CN107907825A - A kind of open type high-voltage disconnecting switch on-Line Monitor Device and method - Google Patents
A kind of open type high-voltage disconnecting switch on-Line Monitor Device and method Download PDFInfo
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- CN107907825A CN107907825A CN201711042446.0A CN201711042446A CN107907825A CN 107907825 A CN107907825 A CN 107907825A CN 201711042446 A CN201711042446 A CN 201711042446A CN 107907825 A CN107907825 A CN 107907825A
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- disconnecting switch
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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
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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
- G01R31/3275—Fault detection or status indication
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
- H01H9/167—Circuits for remote indication
Abstract
A kind of open type high-voltage disconnecting switch on-Line Monitor Device and method.Described device is made of sensing module, central primary control module, inductive power supply power supply module.The device is installed on high-voltage isolating switch conducting arm, and sensing module is installed on static contact finger and the static contact position of disconnecting switch, can monitor distance and the temperature of static contact finger between the displacement of static contact finger, dynamic/static contact.Inductive power supply power supply module obtains energy by sensing primary current, powers for device.Central primary control module is by nursing one's health the data of collection, being analyzed, judge disconnecting switch opening and closing state and health status, result is sent to comprehensive IED eventually through wireless network, the status monitoring to open type high-voltage disconnecting switch is realized, so as to reduce equipment operation maintenance cost.
Description
Technical field
The invention belongs to electrical equipment online supervision field, suitable for 110kV and the open type high-voltage of above
The on-line monitoring of isolated switchgear.
Background technology
Since the " 12th Five-Year Plan ", country, which advocates, encourages to build strong intelligent grid, intelligent terminal, MU, electronic mutual inductor,
More advanced measuring and controlling protective device, the state monitoring apparatus of multidimensional are applied in the construction of power grid.But opened for high_voltage isolation
The status monitoring of pass, is still blank out in world power industry status monitoring field, high voltage isolator is as power grid
Important component, has long " history ", is widely applied in the power grid construction in China.But high voltage isolator is deposited
In its inborn deficiency, since its dielectric uses air insulation, its contact members insulation distance is larger, Contact Breaking/Making Operations
Lock stroke is grown, and drive mechanism is complicated.High voltage isolator is chiefly used in open air at the same time, and the working environment residing for it is more complicated, filthy
Grade is high.Transmission mechanism is chronically exposed to open air, exposes to the weather and drenches with rain, and is easily invaded (such as Bird's Nest) by other materials.Therefore it is outdoor
High voltage isolator has that divide-shut brake is not in place during breaking-closing operating, and the phenomenon of even " refuse point, refuse to close " occurs.For
Ensure power grid safe operation, to outdoor high-voltage isolating switch carry out breaking-closing operating during, it is necessary to which operation maintenance personnel exists
Scene, confirms the opening and closing state of disconnecting switch, therefore unattended and scheduling the remote remote control of tune in power station difficult to realize.Open wide
Formula high voltage isolator on-Line Monitor Device, the divide-shut brake shape that can be switched by multidimensional sensor and data analysis detection and isolation
State, is far controlled so as to fulfill the teletransmission of disconnecting switch.
The content of the invention
The present invention provides a kind of open type high-voltage disconnecting switch on-Line Monitor Device, to solve open type high-voltage isolation
The problem of divide-shut brake is not in place is switched, while disconnecting switch operation health status can be monitored, reduces disconnecting switch operation dimension
Cost is protected, realizes the status information teletransmission of high voltage isolator.
The solution of the present invention is：
A kind of open type high-voltage disconnecting switch on-Line Monitor Device, including sensing module, central primary control module, induction type electricity
Source power supply module；It is characterized in that：
Central primary control module is installed on the high-pressure conductive arm of open type high-voltage disconnecting switch, and sensing module is installed on high pressure
On static contact isolation switch, inductive power supply power supply module is installed at high voltage isolator lead；Gathered by sensing module
Parameter, that is, gathered data during high voltage isolator divide-shut brake, and it is uploaded to central control module；Central primary control module root
According to the parameter received, detection and isolation switch opening and closing state and operating status, and result is sent to comprehensive by Wi-Fi
Close intelligent electric power monitoring device (hereinafter referred to as comprehensive IED)；Inductive power supply power supply module provides power supply for central primary control module.
The present invention further comprises following preferred solution：
The sensing module is made of 2 changing sensors, 1 displacement sensor, 1 temperature sensor；
The changing sensor is installed on the arranged on left and right sides static contact finger of high voltage isolator, for monitoring static contact finger position
Shifting signal；
Institute's displacement sensors are installed on high-voltage isolating switch static contact head, for monitoring between moving contact and fixed contact of isolating switch
Distance signal；
The temperature sensor is installed on high-voltage isolating switch static contact head, for monitoring static contact isolation switch temperature letter
Number.
