CN105515166B - 110 kilovolts of system busbar combining units of intelligent substation double bus scheme mode can back brake maintenance voltage allocation plan - Google Patents
110 kilovolts of system busbar combining units of intelligent substation double bus scheme mode can back brake maintenance voltage allocation plan Download PDFInfo
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- CN105515166B CN105515166B CN201610032836.9A CN201610032836A CN105515166B CN 105515166 B CN105515166 B CN 105515166B CN 201610032836 A CN201610032836 A CN 201610032836A CN 105515166 B CN105515166 B CN 105515166B
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- 238000012423 maintenance Methods 0.000 title claims abstract description 19
- 230000003287 optical effect Effects 0.000 claims abstract description 21
- 238000012545 processing Methods 0.000 claims abstract description 9
- 230000008439 repair process Effects 0.000 claims abstract description 5
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 230000004224 protection Effects 0.000 claims description 21
- 238000005204 segregation Methods 0.000 claims description 12
- 238000012986 modification Methods 0.000 claims description 9
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- 230000005540 biological transmission Effects 0.000 claims description 6
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/02—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention disclose a kind of 110 kilovolts of system busbar combining units of intelligent substation double bus scheme mode can back brake maintenance voltage allocation plan, by increasing all intervals 110kV combining unit and wall secondary device to the optical cable circuit of 110kVII sections of busbar combining units, and all intervals 110kV combining unit and wall secondary device are accessed into II sections of busbar combining units of 110kV by newly-increased optical cable circuit and export optical port, when under any busbar PT combining unit fault conditions, all intervals are poured into another section of bus run by substation's operation maintenance personnel by busbar grid switching operation, ensure all intervals still normal operation, reinform repair and maintenance personnel on site's inspection processing.Any busbar PT combining units maintenance again may be by the formula of falling maternal arrangement, avoid that accompanying for running equipment is caused to stop.
Description
Technical field
The present invention relates to a kind of 110 kilovolts of system voltage allocation plans, especially a kind of intelligent substation double bus schemes
110 kilovolts of system busbar combining units of mode can back brake maintenance voltage allocation plan.
Background technology
It is well known that double bus scheme mode busbar PT powers to multiple interval multiple equipments simultaneously, once it breaks down
Influence face is very big, deteriorated area protection seting cooperation, in some instances it may even be possible to cause power grid large number of equipment refused action or tripping of bypassing the immediate leadership.It is close several
Year, it puts into operation with intelligent substation Accelerating The Construction and constantly, combining unit and intelligent terminal are extensively using changing tradition change
Power station output, way of output research and development and design concept, and for 110 kilovolts of system lists of Intelligent transformer station double bus scheme mode
Equipment is configured, the mono- protections configured of all 110kV of 220kV intelligent stations at present and automatic safety device are by I sections of busbares of 110kV
Combining unit cascade, which is drawn, takes busbar voltage, such as Fig. 1, shown in 2.DC power supply designs：110kV I, II sections of busbar combining units are straight
Galvanic electricity source is drawn respectively takes I, II sections of power supplys of DC power system, the protection of 110kV line segregations, observing and controlling, control and intelligent assembly electricity
Source carries out power distribution according to odd even interval numbers.General odd-numbered interval takes I sections of DC power supply, and even-numbered interval takes II
Section power supply.As shown in Figure 3.The bus bar configuration scheme of the prior art has main having：1）110kVI sections of busbares merge single
Element device failure causes all 110kV line segregations voltages for cascading its busbar voltage to lose, distance protection and with directional element
Quick fraction zero-sequenceprotection be blocked, only retain long delay PT broken string overcurrent protection and zero-sequenceprotection（When generally adjusting action
Between be 3 ~ 4 seconds）, any circuit or element fault under this power system operating mode certainly will be got over caused by protection seting coordinates difficulty
Grade action, expands fault coverage, in some instances it may even be possible to cause a plurality of circuit while trip.2）Protection, the control at even-numbered interval
System and intelligent assembly are mounted with cascade busbar combining unit not on same section DC power supply, and DC power supply I segment faults lose feelings
Under condition, all 110kV route protections voltages lose, and the influence of generation is the same as 1）Analysis.
Invention content
It is an object of the invention to overcome the deficiencies in the prior art places, and provide one kind in any busbar PT combining units
Under fault condition, all intervals are poured into another section of bus run by substation's operation maintenance personnel by busbar grid switching operation, ensure institute
There is interval still normal operation, then the 110 kilovolts of system voltage arrangements of intelligent substation double bus scheme mode processed.
