CN108512312B - A kind of substation interval primary equipment running state analysis method - Google Patents
A kind of substation interval primary equipment running state analysis method Download PDFInfo
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- CN108512312B CN108512312B CN201810467005.3A CN201810467005A CN108512312B CN 108512312 B CN108512312 B CN 108512312B CN 201810467005 A CN201810467005 A CN 201810467005A CN 108512312 B CN108512312 B CN 108512312B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
Abstract
The invention discloses a kind of substation interval primary equipment running state analysis methods, and interval in station is analyzed according to string structure interval, general interval, bus interval, main transformer Margin Classification.According under various operating statuses, be spaced in primary equipment rational state, form a set of space state computational chart, including " space state value ", " by with number " and " with result ".For bus interval and main transformer interval, interval operating status is determined according to electrification situation；For the general interval under the modes of connection such as single female wiring, double female wiring, the first space state computational chart is substituted into, in conjunction with load power, obtains interval primary equipment operating status.For the string structure interval under 3/2 mode of connection, the second space state computational chart is substituted into, the operating status at each interval is calculated.The invention enables the operating statuses being respectively spaced in the more intuitive accurately grasp station of operations staff, ensure the normal operation of substation.
Description
Technical field
The present invention relates to a kind of substation interval primary equipment running state analysis methods, belong to Substation Automation System
Field.
Background technique
Currently, intelligent substation degree is continuously improved with the Large scale construction of intelligent substation.Substation is as electricity
The important node of net, the operational safety of substation directly influence the safe and stable operation of entire power grid.It is primary in substation
Equipment, such as transformer, breaker, bus, route, operating status are directly related to the safe and stable operation of substation, separately
Outside, the Premium Features such as substation secondary device operating status intelligent diagnostics are also required to obtain primary equipment running state information, because
This needs comprehensively and effectively to monitor primary equipment operating status in substation.
The previous real time information by manually checking primary connection figure combined data library, transports the primary equipment being spaced in station
Row state is judged, not enough intuitively, is easy error, and artificial cognition primary equipment operating status result also can not be high for other
Grade application is called, and the intuitive accurate monitoring means to interval primary equipment operating status are lacked.
Summary of the invention
Purpose: in order to overcome the deficiencies in the prior art, for advanced applications such as secondary device condition intelligent diagnosis
Support is provided, in order to which the operating status that operations staff all-sidedly and accurately grasps interior primary equipment of standing provides technical support, the present invention
A kind of substation interval primary equipment running state analysis method is provided.
Technical solution: in order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of substation interval primary equipment running state analysis method, comprises the following steps that
Step 1 traverses the transformer in substation, obtains n transformer bay every definition a=1, a represent transformer bay
Every quantity, step 2 is gone to；
Step 2, according to a-th of transformer bay every the state of interior voltage value, grounding switch obtain the transformer bay every
Operating status goes to step 3；
Step 3 traverses the winding of the transformer, obtains k winding construction, defines b=1, and b represents winding quantity, goes to
Step 4；
Step 4 obtains the associated bus structure of b-th of winding, according to bus structure electrification situation and bus knife-like
State obtains the operating status at the bus interval, goes to step 5；
Step 5, judges whether this group of bus structure is in run mode, if so, step 6 is gone to, if not then b=
B+1 goes to step 4；
Step 6 traverses the connected interval of this group of bus, obtains m interval, defines c=1, c represent bus it is connected between
Every quantity, step 7 is gone to；
Step 7 judges that c-th of interval belongs to general interval or string structure interval, if it is general interval, goes to step
Rapid eight, if it is string structure interval, go to step 9；
Step 8, by the interval grounding switch, disconnecting switch, the division combinations of states of breaker is at 8 binary systems
Number, substitute into the first space state computational chart, one by one with " by with number " carry out and calculate, if obtained result and " with result " one
The load power for causing, and being spaced is greater than threshold value, then the corresponding space state of this is that the primary equipment at the interval is run in table
Real-time database is written in space state by state；Go to step 10；
Step 9, the grounding switch that one is gone here and there in upper each interval, disconnecting switch, the division combinations of states of breaker at
20 bits, substitute into the second space state computational chart, one by one with " by with number " carry out and calculate, if obtained result and
" with result " unanimously, then in table the corresponding space state of this be each primary equipment interval on the string operating status, will
Real-time database is written in space state.Go to step 10；
Step 10, judges whether c is less than m, if so, go to step 7, if not then going to step 11；
Step 11, judges whether b is less than k, if so, go to step 4, if not then going to step 12；
Step 12, judges whether a is less than n, if so, going to step 2, calculates if not space state is then terminated.