During the gathered data monitored is uploaded to by the changing sensor, displacement sensor, temperature sensor respectively
Main control module is entreated, wherein the gathered data includes displacement signal, distance signal and temperature signal.
The central primary control module is by signal condition unit, data processing unit, Power Management Unit, wireless communication list
Member, built-in lithium battery group composition；
The signal condition unit is sent to number after sensing module gathered data is carried out conditioning amplification and analog-to-digital conversion
According to processing unit；
The data processing unit for reception of the completion to gathered data, record and draws isolation according to gathered data
Each time-based change curve of sensing data during switch divide-shut brake, according to change curve extraction particular point in time
The change of static contact finger displacement before and after range data between static contact finger displacement data and dynamic/static contact, and disconnecting switch divide-shut brake
Value, the characteristic parameter as disconnecting switch divide-shut brake mechanical movement；The characteristic parameter of disconnecting switch divide-shut brake mechanical movement is made
For the input data of BP neural network multi-data fusion method, disconnecting switch opening and closing state is differentiated by exporting result.
The Power Management Unit is respectively connected to inductive power supply power supply module and central primary control module internal battery two-way
Power supply, Power Management Unit switch power supply source according to disconnecting switch operating status；When disconnecting switch be in put into operation state and every
Leave and close main circuit current when being more than 5A, power supply is switched to inductive power supply power supply module by Power Management Unit, when every
Leave pass when be in stand-by state or during off-state Power Management Unit power supply be switched to internal battery group power.
The Power Management Unit is instructed according to data acquisition unit, and the power supply to sensing module is put into or cut off
Operation；When disconnecting switch carries out breaking-closing operating, send and instruct from data processing unit to Power Management Unit, power management
Unit puts into sensing module current supply circuit, and sensing module current supply circuit is cut off after the completion of breaking-closing operating, and only retention data is handled
Unit current supply circuit.
The wireless communication unit uses the disconnecting switch divide-shut brake shape that 2.4G communications bands obtain central primary control module
State and operating status diagnostic result are uploaded to comprehensive IED.
The inductive power supply power supply module：Realize that sensing takes electricity using permalloy steel band and air core coil.Use slope
Not alloy winding Primary Conductor, then passes through air core coil, final that permalloy steel band both ends are fixed together using buckle,
The sensing device of a non-closed magnetic circuit is formed, by sensing through the electric current in major loop of the device, obtains electric energy.It is empty
Induced electromotive force caused by wire-core coil both ends, by conducting wire after rectifying and wave-filtering, is conveyed to Power Management Unit.
The application further simultaneously discloses a kind of online prison based on aforementioned open formula high voltage isolator on-Line Monitor Device
Survey method, it is characterised in that the monitoring method comprises the following steps：
Step 1：Judge whether open type high-voltage disconnecting switch on-Line Monitor Device is to keep apart for the first time installed in the model
Shut, if it is carry out how subnormal breaking-closing operating for disconnecting switch, and gather left and right side stationary contact during divide-shut brake
Refer to displacement signal SLAnd SR, distance signal H between dynamic/static contact, and static contact finger surface temperature signal Tw, extract initial time and end
Moment left and right side static contact finger displacement SL1、SR1、SL2、SR2, the data H of dynamic/static contact spacing1、H2And initial time and end of a period
The changing value Δ S of moment left and right side static contact finger displacement dataLWith Δ SRDeng characteristic parameter, and using characteristic quantity as BP neural network
Input vector, divide-shut brake result as desired output as a result, training and test b P neutral nets, when the network output result with
When expected result error is less than setting value, judges learning success, obtain final weights W, open type high-voltage disconnecting switch exists at this time
Line monitoring device possesses the ability of detection and isolation switch opening and closing state.
