CN107102259A - A kind of State-Inspect of High-Voltage Circuit method and system of Multi-information acquisition - Google Patents
A kind of State-Inspect of High-Voltage Circuit method and system of Multi-information acquisition Download PDFInfo
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- CN107102259A CN107102259A CN201710274363.8A CN201710274363A CN107102259A CN 107102259 A CN107102259 A CN 107102259A CN 201710274363 A CN201710274363 A CN 201710274363A CN 107102259 A CN107102259 A CN 107102259A
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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
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Abstract
The present invention discloses a kind of State-Inspect of High-Voltage Circuit method and system of Multi-information acquisition, in use, determining the relation curve between the open and close times and tripping current of breaker contact point permission according to the specified drop-out current and rupturing capacity of breaker first；Then after each breaker cut-offs, based on relation curve calculating breaker, the corresponding proportion of goods damageds are cut-off in this time；The proportion of goods damageds cut-off every time are added up again, current total losses rate is obtained；If whether current total losses rate reaches warning value, generation contact of breaker abrasion alarm data；The current total losses rate of breaker and contact of breaker are finally worn and torn into alarm data with protecting measuring and control data to be fused to same IEC61850 model datas, monitoring backstage is above delivered to.The present invention can improve the precision of circuit-breaker status on-line monitoring to a certain extent, the access quantity of transformer station's station level equipment be reduced, so as to reduce the O＆M cost of transformer station.
Description
Technical field
The present invention relates to technical field of electric power automation, the State-Inspect of High-Voltage Circuit method of particularly a kind of Multi-information acquisition
And system.
Background technology
The normal influence on system operation of breaker the overall stable operation of transformer station, the time between overhauls(TBO) general root of breaker apparatus
The open and close times that are there is provided according to producer are determined.At present to the status monitoring of primary equipment mainly by means of various sensors, with
The deep popularization of domestic intelligent substation technology, stand in transformer, GIS switch etc. primary equipment state on-line monitoring and maintenance
Technology is stablized and ripe increasingly.IEC61850 establishments of standard cause the State-Inspect of High-Voltage Circuit smart electronicses of transformer station's wall
Facility information can be embedded into IED performances description (ICD) file for meeting IEC61850 specifications, and by being communicated with station level
Complete primary equipment status information it is real-time on give so that realize condition monitoring device automation and monitoring information variation,
Realize transformation of the primary equipment from periodic inspection to repair based on condition of component simultaneously.
State Grid Corporation of China's issue in 2012《Transformer monitors I1 interface network communication specifications on-line》With《Power transformation is set
Standby on-line monitoring I2 interface network communication specifications》Two normative documents, are modeled with leading to equipment Condition Monitoring System in transformer station
The content and mode that information is exchanged between letter and transformer station and main website are illustrated.Wherein, specification I1 is in station all kinds of one
IEC61850 models and service needed for secondary device status monitoring are standardized；Specification I2 then defines transformer substation side state
Data communication protocol between Access Control end (CAC) and main website side state access webmaster machine (CAG).The issue of the two specifications
There is positive impetus to the development of domestic standing state monitoring technology.
Therefore, problems with is worth research in transformer station：
(1) algorithm of each producer on-line monitoring is different, and its actual monitoring effect to equipment needs further raising；
(2) multiple on-line monitoring IED equipment are configured and not only cause interior cost increase of standing, station level network is also affected
Stability.The IED equipment such as on-line monitoring, protection, observing and controlling whole access station control layer networks, this stability to existing network is present
Certain influence, if on-Line Monitor Device certainly will increase the Construction and operation cost of transformer station with system independence networking.
Breaker on-line monitoring function existing application mainly realized by breaker intelligent assembly, general breaker
On-line monitoring function, which mainly monitors SF6 micro- water and density and breaker point ,/current waveform, point/during zygonema switch closes a floodgate
Time, stroke-time graph and energy storage motor working condition etc..Some then by the tripping current of breaker is carried out accumulation and
Judge, calculate the electric life of breaker.
MMS (Manufacturing Message Specification), manufactures message specification.
The content of the invention
The technical problem to be solved in the present invention is that the information point such as action current, action frequency is carried out during to circuit breaker trip
Fusion is assessed, and realizes monitoring and early warning to the contact of breaker life-span, and believe the monitoring of breaker by IEC61850 models
Breath is sent on carrying out, and reduces the access quantity of station level equipment, improves the on-line monitoring precision of circuit-breaker status, reduction transformer station
O＆M cost.