Preferably, the step 2 specific steps include:
2.1: if transformer bay every electrification and grounding switch it is all off, which is divided into run mode；
2.2: if transformer bay every electrification and at least one grounding switch close, for overhaul state；
2.3: real-time database is written into every operating status in transformer bay.
Preferably, the step 4 specific steps include:
4.1: if bus structure charges and grounding switch is all off, being divided into run mode between the bus；
4.2: being maintenance state if bus structure electrification and at least one grounding switch are closed；
4.3: not charged if bus structure and be cold standby state if grounding switch is all off；
4.4: real-time database is written into bus structure interval operating status.
Preferably, the string structure interval refers to the equipment gone here and there between 3/2 breaker connection mode Down Highway
The interval of composition, general interval refer to certain branch interval under double female, single female modes of connection.
Preferably, the first space state computational chart in the step 8, as shown in table 1, interval state value, by
8 bits indicate that respectively represent from high to low: default bit, bus bar side grounding switch, line side grounding switch, route connect
Ground disconnecting link, main female disconnecting switch, secondary female disconnecting switch, line side disconnecting switch, breaker, equipment point is indicated with 0, shares 1 table
Show；
Table 1.
Preferably, the second space state computational chart, as shown in table 2, interval state value, by 20 two into
Number processed indicates, respectively represents from high to low: three default bits, 1 grounding switch of route, 2 grounding switch of route, side breaker 1 are female
Line side grounding switch, 1 line side grounding switch of side breaker, 1 side grounding switch of middle breaker route, middle 2 side of breaker route
Grounding switch, while 2 line side grounding switch of breaker, while breaker 2 bus bar side grounding switch, the isolation of 1 bus bar side of side breaker
Switch, while breaker 1, while breaker 1 line side disconnecting switch, 1 side disconnecting switch of middle breaker route, middle breaker, interruption
2 side disconnecting switch of road device route, while 2 line side disconnecting switch of breaker, while breaker 2,2 bus bar side of side breaker keep apart
It closes, equipment point is indicated with 0, shares 1 expression；
Table 2.
Preferably, threshold value is arranged in the step 8 are as follows: middle pressure 10MW, low pressure 2MW, high-pressure side are disconnected if 3/2
The road device mode of connection, threshold value are set as 20MW, other mode of connection high-pressure side threshold values are 10MW.
The utility model has the advantages that a kind of substation interval primary equipment running state analysis method provided by the invention, based on interval
Be connected the full spectrum informations such as bus electrification situation, load condition, grounding switch state, disconnecting link state and switch state, obtains
It is accurate and reliable to be spaced operating status result.Primary equipment combinations of states formation space state value is calculated, and is not had to one by one
Judge to nested type each equipment state, implementation method is concise, calculating is quick.Realize the automatic meter of interval primary equipment state
It calculates, real-time database is written, for funcalls such as secondary device condition diagnosings, and provides a kind of primary equipment state for operations staff
Intuitive effective monitoring means, ensure substation safety stable operation.
Detailed description of the invention
Fig. 1 is the flow diagram of the method for the present invention.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
As shown in Figure 1, a kind of substation interval primary equipment running state analysis method, comprises the following steps that
Step 1 traverses the transformer in substation, obtains n transformer bay every definition a=1, a represent transformer bay
Every quantity, step 2 is gone to；
Step 2, according to a-th of transformer bay every the state of interior voltage value, grounding switch obtain the transformer bay every
Operating status, if transformer bay every electrification and grounding switch it is all off, which is divided into run mode, if transformer bay
Every electrification and at least one grounding switch close, then be maintenance state；Real-time database is written into every operating status in transformer bay, is gone to
Step 3；
Step 3 traverses the winding of the transformer, obtains k winding construction, defines b=1, and b represents winding quantity, goes to
Step 4；
Step 4 obtains the associated bus structure of b-th of winding, according to bus structure electrification situation and bus knife-like
State obtains the operating status at the bus interval, if bus structure charges and grounding switch is all off, fortune is divided between the bus