Step 2：After open type high-voltage disconnecting switch on-Line Monitor Device bringing normally into operation, open type high-voltage disconnecting switch is online
After monitoring device receives monitored isolator operation instruction, start sensing module, continuous acquisition disconnecting switch divide-shut brake mistake
Journey middle left and right side static contact finger displacement signal, distance signal between dynamic/static contact, static contact finger surface temperature signal；
Step 3：Left and right side static contact finger displacement variable is drawn, distance change amount between dynamic/static contact, static contact finger surface temperature
The curve map that degree variable quantity is changed based on time t；
Step 4：According to 4 curve maps are drawn, particular moment left and right sides static contact finger displacement, the number of dynamic/static contact spacing are extracted
According to this and the initial moment is operated with operating the changing value for the moment disconnecting switch left and right side static contact finger displacement that ends；
Step 5, using the data fusion method of BP neural network, passes through L- using extracted characteristic parameter as input array
MBP algorithms, result judgement disconnecting switch opening and closing state result is exported according to algorithm；
Step 6：The diagnostic result of acquisition is sent to comprehensive IED by zigbee wireless networks；
Step 7：When high voltage isolator is in run with load state, open type high-voltage disconnecting switch on-Line Monitor Device
Gather static contact finger temperature TwDelta data, and the load parameter electric current I of this circuit is obtained from comprehensive IED, according to load parameter
Electric current I and static contact finger temperature Tw, environment temperature T0Multi-data fusion calculating is carried out etc. data, is obtained for sound fingertip contact electricity
The change of resistance, reflects sound fingertip surface oxidation trend, and result is uploaded to comprehensive IED.
A kind of open type high-voltage disconnecting switch on-Line Monitor Device of the present invention and method, its advantages and beneficial effects are as follows：
1. a kind of open type high-voltage disconnecting switch on-Line Monitor Device is by monitoring the static contact finger displacement of disconnecting switch, sound
The change of distance between contact, it can be determined that disconnecting switch opening and closing state.；
2. a kind of open type high-voltage disconnecting switch on-Line Monitor Device is changed by monitoring the contact temperature of disconnecting switch, melt
The parameters such as zygonema road one time load, environment temperature, it can be determined that moving contact and fixed contact of isolating switch surface oxidation degree；
3. a kind of open type high-voltage disconnecting switch on-Line Monitor Device is changed by monitoring the branch wire time of disconnecting switch,
It may determine that the casey situation of disconnecting switch mechanical transmission component；
4. a kind of open type high-voltage disconnecting switch on-Line Monitor Device obtains energy and timing wake-up work using sensing electric current
Make mode, effectively reduce device power consumption, solve the problems, such as that hot side plant maintenance is difficult；
5. a kind of open type high-voltage separates switch on-Line Monitor Device and uses 2.4G wireless communication techniques, evade electric in power station
The problem of dizzy interference, effectively solves under the premise of ensureing to insulate, data remote, increases communication reliability.
Brief description of the drawings
Fig. 1 open type high-voltage disconnecting switch on-Line Monitor Device system block diagrams；
Fig. 2 open type high-voltage disconnecting switch on-Line Monitor Device scheme of installation；
Fig. 3 open type high-voltage disconnecting switch on-line monitoring method flow matters figures；
Fig. 4 open type high-voltages disconnecting switch monitors simplified model schematic diagram on-line.
Embodiment
To make goal of the invention, technology path and the beneficial effect of the present invention become apparent from understanding, in conjunction with attached drawing and specifically
Embodiment further illustrates.
As shown in Figure 1, a kind of open type high-voltage disconnecting switch on-Line Monitor Device by sensing module, central primary control module,
Inductive power supply power supply module forms, and is connected between three kinds of modules using cable.Sensing module by 2 changing sensors, 1
Displacement sensor, 1 temperature sensor composition, are responsible for the displacement signal of collection disconnecting switch left and right side static contact finger, dynamic/static contact
Between distance signal, the temperature signal of static contact finger, and signal is sent to central primary control module by cable.Central primary control module
By conditioning unit, data processing unit, Power Management Unit, wireless communication unit, internal battery group composition, central primary control module
Control whole device operation logic, conditioning and analysis sensing module institute gathered data are mainly responsible for, and is provided according to analysis result
The judgement of disconnecting switch opening and closing state by wireless communication unit as a result, and send result to comprehensive IED devices.Induction type
Power supply module, power supply is provided by sensing through the electric current flowed through in the Primary Conductor of the module for central primary control device.
Open type high-voltage disconnecting switch on-Line Monitor Device can be by gathering disconnecting switch left and right side static contact finger displacement signal, sound
Distance signal between contact, the temperature signal of static contact finger, analysis detection and isolation switch opening and closing state, and analysis result is passed through
Cordless communication network is sent to comprehensive IED devices, and it is final on send to integrated monitoring backstage.
As shown in Figure 2：Open isolating switch on-Line Monitor Device is installed on the single-phase Primary Conductor side of high voltage isolator.
