CN106485021A - Mining high-voltage electric-network automatic short-circuit computational methods based on interconnection switch topology coding - Google Patents
Mining high-voltage electric-network automatic short-circuit computational methods based on interconnection switch topology coding Download PDFInfo
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Abstract
The invention discloses the mining high-voltage electric-network automatic short-circuit computational methods based on interconnection switch topology coding, the method parameter information that various electrical equipments are comprised to mine high voltage supply system figure first is defined in detail, and carries out Initialize installation to the attribute information of the various electrical equipments of mine high voltage supply system figure；Then, network structure feature for mining high-voltage electric-network, according to the annexation between mine high voltage supply system in figure electrical equipment, topology coding is carried out for each equipment based on device type and topology discovery arithmetic, effectively realizes the topology Identification of mining high-voltage electric-network supply network；Finally, the switch set Q being obtained based on topological structure codingE, complete mining high-voltage electric-network automatic short-circuit and calculate.The method is structural strong, and analysis process is clear, and time complexity is relatively low.
Description
Technical field
The invention discloses the mining high-voltage electric-network automatic short-circuit computational methods based on interconnection switch topology coding, belong to coal
Ore deposit high voltage supply network short calculating field.
Background technology
Mine high voltage supply system is under the jurisdiction of power distribution network, is 6kV or 10kV grade.Often there is ring network in power distribution network
The network structure that network or many power supplys are powered simultaneously, and mine high voltage supply system generally uses two power supplys, and this two electricity
Source adopts fanout operation mode, or a road uses a road standby, belongs to single supply open type electrical network, is Radiation tree network
Structure.The currently existing mining high-voltage electric-network short circuit automatic short-circuit computational methods based on incidence matrix, based on incidence matrix structure
Make the Network topology model of coalmine high-voltage power network, and realize automatic short-circuit on this basis and calculate, Model suitability is strong, expansion
Malleability is good, but the mining high-voltage electric-network automatic short-circuit computational methods based on incidence matrix are with mining high-voltage electric-network number of nodes
Increase, amount of calculation is increased dramatically, and time complexity is higher.
The present invention is based on mine high voltage supply system feature, in order to reduce time complexity it is proposed that being based on contact
The mining high-voltage electric-network automatic short-circuit computational methods of switch topology coding.The method be based on high voltage supply system figure electrical equipment it
Between power supply relation complete all kinds switch, especially interconnection switch topology coding, be then based on interconnection switch topology compile
Code builds Network topology model, can still can in the case that high voltage supply system interconnection switch state changes
Enough adaptive complete mining high-voltage electric-network self adaptation short circuit calculation；The method is structural strong, and analysis process is clear, and the time is complicated
Degree is relatively low.
Content of the invention
In the high voltage supply system of colliery, the electric power-feeding structure of each electric substation can be generally divided into sectionalized single busbar connection run or
Not partition running, every section of bus has corresponding service entrance switch；If single busbar divides the electric power-feeding structure of two sections of operations, then generally
Two service entrance switch are needed to connect two sections of buses；If the electric power-feeding structure of single busbar not partition running, then typically require one
Individual service entrance switch.The parameter information that various electrical equipments are comprised to mine high voltage supply system figure is defined in detail, and right
The attribute information of the various electrical equipments of mine high voltage supply system figure carries out Initialize installation；Comprise the following steps that：
Step 1）：Each switch, every bus, as an object, all comprises some common attribute informations, and parameter is respectively：
ID（Device identification）, BoolProcessed（Whether processed）, Type（Device type）；The common genus that each object comprises
Property Meaning of Information is as follows：ID is used in the range of mining high-voltage electric-network uniquely determining an object；BoolProcessed parameter
For 0, represent that this equipment is not yet processed；BoolProcessed parameter is 1, represents that this equipment has been disposed；Device type
Field is used for distinguishing electrical equipment species, and various equipment the type field numerical value are：Electric power incoming line switchs（Type is 0）, typically enter
Wiretap（Type is 1）, outlet switch（Type is 2）, interconnection switch（Type is 3）, bus（Type is 4）；Switchgear is gathered around
There are two distinctive attribute informations, be Code respectively（Topology coding）, Status（On off state）；Attribute information implication is as follows：
Code field represents the topology coding of this equipment based on topology learning acquisition, and on off state Status value is to close a floodgate or divide
Lock；In mine high voltage supply system in figure, if switch filled black is then it represents that its on off state is separating brake；Conversely, switch
State is to close a floodgate；
Step 2）：In mine high voltage supply system in figure, setting by the high-voltage wire inlet switch that higher level's power supply department is powered is directly
Electric power incoming line switchs, and according to actual mine high voltage supply system, the device type parameter of all devices is correctly arranged；
Step 3）：According to the actual switch opening and closing state of mine high voltage supply system, to mine high voltage supply system in figure institute
The Staus parameter having switch is correctly arranged；
Step 4）：The ID parameter of all switches of mine high voltage supply system in figure is correctly arranged in advance by user；
Step 5）：The BoolProcessed parameter initialization of mine high voltage supply system in figure all devices is 0；
Step 6）：The Code parameter initialization of mine high voltage supply system in figure all devices is sky.
