CN109143060A - A kind of disconnecting switch location status monitoring system and its monitoring method - Google Patents
A kind of disconnecting switch location status monitoring system and its monitoring method Download PDFInfo
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- CN109143060A CN109143060A CN201811226275.1A CN201811226275A CN109143060A CN 109143060 A CN109143060 A CN 109143060A CN 201811226275 A CN201811226275 A CN 201811226275A CN 109143060 A CN109143060 A CN 109143060A
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- disconnecting switch
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- main shaft
- isolation switch
- current value
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
- G01R31/3274—Details related to measuring, e.g. sensing, displaying or computing; Measuring of variables related to the contact pieces, e.g. wear, position or resistance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The present invention relates to a kind of disconnecting switch location status monitoring method, the separating brake of disconnecting switch, feed motion are by transmission mechanism control, this method comprises: passing through the attitudes vibration of attitude transducer real-time monitoring transmission mechanism；According to the division state of attitudes vibration detection and isolation switch contact.The invention has the benefit that being monitored by the motion state to disconnecting switch main shaft, the fixation movement travel of mounted isolation switch contact is monitored, come whether detection and isolation switch opens and closes in place with this, not only accuracy of judgement is reliable but also is not required to the participation of very important person and further saves labour and cost of labor for this process.
Description
Technical field
The invention belongs to disconnecting switch to monitor field automatically, and in particular to a kind of disconnecting switch location status monitoring system and
Its monitoring method.
Background technique
With the progress of power grid upgrading and the popularization of Substation Automation System, unwatched substation is increasingly
More, current unattended substation generally includes comprehensive automation system of transformer substation, and error proof locking system of microcomputer, part become
Power station also has fire-proof and theft-proof system etc..
Disconnecting switch is extremely important, primary equipment that quantity is most in substation, therefore to the shape of disconnecting switch contact
State monitoring and whether accurate judgement closure is completely successful and the health status of disconnecting switch etc., just seems very important.But
It still needs to send someone to various states and performance of the scene to disconnecting switch to be monitored and measure at present, automatization level is relatively high
Substation generallys use supplementary means of the video monitoring as detection and isolation switch divide-shut brake state in place, but video monitoring exists
Only not in place to part coincidence/position excessively is effective, is also easy to by subjective human factor, angle, clarity, dirt and weather shadow
It rings.
Therefore, can more accurately monitor to the state of disconnecting switch be those skilled in the art's urgent need to resolve
Problem.
Summary of the invention
In order to solve the problems, such as that disconnecting switch location status of the existing technology monitoring accuracy, reliability are low, this hair
It is bright to provide a kind of disconnecting switch location status monitoring device and its monitoring method, with location status accuracy of judgement, conveniently
The features such as operation.
A kind of disconnecting switch location status monitoring method of specific embodiment according to the present invention, the disconnecting switch
Separating brake, feed motion by transmission mechanism control, this method comprises:
Pass through the attitudes vibration of transmission mechanism described in attitude transducer real-time monitoring；
The division state of the isolation switch contact is judged according to the attitudes vibration.
Further, the transmission mechanism includes the main shaft for driving the isolation switch contact, if according to institute
It states attitudes vibration and judges that the isolation switch contact is in "on" position, the method also includes:
The temperature information of the isolation switch contact junction is obtained, and is kept apart according to temperature information judgement
Whether close has electric current to pass through.
The degree of oxidation that curve judges the isolation switch contact is changed over time according to temperature.
Further, acceleration, rotation angle and the isolation when attitudes vibration includes main shaft movement
Displacement of switch contact during division, the division state that the isolation switch contact is judged according to the attitudes vibration
Include:
The compression degree of the contact is judged according to the acceleration；
The rotation angle of the main shaft is measured according to the rotation angle.
Further, the disconnecting switch location status monitoring method further include: obtain the main shaft driving motor
The current value of coil, and judge according to current-vs-time change curve the motion state of the main shaft.
Further, the disconnecting switch location status monitoring method further include: the temperature information that will acquire, described
Acceleration, the rotation angle, the displacement and current-vs-time change curve are stored as reference value.
Further, the disconnecting switch location status monitoring method further include: if the presently described current value obtained is big
Then it is judged as that current value is excessive in the reference current value of the storage, there are Catons for the main shaft.
Further, the disconnecting switch location status monitoring method further include: if the current current value obtained
Duration be greater than the storage reference current value existing for the time be then judged as folding speed reduce.
Further, the disconnecting switch location status monitoring method further include: if the presently described current value obtained
It is zero to be judged as the driving motor there are failures.
