CN109449888A - Processing method and system after a kind of series compensation device MOV failure - Google Patents
Processing method and system after a kind of series compensation device MOV failure Download PDFInfo
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- CN109449888A CN109449888A CN201811525184.8A CN201811525184A CN109449888A CN 109449888 A CN109449888 A CN 109449888A CN 201811525184 A CN201811525184 A CN 201811525184A CN 109449888 A CN109449888 A CN 109449888A
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- 238000003672 processing method Methods 0.000 title claims abstract description 21
- 238000003860 storage Methods 0.000 claims abstract description 17
- 230000008901 benefit Effects 0.000 claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims description 54
- 238000000034 method Methods 0.000 claims description 31
- 238000012986 modification Methods 0.000 claims description 17
- 230000004048 modification Effects 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 9
- 238000012937 correction Methods 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 abstract description 6
- 238000011105 stabilization Methods 0.000 abstract description 6
- 230000002411 adverse Effects 0.000 abstract description 5
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- 208000011580 syndromic disease Diseases 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 18
- 230000006870 function Effects 0.000 description 10
- 230000006872 improvement Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000007812 deficiency Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/16—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for capacitors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/045—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/006—Calibration or setting of parameters
Abstract
The present invention provides processing method, system, computer equipment and the computer readable storage mediums after a kind of series compensation device MOV failure, are related to technical field of power systems.The system includes unbalanced value modified module, is modified for the unbalance protection definite value to series compensation device MOV；Energy low value modified module is modified for the energy low value protection definite value to MOV；String mends protection computing module, mends level of protection for calculating the string after MOV failure；Primary equipment checks module, for mending the overvoltage ability that level of protection checks series compensation device primary equipment according to the string after the MOV failure.The reliability of MOV syndrome serial benefit occurs when if the present invention is by calculating zero redundancy of MOV again, and corresponding emergency measure is proposed to ensure the reliability of string benefit, make series compensation device before replacing whole group MOV without out of service, reduction causes adverse effect to system load flow and stabilization.
Description
Technical field
The present invention is about technical field of power systems, especially with regard to the detection technique of power equipment in electric system, tool
Saying for body is processing method, system, computer equipment and computer-readable storage medium after a kind of series compensation device MOV failure
Matter.
Background technique
Metal oxide pressure-limiting device MOV is connected in parallel on the both ends of capacitor, acts first that no delay is series compensation device
Main protection, the overvoltage for limiting capacitance device group both ends.The configuration of MOV is that the level of protection mended with string has directly when system designs
Connect relationship.The series compensation device of domestic early stage much all has been running for more than ten years, in series compensation device operational process and not all
Equipment can be safe and reliable operation, unavoidably will appear the situation of device parameter exception in operational process.Operation it is super,
The problem that MOV arcing fault causes MOV redundancy deficiency once occurred for extra-high voltage series bowl spares.MOV redundancy deficiency will cause string and mend guarantor
Shield is horizontal to be improved, and be may cause the protection equipment transient overvoltage scarce capacity of series capacitor compensation group, is made to equipment safety operation
At influence.
It is determined by the device manufacturing process and characteristic of MOV when MOV redundancy deficiency, can not individually match corresponding MOV afterwards,
FCL replacement MOV is had to, causes series compensation device that can not put into operation for a long time, very big shadow is caused to system load flow and stabilization
It rings.And FCL spare unit are laid in when zero redundancy of MOV in advance and there is a problem of what long-time was left unused.
Therefore, a kind of new scheme how is provided, being able to solve above-mentioned technical problem is this field skill urgently to be resolved
Art problem.
Summary of the invention
In view of this, the embodiment of the invention provides processing method, systems, calculating after a kind of series compensation device MOV failure
Machine equipment and computer readable storage medium, if the reliable of MOV syndrome serial benefit occurs when by calculating zero redundancy of MOV again
Property, and corresponding emergency measure is proposed to ensure the reliability of string benefit, make series compensation device before replacing whole group MOV without exiting fortune
Row reduces and causes adverse effect to system load flow and stabilization.
It is an object of the invention to provide the processing methods after a kind of series compensation device MOV failure, comprising:
It modifies to the unbalance protection definite value of series compensation device MOV；
It modifies to the energy low value protection definite value of MOV；
String after calculating MOV failure mends level of protection；
The overvoltage ability that level of protection checks series compensation device primary equipment is mended according to the string after the MOV failure.
Preferably, the unbalance protection definite value to series compensation device MOV, which is modified, includes:
Obtain the missing circuitry number Q of MOV1；
Obtain MOV does not lack circuitry number Q2；
Obtain the unbalance protection definite value E for not lacking branch of MOVUB；
According to the unbalance protection fixed value modification MOV for lacking circuitry number, not lacking circuitry number and not lacking branch
Unbalance protection definite value.
Preferably, the energy low value protection definite value to MOV, which is modified, includes:
Obtain the minimum energy value protection definite value E of original MOVL；
Obtain MOV absorption maximum ENERGY Emax；
It obtains MOV and lacks the ENERGY E after E unit again without spare phase(D-E), E is the list that MOV is free of that spare phase lacks again
First number；
Calculate (D-E) column MOV energy margin E(D-E)/Emax, wherein D is the parallel units number that MOV is free of spare phase；
According to (D-E) the column MOV energy margin E(D-E)/EmaxThe energy low value for modifying MOV protects definite value.
Preferably, according to (D-E) the column MOV energy margin E(D-E)/EmaxThe energy low value for modifying MOV protects definite value packet
It includes:
Obtain preset energy margin threshold value；
Whether (D-E) column MOV energy margin described in judgement is greater than the energy margin threshold value；
When the judgment is yes, keep the energy low value protection definite value of original MOV constant；
Otherwise, the energy low value that the energy low value protection definite value for modifying original MOV is new MOV protects definite value ELnew=ED-E/(1
+ energy margin threshold value)-Emax+EL。
Preferably, the energy low value protection definite value to MOV is modified also further include:
Obtain preset multiple threshold value；
Obtain external area error maximum MOV ENERGY EOutside area；
Judge the energy low value protection definite value E of new MOVLnewWith the external area error maximum MOV ENERGY EOutside areaRatio whether
Greater than the multiple threshold value；
When the judgment is yes, the information that string correction positive motion is made when not influencing external area error is generated；
Otherwise, it obtains preset external area error string and mends bypass instruction.
