CN110133421A - Coalmine high-voltage power network quick-break definite value verified in parallel method based on First Come First Served - Google Patents
Coalmine high-voltage power network quick-break definite value verified in parallel method based on First Come First Served Download PDFInfo
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- CN110133421A CN110133421A CN201910383694.4A CN201910383694A CN110133421A CN 110133421 A CN110133421 A CN 110133421A CN 201910383694 A CN201910383694 A CN 201910383694A CN 110133421 A CN110133421 A CN 110133421A
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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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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Abstract
The invention discloses the coalmine high-voltage power network quick-break definite value verified in parallel method based on First Come First Served, include the following steps: that the power branch node that coal mine high voltage supply system is arranged, power branch node refer to the branch node directly powered by higher level's power supply department；All branch nodes to break down are added in set Set0, frist come,frist serve is based on, for the fault point each of set Set0, the branch node set for needing to trip because of the failure is obtained, executes trip operation；According to tripping as a result, realizing parallel check to quick-break definite value reasonability.Coalmine high-voltage power network quick-break definite value verified in parallel method proposed by the present invention based on First Come First Served can carry out parallel quick-break definite value inspection to relatively independent different faults point by introducing the Parallel Scheduling Algorithm of First Come First Served simultaneously, and time overhead is effectively reduced.
Description
Technical field
The invention discloses the coalmine high-voltage power network quick-break definite value verified in parallel methods based on First Come First Served, belong to coal mine
High voltage supply network fixed value calculation field.
Background technique
Mine high voltage supply system is 6kV or 10kV grade, and two power supplys should use fanout operation mode, or all the way
Using spare all the way, belong to single supply open type power grid；In coal mine high voltage supply system, when short circuit occurs simultaneously for multiple branch circuit node
When failure, the existing coalmine high-voltage power network quick-break definite value method of inspection can only in a sequential manner for each fault point one by one into
Row fixed value checking, time overhead are larger.
Coalmine high-voltage power network quick-break definite value verified in parallel method proposed by the present invention based on First Come First Served passes through introducing
The Parallel Scheduling Algorithm of First Come First Served can carry out parallel quick-break definite value to relatively independent different faults point simultaneously and examine, and have
Effect reduces time overhead.
Summary of the invention
The power branch node of coal mine high voltage supply system is set, and power branch node refers to direct by higher level's power supply department
The branch node of power supply.
The final power supply incidence matrix of branch node and branch node indicates that n is branch node quantity with G, and G is n row n
Column；In incidence matrix G, the line number of matrix is the serial number of branch node, and matrix column number is the serial number of branch node；The
The element of i row jth column is usedIt indicates；If branch node i is powered by branch node j,；If branch node i is not
It is powered by branch node j, then；As i=j,。
All branch nodes to break down are added in set Set0, frist come,frist serve are based on, for set
The fault point each of Set0 obtains the branch node set for needing to trip because of the failure, executes trip operation, specific steps
It is as follows:
Step 1): taking out a branch node from set Set0, executes step 2；
Step 2: the branch node of taking-up is expressed as, by the branch node of acquisitionData scheduling duties queue Q2 is added
In；
Step 3): if current system active line number of passes has reached the maximum ready-made setting number of system, after waiting V seconds, repetition is held
Row step 3)；Conversely, then creating a new idle thread, the branch node that will be taken out beforeIt is bundled in newly-built idle line
This thread is set busy thread by Cheng Zhong, is added in busy thread queue B2；
Step 4): if set Set0 is not empty, one branch node of taking-up from set Set0, execution step 2；If collection
Closing Set0 is sky, executes step 5)；