For mining high-voltage electric-network（Single supply open type electrical network）Network structure feature, according to mine high voltage supply system figure
Annexation between middle electrical equipment, carries out topology coding based on device type and topology discovery arithmetic for each equipment,
Propose a kind of new mining high-voltage electric-network network topology model based on interconnection switch topology coding, can effectively realize mine high
The topology Identification of voltage electric grid supply network；Comprise the following steps that：
Step 1）：Start the network topology structure to mine high voltage supply system figure using electric power incoming line switch as starting point
Practise, in all switches of electric power system figure, all electric power incoming line switch object are added to set according to electrical equipment type field
QAIn, set up a chained list PT simultaneously, chained list PT saves each electric power incoming line switch corresponding maximum operation side
System reactance under formula and the system reactance under minimum operational mode；It is assumed that i=0, character M=". "；From set QAMiddle take out one
Switch, execution step 2）；
Step 2）：The numerical value of p is set to i+1, then the numerical value of i is set to p；I is converted into character Y, detection is taken out
Switch corresponding state Status parameter, if this on off state is separating brake, execution step 3）；If this on off state is to close
Lock, then be set to Y by its topology coding Code, the switch object after coding be added to service entrance switch set QDAnd Topology Switch
Set QEIn, QEFor preserving all switch object having completed topological structure coding, execution step 3）；
Step 3）：If set QAIn also have element be not traversed, from set QAThe middle next one that takes out switchs, repeated execution of steps
2）；If set QAIn there is no element, from set QDMiddle one switch of taking-up, execution step 4）；
Step 4）：It is assumed that the service entrance switch taking out is represented with A, if the state of this service entrance switch is to close a floodgate, supply in mine high pressure
Electric system in figure searches the bus adjacent with this service entrance switch, and this bus is represented with B1, and the BoolProcessed by bus B1
Parameter is set to 1；Then look up all outlet switchs adjacent with bus B1, the topology of all outlet switchs obtaining will be searched
Encoding setting is the topology coding of switch A, and all outlet switchs obtaining are added to outlet switch set
In OutSwitchQueue；Then look up the interconnection switch adjacent with bus B1, if there is adjacent interconnection switch, this contact
Switch is represented with CONN, execution step 5）；If there is no adjacent interconnection switch, execution step 6）；
Step 5）：If the BoolProcessed parameter values of interconnection switch CONN are 0, Code field parameter is sky, then will
The Code field parameter of CONN is set to the numerical value of the Code field of A, execution step 6）；If interconnection switch CONN's
BoolProcessed parameter values are not empty for 0, Code field parameter, are represented with Temp, by Temp, " * ", the Code field of A
Three character strings are represented with TEMP1 after merging, and the Code field parameter of switch CONN are set to TEMP1, by interconnection switch
BoolProcessed parameter values are set to 1, and the interconnection switch after coding is added to switch set QEIn；
Step 6）：It is assumed that j=0, take out a switch, execution step 7 from set OutSwitchQueue）；
Step 7）：It is assumed that the outlet switch taking out is represented with B, if this outlet switch state is to close a floodgate, by the numerical value setting of q
For j+1, then the numerical value of j is set to q；J is converted into corresponding character Z1, the original topology of switch B encodes uses Y1Represent,
By Y1、M、Z1It is exactly to switch the final topology coding Code of B that three character strings merge the character string obtaining from left to right；By topology
Outlet switch after coding is added to set QBWith switch set QEIn；If still there being switch in set OutSwitchQueue
Not processed, then take out next switch, repeated execution of steps 7）；If not switching in set OutSwitchQueue needs
Process, from set QBMiddle one switch of taking-up, execution step 8）；
Step 8）：In electric power system in figure, search the service entrance switch adjacent with this outlet switch, if the topology volume of outlet switch
Code is X, and by X, M and " 1 " these three character strings merge the topology coding that the character string obtaining is exactly this service entrance switch from left to right
Code, this service entrance switch obtaining is added to set QDWith switch set QEIn；If set OBIn still have switch do not located
Reason, then take out next switch, repeated execution of steps 8）；If set OBIn do not switch need process, then execution step 9）；
Step 9）：Set QDIn if still there being switch not processed, then take out next switch, execution step 4）；If collection
Close QDIn do not switch need process, then mining high-voltage electric-network topology coding complete；Switch set QEIn all elements all complete
Topological structure coding.
