CN107515108A - The mechanical property monitoring device and its monitoring method of high voltage isolating switch operating mechanism - Google Patents
The mechanical property monitoring device and its monitoring method of high voltage isolating switch operating mechanism Download PDFInfo
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- CN107515108A CN107515108A CN201710617195.8A CN201710617195A CN107515108A CN 107515108 A CN107515108 A CN 107515108A CN 201710617195 A CN201710617195 A CN 201710617195A CN 107515108 A CN107515108 A CN 107515108A
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- high voltage
- operating mechanism
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- isolating switch
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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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
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Abstract
The present invention relates to the mechanical property monitoring device and monitoring method of a kind of high voltage isolating switch operating mechanism, belong to machine control techniques field.The device includes input interface, other interfaces and microprocessor for items such as communications that some state parameters determine.It is as follows using the method and step of the device, 1）Data sampling；2）Draw the first current-time curvel and the first travel-time curve；3）Analyze data；4）Wait further order.Whether this is normal according to the indirect detection and isolation switch working state of changing rule of current-time curvel and travel-time curve so that being not required to destruction enclosed construction can be monitored to the mechanical property of high voltage isolating switch operating mechanism.
Description
Technical field
The present invention relates to the mechanical property monitoring device and its monitoring method of a kind of high voltage isolating switch operating mechanism, belong to
Machine control techniques field.
Background technology
The fast development of social economy result in the continuous improvement to power system requirements, while to the demand of energy also day
Benefit increases, and this stability and economy to power system proposes more strict requirements.In electric power networks, disconnecting switch
Effect be in order to repair and maintenance work and the method for operation transformation needs, by the electrical equipment and interruption maintenance of charging operation
Or come in standby equipment blocking, it is desirable to there must be enough cut-off distances.Open isolating switch can be seen by naked eyes
Disconnecting switch operating state is examined, but the disconnecting switch in GIS device is enclosed in insulating cylinder, it is impossible to be directly observed sound
The opening and closing in place situation of contact, the position indicator pointer on mechanism case, the divide-shut brake lamp in convergence control cabinet and backstage position can only be passed through
Carry out the operating state of indirect judgement disconnecting link.International conference on large HV electric systems statistics shows that the GIS fault isolating switches overwhelming majority is come
From in mechanical aspects, therefore studying disconnecting switch mechanical fault diagnosis has particularly important meaning, to ensure the peace of switchgear
Row for the national games, it is badly in need of a kind of performance monitoring method for not destroying enclosed construction.
The content of the invention
The invention solves the first technical problem be, in view of the shortcomings of the prior art, propose one kind be used for GIS high_voltage isolations
The mechanical property monitoring device of switch operating mechanism.
It is of the invention to be to solve the technical scheme of the first technical problem proposition：The machinery of high voltage isolating switch operating mechanism
Characteristic monitoring device, including ground connection position inputs to isolation order of the bit, isolated bit to the input of ground connection order of the bit, Hall current sensing
Device, the first optical coupling isolation circuit, the second optical coupling isolation circuit, signal conditioning circuit, microcontroller circuit, addressing circuit,
State instruction warning circuit, motor absolute value encoder, display circuit, key circuit, communication interface circuit, data storage electricity
Road, power circuit；Ground connection position is connected to isolation order of the bit input with the input of the first optical coupling isolation circuit, the first light-coupled isolation
The output end of circuit is connected with microcontroller circuit input I/O mouths；Isolated bit to ground connection order of the bit input with the second optocoupler every
Input from circuit is connected, and the output end of the second optical coupling isolation circuit is connected with microcontroller circuit input I/O mouths；Hall
The output end of current sensor and the input of signal conditioning circuit connect, output end and the microprocessor electricity of signal conditioning circuit
Road A/D ports connect；The output end of addressing circuit and key circuit is connected with the I/O mouths of microcontroller circuit input；
The input of state instruction warning circuit and display circuit is connected with the I/O mouths of microcontroller circuit output end；Motor absolute value
The output end of encoder is connected with the I/O mouths of microcontroller circuit input；The input and microprocessor of communication interface circuit
Circuit corresponds to port connection；The input of data storage circuitry and microcontroller circuit output end I /O mouths are connected；Power supply electricity
The output end on road and the power port of microcontroller circuit connect.