A kind of disconnecting switch location status of specific embodiment according to the present invention monitors system, comprising:
Front end attitude transducer, the front end attitude transducer are used to obtain the position of disconnecting switch main shaft and contact
Information；And
Central processing unit, the central processing unit judge the division of the isolation switch contact according to the positional information
State.
Further, the disconnecting switch location status monitors system further include: temperature sensor, the temperature sensor
For obtaining the temperature information of the contact, and send it to the central processing unit, so as to the central processing unit according to
The temperature information judges whether the disconnecting switch has electric current to pass through.
The invention has the benefit that be monitored by the motion state to disconnecting switch main shaft, to installing
The fixation movement travel of isolation switch contact be monitored, come whether detection and isolation switch opens and closes in place with this, this process is not
Only accuracy of judgement is reliable and is not required to the participation of very important person and further saves labour and cost of labor.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow chart one of the disconnecting switch location status monitoring method proposed according to an exemplary embodiment；
Fig. 2 is the flowchart 2 of the disconnecting switch location status monitoring method proposed according to an exemplary embodiment；
Fig. 3 is the flow chart 3 of the disconnecting switch location status monitoring method proposed according to an exemplary embodiment；
Fig. 4 is the flow chart four of the disconnecting switch location status monitoring method proposed according to an exemplary embodiment；
Fig. 5 is the topology example figure one of the disconnecting switch location status monitoring system proposed according to an exemplary embodiment；
Fig. 6 is the topology example figure two of the disconnecting switch location status monitoring system proposed according to an exemplary embodiment；
Fig. 7 is the topology example figure three of the disconnecting switch location status monitoring system proposed according to an exemplary embodiment；
Appended drawing reference
The front end 1- attitude transducer in figure；11- acceleration transducer；12- gyro sensor；13- magnetic force displacement sensing
Device；2- temperature sensor；3- central processing unit；4- current sensor；5- remote communication module；6- alarm module；61- alarm
Lamp；62- loudspeaker；7- incudes electricity-fetching module.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Shown in referring to Fig.1, the embodiment provides a kind of disconnecting switch location status detection method, disconnecting switch
Separating brake, feed motion by transmission mechanism control, method includes the following steps:
101: passing through the attitudes vibration of attitude transducer real-time monitoring transmission mechanism；
102: according to the division state of attitudes vibration detection and isolation switch contact.
In a specific embodiment of the invention, by obtaining on mounted disconnecting switch main shaft and switch guide
Standard of posture information of the contact under on and off as default judgement, and with isolation switch contact change procedure
In posture information be compared to detection and isolation switch folding.In this way because of the posture information of the folding condition of disconnecting switch
Be it is fixed, only the posture information that need to obtain in moving process is compared.As a result accuracy of judgement and save manually at
This investment.
Acceleration as a kind of feasible implementation of above-described embodiment, when posture information includes main shaft movement
The displacement of degree, rotation angle and isolation switch contact during division；The compression degree of contact is judged according to acceleration；Root
The rotation angle of disconnecting switch guide rod upper contact head is measured according to rotation angle.
According to these information can measure the every phase average closing speed of disconnecting switch, average opening velocity, three-phase not the same period, open
Away from and closing stroke.Enough accelerometers logical simultaneously and gyroscope blending algorithm, accelerometer can be capable of measuring dynamic and static linear
Acceleration, tilt angle can be determined by counting directly measurement rotation axis static weight acceleration with acceleration.Acceleration transducer
When static, acceleration sensor only gravity acceleration value of the output action on acceleration sensitive axis, i.e. point of acceleration of gravity
Magnitude.According to the component value of the acceleration of gravity on each axis can calculate switch connecting rod vertically and horizontally on inclination angle
Degree.
If occurring acceleration value mutation in separating brake making process, the contact of disconnecting switch isolation guide rod can conclude that
Or it separates.
Referring to shown in Fig. 2 in a specific embodiment of the invention, method includes the following steps:
201: passing through the attitudes vibration of attitude transducer real-time monitoring transmission mechanism；
202: according to the division state of attitudes vibration detection and isolation switch contact；
203: if being in "on" position according to attitudes vibration detection and isolation switch contact, obtaining isolation switch contact connection
The temperature information at place, and whether there is electric current to pass through according to temperature information detection and isolation switch；
204: according to the degree of oxidation of institute's temperature variation curve detection and isolation switch contact.
Delta data by measuring the junction temperature of disconnecting switch judges the size of current switched out, to judge
Switch division shape.