The technical scheme that the present invention takes is specially：A kind of State-Inspect of High-Voltage Circuit method of Multi-information acquisition, including：
S1, according to the specified drop-out current and rupturing capacity of breaker, determine open and close times that breaker contact point allows with
Relation curve between tripping current；
S2, the relation curve determined based on S1, after each breaker cut-offs, this time of calculating breaker, which is cut-off, respectively causes
The proportion of goods damageds；
S3, breaker is cut-off every time the proportion of goods damageds caused and added up, and obtains current total losses rate；
S4, sets the warning value of current total losses rate, judges whether current total losses rate reaches warning value, given birth to if reaching
Into contact of breaker abrasion alarm data；
S5, sets up SCBR logical nodes in IEC61850 models, for recording the current of each breaker in three-phase line
Total losses rate and contact of breaker abrasion alarm data；
S6, the IEC61850 pattern numbers that fusion is had to the current total losses rate of breaker and contact of breaker abrasion alarm data
According to above delivering to station level monitoring backstage.
In the present invention, the specified drop-out current of breaker, rupturing capacity are all provided by breaker manufacturer, can rule of thumb base
In known breaker drop-out current and rupturing capacity, carry out under different tripping currents can division number of operations setting.Due to
The loss that closing operation is brought to contact of breaker is smaller, therefore the present invention carries out contact wear only for the operation of cut-offfing of breaker
Analysis.The status monitoring of breaker is monitored functional unit on-line by the integrated breaker of protection supervisory equipment of wall and realized,
Breaker monitors functional unit on-line by connecting breaker auxiliary contact and setting transformer to realize circuit-breaker status parameter
Obtain.Step S2 to S6 of the present invention realization is all completed by protection supervisory equipment.
It is preferred that, S1 includes：
According to the specified drop-out current and rupturing capacity of breaker, three tripping current interval [0~I are set1]、[I1~
I2]、[I2~I3], wherein I1<I2<I3, I1For breaker minimum trip electric current, I2For middle tripping current, I3For maximum tripping operation electricity
Stream；Set three tripping current I1、I2、I3The open and close times N that lower breaker allows1、N2、N3；
The log values for the open and close times that the log values of tripping current are allowed as abscissa, breaker are sat as ordinate
Three point P1 [logI in mark system1, logN1]、P2[logI2, logN2]、P2[logI3, logN3] it is used as description breaker contact point
The point of relation curve, tie point P1, P2, P3 between the open and close times and tripping current of permission, that is, form breaker contact point permission
Open and close times and tripping current between relation curve.
It is preferred that, in S1, open and close times N1, N2, N3 that breaker allows size under three tripping currents I1, I2, I3
Relation is：N1<N2<N3.I.e. tripping current is bigger, cut-offs that the contact wear brought is also bigger accordingly, breaker it is operable
Number of times is also fewer.Specifically can rule of thumb it set.Wherein [0~I1] is interval interior, and N is fixed value, i.e., tripping current is less than I1
When, it is identical that breaker cut-offs the contact wear brought every time；When I is more than I3, N is 1, i.e., when drop-out current is more than I3, open circuit
Current total losses rate after device cut-offs once reaches 100%, should now alert.
Three tripping currents I1, I2, I3 in S1, and its open and close times N1, N2, N3 that lower breaker allows, being can be whole
Definite value, is set by user by the human-computer interaction interface of wall protection supervisory equipment.
In S2, each breaker cut-offs corresponding breaker proportion of goods damageds W (I) and is：
W (I)=K/Iα
Wherein, W (I) is 100%, I to the maximum and represents circuit breaker trip current value, and K represents that the corresponding relations of tripping current I are bent
Line gain coefficient, α represents the corresponding relation curve slopes of tripping current I.
Then for the relation curve section between P1 and P2 points：
K1=I1 α/N1
If the relation curve line segment that tripping current I correspondences P1 when certain cut-offs is connected with P2 points, this time cut-offs and causes
The breaker proportion of goods damageds be：
W (I)=K1/Iα1
When can similarly push away the relation curve line segment that tripping current correspondence P2 is connected with P3 points, breaker cut-offs the open circuit caused
The device proportion of goods damageds.