The improvement of above-mentioned technical proposal is：The Hall current sensor is used to obtain current versus time curve, the motor
Absolute value encoder is used to obtain stroke-time graph.
The improvement of above-mentioned technical proposal is：The state output relay of the high voltage isolating switch operating mechanism connects with described
Status is connected to the input of isolation order of the bit and/or the isolated bit to ground connection order of the bit input
The improvement of above-mentioned technical proposal is：The microprocessor uses STM32 microcontrollers.
It is of the invention to be using the beneficial effect of above-mentioned technical proposal：Pass through Hall current sensor and motor absolute encoder
Device gets the related data and motor angle data of current of electric, is derived using these data and is opened with high_voltage isolation indirectly
Some related mechanical property datas of operating mechanism are closed, by analyzing these data, are not destroying closed mechanical structure
In the case of, analysis monitoring is carried out to mechanical performance.
The invention solves the second technical problem be, in view of the shortcomings of the prior art, propose one kind opened using high_voltage isolation
Close the method that the mechanical property monitoring device of operating mechanism carries out high voltage isolating switch operating mechanism mechanical property monitoring.
It is of the invention to be to solve the technical scheme of the second technical problem proposition：1）The monitoring device receives ground connection position
To isolation order of the bit, current of electric and motor angle data to the high voltage isolating switch operating mechanism sample；
2）According to step 1）Middle data draw the first current versus time curve and the first stroke-time graph；
3）Recording step 2）The curve of middle drafting, data message corresponding with curve is stored, analyzes the curve and data message；
If the envelope line chart of first current versus time curve is beyond the model of envelope line chart ± 5% of reference current-time graph
Enclose, then the high voltage isolating switch operating mechanism has bite, sends alarm signal and performs step 4）；
If the envelope line chart of first current versus time curve is in the model of envelope diagram ± 5% of the reference current-time graph
In enclosing, then step 4 is performed）；
If step 2）Fail storage first current versus time curve, then the drive of the high voltage isolating switch operating mechanism
Dynamic motor coil broken string, signal an alert simultaneously perform step 4）；
If step 2）It is middle successfully to store first current versus time curve, then perform step 4）；
If first stroke-time graph is less than benchmark stroke-time graph, the high voltage isolating switch operating mechanism
Isolation knife and earthing are not in place, send alarm signal and perform step 4）；
If first stroke-time graph is more than or equal to benchmark stroke-time graph, step 4 is performed）；
Reference current-the time graph and the stroke-time graph are that high voltage isolating switch operating mechanism puts into operation
When the curve that is preserved；
4）The isolated bit to be received such as the monitoring device to ground connection order of the bit/ground connection position to isolate order of the bit.
The improvement of above-mentioned technical proposal is：The ground connection position is defeated to ground connection order of the bit with isolated bit to the input of isolation order of the bit
Enter to be connected by the state output relay with the high voltage isolating switch operating mechanism and isolate to obtain high voltage isolator
Knife and or earthing state position information, so as to learn that high voltage isolator isolation knife and earthing present position are to be in
Isolated bit ground connection position.
The improvement of above-mentioned technical proposal is：Current versus time curve is obtained by Hall current sensor, it is absolute by motor
It is worth encoder and obtains stroke-time graph.
It is of the invention to be using the beneficial effect of above-mentioned technical proposal：（1）First to the motor during disconnecting switch division
Electric current carries out data sampling, and mathematical analysis is carried out to sampled data feedback to analysis module, judges that disconnecting link is according to analysis result
No have that jam is serious, whether good, dynamic/static contact is opened whether meets requirement etc. away from/insertion depth for division process of disconnecting link, fills
Put the operational reliability that research and development are effectively improved power network into function.（2）According to current versus time curve and stroke-time graph
The indirect detection and isolation switch working state of changing rule it is whether normal, that is, monitor operating mechanism with the presence or absence of bite, driving electricity
Whether in place etc. whether machine coil break, isolate and be grounded position information, to ensure isolated switchgear safe operation.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the structured flowchart of the mechanical property monitoring device of the high voltage isolating switch operating mechanism of the embodiment of the present invention.