Preferably, the energy low value protection definite value to MOV is modified further include:
When the external area error string mends bypass instruction instruction, and external area error string is allowed to mend bypass, gone here and there when generating external area error
Mend the information of bypass；
When the external area error string mends bypass instruction instruction, and external area error string is not allowed to mend bypass, whole phase replacement is generated
The information of MOV.
Preferably, the string benefit level of protection after the calculating MOV failure includes:
Obtain the voltage rating U of capacitor groupc, MOV maximum current ImovAnd D unit MOV entirety VA characteristic curve
fD(u,i)；
According to the D unit MOV entirety VA characteristic curve fD(u, i) calculates the whole volt after lacking E unit
Pacify characteristic curve fD-E(u, i), wherein (D-E) column overall current is (D-E)/D* (D column overall current), the whole electricity of (D-E) column
Pressure is D column global voltage；
According to MOV maximum current ImovWhole VA characteristic curve f after lacking E unitD-EIt searches and corresponds on (u, i)
MOV voltage Umov；
According to corresponding MOV voltage UmovAnd the voltage rating U of capacitor groupcString after determining MOV failure mends protection water
Flat Umov/Uc。
Preferably, level of protection is mended according to the string after the MOV failure and checks series compensation device primary equipment overvoltage ability
Include:
Obtain gap crest voltage tolerance Ugapn, by-pass switch crest voltage tolerance Ubsn, capacitor group peak value
Voltage tolerance Ucn；
String after the MOV failure mends level of protection Umov/UcGreater than gap crest voltage tolerance Ugapn/ capacitor
The voltage rating U of groupcWhen, output gap peak value is resistant to the prompt information of super name plate rating；
String after the MOV failure mends level of protection Umov/UcGreater than by-pass switch crest voltage tolerance Ubsn/ electricity
The voltage rating U of container groupcWhen, output by-pass switch peak value is resistant to the prompt information of super name plate rating；
String after the MOV failure mends level of protection Umov/UcGreater than capacitor group crest voltage tolerance Ucn/ electricity
The voltage rating U of container groupcWhen, output capacitor group peak value is resistant to the prompt information of super name plate rating.
It is an object of the invention to provide the processing systems after a kind of series compensation device MOV failure, comprising:
Unbalanced value modified module is modified for the unbalance protection definite value to series compensation device MOV；
Energy low value modified module is modified for the energy low value protection definite value to MOV；
String mends protection computing module, mends level of protection for calculating the string after MOV failure；
Primary equipment checks module, primary for mending level of protection check series compensation device according to the string after the MOV failure
The overvoltage ability of equipment.
Preferably, the unbalanced value modified module includes:
First obtains module, for obtaining the missing circuitry number Q of MOV1；
Second obtains module, does not lack circuitry number Q for obtain MOV2；
Third obtains module, for obtaining the unbalance protection definite value E for not lacking branch of MOVUB；
First modified module, for according to the injustice for lacking circuitry number, not lacking circuitry number and not lacking branch
The unbalance protection definite value of weighing apparatus protection fixed value modification MOV.
Preferably, the energy low value modified module includes:
4th obtains module, for obtaining the minimum energy value protection definite value E of former MOVL；
5th obtains module, for obtaining MOV absorption maximum ENERGY Emax；
6th obtains module, is free of ENERGY E spare phase lacks E unit again after for obtaining MOV(D-E), E be MOV not
The unit number lacked again containing spare phase；
Energy margin computing module, for calculating (D-E) column MOV energy margin E(D-E)/Emax, wherein D is MOV without standby
With the parallel units number of phase；
Second modified module is used for (D-E) column MOV energy margin E according to(D-E)/EmaxModify the energy low value of MOV
Protect definite value.
Preferably, second modified module includes:
7th obtains module, for obtaining preset energy margin threshold value；
First judgment module, for judging whether (D-E) column MOV energy margin is greater than the energy margin threshold value；
Low value keeps module, for when the first judgment module is judged as YES, keeping the energy low value protection of original MOV
Definite value is constant；
Third modified module, for when the first judgment module is judged as NO, the energy low value of modification original MOV to be protected
The energy low value that definite value is new MOV protects definite value ELnew=ED-E/ (1+ energy margin threshold value)-Emax+EL。
Preferably, the energy low value modified module further include:
8th obtains module, for obtaining preset multiple threshold value；
9th obtains module, for obtaining external area error maximum MOV ENERGY EOutside area；
Second judgment module, for judging that the energy low value of new MOV protects definite value ELnewWith the external area error maximum MOV
ENERGY EOutside areaRatio whether be greater than the multiple threshold value；
First information generation module, for when described second is judged as YES, generation not to influence string when external area error
The information that the positive motion that makes corrections is made；
Tenth obtains module, for obtaining preset external area error when second judgment module is judged as NO
String mends bypass instruction.
Preferably, the energy low value modified module is also further include:
Second information generating module allows external area error string to mend side for working as external area error string benefit bypass instruction instruction
Lu Shi, string mends the information of bypass when generating external area error；
Third information generating module does not allow external area error string to mend for mending bypass instruction instruction when the external area error string
When bypass, the information of whole phase replacement MOV is generated.
Preferably, the string benefit protection computing module includes:
11st obtains module, for obtaining the voltage rating U of capacitor groupc, MOV maximum current ImovAnd D unit
MOV entirety VA characteristic curve fD(u,i)；
Characteristic curve computing module, for according to the D unit MOV entirety VA characteristic curve fD(u, i) is calculated
Whole VA characteristic curve f after lacking E unitD-E(u, i), wherein (D-E) column overall current is that (D column is whole by (D-E)/D*
Body electric current), (D-E) column global voltage is D column global voltage；
Voltage determination module, for according to MOV maximum current ImovWhole VA characteristic curve after lacking E unit
fD-ECorresponding MOV voltage U is searched on (u, i)mov；
Level of protection determining module, for according to corresponding MOV voltage UmovAnd the voltage rating U of capacitor groupcIt determines
String after MOV failure mends level of protection Umov/Uc。
Preferably, the primary equipment check module includes:
12nd obtains module, for obtaining gap crest voltage tolerance Ugapn, by-pass switch crest voltage tolerance
Ability Ubsn, capacitor group crest voltage tolerance Ucn；
First prompt information output module mends level of protection U for the string after MOV failuremov/UcGreater than gap
Crest voltage tolerance UgapnThe voltage rating U of/capacitor groupcWhen, output gap peak value is resistant to the prompt letter of super name plate rating
Breath；
Second prompt information output module mends level of protection U for the string after MOV failuremov/UcGreater than bypass
Switching surge voltage tolerance UbsnThe voltage rating U of/capacitor groupcWhen, output by-pass switch peak value is resistant to super name plate rating
Prompt information；
Third prompt information output module mends level of protection U for the string after MOV failuremov/UcGreater than capacitor
Device group crest voltage tolerance UcnThe voltage rating U of/capacitor groupcWhen, output capacitor group peak value is resistant to super name plate rating
Prompt information.
