CN112394313A - Method and system for processing failure of shunt - Google Patents
Method and system for processing failure of shunt Download PDFInfo
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- CN112394313A CN112394313A CN202011354874.9A CN202011354874A CN112394313A CN 112394313 A CN112394313 A CN 112394313A CN 202011354874 A CN202011354874 A CN 202011354874A CN 112394313 A CN112394313 A CN 112394313A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 84
- 238000003672 processing method Methods 0.000 claims abstract description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The application discloses a shunt failure processing method and system, when a shunt fails, the shunt can be replaced in time only by switching to other shunts, and errors can not occur in data obtained through shunt detection. The method comprises the following steps: the failure detection device detects whether a target shunt in at least two shunts fails, wherein the target shunt is a current shunt; if the target shunt fails, the failure detection device generates a switching instruction; the switching device switches the target shunt to the other shunt of the at least two shunts according to the switching instruction.
Description
Technical Field
The invention relates to the field of electric power, in particular to a method and a system for processing failure of a shunt.
Background
The shunt is an instrument for measuring direct current, and is made according to the principle that when direct current passes through a resistor, voltage is generated at two ends of the resistor. Usually in parallel with the moving coil of a current meter or galvanometer. There are two types of connections, internal and external to the meter.
The shunt can age after long-time use, and the resistance value of shunt drifts, leads to the error value between the current data that obtains through shunt detection and the actual data to increase gradually.
However, the existing diverter needs a technician to replace the diverter after the diverter fails, and if the diverter cannot be replaced immediately when the diverter fails or the diverter is replaced after the diverter fails for a long time, the detection effect is affected, so that errors occur in data obtained by diverter detection.
Disclosure of Invention
The invention aims to provide a shunt failure processing method and a shunt failure processing system, which can be timely replaced by switching to other shunts when a shunt fails, so that data obtained by shunt detection cannot have errors.
The invention provides a shunt failure processing method, which is applied to a shunt failure processing system, wherein the shunt failure processing system comprises at least two shunts, a failure detection device and a switching device, and the method comprises the following steps:
the failure detection device detects whether a target shunt in the at least two shunts fails, wherein the target shunt is a current shunt;
if the target shunt fails, the failure detection device generates a switching instruction;
the switching device switches the target shunt to the other shunt of the at least two shunts according to the switching instruction.
Further, the failure detection device detects whether a target shunt of the at least two shunts fails, including:
the failure detection device detects the current resistance value of the target current divider through preset current/voltage;
the failure detection device acquires the delivery resistance value of the target shunt;
the failure detection device compares whether the current resistance value is larger than the factory resistance value;
if the current shunt is larger than the target shunt, the failure detection device judges that the target shunt fails;
and if not, the failure detection device judges that the target shunt does not fail.
Further, the failure detection device generates a switching instruction, including:
the failure detection device selects a shunt equal to the delivery resistance value from the at least two shunts as a switching shunt according to the delivery resistance value of the target shunt;
and the failure detection device generates a switching instruction according to the switching shunt.
Further, the switching device comprises at least two switching units, and each switching unit corresponds to one current divider;
the switching device switches the target shunt to other of the at least two shunts according to the switching instruction, including:
the switching device determines a corresponding switching shunt according to the switching instruction;
the switching device determines a corresponding switching unit according to the switching shunt;
and the switching device closes the switching unit of the target shunt and opens the switching unit corresponding to the switching shunt.
Further, the method further comprises:
and if the target shunt does not fail, the failure detection device does not generate a switching instruction.
A second aspect of the present invention provides a shunt failure processing apparatus, including:
at least two shunts, a failure detection device and a switching device;
the failure detection device is used for detecting whether a target shunt in the at least two shunts fails, wherein the target shunt is a current shunt;
the failure detection device is further used for generating a switching instruction if the target shunt fails;
the switching device is used for switching the target shunt into other shunt in the at least two shunts according to the switching instruction.
Further, in the above-mentioned case,
the failure detection device is also used for detecting the current resistance value of the target current divider through preset current/voltage;
the failure detection device is also used for acquiring the delivery resistance value of the target shunt;
the failure detection device is further used for comparing whether the current resistance value is larger than the factory resistance value or not, and if so, judging that the target shunt fails; and if not, judging that the target shunt does not fail.