The current total losses rate for defining breaker is Q, and n represents current total tripping times, W (I)mRepresent the m times tripping operation
The proportion of goods damageds caused, then have：
In S3, after breaker cut-offs every time, the current total losses rate of breaker is calculated：Current total losses rate=this
Cut-off the aggregate-value that the proportion of goods damageds+this former breaker caused cut-offs the proportion of goods damageds caused.Current total losses rate i.e. of the invention
Calculating use accumulation method, the computational load of device can be reduced, after each breaker cut-offs, this proportion of goods damaged is calculated, and
It is added, is preserved as current total losses rate with the proportion of goods damageds accumulated after breaker beginning last time, so that next breaker is opened
When disconnected, cut-off the proportion of goods damageds caused with next time and accumulated, until current total losses rate reaches that 100% sends alarm.This hair
The calculating of the bright proportion of goods damageds is realized that wall protection supervisory equipment directly passes through the auxiliary of breaker by wall protection supervisory equipment
Contact and transformer collection breaker cut-off status data and tripping current data, to realize the online prison to breaker
Survey.
In S4, in order to more timely take counter-measure when breaker is lost, the warning value of current total losses rate
Scope is 90%~100%.Also the warning value that current total losses rate can be directly disposed as is 100%.
In S5, the SCBR logical nodes set up in IEC61850 models include SCBR1, SCBR2 and SCBR3 node, point
A phases in three-phase line Dui Ying not recorded, the current total losses rate of breaker and contact of breaker abrasion alarm number in B phases and C phases
According to.
In S6, IEC61850 model datas are serviced and deliver to station level monitoring backstage by protection supervisory equipment by MMS.Most
The IEC61850 models that monitoring backstage is delivered on end both contain protection observing and controlling information, and breaker loss and alarm letter are contained again
Breath, that is, realize and substation information more fully monitored in real time, monitoring accuracy is higher, and without in station level increase equipment access
Quantity.
The present invention also provides a kind of state monitoring system for circuit breaker of Multi-information acquisition, including：
Relation curve fitting module, according to the specified drop-out current and rupturing capacity of breaker, determines that breaker contact point is opened
Disconnected relation curve between number of times and tripping current；
Breaker cut-offs loss calculation module, the relation curve determined based on S1, after each breaker cut-offs, counts respectively
This time of calculation breaker, which is cut-off, causes the proportion of goods damageds；
Current total losses rate computing module, breaker is cut-off every time the proportion of goods damageds caused and added up, and obtains current total
The proportion of goods damageds；
Total losses rate alarm module, sets the warning value of current total losses rate, judges whether current total losses rate reaches announcement
Alert value, generates contact of breaker abrasion alarm data if reaching；
Logical node sets up module, SCBR logical nodes is set up in IEC61850 models, for recording in three-phase line
Current total losses rate and contact of breaker the abrasion alarm data of each breaker；
And module is sent in model data, fusion there are into the current total losses rate of breaker and contact of breaker abrasion alarm number
According to IEC61850 model datas, above deliver to station level monitoring backstage.
Further, relation curve fitting module is it is determined that between the open and close times and tripping current that breaker contact point allows
Relation curve when：
User is obtained according to the specified drop-out current and rupturing capacity of breaker, three tripping current intervals of setting [0~
I1]、[I1~I2]、[I2~I3], wherein I1<I2<I3, I1For breaker minimum trip electric current, I2For middle tripping current, I3For most
Big tripping current；Set three tripping current I1、I2、I3The open and close times N that lower breaker allows1、N2、N3；
The open and close times that relation curve fitting module allows the log values of tripping current as abscissa, breaker contact point
Log values as ordinate, three point P1 [logI in coordinate system1, logN1]、P2[logI2, logN2]、P2[logI3,
logN3] as description breaker contact point allow open and close times and tripping current between relation curve point, tie point P1, P2,
P3, that is, the relation curve formed between the open and close times and tripping current of breaker contact point permission.
Further, each breaker cut-offs corresponding breaker proportion of goods damageds W (I) and is：
W (I)=K/Iα
Wherein, W (I) is 100%, I to the maximum and represents circuit breaker trip current value, and K represents that the corresponding relations of tripping current I are bent
Line gain coefficient, α represents the corresponding relation curve slopes of tripping current I.
The current total losses rate for defining breaker is Q, and n represents current total tripping times, W (I)mRepresent the m times tripping operation
The proportion of goods damageds caused, then have：
Beneficial effect
The present invention has advantages below and progress：
(1) it is not used in wall and is independently accessed breaker on-Line Monitor Device again.
(2) can be in trip protection or remote control separating brake, electric current during accurate recording separating brake simultaneously stores carry out breaker
Electrical wear ratio is calculated；
(3) can by the electrical wear situation of breaker it is real-time on send monitoring backstage to be checked for operation maintenance personnel.