2 changing sensors are separately mounted to disconnecting switch arranged on left and right sides static contact finger on piece, pass through the displacement of deformation quantitative response static contact finger
Amount.1 displacement sensor is installed on static contact isolation switch position, can monitor distance between moving contact and fixed contact of isolating switch.1
Temperature sensor is installed on isolating switch static contact finger.Central primary control module is installed on high-pressure conductive arm upper end, is consolidated using bolt
It is fixed, ensure that central primary control module is in same potential with primary equipment.Inductive power supply power supply module, using permalloy steel band
Through air core coil structure.Permalloy steel strip winding passes through air core coil in the Primary Conductor at disconnecting switch lead,
Finally permalloy steel band both ends are secured together using steel band fixator.Permalloy steel band is obtained from primary current
Electric energy, and fixation is played, inductive power supply power supply module is fixed on high voltage isolator.
As shown in Figure 3：When open isolating switch on-Line Monitor Device is installed on a certain type of isolation switch for the first time,
It needs to complete study, trains, after the process of test using BP neural network data fusion method, just possesses detection and isolation switch point
The ability of "on" position.Open isolating switch on-Line Monitor Device is first after installation is complete, need to be directed to disconnecting switch carry out it is more
Subnormal breaking-closing operating, gathers normal divide-shut brake data, and data include breaking-closing operating initial time disconnecting switch left and right sides
Static contact finger displacement SL1、SR1Moving contact and fixed contact of isolating switch spacing H1, breaking-closing operating end of a period moment disconnecting switch left and right sides static contact finger
Displacement SL2、SR2, moving contact and fixed contact of isolating switch spacing H2, and initial time and the variation delta S for the moment each data that endLWith
ΔSR.Input array data X (X using above-mentioned 8 kinds of data as BP neural network1、X2…X8), X1-8With SL1、SL2、SR1、SR2、
H1、H2、ΔSL、ΔSRInto one-to-one relationship.And using all divide-shut brake data as study, training, the sample data of test, y
(y1、y2) output is used as a result, y1=1 and y2=0 represents the normal gate-dividing state of disconnecting switch, y1=0 and y2=1 representative is kept apart
Close normal "on" position.BP neural network uses S type functions：
Wherein net=W1X1+W2X2+W3X3+W4X4+W5X5+W6X6+W7X7+W8X8, W represents weights.Error function is：
Wherein doFor desired output as a result, i.e. normal separating brake when d1=1 and d2=0, d when normally closing a floodgate1=0 and d2=1, yo
Exported for BP neural network as a result, K is input data number, its whole work process is as follows：
1) the input vector data using how subnormal divide-shut brake data as study and test；
2) d is setoFor desired output as a result, i.e. normal separating brake when d1=1 and d2=0, d when normally closing a floodgate1=0 and d2=1；
3) network is entered data into, obtains corresponding output result y (y1、y2)；
If 4) export result y and desired output result doIt is not inconsistent, then calculation error, error-duration model is corrected into weights W；
5) 1 to 4 process is iteratively repeated, until network output result is consistent with desired output result, to determine final weights
W；
6) final network is tested using test data, checks whether output result and expected results are identical, finally
Determine the correctness of BP networks.
After device bringing normally into operation, open type high-voltage disconnecting switch on-Line Monitor Device uses timing wake-up operating mode.Call out
When waking up, whether monitoring has the instruction of disconnecting switch breaking-closing operating, if receiving breaking-closing operating instruction, then puts into sensing module
Gather disconnecting switch left and right side static contact finger displacement signal during divide-shut brake, distance signal between dynamic/static contact, static contact temperature
Signal, and record data.As shown in figure 4, with the progress of disconnecting switch making process in making process, disconnecting switch is left, right
Side static contact finger displacement SL、SRGradually increase, distance H is gradually reduced between dynamic/static contact, and static contact temperature is unchanged.It is on the contrary then be
Sub-switching operation data variation process.After each sensing data stabilization, device assert that divide-shut brake process is completed.Device according to point
The data gathered in making process, draw fingertip displacement, the song that the data such as distance, temperature change over time between dynamic/static contact
Line.According to data and curves extraction initial time and the static contact finger displacement data S at moment of endingL1、SL2、SR1、SR2With dynamic/static contact it
Between range data H1、H2And the changing value Δ S of static contact finger displacementL、ΔSR, as disconnecting switch divide-shut brake mechanical movement
Characteristic parameter.Input data using characteristic parameter as BP neural network data fusion method, using having completed to learn and surveyed
The network algorithm of examination carries out data analysis, according to output result y (y1、y2) judge disconnecting switch opening and closing state, and result is led to
Cross on wireless network and give comprehensive IED devices, be finally uploaded to integrated monitoring backstage.