The switch set Q being obtained based on topological structure codingE, realize the topology Identification of mining high-voltage electric-network supply network.
And it is directed to the routine calculation three short circuit current that certain outlet switch S controls on this basisWith line to line fault electric current.Tool
Body step is as follows：
Step 1）：In switch set QEThe middle ID parameter according to switch S can find the topology coding Code of this outlet switch, false
Its Code fixed is represented with U, set QF, set SGAnd setIt is empty under initial situation；Outlet switch S is added to set
In；
Step 2）：By switch set QEIn all switch object be added to set QFWith set SGIn；
Step 3）：After all characters after last ". " character in character string U and last ". " character are all deleted
Obtain a new character string, in set SGMiddle lookup on off state is to close a floodgate, and switch topology is encoded toService entrance switch,
If it does, this service entrance switch is usedRepresent, execution step 4）；If it does not, execution step 5）；
Step 4）：In character stringMiddle lookup ". " character, if there is no ". " character, will switchIt is added to setIn,
Execution step 7）；If there is ". " character, by character stringIn institute after last ". " character and last ". " character
Character is had to obtain a new character string after all deleting, in set SGMiddle lookup on off state is to close a floodgate, and switch topology is compiled
Code beOutlet switch, if outlet switch exist, this outlet switch is added to setIn, the value of character string U is used
Character stringReplace, execution step 3）；
Step 5）：In set SGMiddle one on off state of taking-up is the interconnection switch closing a floodgate, and its topology coding is usedRepresent,
By, " * " andThree character strings merging form；
Step 6）：If, then by character stringValue character stringReplace, execution step 4）；If, then
By character stringValue character stringReplace, in set SGMiddle lookup on off state is to close a floodgate, and switch topology is encoded to's
Service entrance switch, the service entrance switch finding is usedRepresent, execution step 4）；IfWithIt is unequal,WithAlso not phase
Deng execution step 5）；
Step 7）To gatherIn the direct control circuit of all outlet switchs resistance be all added after obtain all-in resistance；Will
SetIn the direct control circuit of all outlet switchs reactance be all added after obtain reactance；According to setMiddle preservation
Electric power incoming line switching information and chained list PT obtain maximum operational mode under system reactance and minimum operational mode under be
System reactance, then by the system reactance under maximum operational mode withIt is added the total reactance of system obtaining under maximum operational mode, by the system reactance under minimum operational mode withIt is added the total reactance of system obtaining under minimum operational mode；
Execution step 8）；
Step 8）Average voltage according to high voltage supply system short dot place circuitUnder all-in resistance, maximum operational mode
The total reactance of system calculate maximum operational mode under three short circuit current, execution step 9）；
Step 9）Average voltage according to high voltage supply system short dot place circuitUnder all-in resistance, minimum operational mode
The total reactance of system calculate minimum operational mode under line to line fault electric current.
Brief description
Fig. 1 is the colliery high voltage supply system figure before topology coding；Fig. 2 is the colliery high voltage supply system after topology coding
Figure.