The present invention proposes the integrated breaker on protection supervisory equipment from engineer applied and device hardware configuration angle
Monitor function on-line, the fusion of the information point such as action current, action frequency is assessed during by breaker point/combined floodgate, realization pair
The monitoring and early warning in contact of breaker life-span, and protection that the status information of breaker and device are collected, observing and controlling information melt
Close on same IEC61850 models and serviced by MMS and send monitoring backstage, finally realize to the real-time of substation information
Function for monitoring.The present invention reduces the access quantity of station level equipment to a certain extent, improves the online of circuit-breaker status
Monitoring accuracy, reduces the O＆M cost of transformer station.
Brief description of the drawings
Fig. 1 show the inventive method schematic flow sheet；
Fig. 2 show the relation curve schematic diagram of an embodiment of the present invention；
Fig. 3 show protection supervisory equipment IEC61850 model framework schematic diagrames of the present invention.
Embodiment
Further described below in conjunction with the drawings and specific embodiments.
Embodiment 1
With reference to Fig. 1, the State-Inspect of High-Voltage Circuit method of Multi-information acquisition, including：
S1, according to the specified drop-out current and rupturing capacity of breaker, determine open and close times that breaker contact point allows with
Relation curve between tripping current；
S2, the relation curve determined based on S1, after each breaker cut-offs, this time of calculating breaker, which is cut-off, respectively causes
The proportion of goods damageds；
S3, breaker is cut-off every time the proportion of goods damageds caused and added up, and obtains current total losses rate；
S4, sets the warning value of current total losses rate, judges whether current total losses rate reaches warning value, given birth to if reaching
Into contact of breaker abrasion alarm data；
S5, sets up SCBR logical nodes in IEC61850 models, for recording the current of each breaker in three-phase line
Total losses rate and contact of breaker abrasion alarm data；
S6, the IEC61850 pattern numbers that fusion is had to the current total losses rate of breaker and contact of breaker abrasion alarm data
According to above delivering to station level monitoring backstage.
In the present invention, the specified drop-out current of breaker, rupturing capacity are all provided by breaker manufacturer, can rule of thumb base
In known breaker drop-out current and rupturing capacity, the setting of division number of operations under different tripping currents is carried out.Breaker
Status monitoring by the integrated breaker of protection supervisory equipment of wall monitor on-line functional unit realize, breaker on-line monitoring
Functional unit realizes the acquisition of circuit-breaker status parameter by connecting breaker auxiliary contact and setting transformer.Step of the present invention
S2 to S6 realization is all completed by protection supervisory equipment.
Include with reference to Fig. 2, S1：
According to the specified drop-out current and rupturing capacity of breaker, three tripping current interval [0~I are set1]、[I1~
I2]、[I2~I3], wherein I1<I2<I3, I1For breaker minimum trip electric current, I2For middle tripping current, I3For maximum tripping operation electricity
Stream；Set three tripping current I1、I2、I3The maximum operable times N of lower breaker1、N2、N3；
Using the log values of tripping current as abscissa, the log values of breaker division number of operations are used as ordinate, coordinate
Three point P1 [logI in system1, logN1]、P2[logI2, logN2]、P2[logI3, logN3] it is used as description breaker contact point point
The point of relation curve, tie point P1, P2, P3 between closing operation number of times and tripping current, that is, form breaker contact point division operation
Relation curve between number of times and tripping current.
In S1, maximum operable times N 1, N2, N3 magnitude relationship of breaker under three tripping currents I1, I2, I3
For：N1<N2<N3.I.e. tripping current is bigger, and the contact wear that corresponding division operation is brought is also bigger, operable time of breaker
Number is also fewer.Specifically can rule of thumb it set.Wherein [0~I1] is interval interior, and N is fixed value；When I is more than I3, N is 100%,
I.e. when tripping current is more than I3, the current total losses rate after breaker cut-offs once reaches 100%, should now alert.
Three tripping currents I1, I2, I3 in S1, and its lower breaker maximum operable times N 1, N2, N3, being can
Setting valve, is set by user by the human-computer interaction interface of wall protection supervisory equipment.
In S2, each breaker cut-offs corresponding breaker proportion of goods damageds W (I) and is：
W (I)=K/Iα
Wherein, W (I) is 100%, I to the maximum and represents circuit breaker trip current value, and K represents that the corresponding relations of tripping current I are bent
Line gain coefficient, α represents the corresponding relation curve slopes of tripping current I.
Then for the relation curve section between P1 and P2 points：
K1=I1 α/N1
If the relation curve line segment that tripping current I correspondences P1 when certain cut-offs is connected with P2 points, this time cut-offs and causes
The breaker proportion of goods damageds be：
W (I)=K1/Iα1
When can similarly push away the relation curve line segment that tripping current correspondence P2 is connected with P3 points, breaker cut-offs the open circuit caused
The device proportion of goods damageds.