When disconnecting switch be under "on" position and switch in put into operation state when, disconnecting switch on-Line Monitor Device timing
Gather the temperature signal T of isolating switch static contact fingerwAnd environment temperature T0, this group of disconnecting switch phase is obtained by comprehensive IED devices
Operating load electric current I.By above-mentioned algorithm, disconnecting switch on-Line Monitor Device extrapolates virtual resistance R ' by monitoring the change of R '
Change, can reflect the variation tendency of the contact resistance R between sound fingertip, if R ' has the trend of increase, but device is sentenced
Disconnected disconnecting switch combined floodgate mechanical features is good, then it can be assumed that disconnecting switch sound fingertip contact surface degree of oxidation or gradation for surface pollution
Increase, and analysis result sent to comprehensive IED devices by cordless communication network, and it is final on send to integrated monitoring
Platform, its principle are as follows：
Core changing factor between sound fingertip is contact resistance R, flows through the electric current work done between sound fingertip
It is completely used for producing heat, QR=I2R.Caused heat shows as the temperature rise Q of disconnecting switch conductorw, but due to keeping apart
Temperature rise can be had some impact in open air, its local environment temperature, Changes in weather by closing.It is mainly shown as that convection gas causes
The loss Q of heatcAnd radiation Q of the heat from high temp objects to low level objectr.Its equation of heat balance is：
Qw=QR-Qc+Qr
QR=I2R
Qc=ac(Tw-T0)Fc
Wherein acRepresent convection transfer rate, TwFingertip surface temperature, T0Ambient air temperature, FcUnit length heat-transfer surface
Product, ε conductor material radiation coefficients.Wherein due to switching the heat exchange area F under any statecRemain unchanged, therefore set it to be
One constant, and calculated not based on disconnecting switch exact shape.Relational expression between the current-carrying capacity I and resistance R that finally obtain is：
Because F in formulacTo set constant, and the actual heat dissipation area of non-switch, therefore obtained R ' is not isolation
Real contact resistance R between switch sound fingertip, but it can characterize the variation tendency of resistance R.
The application further simultaneously discloses a kind of online prison based on aforementioned open formula high voltage isolator on-Line Monitor Device
Survey method, the monitoring method comprise the following steps：
Step 1：Judge whether open type high-voltage disconnecting switch on-Line Monitor Device is to keep apart for the first time installed in the model
Shut, if it is carry out how subnormal breaking-closing operating for disconnecting switch, and gather left and right side stationary contact during divide-shut brake
Refer to displacement signal SLAnd SR, distance signal H between dynamic/static contact, and static contact finger surface temperature signal Tw, extract initial time and end
Moment left and right side static contact finger displacement SL1、SR1、SL2、SR2, the data H of dynamic/static contact spacing1、H2And initial time and end of a period
The changing value Δ S of moment left and right side static contact finger displacement dataLWith Δ SRDeng characteristic parameter, and using characteristic quantity as BP neural network
Input vector, divide-shut brake result as desired output as a result, training and test b P neutral nets, when the network output result with
When expected result error is less than setting value, judges learning success, obtain final weights W, at this time open type high-voltage disconnecting switch shape
State monitoring device possesses the ability of detection and isolation switch opening and closing state.
Step 2：After open type high-voltage disconnecting switch on-Line Monitor Device bringing normally into operation, open type high-voltage disconnecting switch is online
After monitoring device receives monitored isolator operation instruction, start sensing module, continuous acquisition disconnecting switch divide-shut brake mistake
Journey middle left and right side static contact finger displacement signal, distance signal between dynamic/static contact, static contact finger surface temperature signal；
Step 3：Left and right side static contact finger displacement variable is drawn, distance change amount between dynamic/static contact, static contact finger surface temperature
The curve map that degree variable quantity is changed based on time t；
Step 4：According to 4 curve maps are drawn, particular moment left and right sides static contact finger displacement, the number of dynamic/static contact spacing are extracted
According to this and the initial moment is operated with operating the changing value for the moment disconnecting switch left and right side static contact finger displacement that ends；
Step 5, using the data fusion method of BP neural network, passes through L- using extracted characteristic parameter as input array
MBP algorithms, result y (y are exported according to algorithm1、y2) judge disconnecting switch opening and closing state result；
Step 6：The diagnostic result of acquisition is sent to comprehensive IED by zigbee wireless networks；
Step 7：When high voltage isolator is in run with load state, open type high-voltage disconnecting switch on-Line Monitor Device
Gather static contact finger temperature TwDelta data, and the load parameter electric current I of this circuit is obtained from comprehensive IED, according to load parameter
Electric current I and static contact finger temperature Tw, environment temperature T0Multi-data fusion calculating is carried out etc. data, is obtained for sound fingertip contact electricity
The dummy contact resistance R ' of R is hindered, sound fingertip surface oxidation trend is reflected by the change of R ', and result is uploaded to synthesis
IED。
Applicant is described in detail and describes to the embodiment of the present invention with reference to Figure of description, but this area skill
Art personnel are it should be understood that above example is only the preferred embodiments of the invention, and explanation is intended merely to help reader in detail
More fully understand that the present invention is spiritual, and not limiting the scope of the invention, on the contrary, any invention essence based on the present invention
Any improvement or modification that god is made should all be fallen within the scope and spirit of the invention.