Step 5): from busy thread queue B2, the binding branch node is taken outBusy thread, execute the busy line
Journey, the busy thread are indicated with Threadi, according to fault branch nodeTopological relation in coal mine high voltage supply system,
Obtain the branch node set that the short trouble needs to trip；After the thread obtains the branch node set for needing to trip, to need
The branch node to be tripped executes trip operation, and discharges the busy thread automatically, completes quick-break definite value parallel check；
In step 5), according to fault branch nodeTopological relation in coal mine high voltage supply system, obtaining the failure needs
The branch node set to be tripped executes trip operation to the branch node that needs trip, the specific steps are as follows:
Step 51) assumes under initial situation that set T is sky；By branch nodeIt is added in set T, fault branch node
The failed shorted electric current that place detects is expressed as Value2, and set Set2 is set as empty；A branch node is taken out from set T,
Execute step 52)；
The serial number for the branch node that step 52) is taken out is k, and all members that numerical value is 1 are searched in the row k of incidence matrix G
The row number of element, and all obtained all row numbers of inquiring are added in set Set2, a row number is taken out from set Set2, is held
Row step 53)；
Step 53): the row number of taking-up is expressed as k1, and the quick-break definite value of branch node k1 is expressed as Value1；If, then follow the steps 54)；If, branch node k1 is added in set Set4,
Execute step 54)；
Step 54): if set Set2 is not empty, one row number of taking-up from set Set2, execution step 53)；If set
Set2 is sky, executes step 55)；
Step 55): a branch node is taken out from set Set4, the serial number of the branch node is indicated with S, matrix G's
In S column, the line number for all rows that element value is 1 is searched, and the line number inquired is added in set Set3；
Step 56): taking out an element from set Set3, executes step 57)；
Step 57): the element representation is T1, the corresponding high pressure of branch node for being T1 by serial number on high voltage supply system figure
Switch is set as separating brake；
Step 58): if set Set3 is not empty, one element of taking-up from set Set3, execution step 57)；If set
Set3 is sky, executes step 59)；
Step 59): if set Set4 is not empty, execution step 55)；If set Set4 is empty, caused by the fault point
High-voltage switch gear tripping is completed.
Detailed description of the invention
Fig. 1 is coal mine high voltage supply system figure.
Specific embodiment
It with the high-voltage switch gear on the branch node of filled black is gate-dividing state in attached drawing 1, on unfilled branch node
High-voltage switch gear be "on" position；In attached coal mine high voltage supply system figure shown in FIG. 1, branch node is (1), (2), (3)
、(4) 、(5) 、(6) 、(7) 、(8) 、(9) 、(10) 、(11) 、(12) 、(13) 、(14) 、(15) 、(16) 、(17)
(18)；Wherein, power branch node is (1) and (2).
According to attached coal mine high voltage supply system figure shown in FIG. 1, the final power supply for obtaining branch node and branch contact is closed
Join matrix G,。
All branch nodes to break down are added in set Set0, frist come,frist serve are based on, for set
The fault point each of Set0 obtains the branch node set for needing to trip because of the failure, executes trip operation；According to tripping
As a result, realizing parallel check to quick-break definite value reasonability.
Claims (2)
1. the coalmine high-voltage power network quick-break definite value verified in parallel method based on First Come First Served, which is characterized in that described coal
Mine high-voltage fence quick-break definite value verified in parallel method includes the following steps:
Step 11, the power branch node of coal mine high voltage supply system is set, and power branch node refers to by higher level's power supply department
The branch node directly powered；
Step 12, the final power supply incidence matrix of branch node and branch node is indicated with G, and n is branch node quantity, and G is n row
N column；In incidence matrix G, the line number of matrix is the serial number of branch node, and matrix column number is the serial number of branch node；
The element of i-th row jth column is usedIt indicates；If branch node i is powered by branch node j,；If branch node i
It is not powered by branch node j, then；As i=j,；
Step 13, all branch nodes to break down are added in set Set0, frist come,frist serve are based on, for collection
The fault point each of Set0 is closed, the branch node set for needing to trip because of the failure is obtained, executes trip operation.