Fig. 2 is the flow chart of the high voltage isolating switch operating mechanism mechanical property monitoring method of the embodiment of the present invention.
Embodiment
Embodiment
The mechanical property monitoring device of the high voltage isolating switch operating mechanism of the present embodiment, as shown in figure 1, including being grounded position
To the input of isolation order of the bit, isolated bit to ground connection order of the bit input, Hall current sensor, the first optical coupling isolation circuit, second
Optical coupling isolation circuit, signal conditioning circuit, microcontroller circuit, addressing circuit, state instruction warning circuit, motor are absolute
It is worth encoder, display circuit, key circuit, communication interface circuit, data storage circuitry, power circuit；Position is grounded to isolated bit
Order input is connected with the input of the first optical coupling isolation circuit, the output end and microcontroller circuit of the first optical coupling isolation circuit
Input I/O mouths connect；Isolated bit is connected to ground connection order of the bit input with the input of the second optical coupling isolation circuit, the second optocoupler
The output end of isolation circuit is connected with microcontroller circuit input I/O mouths；The output end of Hall current sensor is adjusted with signal
The input connection of circuit is managed, the output end of signal conditioning circuit is connected with microcontroller circuit A/D ports；Addressing circuit
It is connected with the output end of key circuit with the I/O mouths of microcontroller circuit input；State instruction warning circuit and display circuit
Input be connected with the I/O mouths of microcontroller circuit output end；The output end of motor absolute value encoder and microprocessor electricity
The I/O mouths connection of road input；The port connection corresponding with microcontroller circuit of the input of communication interface circuit；Data storage
The input of circuit and microcontroller circuit output end I /O mouths are connected；The output end of power circuit and microcontroller circuit
Power port connects.
The Hall current sensor of the present embodiment is used to obtain current versus time curve, and motor absolute value encoder is used to obtain
Obtain stroke-time graph.
The state output relay of the high voltage isolating switch operating mechanism of the present embodiment and ground connection position are defeated to order of the bit is isolated
Enter and/or isolated bit is connected to ground connection order of the bit input
The microprocessor of the present embodiment uses STM32 microcontrollers.
As shown in Fig. 2 the side being monitored using above-mentioned device to the mechanical property of high voltage isolating switch operating mechanism
Method,
1）Monitoring device receives ground connection position to isolation order of the bit, to the current of electric and motor of high voltage isolating switch operating mechanism
Angle data is sampled；
2）According to step 1）Middle data draw the first current versus time curve and the first stroke-time graph；
3）Recording step 2）The curve of middle drafting, data message corresponding with curve is stored, analyze curve and data message；
If the envelope line chart of the first current versus time curve exceeds the scope of envelope line chart ± 5% of reference current-time graph,
There is bite in high voltage isolating switch operating mechanism, send alarm signal and perform step 4）；
If the envelope line chart of the first current versus time curve is held in the range of envelope diagram ± 5% of reference current-time graph
Row step 4）；
If step 2）Fail and store the motor line of the first current versus time curve, then high voltage isolating switch operating mechanism
Circle broken string, signal an alert simultaneously perform step 4）；
If step 2）It is middle successfully to store the first current versus time curve, then perform step 4）；
If the first stroke-time graph is less than benchmark stroke-time graph, the isolation knife of high voltage isolating switch operating mechanism and
Earthing is not in place, sends alarm signal and performs step 4）；
If the first stroke-time graph is more than or equal to benchmark stroke-time graph, step 4 is performed）；
Reference current-time graph and stroke-time graph are that high voltage isolating switch operating mechanism is preserved when putting into operation
Curve；
4）The isolated bit to be received such as monitoring device to ground connection order of the bit/ground connection position to isolate order of the bit.
In the above-mentioned methods, by be grounded position to isolation order of the bit input with isolated bit to ground connection order of the bit input by with
The state output relay of high voltage isolating switch operating mechanism be connected obtain high voltage isolator isolation knife and or earthing
State position information, so as to learn high voltage isolator isolation knife and earthing present position be in isolated bit ground connection position,
To realize that the real-time circulation to high voltage isolating switch operating mechanism monitors.