In another embodiment of the present invention, it can opened a sluice gate or making process by drawing disconnecting switch guide rod contact
Middle temperature changes over time curve, and observes arrival assigned temperature and need the length of time to judge the degree of oxidation of contact.
In some embodiments of the invention, the temperature information that can will acquire, acceleration, rotation angle, displacement with
And current-vs-time change curve is stored as reference value, it is convenient using historical data be the performance of each component of reference analysis with
Working condition.
Referring to shown in Fig. 3, as the feasible implementation of above-described embodiment, the method for the present invention includes the following steps:
301: passing through the attitudes vibration of attitude transducer real-time monitoring transmission mechanism；
302: according to the division state of attitudes vibration detection and isolation switch contact；
303: if being in "on" position according to attitudes vibration detection and isolation switch contact, obtaining isolation switch contact connection
The temperature information at place, and whether there is electric current to pass through according to temperature information detection and isolation switch；
304: obtaining the current value of main shaft driving motor coil, and main biography is judged according to current-vs-time change curve
The motion state of moving axis.
According to current versus time curve envelope detection and isolation switch actuating electric driving mechanism with the presence or absence of bite, broken string
And closing speed reduces failure.
Referring to shown in Fig. 4, in a specific embodiment of the invention, the judgment method of current-vs-time envelope include with
Lower step:
401: obtaining the current value of main shaft driving motor coil, and main biography is judged according to current-vs-time change curve
The motion state of moving axis；
402: being judged as that current value is excessive if the reference current value that the present current value obtained is greater than storage, main shaft
There are Catons；
403: sentencing if the duration of the current current value obtained is greater than the time existing for the reference current value of storage
Breaking reduces for folding speed；
404: being judged as driving motor if being zero if the present current value obtained, there are failures.
Referring to Figure 5, the embodiments of the present invention also provide a kind of disconnecting switch location status to monitor system, comprising:
Front end attitude transducer 1, front end attitude transducer 1 are used to obtain the position letter of disconnecting switch main shaft and contact
Breath；And
Central processing unit 3, central processing unit 3 judge the division state of disconnecting switch according to location information.
In a specific embodiment of the invention, by the mounted contact for controlling disconnecting switch with automatic open-close
Stroke and the rotation status of main shaft be monitored, obtain the change in location information of main shaft and contact and made with this
For the foundation of detection and isolation switch folding in place, the investment of cost of labor is saved simultaneously with extreme high reliability.
Referring to Figure 5, in a specific embodiment of the invention further include: temperature sensor 2, temperature sensor 2 are used
In the temperature information of acquisition contact, and send it to central processing unit 3.
It is monitored in real time by the temperature to contact, obtains the temperature information of contact, sentenced according to the variation of temperature
The size of disconnected switching current out, and be in contact in conjunction with contact with the characteristic of curent change in separation process and judge point of switch
Conjunction state.It ensure that disconnecting switch opening and closing in place, avoid because main shaft or connection guide damage cause the non-division of switch to be arrived
The case where position, improve system reliability of operation.
Referring to shown in Fig. 6, in a specific embodiment of the invention, front end attitude transducer 1 includes: acceleration transducer
11 and gyro sensor 12；The acceleration information of the main shaft of acquisition is sent to central processing unit by acceleration transducer 11
3；The rotation angle information of the main shaft of acquisition is sent to central processing unit 3 by gyro sensor 12.
As the feasible implementation of above-described embodiment, the acceleration by being mounted on A, B, C three-phase main shaft is passed
Sensor 11 and gyro sensor 12, the acceleration sensing when disconnecting switch machinery main shaft changes, in rotation axis
Device 11 and gyro sensor 12 also change therewith, to generate corresponding transmission shaft angle changing.Thus from gyroscope
The respective angles obtained on sensor 12.By accelerometer and gyroscope blending algorithm, accelerometer can be capable of measuring dynamic and
Static linear acceleration, tilt angle can be determined by counting directly measurement rotation axis static weight acceleration with acceleration.Accelerate
When degree sensor is static, only gravity acceleration value of the output action on acceleration sensitive axis, i.e. gravity add acceleration sensor
The component value of speed.According to the component value of the acceleration of gravity on each axis can calculate switch connecting rod vertically and horizontally on
Tilt angle, to judge whether open and close in place.
And if may be incorporated in making process the acceleration value mutation for the measurement of acceleration transducer 11 occur, isolation knife
Moving contact and the contact of combined floodgate static contact, that is, close a floodgate and complete.
In another specific embodiment of the present invention, front end attitude transducer 1 further include: magnetic force displacement sensor 13, magnetic force
The displacement information of the contact of acquisition is sent to central processing unit 3 by displacement sensor 13.