The current total losses rate for defining breaker is Q, and n represents current total tripping times, W (I)mRepresent the m times tripping operation
The proportion of goods damageds caused, then have：
In S3, after breaker cut-offs every time, the current total losses rate of breaker is calculated：Current total losses rate=this
Cut-off the aggregate-value that the proportion of goods damageds+this former breaker caused cut-offs the proportion of goods damageds caused.Current total losses rate i.e. of the invention
Calculating use accumulation method, the computational load of device can be reduced, after each breaker cut-offs, this proportion of goods damaged is calculated, and
It is added, is preserved as current total losses rate with the proportion of goods damageds accumulated after breaker beginning last time, so that next breaker is opened
When disconnected, cut-off the proportion of goods damageds caused with next time and accumulated, until current total losses rate reaches that 100% sends alarm.This hair
The calculating of the bright proportion of goods damageds is realized that wall protection supervisory equipment gathers disconnected by process layer devices by wall protection supervisory equipment
Road device cut-offs status data and drop-out current data, to realize the on-line monitoring to breaker.
In S4, the warning value of current total losses rate is 100%, answering during in order to more timely take breaker to be lost
To measure, the warning value of current total losses rate can also be arranged in the range of 90%~100%.
With reference to Fig. 3, in S5, the SCBR logical nodes set up in IEC61850 models include SCBR1, SCBR2 and SCBR3
Node, corresponds to record the current total losses rate of breaker and contact of breaker abrasion in A phases, B phases and C phases in three-phase line respectively
Alarm data.
In S6, it is final on deliver to the IEC61850 models of monitoring backstage and both contain protection observing and controlling information, and comprising resolving
Road device loss and warning information, that is, realize and substation information more fully monitored in real time, monitoring accuracy is higher, and without at station
Control layer increase equipment access quantity.
Embodiment 2
Damage curve according to Fig. 2 sets definite value to join on the man-machine interaction liquid crystal panel of protection supervisory equipment
Number：P1 ＇ (1.2kA, 1000), P2 ＇ (8kA, 150), P3 ＇ (20kA, 12), CT no-load voltage ratios are 1200：1, breaker currently always weares and teares
The initial value of rate is 0, and breaker mechanism actuation time is set to 0.2s.
1) sub-switching operation is remotely controlled to device, without external protective current, proportion of goods damageds calculated value is as shown in table 1：
The abrasion monitoring of the remote-operated circuit breaker of table 1
2) protection device throw I section of excessively stream, act definite value be set to 4A, by taking A phase faults as an example, to P1-P2, P2-P3,>P3
This 3 kinds of current ranges choose 4 reference points and carry out fault test respectively,>P3 experimental tests number of times is 1 time, other experimental tests number of times
For 5 times.Error (%) in table=| active loss (%)-theoretical loss (%) |.Wherein active loss (%) is what device was recorded
Loss value, the loss value that theoretical loss (%) obtains for calculating.Result of the test is as shown in table 2：
The abrasion monitoring of the protection act breaker of table 2
As shown in Table 2, when the tripping current that device is got is more than P3 point current values, A phases, which are lost, to be directly reached
100%, at this moment protection supervisory equipment serviced by MMS and send AbrWrn warning information.
It is able to will be broken by protection supervisory equipment man-machine interaction liquid crystal panel or IEC61850 control service function OpCntRs
Road device status data recovers to initial value.
3) information such as the circuit breaker position, action current, the humiture that are collected according to protection supervisory equipment, in 61850 moulds
3 logical nodes of SCBR1 (A phases are monitored), SCBR2 (B phases are monitored) and SCBR3 (C phases are monitored) are set up in type, breaker is current
State of wear is serviced in real time by MMS and send monitoring backstage, is checked for operation maintenance personnel.SCBR logical node structures are as shown in table 3：
The SCBR logical node data objects of table 3
The present embodiment checking understands that the circuit-breaker status of Multi-information acquisition of the present invention is assessed and IEC61850 is built
Mould method is good to the Evaluated effect of the electrical wear state of breaker, the letter such as protection, observing and controlling of circuit-breaker status information and device
Breath is together serviced by MMS send monitoring backstage, can effectively reduce the workload of operation maintenance personnel.