The data that the present embodiment is used to draw current versus time curve are gathered by Hall current sensor, and are used for
The data for drawing stroke-time graph are gathered by motor absolute value encoder.
The present embodiment measures the motor corner of high voltage isolating switch operating mechanism by motor absolute value encoder, according to electricity
Machine rotational angle judges the stroke of operating mechanism, i.e. the stroke of motor corner and operating mechanism has one-to-one relationship, with this
To obtain stroke-time graph of high voltage isolating switch operating mechanism, and the current break in coupling coil current versus time curve
Put to judge the total kilometres of high voltage isolating switch operating mechanism, extended distance and edge of a knife distance.Disconnecting switch from isolated bit to
It is more steady from bringing into operation being worked with current of electric in the edge of a knife cohesive process when being grounded position, or being grounded position to isolated bit, and enter
Increased suddenly by edge of a knife drag effects, electric current after entering the edge of a knife, i.e., now from electric current increase to electric current and terminate this section of process and be exactly
Edge of a knife distance, total kilometres subtract the edge of a knife apart from instant extended distance.By the monitoring to this two groups of data, can effectively improve
The operating reliability of GIS high voltage isolators, reduce maintenance and the workload and cost safeguarded.
The present invention is not limited to above-described embodiment.All technical schemes formed using equivalent substitution, all falling within the present invention will
The protection domain asked.
Claims (7)
1. the mechanical property monitoring device of high voltage isolating switch operating mechanism, it is characterised in that：Ordered including ground connection position to isolated bit
Order input, isolated bit to ground connection order of the bit input, Hall current sensor, the first optical coupling isolation circuit, the second light-coupled isolation electricity
Road, signal conditioning circuit, microcontroller circuit, addressing circuit, state instruction warning circuit, motor absolute value encoder,
Display circuit, key circuit, communication interface circuit, data storage circuitry, power circuit；Be grounded position to isolation order of the bit input and
The input connection of first optical coupling isolation circuit, output end and the microcontroller circuit input I/O of the first optical coupling isolation circuit
Mouth connection；Isolated bit is connected to ground connection order of the bit input with the input of the second optical coupling isolation circuit, the second optical coupling isolation circuit
Output end be connected with microcontroller circuit input I/O mouths；The output end of Hall current sensor and signal conditioning circuit
Input is connected, and the output end of signal conditioning circuit is connected with microcontroller circuit A/D ports；Addressing circuit and button electricity
The output end on road is connected with the I/O mouths of microcontroller circuit input；The input of state instruction warning circuit and display circuit
It is connected with the I/O mouths of microcontroller circuit output end；The output end of motor absolute value encoder and microcontroller circuit input
I/O mouths connection；The port connection corresponding with microcontroller circuit of the input of communication interface circuit；Data storage circuitry it is defeated
Enter end and microcontroller circuit output end I /O mouths are connected；The output end of power circuit and the power port of microcontroller circuit
Connection.
2. the mechanical property monitoring device of high voltage isolating switch operating mechanism according to claim 1, it is characterised in that：Institute
State Hall current sensor to be used to obtain current versus time curve, the motor absolute value encoder is used to obtain stroke-time song
Line.
3. the mechanical property monitoring device of high voltage isolating switch operating mechanism according to claim 1, it is characterised in that：Institute
State the state output relay of high voltage isolating switch operating mechanism and the ground connection position to isolate order of the bit input and/or it is described every
Off normal to ground connection order of the bit input and be connected.
4. the mechanical property monitoring device of high voltage isolating switch operating mechanism according to claim 1, it is characterised in that：Institute
State microprocessor and use STM32 microcontrollers.