Specific embodiment
The parameter information that various electrical equipments are comprised to mine high voltage supply system figure is defined in detail, and to mine
The attribute information of the various electrical equipments of high voltage supply system figure carries out Initialize installation；Comprise the following steps that：
Step 1）：In mine high voltage supply system in figure, setting by the high-voltage wire inlet switch that higher level's power supply department is powered is directly
Electric power incoming line switchs, and electric power incoming line switch, general service entrance switch, outlet switch and interconnection switch position are concrete as shown in Figure 1；
According to actual mine high voltage supply system, the device type parameter of all devices is correctly arranged；
Step 2）：According to the actual switch opening and closing state of mine high voltage supply system, to mine high voltage supply system in figure institute
The Staus parameter having switch is correctly arranged, and opening and closing state setting result is as shown in Figure 1；
Step 3）：The ID parameter of all switches of mine high voltage supply system in figure is correctly arranged in advance by user, switch
Device id is respectively（1）、（2）…、（19）, as shown in Figure 1；
Step 4）：The BoolProcessed parameter initialization of mine high voltage supply system in figure all devices is 0；
Step 5）：The Code parameter initialization of mine high voltage supply system in figure all devices is sky.
For mining high-voltage electric-network（Single supply open type electrical network）Network structure feature, according to mine high voltage supply system figure
Annexation between middle electrical equipment, carries out topology coding based on device type and topology discovery arithmetic for each equipment,
Realize the topology Identification of mining high-voltage electric-network supply network；Comprise the following steps that：
Step 1）：Start the network topology structure to mine high voltage supply system figure using electric power incoming line switch as starting point
Practise, in all switches of electric power system figure, all electric power incoming line switch object are added to set according to electrical equipment type field
QAIn, set up a chained list PT simultaneously, chained list PT saves each electric power incoming line switch corresponding maximum operation side
System reactance under formula and the system reactance under minimum operational mode；It is assumed that i=0, character M=". "；From set QAMiddle take out one
Switch, execution step 2）；
Step 2）：The numerical value of p is set to i+1, then the numerical value of i is set to p；I is converted into character Y, detection is taken out
Switch corresponding state Status parameter, if this on off state is separating brake, execution step 3）；If this on off state is to close
Lock, then be set to Y by its topology coding Code, the switch object after coding be added to service entrance switch set QDAnd Topology Switch
Set QEIn, QEFor preserving all switch object having completed topological structure coding, execution step 3）；
Step 3）：If set QAIn also have element be not traversed, from set QAThe middle next one that takes out switchs, repeated execution of steps
2）；If set QAIn there is no element, from set QDMiddle one switch of taking-up, execution step 4）；
Step 4）：It is assumed that the service entrance switch taking out is represented with A, if the state of this service entrance switch is to close a floodgate, supply in mine high pressure
Electric system in figure searches the bus adjacent with this service entrance switch, and this bus is represented with B1, and the BoolProcessed by bus B1
Parameter is set to 1；Then look up all outlet switchs adjacent with bus B1, the topology of all outlet switchs obtaining will be searched
Encoding setting is the topology coding of switch A, and all outlet switchs obtaining are added to outlet switch set
In OutSwitchQueue；Then look up the interconnection switch adjacent with bus B1, if there is adjacent interconnection switch, this contact
Switch is represented with CONN, execution step 5）；If there is no adjacent interconnection switch, execution step 6）；
Step 5）：If the BoolProcessed parameter values of interconnection switch CONN are 0, Code field parameter is sky, then will
The Code field parameter of CONN is set to the numerical value of the Code field of A, execution step 6）；If interconnection switch CONN's
BoolProcessed parameter values are not empty for 0, Code field parameter, are represented with Temp, by Temp, " * ", the Code field of A
Three character strings are represented with TEMP1 after merging, and the Code field parameter of switch CONN are set to TEMP1, by interconnection switch
BoolProcessed parameter values are set to 1, and the interconnection switch after coding is added to switch set QEIn；
Step 6）：It is assumed that j=0, take out a switch, execution step 7 from set OutSwitchQueue）；
Step 7）：It is assumed that the outlet switch taking out is represented with B, if this outlet switch state is to close a floodgate, by the numerical value setting of q
For j+1, then the numerical value of j is set to q；J is converted into corresponding character Z1, the original topology of switch B encodes uses Y1Represent,
By Y1、M、Z1It is exactly to switch the final topology coding Code of B that three character strings merge the character string obtaining from left to right；By topology
Outlet switch after coding is added to set QBWith switch set QEIn；If still there being switch in set OutSwitchQueue
Not processed, then take out next switch, repeated execution of steps 7）；If not switching in set OutSwitchQueue needs
Process, from set QBMiddle one switch of taking-up, execution step 8）；
Step 8）：In electric power system in figure, search the service entrance switch adjacent with this outlet switch, if the topology volume of outlet switch
Code is X, by X, M and " 1 " these three character strings merge from left to right obtain be exactly this service entrance switch topology coding, this is entered
Wiretap is added to set QDWith switch set QEIn；If set OBIn still have switch not processed, then take out the next one open
Close, repeated execution of steps 8）；If set OBIn do not switch need process, then execution step 9）；
Step 9）：Set QDIn if still there being switch not processed, then take out next switch, execution step 4）；If collection
Close QDIn do not switch need process, then mining high-voltage electric-network topology coding complete；Switch set QEIn all elements all complete
Topological structure coding, the colliery high voltage supply system figure after topology coding is as shown in Figure 2.