Embodiment 3
A kind of state monitoring system for circuit breaker of Multi-information acquisition, including：
Relation curve fitting module, according to the specified drop-out current and rupturing capacity of breaker, determines that breaker contact point is permitted
Perhaps the relation curve between open and close times and tripping current；
Breaker cut-offs loss calculation module, the relation curve determined based on S1, after each breaker cut-offs, counts respectively
This time of calculation breaker, which is cut-off, causes the proportion of goods damageds；
Current total losses rate computing module, breaker is cut-off every time the proportion of goods damageds caused and added up, and obtains current total
The proportion of goods damageds；
Total losses rate alarm module, sets the warning value of current total losses rate, judges whether current total losses rate reaches announcement
Alert value, generates contact of breaker abrasion alarm data if reaching；
Logical node sets up module, SCBR logical nodes is set up in IEC61850 models, for recording in three-phase line
Current total losses rate and contact of breaker the abrasion alarm data of each breaker；
And module is sent in model data, fusion there are into the current total losses rate of breaker and contact of breaker abrasion alarm number
According to IEC61850 model datas, above deliver to station level monitoring backstage.
Further, relation curve fitting module is it is determined that between the open and close times and tripping current that breaker contact point allows
Relation curve when：
User is obtained according to the specified drop-out current and rupturing capacity of breaker, three tripping current intervals of setting [0~
I1]、[I1~I2]、[I2~I3], wherein I1<I2<I3, I1For breaker minimum trip electric current, I2For middle tripping current, I3For most
Big tripping current；Set three tripping current I1、I2、I3The maximum operable times N of lower breaker1、N2、N3；
Relation curve fitting module regard the log values of tripping current as abscissa, the log values of breaker division number of operations
As ordinate, three point P1 [logI in coordinate system1, logN1]、P2[logI2, logN2]、P2[logI3, logN3] conduct
The point of relation curve between breaker contact point division number of operations and tripping current is described, tie point P1, P2, P3 are formed disconnected
Relation curve between road device contact division number of operations and tripping current.
Further, each breaker cut-offs corresponding breaker proportion of goods damageds W (I) and is：
W (I)=K/Iα
Wherein, W (I) is 100%, I to the maximum and represents circuit breaker trip current value, and K represents that the corresponding relations of tripping current I are bent
Line gain coefficient, α represents the corresponding relation curve slopes of tripping current I.
The current total losses rate for defining breaker is Q, and n represents current total tripping times, W (I)mRepresent the m times tripping operation
The proportion of goods damageds caused, then have：
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
It should be understood by those skilled in the art that, embodiments herein can be provided as method, system or computer program
Product.Therefore, the application can be using the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the application can be used in one or more computers for wherein including computer usable program code
The computer program production that usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The application is the flow with reference to method, equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram are described.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Claims (10)
1. a kind of State-Inspect of High-Voltage Circuit method of Multi-information acquisition, it is characterized in that, including：
S1, according to the specified drop-out current and rupturing capacity of breaker, determines open and close times and the tripping operation of breaker contact point permission
Relation curve between electric current；
S2, the relation curve determined based on S1, after each breaker cut-offs, this time of calculating breaker, which is cut-off, respectively causes loss
Rate；
S3, breaker is cut-off every time the proportion of goods damageds caused and added up, and obtains current total losses rate；
S4, sets the warning value of current total losses rate, judges whether current total losses rate reaches warning value, is generated if reaching disconnected
Road device contact abrasion alarm data；
S5, sets up SCBR logical nodes in IEC61850 models, current total damage for recording each breaker in three-phase line
Consumption rate and contact of breaker abrasion alarm data；
S6, the IEC61850 model datas that fusion is had to the current total losses rate of breaker and contact of breaker abrasion alarm data,
On deliver to station level monitoring backstage.
2. according to the method described in claim 1, it is characterized in that, S1 includes：
According to the specified drop-out current and rupturing capacity of breaker, three tripping current interval [0~I are set1]、[I1~I2]、[I2
~I3], wherein I1<I2<I3, I1For breaker minimum trip electric current, I2For middle tripping current, I3For maximum tripping current；If
Fixed three tripping current I1、I2、I3The open and close times N that lower breaker allows1、N2、N3；
Using the log values of tripping current as abscissa, the log values of breaker division number of operations are as ordinate, in coordinate system
Three point P1 [logI1, logN1]、P2[logI2, logN2]、P2[logI3, logN3] allow as description breaker contact point
The point of relation curve, tie point P1, P2, P3 between open and close times and tripping current, that is, form cut-offfing for breaker contact point permission
Relation curve between number of times and tripping current.