It is an object of the invention to provide a kind of computer equipments, comprising: be adapted for carrying out each instruction processor and
Equipment is stored, the storage equipment is stored with a plurality of instruction, and described instruction is suitable for being loaded by processor and being executed a kind of string benefit dress
Processing method after setting MOV failure.
It is an object of the invention to provide a kind of computer readable storage mediums, are stored with computer program, the meter
Calculation machine program is used to execute the processing method after a kind of series compensation device MOV failure.
The beneficial effects of the present invention are processing methods, system, calculating after providing a kind of series compensation device MOV failure
Machine equipment and computer readable storage medium, if the reliable of MOV syndrome serial benefit occurs when by calculating zero redundancy of MOV again
Property, and corresponding emergency measure is proposed to ensure the reliability of string benefit, make series compensation device before replacing whole group MOV without exiting fortune
Row reduces and causes adverse effect to system load flow and stabilization.
For above and other objects, features and advantages of the invention can be clearer and more comprehensible, preferred embodiment is cited below particularly,
And cooperate institute's accompanying drawings, it is described in detail below.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the processing system after a kind of series compensation device MOV failure provided in an embodiment of the present invention；
Fig. 2 is unbalanced value modification in processing system after a kind of series compensation device MOV failure provided in an embodiment of the present invention
The structural schematic diagram of module；
Fig. 3 is energy low value modification in processing system after a kind of series compensation device MOV failure provided in an embodiment of the present invention
The structural schematic diagram of the embodiment one of module；
Fig. 4 is the second modified module in processing system after a kind of series compensation device MOV failure provided in an embodiment of the present invention
Structural schematic diagram；
Fig. 5 is energy low value modification in processing system after a kind of series compensation device MOV failure provided in an embodiment of the present invention
The structural schematic diagram of the embodiment two of module；
Fig. 6 is that string is mended protection and calculated in processing system after a kind of series compensation device MOV failure provided in an embodiment of the present invention
The structural schematic diagram of module；
Fig. 7 is that primary equipment is checked in processing system after a kind of series compensation device MOV failure provided in an embodiment of the present invention
The structural schematic diagram of module；
Fig. 8 is the flow chart of the processing method after a kind of series compensation device MOV failure provided in an embodiment of the present invention；
Fig. 9 is the specific flow chart of the step S101 in Fig. 8；
Figure 10 is the specific flow chart of the embodiment one of the step S102 in Fig. 8；
Figure 11 is the specific flow chart of the step S205 in Figure 10；
Figure 12 is the specific flow chart of the embodiment two of the step S102 in Fig. 8；
Figure 13 is the specific flow chart of the step S103 in Fig. 8；
Figure 14 is the specific flow chart of the step S104 in Fig. 8；
Figure 15 is the detailed process of the processing method in specific embodiment provided by the invention after series compensation device MOV failure
Figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Those skilled in the art will understand that embodiments of the present invention can be implemented as a kind of system, device, method or
Computer program product.Therefore, disclose can be with specific implementation is as follows by the present invention, it may be assumed that complete hardware, complete software
The form that (including firmware, resident software, microcode etc.) or hardware and software combine.
Below with reference to several representative embodiments of the invention, the principle and spirit of the present invention are explained in detail.
Fig. 1 is the structural schematic diagram of the processing system after a kind of series compensation device MOV failure provided in an embodiment of the present invention, is asked
Referring to Fig. 1, the processing system after the series compensation device MOV failure includes:
Unbalanced value modified module 100 is modified for the unbalance protection definite value to series compensation device MOV.Fig. 2 is not
The structural schematic diagram of equilibrium valve modified module 100, referring to Fig. 2, unbalanced value modified module 100 includes:
First obtains module 101, for obtaining the missing circuitry number of MOV, in one embodiment of the invention, missing
Circuitry number can use Q1It indicates；
Second obtains module 102, does not lack circuitry number for obtain MOV, in one embodiment of the invention, not
Missing circuitry number can use Q2It indicates；
Third obtains module 103, for obtaining the unbalance protection definite value for not lacking branch of MOV, of the invention one
In kind embodiment, unbalance protection definite value EUBIt indicates；
First modified module 104, for according to the missing circuitry number, do not lack circuitry number and do not lack branch not
The unbalance protection definite value of balanced protection fixed value modification MOV.
In one embodiment of the invention, the unbalance protection fixed value modification of MOV is by the first modified module 104
Q1/Q2*EUB。
Referring to Figure 1, the processing system after the series compensation device MOV failure further include:
Energy low value modified module 200 is modified for the energy low value protection definite value to MOV.Fig. 3 is energy low value
The structural schematic diagram of the embodiment one of modified module 200, refers to Fig. 3, and the energy low value modified module includes:
4th obtains module 201, for obtaining the minimum energy value protection definite value of former MOV, in a kind of implementation of the invention
The minimum energy value protection definite value E of mode Central Plains MOVLIt indicates；
5th obtains module 202, for obtaining MOV absorption maximum energy, in one embodiment of the invention, MOV
Absorption maximum energy EmaxIt indicates；
6th obtains module 203, is free of energy spare phase lacks E unit again after for obtaining MOV, E is free of for MOV
The unit number that spare phase lacks again, in one embodiment of the invention, MOV lacks E unit without spare phase again after
Energy E(D-E)It indicates；
Energy margin computing module 204, for calculating (D-E) column MOV energy margin E(D-E)/Emax, wherein D is free of for MOV
The parallel units number of spare phase, in one embodiment of the invention, (D-E) column MOV energy margin E(D-E)/EmaxIt indicates；
Second modified module 205 is used for (D-E) column MOV energy margin E according to(D-E)/EmaxThe energy for modifying MOV is low
Value protection definite value.Fig. 4 is the structural schematic diagram of the second modified module, referring to Fig. 4, the module includes:
7th obtains module 2051, for obtaining preset energy margin threshold value, in the particular embodiment, energy
Nargin threshold value all for example 30%；
First judgment module 2052, for judging whether (D-E) column MOV energy margin is greater than the energy margin threshold
Value；
Low value keeps module 2053, for keeping the energy low value of original MOV when the first judgment module is judged as YES
Protect definite value constant；
Third modified module 2054, for modifying the energy low value of original MOV when the first judgment module is judged as NO
The energy low value that definite value is new MOV is protected to protect definite value, in one embodiment of the invention, the energy low value of new MOV is protected
Protect definite value ELnewIt indicates, ELnew=ED-E/ (1+ energy margin threshold value)-Emax+EL。
Fig. 5 is energy low value modification in processing system after a kind of series compensation device MOV failure provided in an embodiment of the present invention
The structural schematic diagram of the embodiment two of module, referring to Fig. 5, in the second embodiment, the energy low value modified module is also
Include:
8th obtains module 206, for obtaining preset multiple threshold value, in one embodiment of the invention,
Multiple threshold value all for example 1.05.