A kind of 110 kilovolts of system busbar combining units of intelligent substation double bus scheme mode can the voltage of back brake maintenance match
Scheme is set, all intervals 110kV combining unit and wall secondary device are cascaded or are directly connected to by optical cable circuit
To 110kVI sections of busbar combining units, it is characterised in that：Further include that increase all intervals 110kV combining unit and wall are secondary
Equipment is set to the optical cable circuit of 110kVII sections of busbar combining units, and by all intervals 110kV combining unit and wall are secondary
It is standby that II sections of busbar combining units output optical ports of 110kV, I sections of busbar combining units of 110kV are accessed by newly-increased optical cable circuit
And protection, observing and controlling, control and the intelligent assembly of odd-numbered line segregation are articulated in I sections of DC power supplies, II sections of 110kV
Protection, observing and controlling, control and the intelligent assembly of busbar combining unit and even-numbered line segregation are articulated in II sections of direct currents
Source；The voltage of all intervals 110kV combining unit and wall secondary device cascades or the configuration of the virtual terminator of directly-attached loop
I sections of busbar combining units, II are taken to input cascade or drawing all intervals 110kV combining unit and wall secondary device mother I
Mother's input, which cascades or draws, takes II sections of busbar combining units.Each interval combining unit is received and cascades different combining unit information progress
Software differentiates upgrading processing, and mounting busbar is distinguished by being spaced the judgement of disconnecting link location status information, is cascaded when for mounting busbar
When the chain rupture of SV links, error code, these exceptions of invalid bit occurs in circuit, protects the equipment such as observing and controlling to receive combining unit at this time and send
It is judged as that PT breaks after stating information, breaks according to PT and carry out logic discrimination and processing, goes out if the cascaded loop of non-mounting busbar
When existing aforementioned exception information, protect at this time at equal intervals layer equipment the information is not handled, pass through and be spaced layer combining unit hair
Non- mounting busbar cascades SV exception information alarm prompts, after regulation and control O＆M operator on duty obtains the information by monitoring system
Notice repair and maintenance personnel are handled to site inspection in time；Take the wall of voltage secondary for directly drawing from busbar combining unit
Equipment also requires that and carries out software upgrading to control source testing mechanism, the input of two sections of busbar voltages is detected respectively and
Judge, including SV links, error code and invalid bit these exception informations, then secondary device occurs after above-mentioned exception in certain section of busbar voltage
Logic discrimination and processing, concurrent correspondent section busbar voltage SV alarm signals are carried out according to this section of busbar PT broken string.
The wall secondary device refers to such as bus protection, public observing and controlling, fault oscillograph equipment.
The present invention mounts direct current to busbar combining unit and each interval protection observing and controlling, control and intelligent assembly DC power supply
Source paragraph is strictly configured, i.e. protection, observing and controlling, the control of 110kV I sections of busbar combining units and odd-numbered line segregation
System and intelligent assembly are articulated in I sections of DC power supplies, II sections of busbar combining units of 110kV and even-numbered line segregation
Protection, observing and controlling, control and intelligent assembly are articulated in II sections of DC power supplies.Double loop line segregation is articulated in I, II sections respectively
DC power supply.It can ensure under normal operating mode in this way, the voltage at odd-numbered interval merges list from I sections of busbares of 110kV
Member obtains mother's I voltage, and the voltage at even intervals number interval obtains mother's II voltage from II sections of busbar combining units of 110kV, no
Understand and lost in either segment DC power supply because of power supply cross-over configuration, the spaced protection control function of institute is caused to lose.
The virtual terminator concrete configuration is：System integrator designs according to the modification virtual terminator that designing unit provides first
Table utilizes SCD（Whole station system configuration file Substation Configuration Description）Configuration file is to institute
There is the configuration of the intervals 110kV combining unit and secondary device to modify, deletes all intervals 110kV combining unit and wall
Secondary device links all intervals 110kV and merges list to the II section busbar voltage SMV lines of I sections of busbar combining units of 110kV
Member and wall secondary device configure SMV lines to the II section busbar voltage SMV lines of II sections of busbar combining units of 110kV
When, for recipient, it is necessary to first add external signal, then add internal signal.It is as follows to add external signal configuration sequence：1）
Select the physical address of SMV recipient；2）Selection SMV recipient corresponds to LD（SVLD）；3）The LN where SMV lines is selected,（One
As be fixed in LLNO）；4）Select Inputs options（Virtual terminator line）；5）Select external signal；6）By the SMV of sending device
The FCDA that transmission data under accessing points is concentrated is dragged to middle window, and discharges in order.Select internal signal configuration sequence：
In reception device, the LD-- under SMV accessing points》LN--》FC--》Under DO, corresponding DA is selected, is dragged in middle window
Row where corresponding external signal completes the connection of external signal and internal signal, namely completes a SMV line, i.e.,
The modification for completing SCD file configuration generates.