3. method according to claim 2, it is characterized in that, three tripping currents I1, I2, I3 in S1, and its lower breaker
Open and close times N1, N2, N3 of permission, be can setting valve, by man-machine interaction circle of the user by wall protection supervisory equipment
Face is set.
4. method according to claim 2, it is characterized in that, in S2, each breaker cut-offs corresponding breaker proportion of goods damageds W
(I) it is：
W (I)=K/Iα
Wherein, W (I) is 100%, I to the maximum and represents circuit breaker trip current value, and K represents that the corresponding relation curves of tripping current I increase
Beneficial coefficient, α represents the corresponding relation curve slopes of tripping current I.
5. method according to claim 1 or 2, it is characterized in that, in S3, after breaker cut-offs every time, calculate open circuit
The current total losses rate of device：Current total losses rate=this cut-offs the proportion of goods damageds+this former breaker caused and cut-offs what is caused
The aggregate-value of the proportion of goods damageds.
6. method according to claim 1 or 2, it is characterized in that, in S4, the warning value scope of current total losses rate is 90%
~100%.
7. according to the method described in claim 1, it is characterized in that, in S5, the SCBR logic sections set up in IEC61850 models
Point includes SCBR1, SCBR2 and SCBR3 node, and the current of breaker in A phases, B phases and C phases is corresponded in record three-phase line respectively
Total losses rate and contact of breaker abrasion alarm data.
8. a kind of state monitoring system for circuit breaker of Multi-information acquisition, it is characterized in that, including：
Relation curve fitting module, according to the specified drop-out current and rupturing capacity of breaker, determines what breaker contact point allowed
Relation curve between open and close times and tripping current；
Breaker cut-offs loss calculation module, the relation curve determined based on S1, after each breaker cut-offs, and calculates disconnected respectively
Road this time of device, which is cut-off, causes the proportion of goods damageds；
Current total losses rate computing module, breaker is cut-off every time the proportion of goods damageds caused and added up, obtain current total losses
Rate；
Total losses rate alarm module, sets the warning value of current total losses rate, judges whether current total losses rate reaches warning value,
Contact of breaker abrasion alarm data is generated if reaching；
Logical node sets up module, and SCBR logical nodes are set up in IEC61850 models, each disconnected in three-phase line for recording
Current total losses rate and contact of breaker the abrasion alarm data of road device；
And send module in model data, will merge has the current total losses rate of breaker and contact of breaker abrasion alarm data
IEC61850 model datas, above deliver to station level monitoring backstage.
9. the state monitoring system for circuit breaker of Multi-information acquisition according to claim 8, it is characterized in that, relation curve fitting
Module it is determined that breaker contact point allow open and close times and tripping current between relation curve when：
User is obtained according to the specified drop-out current and rupturing capacity of breaker, three tripping current interval [0~I of setting1]、
[I1~I2]、[I2~I3], wherein I1<I2<I3, I1For breaker minimum trip electric current, I2For middle tripping current, I3For maximum
Tripping current；Set three tripping current I1、I2、I3The open and close times N that lower breaker allows1、N2、N3；
Relation curve fitting module is using the log values of tripping current as abscissa, and the log values of breaker open and close times are used as vertical seat
Three point P1 [logI in mark, coordinate system1, logN1]、P2[logI2, logN2]、P2[logI3, logN3] it is used as description open circuit
The point of relation curve, tie point P1, P2, P3 between open and close times and tripping current that device contact allows, that is, form breaker and touch
Relation curve between open and close times and tripping current that point allows.