It can measure the stroke of contact during closing a floodgate and opening a sluice gate, 3 basis of central processing unit using magnetic force displacement sensor 13
The average speed closed a floodgate or opened a sluice gate can be calculated by touching cephalomotor time and stroke.
In a specific embodiment of the invention, further includes: current sensor 4, current sensor 4 is for acquisition and main biography
The coil current value of the driving motor of moving axis connection, and send it to central processing unit 3.
Central processing unit 3 is in disconnecting switch moving process according to current versus time curve envelope detection and isolation switch behaviour
Dynamic electric driving mechanism reduces failure with the presence or absence of bite, broken string and closing speed.
It is judged as that current value is big, machine if current value is more than the normal envelope of history as a kind of feasible implementation
There are bites for structure；It is judged as that there are failures for broken string motor if no curve；If current versus time curve envelope is normally wrapped with history
Winding thread is then judged as closing speed reduction compared to relatively excessively elongating.
In a specific embodiment of the invention, further includes: remote communication module 5, remote communication module 5 is by central processing
The data that device 3 stores upload to host computer and are stored.
By carrying out storage and further analysis to the various data in disconnecting switch moving process, disconnecting switch can be used as
Normal moving process in various data reference, provide reliable foundation for the reliability service and fault alarm of system
Prioritization scheme as above-described embodiment, further includes: alarm module 6, alarm module 6 are sent out according to central processing unit 3
Alarm indication signal out is alarmed.Opening and closing in disconnecting switch can when not in place, driving motor occurs there are situations such as failure
It is sounded an alarm by alarm 6 to staff.
It include: loudspeaker 62 and alarm lamp 61, loudspeaker to advanced optimize the technical solution alarm module 6 referring to Fig. 7
62 and alarm lamp 61 made a sound according to alarm indication signal and alarmed with photosignal respectively.
By in vision and acoustically giving prompt, staff can be made to find warning message in time, processing exists in time
Failure, ensure that the normal operation of disconnecting switch.
Shown in referring to figure 6 and figure 7, in a specific embodiment of the invention, further includes: induction electricity-fetching module 7, induction takes
Electric module 7 is that each component part of system is powered.
As a kind of feasible implementation, incuding electricity-fetching module 7 in a particular application can be current transformer.
Electricity can be directly taken on cable by current transformer, be that system makes without dedicated power adapter is being arranged
Enhanced convenience is used, it is convenient for safeguarding.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of disconnecting switch location status monitoring method, which is characterized in that the separating brake of the disconnecting switch, feed motion are by passing
Dynamic mechanism controls, this method comprises:
Pass through the attitudes vibration of transmission mechanism described in attitude transducer real-time monitoring；
The division state of the isolation switch contact is judged according to the attitudes vibration.
2. the method according to claim 1, wherein the transmission mechanism includes for driving the disconnecting switch
The main shaft of contact, if judging that the isolation switch contact is in "on" position according to the attitudes vibration, the method is also
Include:
The temperature information of the isolation switch contact junction is obtained, and judges that the disconnecting switch is according to the temperature information
It is no to there is electric current to pass through.
The degree of oxidation that curve judges the isolation switch contact is changed over time according to temperature.
3. according to the method described in claim 2, it is characterized in that, the attitudes vibration includes when the main shaft moves
The displacement of acceleration, rotation angle and isolation switch contact during division, it is described to be sentenced according to the attitudes vibration
The division state of the isolation switch contact of breaking includes:
The compression degree of the contact is judged according to the acceleration；
The rotation angle of the main shaft is measured according to the rotation angle.
4. according to the method described in claim 3, it is characterized by further comprising: obtaining the main shaft driving motor coil
Current value, and judge according to current-vs-time change curve the motion state of the main shaft.
5. according to the method described in claim 4, it is characterized by further comprising: the temperature information that will acquire, the acceleration
Degree, the rotation angle, the displacement and current-vs-time change curve are stored as reference value.
6. according to the method described in claim 5, it is characterized by further comprising: if the presently described current value obtained is greater than institute
The reference current value for stating storage is then judged as that current value is excessive, and there are Catons for the main shaft.
7. according to the method described in claim 5, it is characterized by further comprising: if the current current value obtained is held
Time existing for continuous reference current value of the time greater than the storage is then judged as that folding speed reduces.
8. according to the method described in claim 5, it is characterized by further comprising: if the presently described current value obtained is zero
Then it is judged as that there are failures for the driving motor.