9th obtains module 207, for obtaining external area error maximum MOV energy, in one embodiment of the invention,
External area error maximum MOV energy EOutside areaIt indicates；
Second judgment module 208, for judging that the energy low value of new MOV protects definite value ELnewIt is maximum with the external area error
MOV ENERGY EOutside areaRatio whether be greater than the multiple threshold value；
First information generation module 209, when not influencing external area error for generating when described second is judged as YES
The information that string correction positive motion is made, needs to carry out at this time new system-computed in time and verifies.
Tenth obtains module 210, for when second judgment module is judged as NO, obtaining event outside preset area
Barrier string mends bypass instruction.
In one embodiment of the invention, the energy low value modified module further include:
Second information generating module allows external area error string to mend side for working as external area error string benefit bypass instruction instruction
Lu Shi, string mends the information of bypass when generating external area error, executes string and mends protection computing module 300.
Third information generating module does not allow external area error string to mend for mending bypass instruction instruction when the external area error string
When bypass, the information of whole phase replacement MOV is generated.
Referring to Fig. 1, the system further include:
String mends protection computing module 300, mends level of protection for calculating the string after MOV failure.Fig. 6 is that string mends protection calculating
The structural schematic diagram of module, referring to Fig. 6, string benefit protection computing module includes:
11st obtains module 301, for obtaining voltage rating, MOV maximum current and the D unit of capacitor group
MOV entirety VA characteristic curve, in one embodiment of the invention, the voltage rating U of capacitor groupcIt indicates, MOV is most
High current ImovIt indicates, D unit MOV entirety VA characteristic curve fD(u, i) is indicated；
Characteristic curve computing module 302, for according to the D unit MOV entirety VA characteristic curve fD(u, i) is calculated
Whole VA characteristic curve after lacking E unit out, it is in one embodiment of the invention, whole after lacking E unit
Body VA characteristic curve fD-E(u, i) is indicated, wherein (D-E) column overall current is (D-E)/D* (D column overall current), (D-
E) column global voltage is D column global voltage；
Voltage determination module 303, for according to MOV maximum current ImovWhole C-V characteristic after lacking E unit is bent
Line fD-ECorresponding MOV voltage is searched on (u, i), in one embodiment of the invention, corresponding MOV voltage UmovTable
Show；
Level of protection determining module 304, for according to corresponding MOV voltage UmovAnd the voltage rating U of capacitor groupc
String after determining MOV failure mends level of protection, and in one embodiment of the invention, the string after MOV failure mends level of protection
Use Umov/UcIt indicates.
Referring to Fig. 1, the system further include:
Primary equipment checks module 400, checks series compensation device one for mending level of protection according to the string after the MOV failure
The overvoltage ability of secondary device.Fig. 7 is the structural schematic diagram that primary equipment checks module, referring to Fig. 7, the primary equipment school
Core module includes:
12nd obtains module 401, for obtaining gap crest voltage tolerance, by-pass switch crest voltage tolerance energy
Power, capacitor group crest voltage tolerance, in one embodiment of the invention, gap crest voltage tolerance are used
UgapnIt indicates, by-pass switch crest voltage tolerance UbsnIt indicates, capacitor group crest voltage tolerance UcnIt indicates；
First prompt information output module 402 mends level of protection U for the string after MOV failuremov/UcGreater than
Gap crest voltage tolerance UgapnThe voltage rating U of/capacitor groupcWhen, output gap peak value is resistant to the prompt of super name plate rating
Information need to look for producer to verify whether there is also equipment nargin.
Second prompt information output module 403 mends level of protection U for the string after MOV failuremov/UcGreater than side
Way switch crest voltage tolerance UbsnThe voltage rating U of/capacitor groupcWhen, output by-pass switch peak value is resistant to super nameplate
The prompt information of value need to look for producer to verify whether there is also equipment nargin.
Third prompt information output module 404 mends level of protection U for the string after MOV failuremov/UcGreater than electricity
Container group crest voltage tolerance UcnThe voltage rating U of/capacitor groupcWhen, output capacitor group peak value is resistant to super nameplate
The prompt information of value need to look for producer to verify whether there is also equipment nargin.
It as above is the processing system after a kind of series compensation device MOV failure provided by the invention, in conjunction with the spy of series compensation device
Point devises a kind of emergency measure, and MOV failure occurs again when if zero redundancy of MOV can be calculated simply, goes here and there the reliable of benefit
Property, and propose corresponding emergency measure, it ensures the reliability that string is mended, makes series compensation device before replacing whole group MOV without exiting fortune
Row reduces and causes adverse effect to system load flow and stabilization.
In addition, although being referred to several unit modules of system in the above detailed description, it is this to divide only simultaneously
Non-imposed.In fact, embodiment according to the present invention, the feature and function of two or more above-described units can
To embody in a unit.Equally, the feature and function of an above-described unit can also be served as reasons with further division
Multiple units embody.Terms used above " module " and " unit ", can be realize predetermined function software and/or
Hardware.Although module described in following embodiment is preferably realized with software, the group of hardware or software and hardware
The realization of conjunction is also that may and be contemplated.
After describing the processing system after the series compensation device MOV failure of exemplary embodiment of the invention, next,
It is introduced with reference to method of the attached drawing to exemplary embodiment of the invention.The implementation of this method may refer to above-mentioned whole reality
It applies, overlaps will not be repeated.