The switch set Q being obtained based on topological structure codingE, realize the topology Identification of mining high-voltage electric-network supply network.
And it is directed to the routine calculation three short circuit current that certain outlet switch S controls on this basisWith line to line fault electric current,
It is assumed that the ID parameter of S is（19）；Comprise the following steps that：
Step 1）：In switch set QEThe middle ID parameter according to switch S can find the topology coding Code of this outlet switch, false
Its Code fixed represents with U, then U is equal to " 2.1.1.1.1.1 ", set QF, set SGAnd setIt is empty under initial situation；To go out
Wiretap S is added to setIn；
Step 2）：By switch set QEIn all switch object be added to set QFWith set SGIn；
Step 3）：After all characters after last ". " character in character string U and last ". " character are all deleted
Obtain a new character string,It is equal to " 2.1.1.1.1 ", in set SGIn exist on off state be close a floodgate, switch topology
It is encoded toService entrance switch, this service entrance switch useRepresent, its ID parameter is（16）；
Step 4）：By character stringIn all characters after last ". " character and last ". " character all delete
Obtain a new character string afterwards,It is equal to " 2.1.1.1 ", in set SGIn exist on off state be close a floodgate, switch topology
It is encoded toOutlet switch, this outlet switch ID parameter is（13）, this outlet switch is added to setIn, by character
The value character string of string UReplace, U is equal to " 2.1.1.1 "；
Step 5）：After all characters after last ". " character in character string U and last ". " character are all deleted
Obtain a new character string,It is equal to " 2.1.1 ", in set SGIn do not exist on off state be close a floodgate, switch topology compile
Code beService entrance switch, execution step 6）；
Step 6）：In set SGMiddle taking-up ID parameter is（10）Interconnection switch, its topology coding useRepresent,By、
" * " andThree character strings merging form,It is equal to " 1.2.1 ",It is equal to " 2.1.1 "；
Step 7）：Cause, then by character stringValue character stringReplace, thenIt is equal to " 1.2.1 "；
Step 8）：By character stringIn all characters after last ". " character and last ". " character all delete
Obtain a new character string afterwards,It is equal to " 1.2 ", in set SGIn exist on off state be close a floodgate, switch topology encode
ForOutlet switch, this outlet switch is added to setIn, by the value character string of character string UReplace, U is equal to
“1.2”；
Step 9）：After all characters after last ". " character in character string U and last ". " character are all deleted
Obtain a new character string,It is equal to " 1 ", in set SGIn to there is on off state be to close a floodgate, switch topology is encoded to
Service entrance switch, this service entrance switch is added to setIn；
Step 10）To gatherIn the direct control circuit of all outlet switchs resistance be all added after obtain all-in resistance；Will
SetIn the direct control circuit of all outlet switchs reactance be all added after obtain reactance；According to setMiddle preservation
Electric power incoming line switch and chained list PT obtain maximum operational mode under system reactance and under minimum operational mode system electricity
Anti-, then by the system reactance under maximum operational mode withIt is added the total reactance of system obtaining under maximum operational mode
, by the system reactance under minimum operational mode withIt is added the total reactance of system obtaining under minimum operational mode；Execution
Step 11）；
Step 11）Average voltage according to high voltage supply system short dot place circuitUnder all-in resistance, maximum operational mode
The total reactance of system calculate maximum operational mode under three short circuit current, execution step 12）；
Step 12）Average voltage according to high voltage supply system short dot place circuitUnder all-in resistance, minimum operational mode
The total reactance of system calculate minimum operational mode under line to line fault electric current.