Opened 5. the mechanical property monitoring device of the high voltage isolating switch operating mechanism described in application claim 1 carries out high_voltage isolation
The method for closing the monitoring of operating mechanism mechanical property, it is characterised in that perform following steps：
1）The monitoring device receives ground connection position to isolation order of the bit, to the motor electricity of the high voltage isolating switch operating mechanism
Stream and motor angle data are sampled；
2）According to step 1）Middle data draw the first current versus time curve and the first stroke-time graph；
3）Recording step 2）The curve of middle drafting, data message corresponding with curve is stored, analyzes the curve and data message；
If the envelope line chart of first current versus time curve is beyond the model of envelope line chart ± 5% of reference current-time graph
Enclose, then the high voltage isolating switch operating mechanism has bite, sends alarm signal and performs step 4）；
If the envelope line chart of first current versus time curve is in the model of envelope diagram ± 5% of the reference current-time graph
In enclosing, then step 4 is performed）；
If step 2）Fail storage first current versus time curve, then the drive of the high voltage isolating switch operating mechanism
Dynamic motor coil broken string, signal an alert simultaneously perform step 4）；
If step 2）It is middle successfully to store first current versus time curve, then perform step 4）；
If first stroke-time graph is less than benchmark stroke-time graph, the high voltage isolating switch operating mechanism
Isolation knife and earthing are not in place, send alarm signal and perform step 4）；
If first stroke-time graph is more than or equal to benchmark stroke-time graph, step 4 is performed）；
Reference current-the time graph and the stroke-time graph are that high voltage isolating switch operating mechanism puts into operation
When the curve that is preserved；
4）The isolated bit to be received such as the monitoring device to ground connection order of the bit/ground connection position to isolate order of the bit.
6. the method for high voltage isolating switch operating mechanism mechanical property monitoring according to claim 5, it is characterised in that：Institute
Ground connection position is stated to the input of isolation order of the bit and isolated bit to the input of ground connection order of the bit by operating machine with the high voltage isolator
The state output relay of structure be connected obtain high voltage isolator isolation knife and or earthing state position information, from
And learn high voltage isolator isolation knife and earthing present position be in isolated bit ground connection position.
7. the method for high voltage isolating switch operating mechanism mechanical property monitoring according to claim 5, it is characterised in that：It is logical
Cross Hall current sensor and obtain current versus time curve, stroke-time graph is obtained by motor absolute value encoder.
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| CN201710617195.8A CN107515108B (en) | 2017-07-26 | 2017-07-26 | The mechanical property monitoring device and monitoring method of high voltage isolating switch operating mechanism |
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| CN107515108B CN107515108B (en) | 2019-10-18 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110286318A (en) * | 2019-05-05 | 2019-09-27 | 国网浙江海盐县供电有限公司 | A kind of portable high-pressure disconnecting switch mechanical property detector and method |
| CN110530625A (en) * | 2019-09-17 | 2019-12-03 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of high voltage isolator mechanical fault diagnosis device and method |
| 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 |
| CN111141503A (en) * | 2019-12-20 | 2020-05-12 | 国网浙江海盐县供电有限公司 | Portable GIS isolating switch operating mechanism mechanical characteristic tester and testing method |
| CN111722102A (en) * | 2020-06-08 | 2020-09-29 | 国网辽宁省电力有限公司电力科学研究院 | Instrument and method for analyzing action reliability of 252kV GIS internal isolation switch |
| CN113484741A (en) * | 2021-06-09 | 2021-10-08 | 国网浙江海盐县供电有限公司 | GIS disconnecting switch working state monitoring device and method |
| CN114336974A (en) * | 2022-01-06 | 2022-04-12 | 广州市扬新技术研究有限责任公司 | Monitoring method for isolating switch cabinet |
| 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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| 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 |
| 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 |
| CN111141503A (en) * | 2019-12-20 | 2020-05-12 | 国网浙江海盐县供电有限公司 | Portable GIS isolating switch operating mechanism mechanical characteristic tester and testing method |
| CN111722102A (en) * | 2020-06-08 | 2020-09-29 | 国网辽宁省电力有限公司电力科学研究院 | Instrument and method for analyzing action reliability of 252kV GIS internal isolation switch |
| CN113484741A (en) * | 2021-06-09 | 2021-10-08 | 国网浙江海盐县供电有限公司 | GIS disconnecting switch working state monitoring device and method |
| 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 |
| CN114336974A (en) * | 2022-01-06 | 2022-04-12 | 广州市扬新技术研究有限责任公司 | Monitoring method for isolating switch cabinet |
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