) | Production condition analysis method and system based on chip functional circuit simulation test | |
| KR20230013423A (en) | Fire Preventive and Diagnostic System for Battery | |
| CN110286289B (en) | Filtering method for vibration and sound detection signal of transformer | |
| CN104914360A (en) | Vibration monitoring device and vibration monitoring method for capacitor element breakdown |
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 |