10. the state monitoring system for circuit breaker of Multi-information acquisition according to claim 9, it is characterized in that, each breaker
Cut-offfing corresponding breaker proportion of goods damageds W (I) is：
W (I)=K/Iα
Wherein, W (I) is 100%, I to the maximum and represents circuit breaker trip current value, and K represents that the corresponding relation curves of tripping current I increase
Beneficial coefficient, α represents the corresponding relation curve slopes of tripping current I.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169671A (en) * | 2018-02-05 | 2018-06-15 | 日立电梯（中国）有限公司 | Contactor service life number Forecasting Methodology, device and computer equipment in elevator |
| CN109239591A (en) * | 2018-08-31 | 2019-01-18 | 浙江天正电气股份有限公司 | A kind of high precision breaker contact abrasion rate online test method |
| CN109752646A (en) * | 2017-11-03 | 2019-05-14 | 株洲中车时代电气股份有限公司 | Vehicular direct-current contactor evaluation and forewarning method, device, equipment |
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| CN114019366A (en) * | 2021-11-05 | 2022-02-08 | 苏州迪芬德物联网科技有限公司 | Electrical component contact loss evaluation method |
| CN116148657A (en) * | 2023-04-21 | 2023-05-23 | 浙江威利坚科技股份有限公司 | Electromagnetic leakage circuit breaker operation monitoring and diagnosing method |
| CN116609651A (en) * | 2023-07-20 | 2023-08-18 | 山东德源电力科技股份有限公司 | Detection method of multifunctional circuit breaker for photovoltaic |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06267365A (en) * | 1993-03-16 | 1994-09-22 | Hitachi Ltd | Preventive maintenance device for circuit breaker |
| CN201535814U (en) * | 2009-03-23 | 2010-07-28 | 华东电网有限公司 | On-line circuit breaker monitoring system based on IEC61850 standard |
| CN101819255A (en) * | 2010-04-16 | 2010-09-01 | 上海申瑞电力科技股份有限公司 | Nonlinear method for computing effective open and close times of breaker |
| CN201892729U (en) * | 2010-11-01 | 2011-07-06 | 广西中电新源电气有限公司 | Electric service life monitoring device of HGIS (hybrid gas insulated switchgear) circuit breaker |
| CN102759706A (en) * | 2012-06-25 | 2012-10-31 | 广西电网公司电力科学研究院 | Circuit breaker electrical endurance diagnosis system |
| CN104360262A (en) * | 2014-10-29 | 2015-02-18 | 国家电网公司 | Method for opening-closing coil current comparison of circuit breaker operating mechanisms on basis of feature points |
| CN106249141A (en) * | 2016-10-08 | 2016-12-21 | 武汉拓优测控科技有限公司 | Primary cut-out graphite contact wear detecting method |
-
2017
- 2017-04-25 CN CN201710274363.8A patent/CN107102259A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06267365A (en) * | 1993-03-16 | 1994-09-22 | Hitachi Ltd | Preventive maintenance device for circuit breaker |
| CN201535814U (en) * | 2009-03-23 | 2010-07-28 | 华东电网有限公司 | On-line circuit breaker monitoring system based on IEC61850 standard |
| CN101819255A (en) * | 2010-04-16 | 2010-09-01 | 上海申瑞电力科技股份有限公司 | Nonlinear method for computing effective open and close times of breaker |
| CN201892729U (en) * | 2010-11-01 | 2011-07-06 | 广西中电新源电气有限公司 | Electric service life monitoring device of HGIS (hybrid gas insulated switchgear) circuit breaker |
| CN102759706A (en) * | 2012-06-25 | 2012-10-31 | 广西电网公司电力科学研究院 | Circuit breaker electrical endurance diagnosis system |
| CN104360262A (en) * | 2014-10-29 | 2015-02-18 | 国家电网公司 | Method for opening-closing coil current comparison of circuit breaker operating mechanisms on basis of feature points |
| CN106249141A (en) * | 2016-10-08 | 2016-12-21 | 武汉拓优测控科技有限公司 | Primary cut-out graphite contact wear detecting method |
Non-Patent Citations (4)
| Title |
|---|
| 上海超高压输变电公司: "《变电设备检修 第2册》", 29 February 2008 * |
| 李刚 等: "智能GIS设备的信息流及其IEC61850建模", 《高压电器》 * |
| 李明怀 等编著: "《物理实验与数据处理 第一版》", 31 December 1990 * |
| 薛玉善: "永磁操动机构控制器的研制", 《中国优秀博硕士学位论文全文数据库(硕士) 工程科技Ⅱ辑》 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN109752646A (en) * | 2017-11-03 | 2019-05-14 | 株洲中车时代电气股份有限公司 | Vehicular direct-current contactor evaluation and forewarning method, device, equipment |
| CN108169671A (en) * | 2018-02-05 | 2018-06-15 | 日立电梯（中国）有限公司 | Contactor service life number Forecasting Methodology, device and computer equipment in elevator |
| CN109239591A (en) * | 2018-08-31 | 2019-01-18 | 浙江天正电气股份有限公司 | A kind of high precision breaker contact abrasion rate online test method |
| CN110568348A (en) * | 2019-08-15 | 2019-12-13 | 浙江正泰电器股份有限公司 | circuit breaker electric checking quality judgment method |
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| CN114019366A (en) * | 2021-11-05 | 2022-02-08 | 苏州迪芬德物联网科技有限公司 | Electrical component contact loss evaluation method |
| CN114019366B (en) * | 2021-11-05 | 2024-01-16 | 苏州迪芬德物联网科技有限公司 | Electrical component contact loss evaluation method |
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