Claims (10)
1. a kind of open type high-voltage disconnecting switch on-Line Monitor Device, including sensing module, central primary control module, inductive power supply
Power supply module；It is characterized in that：
Central primary control module is installed on the high-pressure conductive arm of open type high-voltage disconnecting switch, and sensing module is installed on high_voltage isolation
On switch static contact, inductive power supply power supply module is installed at high voltage isolator lead；High pressure is gathered by sensing module
Parameter, that is, gathered data during disconnecting switch divide-shut brake, and it is uploaded to central control module；Central primary control module is according to connecing
Received parameter, detection and isolation switch opening and closing state and operating status, and result is sent to comprehensive intelligence by Wi-Fi
Can the i.e. comprehensive IED of power monitoring equipment；Inductive power supply power supply module provides power supply for central primary control module.
2. open type high-voltage disconnecting switch on-Line Monitor Device according to claim 1, it is characterised in that：
The sensing module is made of 2 changing sensors, 1 displacement sensor, 1 temperature sensor；
2 changing sensors are separately mounted on the arranged on left and right sides static contact finger of high voltage isolator, for monitoring static contact finger
Displacement signal；
Institute's displacement sensors are installed on high-voltage isolating switch static contact head, for monitor between moving contact and fixed contact of isolating switch away from
From signal；
The temperature sensor is installed on high-voltage isolating switch static contact head, for monitoring static contact isolation switch temperature signal.
3. open type high-voltage disconnecting switch on-Line Monitor Device according to claim 1 or 2, it is characterised in that：
The gathered data monitored is uploaded to central master by the changing sensor, displacement sensor, temperature sensor respectively
Module is controlled, wherein the gathered data includes displacement signal, distance signal and temperature signal.
4. open type high-voltage disconnecting switch on-Line Monitor Device according to claim 1, it is characterised in that：
The central primary control module is interior by signal condition unit, data processing unit, Power Management Unit, wireless communication unit
Put lithium battery group composition；
The signal condition unit is sent to data after sensing module gathered data is carried out conditioning amplification and analog-to-digital conversion
Manage unit；
The data processing unit is realized to high voltage isolator divide-shut brake shape for reception of the completion to gathered data, record
State diagnoses and the diagnosis of the degree of oxidation of high voltage isolator sound fingertip contact surface, and will be sent on diagnostic result to comprehensive IED；
The Power Management Unit connection inductive power supply power supply module realizes the power supply pipe to sensing module, central primary control module
Reason.
5. open type high-voltage disconnecting switch on-Line Monitor Device according to claim 4, it is characterised in that：
The data processing unit for reception of the completion to gathered data, record and draws disconnecting switch according to gathered data
Each time-based change curve of sensing data during divide-shut brake, the stationary contact according to change curve extraction particular point in time
Refer to the changing value of static contact finger displacement before and after range data, and disconnecting switch separating brake between displacement data and dynamic/static contact, make
For the characteristic parameter of disconnecting switch divide-shut brake mechanical movement；Using the characteristic parameter of disconnecting switch divide-shut brake mechanical movement as BP god
Through networks most according to fusion method input data, disconnecting switch opening and closing state is differentiated by exporting result.
6. open type high-voltage disconnecting switch on-Line Monitor Device according to claim 4 or 5, it is characterised in that：
The Power Management Unit is respectively connected to inductive power supply power supply module and central primary control module internal battery two-way power supply,
Power Management Unit switches power supply source according to disconnecting switch operating status；When disconnecting switch is in put into operation state and disconnecting switch
When main circuit current is more than 5A, power supply is switched to inductive power supply power supply module by Power Management Unit, works as disconnecting switch
Power supply is switched to the power supply of internal battery group by Power Management Unit during in stand-by state or during off-state.
7. open type high-voltage disconnecting switch on-Line Monitor Device according to claim 6, it is characterised in that：The power supply pipe
Manage unit to instruct according to data acquisition unit, the power supply to sensing module is put into or rupturing operation；When disconnecting switch into
During row breaking-closing operating, send and instruct from data processing unit to Power Management Unit, Power Management Unit input sensing module
Current supply circuit, sensing module current supply circuit, only retention data processing unit current supply circuit are cut off after the completion of breaking-closing operating.