Claims (2)
1. the mining high-voltage electric-network automatic short-circuit computational methods based on interconnection switch topology coding are it is characterised in that described
Automatic short-circuit computational methods comprise the steps：
Step 11, the parameter information that various electrical equipments are comprised to mine high voltage supply system figure is defined in detail, and right
The attribute information of the various electrical equipments of mine high voltage supply system figure carries out Initialize installation；
Step 12, for the network structure feature of mining high-voltage electric-network, according to mine high voltage supply system in figure electrical equipment it
Between annexation, topology coding is carried out for each equipment based on device type and topology discovery arithmetic, effectively realizes mine
The topology Identification of high-voltage fence supply network；
Step 13, the switch set Q being obtained based on topological structure codingE, for the routine calculation three of certain outlet switch S control
Phase short circuit currentWith line to line fault electric current；
In step 13, it is substantially carried out following steps：
Step 131：In switch set QEThe middle ID parameter according to switch S can find the topology coding Code of this outlet switch, false
Its Code fixed is represented with U, set QF, set SGAnd setIt is empty under initial situation；Outlet switch S is added to set
In；
Step 132：By switch set QEIn all switch object be added to set QFWith set SGIn；
Step 133：After all characters after last ". " character in character string U and last ". " character are all deleted
Obtain a new character string, in set SGMiddle lookup on off state is to close a floodgate, and switch topology is encoded toService entrance switch,
If it does, this service entrance switch is usedRepresent, execution step 134；If it does not, execution step 135；
Step 134：In character stringMiddle lookup ". " character, if there is no ". " character, will switchIt is added to setIn,
Execution step 137；If there is ". " character, by character stringIn after last ". " character and last ". " character
All characters obtain a new character string after all deleting, in set SGMiddle lookup on off state is to close a floodgate, switch topology
It is encoded toOutlet switch, if outlet switch exist, this outlet switch is added to setIn, by the value of character string U
Use character stringReplace, execution step 133；
Step 135：In set SGMiddle one on off state of taking-up is the interconnection switch closing a floodgate, and its topology coding is usedRepresent,
By, " * " andThree character strings merging form；
Step 136：If, then by character stringValue character stringReplace, execution step 134；If,
Then by character stringValue character stringReplace, in set SGMiddle lookup on off state is to close a floodgate, and switch topology is encoded to
Service entrance switch, the service entrance switch that finds usesRepresent, execution step 134；IfWithIt is unequal,WithAlso not
Equal, execution step 135；
Step 137：To gatherIn the direct control circuit of all outlet switchs resistance be all added after obtain all-in resistance；
To gatherIn the direct control circuit of all outlet switchs reactance be all added after obtain reactance；According to setMiddle guarantor
The electric power incoming line switching information deposited and chained list PT obtain under system reactance and minimum operational mode under maximum operational mode
System reactance, then by the system reactance under maximum operational mode withIt is added the system obtaining under maximum operational mode always electric
Anti-, by the system reactance under minimum operational mode withIt is added the total reactance of system obtaining under minimum operational mode；Execution step 138；
Step 138：Average voltage according to high voltage supply system short dot place circuitUnder all-in resistance, maximum operational mode
The total reactance of system calculate maximum operational mode under three short circuit current, execution step 139；
Step 139：Average voltage according to high voltage supply system short dot place circuitUnder all-in resistance, minimum operational mode
The total reactance of system calculate minimum operational mode under line to line fault electric current.