9. a kind of disconnecting switch location status monitors system characterized by comprising
Front end attitude transducer, the front end attitude transducer are used to obtain the position letter of disconnecting switch main shaft and contact
Breath；And
Central processing unit, the central processing unit judge the division shape of the isolation switch contact according to the positional information
State.
10. system according to claim 9, which is characterized in that further include: temperature sensor, the temperature sensor are used
In the temperature information of the acquisition contact, and the central processing unit is sent it to, so that the central processing unit is according to institute
It states temperature information and judges whether the disconnecting switch has electric current to pass through.
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| CN201811226275.1A CN109143060A (en) | 2018-10-22 | 2018-10-22 | A kind of disconnecting switch location status monitoring system and its monitoring method |
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| CN201811226275.1A CN109143060A (en) | 2018-10-22 | 2018-10-22 | A kind of disconnecting switch location status monitoring system and its monitoring method |
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| CN110018415A (en) * | 2019-04-10 | 2019-07-16 | 国网湖南省电力有限公司 | Disconnecting switch divide-shut brake position detection and double confirmation detection methods, system and medium based on attitude transducer |
| CN110018414A (en) * | 2019-03-07 | 2019-07-16 | 武汉华中天纬测控有限公司 | A kind of disconnecting switch opening and closing state monitoring device and its application |
| CN110514991A (en) * | 2019-08-28 | 2019-11-29 | 深圳市广明科技有限公司 | A kind of multisensor disconnecting link condition discrimination system and its method of discrimination |
| CN110618379A (en) * | 2019-08-07 | 2019-12-27 | 常州爱特科技股份有限公司 | Disconnecting switch on-off state monitoring system and working method |
| CN110632504A (en) * | 2019-08-07 | 2019-12-31 | 常州爱特科技股份有限公司 | Isolator attitude monitoring method |
| CN110687440A (en) * | 2019-08-21 | 2020-01-14 | 国网浙江省电力有限公司金华供电公司 | Isolator operating condition alarm device |
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| CN114325365A (en) * | 2021-11-26 | 2022-04-12 | 国网辽宁省电力有限公司电力科学研究院 | Method for evaluating dynamic characteristics of isolating switch in GIS |
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| CN110687440A (en) * | 2019-08-21 | 2020-01-14 | 国网浙江省电力有限公司金华供电公司 | Isolator operating condition alarm device |
| CN110514991A (en) * | 2019-08-28 | 2019-11-29 | 深圳市广明科技有限公司 | A kind of multisensor disconnecting link condition discrimination system and its method of discrimination |
| CN110806310B (en) * | 2019-09-27 | 2022-04-26 | 国网浙江省电力有限公司杭州供电公司 | Online monitoring method and device for mechanical characteristics of high-voltage isolating switch operating mechanism |
| CN110806310A (en) * | 2019-09-27 | 2020-02-18 | 国网浙江省电力有限公司杭州供电公司 | Online monitoring method and device for mechanical characteristics of high-voltage isolating switch operating mechanism |
| CN112701661A (en) * | 2019-10-22 | 2021-04-23 | 株洲中车时代电气股份有限公司 | Control method and control device for traction converter of alternating-current transmission locomotive with electric isolating switch |
| CN112098828A (en) * | 2020-09-10 | 2020-12-18 | 国网江苏省电力有限公司无锡供电分公司 | AIS switch installation calibration and maintenance intelligent detection system and method |
| CN112098828B (en) * | 2020-09-10 | 2024-03-15 | 国网江苏省电力有限公司无锡供电分公司 | AIS switch installation calibration and overhaul intelligent detection system and method |
| CN112213577A (en) * | 2020-09-21 | 2021-01-12 | 长园共创电力安全技术股份有限公司 | Method and device for detecting electrical operation, computer key and storage medium |
| CN113189480A (en) * | 2021-04-22 | 2021-07-30 | 西安交通大学 | Fault diagnosis method and device in closing/opening process of isolating switch |
| CN113741242A (en) * | 2021-08-02 | 2021-12-03 | 南方电网科学研究院有限责任公司 | Control method, device and system of isolating switch |
| CN114325365A (en) * | 2021-11-26 | 2022-04-12 | 国网辽宁省电力有限公司电力科学研究院 | Method for evaluating dynamic characteristics of isolating switch in GIS |
| CN116338447A (en) * | 2023-02-28 | 2023-06-27 | 湖北清江水电开发有限责任公司 | Method for monitoring opening and closing states of isolating switch |
| CN116338447B (en) * | 2023-02-28 | 2024-05-14 | 湖北清江水电开发有限责任公司 | Method for monitoring opening and closing states of isolating switch |
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