8. open type high-voltage disconnecting switch on-Line Monitor Device according to claim 6, it is characterised in that：
Disconnecting switch opening and closing state that the wireless communication unit is obtained central primary control module using 2.4G communications bands and
Operating status diagnostic result is uploaded to comprehensive IED.
9. open type high-voltage disconnecting switch on-Line Monitor Device according to claim 1, it is characterised in that：
The inductive power supply power supply module realizes that sensing takes electricity using permalloy steel band and air core coil, uses permalloy
Primary Conductor is wound, then passes through air core coil, it is final that permalloy steel band both ends are fixed together using buckle, form one
The sensing device of a non-closed magnetic circuit, by sensing through the electric current in major loop of the device, obtains electric energy, air core coil
Induced electromotive force caused by both ends, by conducting wire after rectifying and wave-filtering, is conveyed to Power Management Unit.
10. a kind of open type high-voltage disconnecting switch state device based on described in claim 1-9 any claims is online
Monitoring method, it is characterised in that the monitoring method comprises the following steps：
Step 1：Judge whether open type high-voltage disconnecting switch on-Line Monitor Device is to be installed on for the first time in the model disconnecting switch,
If it is how subnormal breaking-closing operating is carried out for disconnecting switch, and gathers left and right side static contact finger position during divide-shut brake
Shifting signal SLAnd SR, distance signal H between dynamic/static contact, and static contact finger surface temperature signal Tw, when extraction initial time is with ending
Carve left and right side static contact finger displacement SL1、SR1、SL2、SR2, the data H of dynamic/static contact spacing1、H2And initial time and end of a period moment
The changing value Δ S of left and right side static contact finger displacement dataLWith Δ SRDeng characteristic parameter, and using characteristic quantity as the defeated of BP neural network
Incoming vector, divide-shut brake result is as desired output as a result, training and test b P neutral nets, when network output result and it is expected
When resultant error is less than setting value, judges learning success, obtain final weights W, open type high-voltage disconnecting switch is supervised online at this time
Survey the ability that device possesses detection and isolation switch opening and closing state；
Step 2：After open type high-voltage disconnecting switch on-Line Monitor Device bringing normally into operation, open type high-voltage disconnecting switch on-line monitoring
After device receives the instruction of monitored isolator operation, start sensing module, during continuous acquisition disconnecting switch divide-shut brake
Left and right side static contact finger displacement signal, distance signal between dynamic/static contact, static contact finger surface temperature signal；
Step 3：Left and right side static contact finger displacement variable is drawn, distance change amount between dynamic/static contact, static contact finger surface temperature becomes
The curve map that change amount is changed based on time t；
Step 4：According to 4 curve maps are drawn, extract particular moment left and right sides static contact finger displacement, the data of dynamic/static contact spacing with
And operation initial moment and the changing value of operation end of a period moment disconnecting switch left and right side static contact finger displacement；
Step 5, using the data fusion method of BP neural network, passes through L-MBP using extracted characteristic parameter as input array
Algorithm, result judgement disconnecting switch opening and closing state result is exported according to algorithm；
Step 6：The diagnostic result of acquisition is sent to comprehensive IED by zigbee wireless networks；
Step 7：When high voltage isolator is in run with load state, the collection of open type high-voltage disconnecting switch on-Line Monitor Device
Static contact finger temperature TwDelta data, and the load parameter electric current I of this circuit is obtained from comprehensive IED, according to load parameter electric current I
And static contact finger temperature Tw, environment temperature T0Multi-data fusion calculating is carried out etc. data, obtains the change for sound fingertip contact resistance
Change, reflect sound fingertip surface oxidation trend, and result is uploaded to comprehensive IED.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594110A (en) * | 2018-04-28 | 2018-09-28 | 国网江苏省电力有限公司电力科学研究院 | A kind of vibration of GIS isolation switch contacts and displacement detector |