2. the mining high-voltage electric-network automatic short-circuit computational methods based on interconnection switch topology coding according to claim 1,
It is characterized in that, in step 12, it is substantially carried out following steps：
Step 21：Start the network topology structure to mine high voltage supply system figure using electric power incoming line switch as starting point
Practise, in all switches of electric power system figure, all electric power incoming line switch object are added to set according to electrical equipment type field
QAIn, set up a chained list PT simultaneously, chained list PT saves each electric power incoming line switch corresponding maximum operation side
System reactance under formula and the system reactance under minimum operational mode；It is assumed that i=0, character M=". "；From set QAMiddle take out one
Switch, execution step 22；
Step 22：The numerical value of p is set to i+1, then the numerical value of i is set to p；I is converted into character Y, detection is taken out
Switch corresponding state Status parameter, if this on off state is separating brake, execution step 23；If this on off state is to close
Lock, then be set to Y by its topology coding Code, the switch object after coding be added to service entrance switch set QDAnd Topology Switch
Set QEIn, QEFor preserving all switch object having completed topological structure coding, execution step 23；
Step 23：If set QAIn also have element be not traversed, from set QAThe middle next one that takes out switchs, repeated execution of steps
22；If set QAIn there is no element, from set QDMiddle one switch of taking-up, execution step 24；
Step 24：It is assumed that the service entrance switch taking out is represented with A, if the state of this service entrance switch is to close a floodgate, supply in mine high pressure
Electric system in figure searches the bus adjacent with this service entrance switch, and this bus is represented with B1, and the BoolProcessed by bus B1
Parameter is set to 1；Then look up all outlet switchs adjacent with bus B1, the topology of all outlet switchs obtaining will be searched
Encoding setting is the topology coding of switch A, and all outlet switchs obtaining are added to outlet switch set
In OutSwitchQueue；Then look up the interconnection switch adjacent with bus B1, if there is adjacent interconnection switch, this contact
Switch is represented with CONN, execution step 25；If there is no adjacent interconnection switch, execution step 26；
Step 25：If the BoolProcessed parameter values of interconnection switch CONN are 0, Code field parameter is sky, then will
The Code field parameter of CONN is set to the numerical value of the Code field of A, execution step 26；If interconnection switch CONN's
BoolProcessed parameter values are not empty for 0, Code field parameter, are represented with Temp, by Temp, " * ", the Code field of A
Three character strings are represented with TEMP1 after merging, and the Code field parameter of switch CONN are set to TEMP1, by interconnection switch
BoolProcessed parameter values are set to 1, and the interconnection switch after coding is added to switch set QEIn；
Step 26：It is assumed that j=0, take out a switch, execution step 27 from set OutSwitchQueue；
Step 27：It is assumed that the outlet switch taking out is represented with B, if this outlet switch state is to close a floodgate, by the numerical value setting of q
For j+1, then the numerical value of j is set to q；J is converted into corresponding character Z1, the original topology of switch B encodes uses Y1Represent,
By Y1、M、Z1It is exactly to switch the final topology coding Code of B that three character strings merge the character string obtaining from left to right；By topology
Outlet switch after coding is added to set QBWith switch set QEIn；If still there being switch in set OutSwitchQueue
Not processed, then take out next switch, repeated execution of steps 27；If not switching in set OutSwitchQueue needs
Process, from set QBMiddle one switch of taking-up, execution step 28；
Step 28：In electric power system in figure, search the service entrance switch adjacent with this outlet switch, if the topology volume of outlet switch
Code is X, and by X, M and " 1 " these three character strings merge the topology coding that the character string obtaining is exactly this service entrance switch from left to right
Code, this service entrance switch obtaining is added to set QDWith switch set QEIn；If set OBIn still have switch do not located
Reason, then take out next switch, repeated execution of steps 28；If set OBIn do not switch need process, then execution step 29；
Step 29：Set QDIn if still there being switch not processed, then take out next switch, execution step 24；If set
QDIn do not switch need process, then mining high-voltage electric-network topology coding complete；Switch set QEIn all elements all complete
Topological structure encodes.
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| CN106960094A (en) * | 2017-03-23 | 2017-07-18 | 河南理工大学 | Short circuit current flow automatic calculating method based on topology coding after changes of operating modes |
| CN108448578A (en) * | 2018-04-13 | 2018-08-24 | 河南理工大学 | T-type mining high-voltage electric-network automatic short-circuit computational methods based on topology coding |
| CN112328840A (en) * | 2020-11-09 | 2021-02-05 | 鹤壁煤业（集团）有限责任公司 | Mining area high-voltage power grid self-adaptive short circuit calculation method based on topology search |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106960094A (en) * | 2017-03-23 | 2017-07-18 | 河南理工大学 | Short circuit current flow automatic calculating method based on topology coding after changes of operating modes |
| CN106960094B (en) * | 2017-03-23 | 2020-05-05 | 河南理工大学 | Topological coding-based short circuit current automatic calculation method after operation mode change |
| CN108448578A (en) * | 2018-04-13 | 2018-08-24 | 河南理工大学 | T-type mining high-voltage electric-network automatic short-circuit computational methods based on topology coding |
| CN108448578B (en) * | 2018-04-13 | 2021-03-16 | 河南理工大学 | Automatic short-circuit calculation method for T-shaped mine high-voltage power grid based on topological coding |
| CN112328840A (en) * | 2020-11-09 | 2021-02-05 | 鹤壁煤业（集团）有限责任公司 | Mining area high-voltage power grid self-adaptive short circuit calculation method based on topology search |
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