Further, in the above-mentioned case,
the failure detection device is further configured to select a shunt equal to the delivery resistance value from the at least two shunts as a switching shunt according to the delivery resistance value of the target shunt;
the failure detection device is further used for generating a switching instruction according to the switching diverter.
Further, the switching device comprises at least two switching units, and each switching unit corresponds to one current divider;
the switching device is specifically configured to determine a corresponding switching shunt according to the switching instruction;
the switching device is also used for determining a corresponding switching unit according to the switching diverter;
the switching device is further configured to close the switching unit of the target shunt and open the switching unit corresponding to the switching shunt.
Further, in the above-mentioned case,
the failure detection device is further configured to not generate a switching instruction if the target shunt does not fail.
Therefore, in the shunt failure processing method, the failure detection device detects whether a target shunt in the at least two shunts fails, the target shunt is a current shunt, if the target shunt fails, the failure detection device generates a switching instruction, and the switching device switches the target shunt to other shunts in the at least two shunts according to the switching instruction. With current shunt after the inefficacy, need the technical staff to go to change the shunt and compare, only need switch into other shunts when the shunt became invalid and just can in time change for data that obtain through shunt detection can not the error appear.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be 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 described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic flow chart diagram illustrating one embodiment of a diverter failure handling method provided by the present invention;
fig. 2 is a schematic structural diagram of an embodiment of a shunt failure processing system provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, a method for handling a shunt failure according to an embodiment of the present invention includes:
101. the failure detection device detects whether a target shunt in at least two shunts fails, the target shunt is a current shunt, and if the target shunt fails, step 102 is executed;
in this embodiment, the shunt failure processing system includes at least two shunts, a failure detection device and a switching device, the target shunt is a current shunt, the failure detection device detects whether a target shunt of the at least two shunts fails, if the target shunt fails, step 102 is executed, and if the target shunt does not fail, step 102 does not need to be executed.
102. The failure detection device generates a switching instruction;
in this embodiment, the failure detection device needs to replace the failed target shunt, and then needs to generate a switching instruction.
The switching means 103 switches the target splitter to the other of the at least two splitters in accordance with the switching instruction.
In this embodiment, the switching device switches the target splitter to the other splitter of the at least two splitters according to the switching instruction. Other shunts are non-failed shunts.
In the embodiment of the invention, the failure detection device in the shunt failure processing method detects whether a target shunt in the at least two shunts fails, the target shunt is a current shunt, if the target shunt fails, the failure detection device generates a switching instruction, and the switching device switches the target shunt to other shunts in the at least two shunts according to the switching instruction. With current shunt after the inefficacy, need the technical staff to go to change the shunt and compare, only need switch into other shunts when the shunt became invalid and just can in time change for data that obtain through shunt detection can not the error appear.
Optionally, in some embodiments of the present invention, the detecting device detects whether a target shunt of the at least two shunts fails, including:
the failure detection device detects the current resistance value of the target current divider through preset current/voltage;
the failure detection device acquires the delivery resistance value of the target shunt;
the failure detection device compares whether the current resistance value is larger than the factory resistance value;
if so, the failure detection device judges that the target shunt fails;
and if not, the failure detection device judges that the target shunt does not fail.
In the embodiment of the invention, the failure detection device can be connected with two ends of the target shunt through a lead, the current resistance value of the target shunt is detected through the preset current/voltage, the factory resistance value of the target shunt is obtained, whether the current resistance value is larger than the factory resistance value or not is compared, if the current resistance value is larger than the factory resistance value, the target shunt is aged, the resistance value is increased, and then the target shunt is judged to be failed; and if not, judging that the target shunt does not fail.
Optionally, in some embodiments of the present invention, the generating the switching instruction by the failure detection device includes:
the failure detection device selects a shunt equal to the delivery resistance value from at least two shunts as a switching shunt according to the delivery resistance value of the target shunt;
the failure detection device generates a switching instruction according to the switching shunt.
In the embodiment of the present invention, before switching the shunts, different shunts may have different factory resistance values due to different factory settings, and therefore, when switching is performed, shunts before and after switching must have the same resistance value, and therefore, the failure detection apparatus selects a shunt having the same factory resistance value as a switching shunt from among at least two shunts according to the factory resistance value of a target shunt, and generates a switching instruction according to the switching shunt.