Row state is maintenance state if bus structure electrification and at least one grounding switch are closed, if bus structure is not charged and earthing
All off lock is then cold standby state, and real-time database is written in bus structure interval operating status, goes to step 5；
Step 5, judges whether this group of bus structure is in run mode, if so, step 6 is gone to, if not then b=
B+1 goes to step 4；
Step 6 traverses the connected interval of this group of bus, obtains m interval, defines c=1, c represent bus it is connected between
Every quantity, step 7 is gone to；
Step 7 judges that c-th of interval belongs to general interval or string structure interval, and string structure interval refers to 3/2 breaker
The interval of equipment composition between mode of connection Down Highway on a string, general interval refer to certain branch under double female, single female modes of connection
Road interval goes to step 8 if it is general interval, if it is string structure interval, goes to step 9；
Step 8, by the interval grounding switch, disconnecting switch, the division combinations of states of breaker is at 8 binary systems
Number, substitute into the first space state computational chart, one by one with " by with number " carry out and calculate, if obtained result and " with result " one
The load power for causing, and being spaced is greater than threshold value, then the corresponding space state of this is the primary equipment operating status at the interval,
Real-time database is written into space state.Go to step 10；
Step 9, the grounding switch that one is gone here and there in upper each interval, disconnecting switch, the division combinations of states of breaker at
20 bits, substitute into the second space state computational chart, one by one with " by with number " carry out and calculate, if obtained result and
" with result " unanimously, can be obtained the operating status at each primary equipment interval on the string, real-time database be written in space state.Turn
To step 10；
Step 10, judges whether c is less than m, if so, go to step 7, if not then going to step 11；
Step 11, judges whether b is less than k, if so, go to step 4, if not then going to step 12；
Step 12, judges whether a is less than n, if so, going to step 2, calculates if not space state is then terminated.
First space state computational chart of the general interval, as shown in table 1, interval state value, by 8 bits
It indicates, respectively represents from high to low: default bit, bus bar side grounding switch, line side grounding switch, line-to-ground disconnecting link, main mother
Disconnecting switch, secondary female disconnecting switch, line side disconnecting switch, breaker, equipment point is indicated with 0, shares 1 expression.
Table 1
The second space state computational chart at the string structure interval, as shown in table 2, interval state value, by 20 two into
Number processed indicates, respectively represents from high to low: three default bits, 1 grounding switch of route, 2 grounding switch of route, side breaker 1 are female
Line side grounding switch, 1 line side grounding switch of side breaker, 1 side grounding switch of middle breaker route, middle 2 side of breaker route
Grounding switch, while 2 line side grounding switch of breaker, while breaker 2 bus bar side grounding switch, the isolation of 1 bus bar side of side breaker
Switch, while breaker 1, while breaker 1 line side disconnecting switch, 1 side disconnecting switch of middle breaker route, middle breaker, interruption
2 side disconnecting switch of road device route, while 2 line side disconnecting switch of breaker, while breaker 2,2 bus bar side of side breaker keep apart
It closes, equipment point is indicated with 0, shares 1 expression.
Table 2
According under various operating statuses, be spaced in primary equipment rational state, form " by with number ", " with result ".
When the operating status of analysis interval, the division state of each equipment is first read from database, is combined into 8/20 bit,
Again one by one in table " by with number " carry out and calculate, if " with result " in obtained result and table is unanimously, can determine whether this
The state at interval is consistent with this space state in table.
The interior interval in station is divided into bus interval, string structure interval and general interval according to the mode of connection, analyzes each interval one
Secondary device operating status, comprising: " run mode ", " stand-by heat ", " cold standby ", " maintenance state ".
For bus interval and main transformer interval, according to the fortune of electrification situation and the determining interval of grounding switch state in interval
Row state；
For the general interval under the modes of connection such as single female wiring, double female wiring, according to the interior grounding switch in interval, keep apart
Point (0) of the equipment such as pass, breaker close (1) combinations of states at 8 binary space state values, substitute into the first space state
Computational chart obtains interval primary equipment operating status in conjunction with load power.