2. the coalmine high-voltage power network quick-break definite value verified in parallel method according to claim 1 based on First Come First Served,
It is characterized in that, in step 13, is substantially carried out following steps:
Step 21 takes out a branch node from set Set0, executes step 22；
Step 22, the branch node taken out are expressed as, by the branch node of acquisitionIt is added in data scheduling duties queue Q2；
If step 23, current system active line number of passes have reached the maximum ready-made setting number of system, after waiting V seconds, repetition is held
Row step 23；Conversely, then creating a new idle thread, the branch node that will be taken out beforeIt is bundled in newly-built idle line
This thread is set busy thread by Cheng Zhong, is added in busy thread queue B2；
If step 24, set Set0 are not empty, one branch node of taking-up from set Set0, execution step 22；If collection
Closing Set0 is sky, executes step 25；
Step 25, from busy thread queue B2, take out the binding branch nodeBusy thread, execute the busy line
Journey, the busy thread are indicated with Threadi, according to fault branch nodeTopological relation in coal mine high voltage supply system,
Obtain the branch node set that the short trouble needs to trip；After the thread obtains the branch node set for needing to trip, to need
The branch node to be tripped executes trip operation, and discharges the busy thread automatically, completes quick-break definite value parallel check；
In step 25, according to fault branch nodeTopological relation in coal mine high voltage supply system, obtaining the failure needs
The branch node set to be tripped executes trip operation to the branch node that needs trip, the specific steps are as follows:
Step 251 assumes under initial situation that set T is sky；By branch nodeIt is added in set T, fault branch node
The failed shorted electric current that place detects is expressed as Value2, and set Set2 is set as empty；A branch node is taken out from set T,
Execute step 252；
Step 252, take out branch node serial number be k, in the row k of incidence matrix G search numerical value be 1 all members
The row number of element, and all obtained all row numbers of inquiring are added in set Set2, a row number is taken out from set Set2, is held
Row step 253；
Step 253, the row number taken out are expressed as k1, and the quick-break definite value of branch node k1 is expressed as Value1；If, then follow the steps 254；If, branch node k1 is added in set Set4,
Execute step 254；
If step 254, set Set2 are not empty, one row number of taking-up from set Set2, execution step 253；If set
Set2 is sky, executes step 255；
Step 255 takes out a branch node from set Set4, and the serial number of the branch node is indicated with S, matrix G's
In S column, the line number for all rows that element value is 1 is searched, and the line number inquired is added in set Set3；
Step 256 takes out an element from set Set3, executes step 257；
Step 257, the element representation are T1, the corresponding high pressure of branch node for being T1 by serial number on high voltage supply system figure
Switch is set as separating brake；
If step 258, set Set3 are not empty, one element of taking-up from set Set3, execution step 257；If set
Set3 is sky, executes step 259；
If step 259, set Set4 are not empty, execution step 255；If set Set4 is empty, caused by the fault point
High-voltage switch gear tripping is completed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111799767A (en) * | 2020-08-05 | 2020-10-20 | 国网四川省电力公司电力科学研究院 | Relay protection fixed value checking method and system for small-current grounding power distribution network |
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| CN106709134A (en) * | 2016-11-21 | 2017-05-24 | 河南理工大学 | Parallel computing method for short-circuit currents of high voltage power grids of coal mines |
| CN106816872A (en) * | 2017-03-30 | 2017-06-09 | 河南理工大学 | Coalmine high-voltage power network self-adaptive parallel short circuit calculation method based on genetic algorithm |
| CN107302208A (en) * | 2017-05-16 | 2017-10-27 | 河南理工大学 | A kind of coalmine high-voltage power network quick-break sets verified in parallel method |
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| KR101580543B1 (en) * | 2014-07-23 | 2015-12-28 | 전북대학교산학협력단 | Network system for improving upstream traffic in wind power farm |
| CN106709134A (en) * | 2016-11-21 | 2017-05-24 | 河南理工大学 | Parallel computing method for short-circuit currents of high voltage power grids of coal mines |
| CN106526427A (en) * | 2016-11-28 | 2017-03-22 | 河南理工大学 | Parallel calculation method for short-circuit current of coal mine high-voltage power grid based on load balancing |
| CN106816872A (en) * | 2017-03-30 | 2017-06-09 | 河南理工大学 | Coalmine high-voltage power network self-adaptive parallel short circuit calculation method based on genetic algorithm |
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| CN111799767A (en) * | 2020-08-05 | 2020-10-20 | 国网四川省电力公司电力科学研究院 | Relay protection fixed value checking method and system for small-current grounding power distribution network |
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Application publication date: 20190816 |