Optionally, in some embodiments of the present invention, the switching device includes at least two switching units, and each switching unit corresponds to one shunt;
the switching device switches the target shunt to other shunt of the at least two shunts according to the switching instruction, comprising:
the switching device determines a corresponding switching shunt according to the switching instruction;
the switching device determines a corresponding switching unit according to the switching shunt;
the switching device closes the switching unit of the target shunt and opens the switching unit corresponding to the switching shunt.
In the embodiment of the invention, the switching device comprises at least two switching units, each switching unit corresponds to one shunt, the switching device determines the corresponding switching shunt according to the switching instruction, the switching device determines the corresponding switching unit according to the switching shunt, the switching device closes the switching unit of the target shunt and opens the switching unit corresponding to the switching shunt.
Referring to fig. 2, an embodiment of the invention provides a device for handling a shunt failure, including:
at least two shunts 201, failure detection means 202 and switching means 203;
a failure detection device 202, configured to detect whether a target shunt of the at least two shunts 201 fails, where the target shunt is a currently used shunt;
the failure detection device 202 is further configured to generate a switching instruction if the target shunt fails;
a switching device 203 for switching the target splitter to the other splitter of the at least two splitters 201 according to the switching instruction.
In the embodiment of the present invention, the failure detection device 202 detects whether a target shunt of the at least two shunts fails, the target shunt is a currently used shunt, if the target shunt fails, the failure detection device generates a switching instruction, and the switching device 203 switches the target shunt to another shunt of the at least two shunts according to the switching instruction. With current shunt after the inefficacy, need the technical staff to go to change the shunt and compare, only need switch into other shunts when the shunt became invalid and just can in time change for data that obtain through shunt detection can not the error appear.
Alternatively, in some embodiments of the present invention,
the failure detection device 202 is further used for detecting the current resistance value of the target current divider through preset current/voltage;
the failure detection device 202 is further configured to obtain a factory resistance value of the target shunt;
the failure detection device 202 is further configured to compare whether the current resistance value is greater than a factory resistance value, and if so, determine that the target shunt fails; and if not, judging that the target shunt does not fail.
Alternatively, in some embodiments of the present invention,
the failure detection device 202 is further configured to select, according to the factory resistance value of the target shunt, a shunt equal to the factory resistance value from the at least two shunts as a switching shunt;
the failure detection device 202 is further configured to generate a switching instruction according to the switching shunt.
Optionally, in some embodiments of the present invention, the switching device 203 includes at least two switching units, and each switching unit corresponds to one current divider;
a switching device 203, specifically configured to determine a corresponding switching shunt according to the switching instruction;
the switching device 203 is further used for determining a corresponding switching unit according to the switching shunt;
the switching device 203 is further configured to close the switching unit of the target shunt and open the switching unit corresponding to the switching shunt.
Alternatively, some embodiments of the invention
The failure detection means 202 is further configured to not generate a switching instruction if the target shunt does not fail.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
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 a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A shunt failure processing method is applied to a shunt failure processing system, wherein the shunt failure processing system comprises at least two shunts, a failure detection device and a switching device, and the method comprises the following steps:
the failure detection device detects whether a target shunt in the at least two shunts fails, wherein the target shunt is a current shunt;
if the target shunt fails, the failure detection device generates a switching instruction;
the switching device switches the target shunt to the other shunt of the at least two shunts according to the switching instruction.
2. The method of claim 1, wherein the failure detection device detecting whether a target shunt of the at least two shunts has failed comprises:
the failure detection device detects the current resistance value of the target current divider through preset current/voltage;
the failure detection device acquires the delivery resistance value of the target shunt;
the failure detection device compares whether the current resistance value is larger than the factory resistance value;
if the current shunt is larger than the target shunt, the failure detection device judges that the target shunt fails;
and if not, the failure detection device judges that the target shunt does not fail.
3. The method of claim 1, wherein the failure detection device generates a handover instruction comprising:
the failure detection device selects a shunt equal to the delivery resistance value from the at least two shunts as a switching shunt according to the delivery resistance value of the target shunt;
and the failure detection device generates a switching instruction according to the switching shunt.