| CN109143060A (en) * | 2018-10-22 | 2019-01-04 | 西安超鹏智能科技有限公司 | A kind of disconnecting switch location status monitoring system and its monitoring method |
| CN109655743A (en) * | 2018-12-30 | 2019-04-19 | 珠海多监测科技有限公司 | A kind of opening and closing state detection method and device of disconnecting switch |
| CN111044890A (en) * | 2019-11-22 | 2020-04-21 | 国网浙江省电力有限公司嘉兴供电公司 | Comprehensive test device and method for high-voltage circuit breaker based on ubiquitous power Internet of things |
| CN111157882A (en) * | 2019-12-26 | 2020-05-15 | 华电电力科学研究院有限公司 | Method for monitoring closing and opening states of generator outlet circuit breaker |
| CN112129498A (en) * | 2019-06-25 | 2020-12-25 | 平高集团有限公司 | Scissor type isolating switch and transmission difference detection method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2788273Y (en) * | 2005-01-24 | 2006-06-14 | 谢东阳 | High voltage electric power circuit distant monitoring terminal |
| CN201540356U (en) * | 2009-11-16 | 2010-08-04 | 山东电力设备厂 | Intelligent isolating switch on-line monitoring device |
| CN201654190U (en) * | 2010-04-20 | 2010-11-24 | 武汉新电电气技术有限责任公司 | Dynamic characteristic tester of high-tension switch |
| US8664959B2 (en) * | 2010-02-24 | 2014-03-04 | Eht International Inc. | Mobile system for measuring abnormality detection parameters of a switch in a high voltage electrical substation |
| CN103954909A (en) * | 2014-04-23 | 2014-07-30 | 国家电网公司 | Intelligent high-voltage switch assembly on-site test method |
| CN105222935A (en) * | 2015-09-25 | 2016-01-06 | 国家电网公司 | High-voltage isolating switch sensing finger pressure wireless detection device |
| CN105572581A (en) * | 2016-02-26 | 2016-05-11 | 北京永安美电气科技有限公司 | Online detection system and online detection method for isolating switch |
| CN106019131A (en) * | 2016-05-18 | 2016-10-12 | 四川大学 | State comprehensive evaluation method for high-voltage circuit breaker operating mechanism based on switching-on and switching-off coil currents |
| CN106441618A (en) * | 2016-09-28 | 2017-02-22 | 国网江苏省电力公司电力科学研究院 | Contact type passive wireless monitor for abnormal heating of through-flow loop of high-voltage disconnecting switch |
-
2017
- 2017-10-31 CN CN201711042446.0A patent/CN107907825B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2788273Y (en) * | 2005-01-24 | 2006-06-14 | 谢东阳 | High voltage electric power circuit distant monitoring terminal |
| CN201540356U (en) * | 2009-11-16 | 2010-08-04 | 山东电力设备厂 | Intelligent isolating switch on-line monitoring device |
| US8664959B2 (en) * | 2010-02-24 | 2014-03-04 | Eht International Inc. | Mobile system for measuring abnormality detection parameters of a switch in a high voltage electrical substation |
| CN201654190U (en) * | 2010-04-20 | 2010-11-24 | 武汉新电电气技术有限责任公司 | Dynamic characteristic tester of high-tension switch |
| CN103954909A (en) * | 2014-04-23 | 2014-07-30 | 国家电网公司 | Intelligent high-voltage switch assembly on-site test method |
| CN105222935A (en) * | 2015-09-25 | 2016-01-06 | 国家电网公司 | High-voltage isolating switch sensing finger pressure wireless detection device |
| CN105572581A (en) * | 2016-02-26 | 2016-05-11 | 北京永安美电气科技有限公司 | Online detection system and online detection method for isolating switch |
| CN106019131A (en) * | 2016-05-18 | 2016-10-12 | 四川大学 | State comprehensive evaluation method for high-voltage circuit breaker operating mechanism based on switching-on and switching-off coil currents |
| CN106441618A (en) * | 2016-09-28 | 2017-02-22 | 国网江苏省电力公司电力科学研究院 | Contact type passive wireless monitor for abnormal heating of through-flow loop of high-voltage disconnecting switch |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594110A (en) * | 2018-04-28 | 2018-09-28 | 国网江苏省电力有限公司电力科学研究院 | A kind of vibration of GIS isolation switch contacts and displacement detector |
| CN109143060A (en) * | 2018-10-22 | 2019-01-04 | 西安超鹏智能科技有限公司 | A kind of disconnecting switch location status monitoring system and its monitoring method |
| CN109655743A (en) * | 2018-12-30 | 2019-04-19 | 珠海多监测科技有限公司 | A kind of opening and closing state detection method and device of disconnecting switch |
| CN112129498A (en) * | 2019-06-25 | 2020-12-25 | 平高集团有限公司 | Scissor type isolating switch and transmission difference detection method thereof |
| CN111044890A (en) * | 2019-11-22 | 2020-04-21 | 国网浙江省电力有限公司嘉兴供电公司 | Comprehensive test device and method for high-voltage circuit breaker based on ubiquitous power Internet of things |
| CN111044890B (en) * | 2019-11-22 | 2022-03-15 | 国网浙江省电力有限公司嘉兴供电公司 | Comprehensive test device and method for high-voltage circuit breaker based on ubiquitous power Internet of things |
| CN111157882A (en) * | 2019-12-26 | 2020-05-15 | 华电电力科学研究院有限公司 | Method for monitoring closing and opening states of generator outlet circuit breaker |
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