Fig. 8 is the flow chart of the processing method after a kind of series compensation device MOV failure provided in an embodiment of the present invention, is referred to
Fig. 8, which comprises
S101: it modifies to the unbalance protection definite value of series compensation device MOV.Fig. 9 is the flow diagram of the step, is asked
Refering to Fig. 9, step S101 includes:
S201: obtaining the missing circuitry number of MOV, and in one embodiment of the invention, missing circuitry number can use Q1Table
Show；
S102: obtain MOV does not lack circuitry number, in one embodiment of the invention, it is available not to lack circuitry number
Q2It indicates；
S103: the unbalance protection definite value for not lacking branch of MOV is obtained, in one embodiment of the invention, no
Balanced protection definite value EUBIt indicates；
S104: it is repaired according to the missing circuitry number, the unbalance protection definite value for not lacking circuitry number and not lacking branch
Change the unbalance protection definite value of MOV.
In one embodiment of the invention, which is Q by the unbalance protection fixed value modification of MOV1/Q2*EUB。
Refer to Fig. 8, the processing method after the series compensation device MOV failure further include:
S102: it modifies to the energy low value protection definite value of MOV.Figure 10 is that the process of the embodiment one of the step is shown
It is intended to, referring to Figure 10, step S102 includes:
S201: the minimum energy value protection definite value of original MOV is obtained, in one embodiment of the invention the energy of original MOV
Measure minimum value protection definite value ELIt indicates；
S202: obtaining MOV absorption maximum energy, and in one embodiment of the invention, MOV absorption maximum energy is used
EmaxIt indicates；
S203: MOV is obtained without spare phase and lacks the energy after E unit again, E is what MOV lacked again without spare phase
Unit number, in one embodiment of the invention, MOV lack the energy E after E unit without spare phase again(D-E)It indicates；
S204: (D-E) column MOV energy margin E is calculated(D-E)/Emax, wherein D is the parallel units number that MOV is free of spare phase,
In one embodiment of the invention, (D-E) column MOV energy margin E(D-E)/EmaxIt indicates；
S205: according to (D-E) the column MOV energy margin E(D-E)/EmaxThe energy low value for modifying MOV protects definite value.Figure 11
For the idiographic flow schematic diagram of the step, Figure 11 is please referred to, step S205 includes:
S301: obtaining preset energy margin threshold value, and in the particular embodiment, energy margin threshold value is all for example
30%；
S302: whether (D-E) column MOV energy margin described in judgement is greater than the energy margin threshold value；
S303: when step S301 is judged as YES, keep the energy low value protection definite value of original MOV constant；
S304: when step S301 is judged as NO, the energy that the energy low value protection definite value of modification original MOV is new MOV is low
Value protection definite value, in one embodiment of the invention, the energy low value of new MOV protect definite value ELnewIt indicates, ELnew=
ED-E/ (1+ energy margin threshold value)-Emax+EL。
Figure 12 is the specific flow chart of the embodiment two of step S102, please refers to Figure 12, in the second embodiment, step
S102 further include:
S306: obtaining preset multiple threshold value, and in one embodiment of the invention, multiple threshold value is all for example
1.05。
S307: external area error maximum MOV energy, in one embodiment of the invention, external area error maximum MOV are obtained
Energy EOutside areaIt indicates；
S308: judge the energy low value protection definite value E of new MOVLnewWith the external area error maximum MOV ENERGY EOutside areaRatio
Whether value is greater than the multiple threshold value；
S309: when step S308 is judged as YES, the information that string correction positive motion is made when not influencing external area error is generated, at this time
It needs to carry out new system-computed in time to verify.
S310: it when step S308 is judged as NO, obtains preset external area error string and mends bypass instruction.
In one embodiment of the invention, step S102 further include:
S311: when the external area error string, which mends bypass instruction, indicates that external area error string is allowed to mend bypass, the outer event of generation area
String mends the information of bypass when barrier.
S312: when the external area error string mends bypass instruction instruction, and external area error string is not allowed to mend bypass, whole phase is generated
Replace the information of MOV.
Referring to Fig. 8, this method further include:
S103: the string after calculating MOV failure mends level of protection.Figure 13 is the flow diagram of step S103, please refers to figure
13, which includes:
S501: voltage rating, MOV maximum current and the D unit MOV entirety C-V characteristic for obtaining capacitor group are bent
Line, in one embodiment of the invention, the voltage rating U of capacitor groupcIt indicates, MOV maximum current ImovIt indicates, D
A unit MOV entirety VA characteristic curve fD(u, i) is indicated；
S502: characteristic curve computing module 302, for according to the D unit MOV entirety VA characteristic curve fD(u,
I) the whole VA characteristic curve after lacking E unit is calculated, in one embodiment of the invention, lacks E unit
Whole VA characteristic curve f afterwardsD-E(u, i) is indicated, wherein (D-E) column overall current is (D-E)/D* (whole electricity of D column
Stream), (D-E) column global voltage is D column global voltage；
S503: according to MOV maximum current ImovWhole VA characteristic curve f after lacking E unitD-EIt is looked on (u, i)
Corresponding MOV voltage is looked for, in one embodiment of the invention, corresponding MOV voltage UmovIt indicates；
S504: according to corresponding MOV voltage UmovAnd the voltage rating U of capacitor groupcString after determining MOV failure is mended
Level of protection, in one embodiment of the invention, the string after MOV failure mend level of protection Umov/UcIt indicates.
Referring to Fig. 8, this method further include:
S104: the overvoltage ability that level of protection checks series compensation device primary equipment is mended according to the string after the MOV failure.
Figure 14 is the flow diagram of the step, please refers to Figure 14, which includes:
S601: gap crest voltage tolerance, by-pass switch crest voltage tolerance, capacitor group peak value electricity are obtained
Press tolerance, in one embodiment of the invention, gap crest voltage tolerance UgapnIt indicates, by-pass switch peak
Threshold voltage tolerance UbsnIt indicates, capacitor group crest voltage tolerance UcnIt indicates；
S602: the string after MOV failure mends level of protection Umov/UcGreater than gap crest voltage tolerance Ugapn/
The voltage rating U of capacitor groupcWhen, output gap peak value is resistant to the prompt information of super name plate rating, whether need to look for producer's verification
There is also equipment nargin.
S603: the string after MOV failure mends level of protection Umov/UcGreater than by-pass switch crest voltage tolerance
UbsnThe voltage rating U of/capacitor groupcWhen, output by-pass switch peak value is resistant to the prompt information of super name plate rating, need to look for producer
Verify whether there is also equipment nargin.
S604: the string after MOV failure mends level of protection Umov/UcGreater than capacitor group crest voltage tolerance
UcnThe voltage rating U of/capacitor groupcWhen, output capacitor group peak value is resistant to the prompt information of super name plate rating, need to look for producer's core
It is real that whether there is also equipment nargin.