4. The method of claim 3, wherein the switching device comprises at least two switching cells, one shunt for each switching cell;
the switching device switches the target shunt to other of the at least two shunts according to the switching instruction, including:
the switching device determines a corresponding switching shunt according to the switching instruction;
the switching device determines a corresponding switching unit according to the switching shunt;
and the switching device closes the switching unit of the target shunt and opens the switching unit corresponding to the switching shunt.
5. The method according to any one of claims 1-4, further comprising:
and if the target shunt does not fail, the failure detection device does not generate a switching instruction.
6. A diverter failure handling device, comprising:
at least two shunts, a failure detection device and a switching device;
the failure detection device is used for detecting whether a target shunt in the at least two shunts fails, wherein the target shunt is a current shunt;
the failure detection device is further used for generating a switching instruction if the target shunt fails;
the switching device is used for switching the target shunt into other shunt in the at least two shunts according to the switching instruction.
7. The apparatus of claim 6,
the failure detection device is also used for detecting the current resistance value of the target current divider through preset current/voltage;
the failure detection device is also used for acquiring the delivery resistance value of the target shunt;
the failure detection device is further used for comparing whether the current resistance value is larger than the factory resistance value or not, and if so, judging that the target shunt fails; and if not, judging that the target shunt does not fail.
8. The apparatus of claim 6,
the failure detection device is further configured to select a shunt equal to the delivery resistance value from the at least two shunts as a switching shunt according to the delivery resistance value of the target shunt;
the failure detection device is further used for generating a switching instruction according to the switching diverter.
9. The apparatus of claim 8, wherein the switching apparatus comprises at least two switching units, one for each shunt;
the switching device is specifically configured to determine a corresponding switching shunt according to the switching instruction;
the switching device is also used for determining a corresponding switching unit according to the switching diverter;
the switching device is further configured to close the switching unit of the target shunt and open the switching unit corresponding to the switching shunt.
10. The apparatus according to any one of claims 6-9,
the failure detection device is further configured to not generate a switching instruction if the target shunt does not fail.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011354874.9A CN112394313A (en) | 2020-11-27 | 2020-11-27 | Method and system for processing failure of shunt |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011354874.9A CN112394313A (en) | 2020-11-27 | 2020-11-27 | Method and system for processing failure of shunt |
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| CN112394313A true CN112394313A (en) | 2021-02-23 |
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| CN202011354874.9A Pending CN112394313A (en) | 2020-11-27 | 2020-11-27 | Method and system for processing failure of shunt |
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| CN105612097A (en) * | 2014-09-17 | 2016-05-25 | 日本精工株式会社 | Electric power steering device |
| CN107453956A (en) * | 2017-09-15 | 2017-12-08 | 北京百卓网络技术有限公司 | The method of communications network system, diverter device and its fast access into network |
| CN109948168A (en) * | 2017-12-20 | 2019-06-28 | 北京长城华冠汽车科技股份有限公司 | Current divider failure prediction method |
| CN111562450A (en) * | 2019-02-14 | 2020-08-21 | 株洲中车时代电气股份有限公司 | System and method for monitoring service life of reactor |
| CN111796614A (en) * | 2020-04-02 | 2020-10-20 | 上海旺山实业有限公司 | Temperature control protection device for PTC and NTC heating wire |
| CN211718384U (en) * | 2019-11-20 | 2020-10-20 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Loop resistance tester |
-
2020
- 2020-11-27 CN CN202011354874.9A patent/CN112394313A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000012534A (en) * | 1999-12-10 | 2000-03-06 | 조현복 | Resistance element tester |
| CN105612097A (en) * | 2014-09-17 | 2016-05-25 | 日本精工株式会社 | Electric power steering device |
| CN107453956A (en) * | 2017-09-15 | 2017-12-08 | 北京百卓网络技术有限公司 | The method of communications network system, diverter device and its fast access into network |
| CN109948168A (en) * | 2017-12-20 | 2019-06-28 | 北京长城华冠汽车科技股份有限公司 | Current divider failure prediction method |
| CN111562450A (en) * | 2019-02-14 | 2020-08-21 | 株洲中车时代电气股份有限公司 | System and method for monitoring service life of reactor |
| CN211718384U (en) * | 2019-11-20 | 2020-10-20 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Loop resistance tester |
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