For the string structure interval under 3/2 mode of connection, by middle breaker interval, side breaker interval, line segregation group
It is gone here and there at one, by the division combinations of states of the equipment such as grounding switch, disconnecting switch, breaker in string at 20 binary
Every state value, the second space state computational chart is substituted into, 2 line segregations, 2 side switch gaps, 1 middle switch room is calculated
Every operating status.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of substation interval primary equipment running state analysis method, it is characterised in that: comprise the following steps that
Step 1 traverses the transformer in substation, obtains n transformer bay every definition a=1, a represent transformer space-number
Amount, goes to step 2；
Step 2, according to a-th of transformer bay every the state of interior voltage value, grounding switch obtain the transformer bay every operation
State goes to step 3；
Step 3 traverses the winding of the transformer, obtains k winding construction, defines b=1, and b represents winding quantity, goes to step
Four；
Step 4 obtains the associated bus structure of b-th of winding, charges situation according to bus structure and bus earthing knife-switch state obtains
To the operating status at bus interval, step 5 is gone to；
Step 5, judges whether the associated bus structure of b-th of winding is in run mode, if so, step 6 is gone to, if
It is not then b=b+1, goes to step 4；
Step 6 traverses the interval being connected with bus structure described in step 5, obtains m interval, defines c=1, c represents mother
The connected interval quantity of line, goes to step 7；
Step 7 judges that c-th of interval belongs to general interval or string structure interval and go to step 8 if it is general interval,
If it is string structure interval, step 9 is gone to；
Step 8, by the interval grounding switch, disconnecting switch, the division combinations of states of breaker is at 8 bits, generation
Enter the first space state computational chart, one by one with " by with number " carry out and calculate, if obtained result and " with result " are unanimously, and
Every load power be greater than threshold value, then the corresponding space state of this is the primary of the interval in the first space state computational chart
Real-time database is written in space state by equipment running status；Go to step 10；
Step 9, the grounding switch that one is gone here and there in upper each interval, disconnecting switch, the division combinations of states of breaker are at 20
Binary number substitutes into the second space state computational chart, one by one with " by with number " carry out and calculate, if obtained result and " with knot
Unanimously, then the corresponding space state of this is each primary equipment interval on the string to fruit " in the second space state computational chart
Real-time database is written in space state by operating status；Go to step 10；
Step 10, judges whether c is less than m, if so, go to step 7, if not then going to step 11；
Step 11, judges whether b is less than k, if so, go to step 4, if not then going to step 12；
Step 12, judges whether a is less than n, if so, going to step 2, calculates if not space state is then terminated.
2. a kind of substation interval primary equipment running state analysis method according to claim 1, it is characterised in that: institute
Stating step 2 specific steps includes:
2.1: if transformer bay every electrification and grounding switch it is all off, which is divided into run mode；
2.2: if transformer bay every electrification and at least one grounding switch close, for overhaul state；
2.3: real-time database is written into every operating status in transformer bay.
3. a kind of substation interval primary equipment running state analysis method according to claim 1, it is characterised in that: institute
Stating step 4 specific steps includes:
4.1: if bus structure charges and grounding switch is all off, being divided into run mode between the bus；
4.2: being maintenance state if bus structure electrification and at least one grounding switch are closed；
4.3: not charged if bus structure and be cold standby state if grounding switch is all off；
4.4: real-time database is written into bus interval operating status.
4. a kind of substation interval primary equipment running state analysis method according to claim 1, it is characterised in that: institute
The interval that string structure interval refers to an equipment composition gone here and there between 3/2 breaker connection mode Down Highway is stated, general interval refers to double
Certain branch interval under female, single female mode of connection.
5. a kind of substation interval primary equipment running state analysis method according to claim 1, it is characterised in that: institute
The first space state computational chart in step 8 is stated, interval state value is indicated by 8 bits, respectively represented from high to low:
Default bit, bus bar side grounding switch, line side grounding switch, line-to-ground disconnecting link, main female disconnecting switch, secondary female disconnecting switch,
Line side disconnecting switch, breaker, equipment point is indicated with 0, shares 1 expression.
6. a kind of substation interval primary equipment running state analysis method according to claim 1, it is characterised in that: institute
State the second space state computational chart, interval state value is indicated by 20 bits, respectively represented from high to low: three lack
Province position, first line grounding switch, the second line-to-ground disconnecting link, first are breaking in circuit breaker bus line side grounding switch, first
Device line side grounding switch, breaker line side grounding switch in first, breaker line side grounding switch, the second side in second
Breaker line side grounding switch, second circuit breaker bus line side disconnecting switch, in circuit breaker bus line side grounding switch, first
One side breaker, the first side breaker line side disconnecting switch, breaker line side disconnecting switch, middle breaker, in first
Breaker line side disconnecting switch, second breaker, the second side breaker in breaker line side disconnecting switch, second in two
Bus bar side disconnecting switch, equipment point is indicated with 0, shares 1 expression.
7. a kind of substation interval primary equipment running state analysis method according to any one of claims 1 to 6, special
Sign is: threshold value is arranged in the step 8 are as follows: middle pressure 10MW, low pressure 2MW, high-pressure side if 3/2 breaker connection mode,
Threshold value is set as 20MW, other mode of connection high-pressure side threshold values are 10MW.
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