It as above is the processing method after a kind of series compensation device MOV failure provided by the invention, in conjunction with the spy of series compensation device
Point devises a kind of emergency measure, and MOV failure occurs again when if zero redundancy of MOV can be calculated simply, goes here and there the reliable of benefit
Property, and propose corresponding emergency measure, it ensures the reliability that string is mended, makes series compensation device before replacing whole group MOV without exiting fortune
Row reduces and causes adverse effect to system load flow and stabilization.
The present invention also provides a kind of computer equipments, comprising: it is adapted for carrying out the processor and storage equipment of each instruction,
The storage equipment is stored with a plurality of instruction, and described instruction is suitable for being loaded by processor and executing a kind of series compensation device MOV failure
Processing method afterwards.
The present invention also provides a kind of computer readable storage mediums, are stored with computer program, the computer program
For executing the processing method after a kind of series compensation device MOV failure.
Below with reference to specific embodiment, technical solution of the present invention is discussed in detail.Figure 15 is provided by the invention specific
The specific flow chart of processing method in embodiment after series compensation device MOV failure please refers to Figure 15 it is found that the program is in the implementation
Include: in example
S1: it modifies to MOV unbalance protection definite value.If 1 unit number of MOV branch (missing unit branch) is Q1, MOV
2 unit number of branch (not lacking unit branch) is Q2, MOV unbalance protection definite value (not lacking unit branch) is EUB.It will lack
The MOV branch imbalance fixed value modification of unit is Q1/Q2*EUB。
S2: modification MOV energy low value protects definite value.
If it is E that MOV energy low value, which protects definite value,L, it is E that original system, which calculates MOV absorption maximum energy,max, outside system-computed area
Failure maximum MOV energy is EOutside area。
Calculate separately D column MOV energy margin=ED/Emax, calculate (D-E) column MOV energy margin=E(D-E)/Emax。
If (D-E) column MOV energy margin > 30%, it is not required to change protection definite value.
If (D-E) column MOV energy margin < 30%, new energy low value protection definite value, calculation method are as follows: energy are calculated
It measures low value and protects definite value ELnewIt is changed to ED-E/ (1+30%)-Emax-EL。
Wherein 30% is example value, can be actually adjusted flexibly according to system situation.
S3: external area error energy is checked, is specifically included:
If ELnew> 1.05 times of EOutside area, then string correction positive motion is made when will not influence external area error, needs to carry out in time new
System-computed is verified.Execute S6.
If ELnew< 1.05 times of EOutside area, then when external area error, S4 is executed, wherein 1.05 times are example value, it actually can basis
System situation is adjusted flexibly.
S4: it determines whether that the outer syndrome serial of some districts mends bypass, when the judgment is yes, executes step S6, otherwise execute
Step S5；
S5: whole phase MOV is needed replacing.
S6: the string after estimation MOV failure missing unit mends level of protection.
If capacitor group voltage rating is Uc, it is I that original system, which calculates MOV maximum current,mov, MOV parallel units number (is free of
Spare phase) it is D, capacity ED, energy is E MOV (being free of spare phase) lacks E unit again after(D-E)。
First according to D unit MOV entirety VA characteristic curve fD(u, i) calculating lacks the whole volt-ampere after E unit
Characteristic curve fD-E(u, i), wherein (D-E) column overall current=(D-E)/D* (D column overall current), (D-E) column global voltage=
D column global voltage.
Then according to ImovIn MOV VA characteristic curve fD-ECorresponding MOV voltage U is searched on (u, i)mov。
Finally, new level of protection=Umov/Uc。
S7: primary equipment overvoltage ability is checked.
If gap crest voltage tolerance Ugapn, by-pass switch crest voltage tolerance Ubsn, capacitor group peak value electricity
Press tolerance Ucn。
If new protection water=U in step S6mov/Uc*Uc>Ugapn, then gap peak value is resistant to super name plate rating, need to look for
Producer verifies whether there is also equipment nargin；
If new protection water=U in step S6mov/Uc*Uc>Ubsn, then by-pass switch peak value is resistant to super name plate rating,
Producer need to be looked for verify whether there is also equipment nargin；
If new protection water=U in step S6mov/Uc*Uc>Ucn, then capacitor group peak value is resistant to super name plate rating,
Producer need to be looked for verify whether there is also equipment nargin.
In conclusion the present invention provides processing method, systems, computer equipment after a kind of series compensation device MOV failure
And computer readable storage medium, it has the following beneficial effects:
1, program step is apparent, is easy to Project Realization, does not increase difficulty and cost to operation.
2, the program is in MOV redundancy deficiency, mends out of service without that will go here and there, increases availability that string is mended and reliably
Property.
3, the program without just laying in whole phase spare unit in zero redundancy of MOV in advance, the problem of will not resulting in waste of resources.
It is improvement on hardware (for example, to diode, crystal that the improvement of one technology, which can be distinguished clearly,
Pipe, switch etc. circuit structures improvement) or software on improvement (improvement for method flow).However, with technology
The improvement of development, current many method flows can be considered as directly improving for hardware circuit.Designer is almost
All corresponding hardware circuit is obtained by the way that improved method flow to be programmed into hardware circuit.Therefore, it cannot be said that one
The improvement of a method flow cannot be realized with hardware entities module.For example, programmable logic device (Programmable
Logic Device, PLD) (such as field programmable gate array (Field Programmable Gate Array, FPGA)) just
It is such a integrated circuit, logic function determines device programming by user.It is voluntarily programmed by designer Lai one
Dedicated integrated circuit is designed without asking chip maker and made to a digital display circuit " integrated " on a piece of PLD
Chip.Moreover, nowadays, substitution manually makes IC chip, and " logic compiler (logic is also used in this programming instead mostly
Compiler) " software realizes that when it writes with program development software compiler used is similar, and before compiling
Also handy specific programming language is write for source code, this is referred to as hardware description language (Hardware Description
Language, HDL), and HDL is also not only a kind of, but there are many kinds, such as ABEL (Advanced Boolean
Expression Language)、AHDL(Altera Hardware Description Language)、Confluence、
CUPL(Cornell University Programming Language)、HDCal、JHDL(Java Hardware
Description Language)、Lava、Lola、MyHDL、PALASM、RHDL(Ruby Hardware Description
Language) etc., VHDL (Very-High-Speed Integrated Circuit is most generally used at present
Hardware Description Language) and Verilog2.Those skilled in the art also will be apparent to the skilled artisan that only needs will be square
Method process slightly programming in logic and is programmed into integrated circuit with above-mentioned several hardware description languages, so that it may be readily available reality
The now hardware circuit of the logical method process.
Controller can be implemented in any suitable manner, for example, controller can take such as microprocessor or processing
The computer for the computer readable program code (such as software or firmware) that device and storage can be executed by (micro-) processor can
Read medium, logic gate, switch, specific integrated circuit (Application Specific Integrated Circuit,
ASIC), the form of programmable logic controller (PLC) and insertion microcontroller, the example of controller includes but is not limited to following microcontroller
Device: ARC625D, Atmel AT91SAM, Microchip PIC18F26K20 and Silicone Labs C8051F320 are deposited
Memory controller is also implemented as a part of the control logic of memory.
It is also known in the art that other than realizing controller in a manner of pure computer readable program code, it is complete
Entirely can by by method and step carry out programming in logic come so that controller with logic gate, switch, specific integrated circuit, programmable
Logic controller realizes identical function with the form for being embedded in microcontroller etc..Therefore this controller is considered one kind
Hardware component, and the structure that the device for realizing various functions for including in it can also be considered as in hardware component.Or
Even, can will be considered as realizing the device of various functions either the software module of implementation method can be Hardware Subdivision again
Structure in part.
System, device, module or the unit that above-described embodiment illustrates can specifically realize by computer chip or entity,
Or it is realized by the product with certain function.
For convenience of description, it is divided into various units when description apparatus above with function to describe respectively.Certainly, implementing this
The function of each unit can be realized in the same or multiple software and or hardware when application.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can
It realizes by means of software and necessary general hardware platform.Based on this understanding, the technical solution essence of the application
On in other words the part that contributes to existing technology can be embodied in the form of software products, the computer software product
It can store in storage medium, such as ROM/RAM, magnetic disk, CD, including some instructions are used so that a computer system
(can be personal computer, server or network system etc.) executes the certain of each embodiment of the application or embodiment
Method described in part.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method
Part explanation.
The application can be used in numerous general or special purpose computing system environments or configuration.Such as: personal computer, clothes
Business device computer, hand system or portable system, plate system, multicomputer system, microprocessor-based system, set
Top box, programmable consumer electronics system, network PC, minicomputer, mainframe computer including any of the above system or system
Distributed computing environment etc..
The application can describe in the general context of computer-executable instructions executed by a computer, such as program
Module.Generally, program module includes routines performing specific tasks or implementing specific abstract data types, programs, objects, group
Part, data structure etc..The application can also be practiced in a distributed computing environment, in these distributed computing environments, by
Task is executed by the connected teleprocessing system of communication network.In a distributed computing environment, program module can be with
In the local and remote computer storage media including storage system.
Although depicting the application by embodiment, it will be appreciated by the skilled addressee that the application there are many deformation and
Variation is without departing from spirit herein, it is desirable to which the attached claims include these deformations and change without departing from the application's
Spirit.
Claims (18)
1. the processing method after a kind of series compensation device MOV failure, which is characterized in that the described method includes:
It modifies to the unbalance protection definite value of series compensation device MOV；
It modifies to the energy low value protection definite value of MOV；
String after calculating MOV failure mends level of protection；
The overvoltage ability that level of protection checks series compensation device primary equipment is mended according to the string after the MOV failure.
2. the method according to claim 1, wherein the unbalance protection definite value to series compensation device MOV into
Row is modified
Obtain the missing circuitry number of MOV；
Obtain MOV does not lack circuitry number；
Obtain the unbalance protection definite value for not lacking branch of MOV；
Not according to the missing circuitry number, the unbalance protection fixed value modification MOV for not lacking circuitry number and not lacking branch
Balanced protection definite value.
3. according to the method described in claim 2, it is characterized in that, the energy low value protection definite value to MOV is modified
Include:
Obtain the minimum energy value protection definite value of original MOV；
Obtain MOV absorption maximum energy；
It obtains MOV and lacks the energy after E unit again without spare phase, E is the unit number that MOV is free of that spare phase lacks again；
(D-E) column MOV energy margin is calculated, wherein D is the parallel units number that MOV is free of spare phase；
Definite value is protected according to the energy low value that (D-E) the column MOV energy margin modifies MOV.
4. according to the method described in claim 3, it is characterized in that, modifying MOV's according to (D-E) the column MOV energy margin
Energy low value protection definite value include:
Obtain preset energy margin threshold value；
Whether (D-E) column MOV energy margin described in judgement is greater than the energy margin threshold value；
When the judgment is yes, keep the energy low value protection definite value of original MOV constant；
Otherwise, the energy low value that the energy low value protection definite value for modifying original MOV is new MOV protects definite value.
5. according to the method described in claim 4, it is characterized in that, the energy low value protection definite value to MOV is modified
Further include:
Obtain preset multiple threshold value；
Obtain external area error maximum MOV energy；
Whether the ratio of the energy low value protection definite value and the external area error maximum MOV energy that judge new MOV is greater than described times
Number threshold value；
When the judgment is yes, the information that string correction positive motion is made when not influencing external area error is generated；
Otherwise, it obtains preset external area error string and mends bypass instruction.
6. according to the method described in claim 5, it is characterized in that, the energy low value protection definite value to MOV is modified
Further include:
When the external area error string mends bypass instruction instruction, and external area error string is allowed to mend bypass, string is mended other when generating external area error
The information on road；
When the external area error string mends bypass instruction instruction, and external area error string is not allowed to mend bypass, generate whole phase replacement MOV's
Information.
7. method according to claim 5 or 6, which is characterized in that the string benefit level of protection packet calculated after MOV failure
It includes:
Obtain voltage rating, MOV maximum current and the D unit MOV entirety VA characteristic curve of capacitor group；
The whole VA characteristic curve after lacking E unit is calculated according to the D unit MOV entirety VA characteristic curve,
Wherein, (D-E) column overall current is (D-E)/D* (D column overall current), and (D-E) column global voltage is D column global voltage；
Corresponding MOV voltage is searched on lacking the whole VA characteristic curve after E unit according to MOV maximum current；
String after determining MOV failure according to the voltage rating of corresponding MOV voltage and capacitor group mends level of protection.
8. being checked the method according to the description of claim 7 is characterized in that mending level of protection according to the string after the MOV failure
Series compensation device primary equipment overvoltage ability includes:
It obtains gap crest voltage tolerance, by-pass switch crest voltage tolerance, capacitor group crest voltage and is resistant to energy
Power；
String after the MOV failure mends level of protection and is greater than gap crest voltage tolerance/capacitor group voltage rating
When, output gap peak value is resistant to the prompt information of super name plate rating；
It is specified greater than by-pass switch crest voltage tolerance/capacitor group that string after the MOV failure mends level of protection
When voltage, output by-pass switch peak value is resistant to the prompt information of super name plate rating；
It is specified greater than capacitor group crest voltage tolerance/capacitor group that string after the MOV failure mends level of protection
When voltage, output capacitor group peak value is resistant to the prompt information of super name plate rating.
9. the processing system after a kind of series compensation device MOV failure, which is characterized in that the system comprises:
Unbalanced value modified module is modified for the unbalance protection definite value to series compensation device MOV；
Energy low value modified module is modified for the energy low value protection definite value to MOV；
String mends protection computing module, mends level of protection for calculating the string after MOV failure；
Primary equipment checks module, checks series compensation device primary equipment for mending level of protection according to the string after the MOV failure
Overvoltage ability.
10. system according to claim 9, which is characterized in that the unbalanced value modified module includes:
First obtains module, for obtaining the missing circuitry number of MOV；
Second obtains module, does not lack circuitry number for obtain MOV；
Third obtains module, for obtaining the unbalance protection definite value for not lacking branch of MOV；
First modified module, for being protected according to the missing circuitry number, the imbalance for not lacking circuitry number and not lacking branch
Protect the unbalance protection definite value of fixed value modification MOV.
11. system according to claim 10, which is characterized in that the energy low value modified module includes:
4th obtains module, for obtaining the minimum energy value protection definite value of former MOV；
5th obtains module, for obtaining MOV absorption maximum energy；
6th obtains module, is free of energy spare phase lacks E unit again after for obtaining MOV, E is that MOV is free of spare phase
The unit number lacked again；
Energy margin computing module, for calculating (D-E) column MOV energy margin, wherein D be MOV without spare phase and receipts or other documents in duplicate
First number；
Second modified module, the energy low value for the modification of (D-E) column MOV energy margin according to MOV protect definite value.
12. system according to claim 11, which is characterized in that second modified module includes:
7th obtains module, for obtaining preset energy margin threshold value；
First judgment module, for judging whether (D-E) column MOV energy margin is greater than the energy margin threshold value；
Low value keeps module, for when the first judgment module is judged as YES, keeping the energy low value of original MOV to protect definite value
It is constant；
Third modified module, for when the first judgment module is judged as NO, the energy low value of modification original MOV to protect definite value
Definite value is protected for the energy low value of new MOV.
13. system according to claim 12, which is characterized in that the energy low value modified module further include:
8th obtains module, for obtaining preset multiple threshold value；
9th obtains module, for obtaining external area error maximum MOV energy；
Second judgment module, for judging that the energy low value of new MOV protects the ratio of definite value and the external area error maximum MOV energy
Whether value is greater than the multiple threshold value；
First information generation module, for when described second is judged as YES, generation not to influence string correction when external area error
The information that positive motion is made；
Tenth obtains module, mends for when second judgment module is judged as NO, obtaining preset external area error string
Bypass instruction.
14. system according to claim 13, which is characterized in that the energy low value modified module further include:
Second information generating module allows external area error string to mend bypass for mending bypass instruction instruction when the external area error string
When, string mends the information of bypass when generating external area error；
Third information generating module does not allow external area error string to mend bypass for mending bypass instruction instruction when the external area error string
When, generate the information of whole phase replacement MOV.
15. system described in 3 or 14 according to claim 1, which is characterized in that the string mends protection computing module and includes:
11st obtains module, and voltage rating, MOV maximum current and D unit MOV for obtaining capacitor group are integrally lied prostrate
Pacify characteristic curve；
Characteristic curve computing module lacks E unit for calculating according to the D unit MOV entirety VA characteristic curve
Whole VA characteristic curve afterwards, wherein (D-E) column overall current is (D-E)/D* (D column overall current), and (D-E) column is whole
Voltage is D column global voltage；
Voltage determination module, for being searched on lacking the whole VA characteristic curve after E unit according to MOV maximum current pair
The MOV voltage answered；
Level of protection determining module, after determining MOV failure according to the voltage rating of corresponding MOV voltage and capacitor group
String mend level of protection.
16. system according to claim 15, which is characterized in that the primary equipment checks module and includes:
12nd obtains module, for obtaining gap crest voltage tolerance, by-pass switch crest voltage tolerance, capacitor
Device group crest voltage tolerance；
It is resistance to greater than gap crest voltage to mend level of protection for the string after MOV failure for first prompt information output module
When by ability/capacitor group voltage rating, output gap peak value is resistant to the prompt information of super name plate rating；
Second prompt information output module mends level of protection for the string after MOV failure and is greater than by-pass switch peak value electricity
When pressing tolerance/capacitor group voltage rating, output by-pass switch peak value is resistant to the prompt information of super name plate rating；
Third prompt information output module mends level of protection for the string after MOV failure and is greater than capacitor group peak value electricity
When pressing tolerance/capacitor group voltage rating, output capacitor group peak value is resistant to the prompt information of super name plate rating.
17. a kind of computer equipment characterized by comprising it is adapted for carrying out the processor and storage equipment of each instruction, it is described
Storage equipment is stored with a plurality of instruction, and described instruction is suitable for being loaded by processor and being executed such as claim 1 to 8 any one institute
Processing method after a kind of series compensation device MOV failure stated.
18. a kind of computer readable storage medium, which is characterized in that be stored with computer program, the computer program is used for
Processing method after executing a kind of series compensation device MOV failure as described in claim 1 to 8 any one.
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| CN203607856U (en) * | 2013-12-09 | 2014-05-21 | 国家电网公司 | Submerged type series-connected capacitor compensation device |
| CN103838938A (en) * | 2014-03-27 | 2014-06-04 | 国家电网公司 | Metallic oxide voltage limiter design energy consumption estimating method and device |
| CN203745595U (en) * | 2013-12-13 | 2014-07-30 | 中国西电电气股份有限公司 | Power frequency tolerance test device for series compensated apparatus MOV |
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| CN203607856U (en) * | 2013-12-09 | 2014-05-21 | 国家电网公司 | Submerged type series-connected capacitor compensation device |
| CN203745595U (en) * | 2013-12-13 | 2014-07-30 | 中国西电电气股份有限公司 | Power frequency tolerance test device for series compensated apparatus MOV |
| CN103838938A (en) * | 2014-03-27 | 2014-06-04 | 国家电网公司 | Metallic oxide voltage limiter design energy consumption estimating method and device |
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| CN109449888B (en) | 2024-03-19 |
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