After modification generates above-mentioned SCD file, then all intervals 110kV combining unit and wall secondary device producer
CID files are generated after being extracted with this IED relevant informations in SCD file with the configuration tool of IED devices, and work is configured by device
It is attached to specific IED equipment under tool, that is, completes virtual terminator configuration.
It completes after being filled under above-mentioned configuration virtual terminator configuration and CID files, finally by II sections of busbar combining unit grades of 110kV
The spare optical port for joining or being connected to all intervals 110kV combining unit and wall secondary device opens, that is, completes all empty ends
Son configuration and optical port configuration output.The intervals 110kV combining unit cascade voltage and directly drawing for wall secondary device take voltage
Configuration differs only in the difference of voltage transport protocol, and the agreement of cascade voltage transmission is IEC60044-8, directly draws the electricity taken
Pressure transport protocol is IEC61850-9-2, and classification configurations are needed in configuration process.
Virtual terminator describes IED（Intelligent electronic device Intelligent Electronic Device）GOOSE（Face
To the transformer substation case Generic object oriented substation events of general object）、 SV （Sampled value
Sampled value）Input, output signal tie point general name, to identification procedure layer, wall and its between contact two
Minor loop signal is equal to the screen terminal of traditional substation.
In summary, the present invention following advantage compared with prior art：
The present invention 110 kilovolts of system busbar combining units of intelligent substation double bus scheme mode can back brake maintenance electricity
Allocation plan is pressed, under any busbar PT combining unit fault conditions, substation's operation maintenance personnel is by busbar grid switching operation by institute
There is interval to pour into another section of bus run, ensures all intervals still normal operation, reinform repair and maintenance personnel on site inspection department
Reason.Any busbar PT combining units maintenance again may be by the formula of falling maternal arrangement, avoid that accompanying for running equipment is caused to stop.
Description of the drawings
Fig. 1 is I sections of busbar combining unit wiring schematic diagrams of 110kV of the prior art.
Fig. 2 is II sections of busbar combining unit wiring schematic diagrams of 110kV of the prior art.
Fig. 3 is 110kV system interval DC power supply wiring schematic diagrams.
Fig. 4 is I sections of busbar combining unit wiring schematic diagrams of 110kV of the present invention.
Fig. 5 is II sections of busbar combining unit wiring schematic diagrams of 110kV of the present invention.
Specific implementation mode
The present invention is described in more detail with reference to embodiment.
Embodiment 1
A kind of 110 kilovolts of system busbar combining units of intelligent substation double bus scheme mode can the voltage of back brake maintenance match
Scheme is set, all intervals 110kV combining unit and wall secondary device are cascaded or are directly connected to by optical cable circuit
To 110kVI sections of busbar combining units, it is characterised in that：Further include that increase all intervals 110kV combining unit and wall are secondary
Equipment is set to the optical cable circuit of 110kVII sections of busbar combining units, and by all intervals 110kV combining unit and wall are secondary
It is standby that II sections of busbar combining units output optical ports of 110kV, wiring such as Fig. 4,5 are accessed by newly-increased optical cable circuit；；I sections of 110kV
Protection, observing and controlling, control and the intelligent assembly of busbar combining unit and odd-numbered line segregation are articulated in I sections of direct currents
Source, protection, observing and controlling, control and the intelligent assembly mounting of II sections of busbar combining units of 110kV and even-numbered line segregation
In II sections of DC power supplies, double loop line segregation is articulated in I, II sections of DC power supplies respectively；All intervals 110kV combining unit and
The voltage of wall secondary device cascades or the virtual terminator of directly-attached loop is configured to all intervals 110kV combining unit and
Wall secondary device mother I, which inputs cascade or draws, takes I sections of busbar combining units, and mother II, which inputs cascade or draws, takes II sections of busbares to merge
Unit.Each interval combining unit is received and cascades different combining unit information progress softwares differentiation upgrading processings, passes through and is spaced knife
Gate position status information judges to distinguish mounting busbar, when there is SV links chain rupture, error code, invalid for mounting busbar cascaded loop
When these exceptions of position, protects the equipment such as observing and controlling to receive after combining unit sends above- mentioned information at this time and is judged as that PT breaks, according to PT
Broken string carries out logic discrimination and processing, when there is aforementioned exception information if the cascaded loop of non-mounting busbar, protection etc. at this time
Bay device is not handled the information, is sent out non-and mount busbar is cascaded the alarm of SV exception informations by being spaced layer combining unit
Prompt message, regulation and control O＆M operator on duty notify repair and maintenance personnel to be examined to scene in time after obtaining the information by monitoring system
Investigate and prosecute reason；The wall secondary device that voltage is taken for directly drawing from busbar combining unit is also required that and is detected to control source
Mechanism carries out software upgrading, and two sections of busbar voltage inputs are detected and are judged respectively, including SV links, error code and invalid bit
There is after above-mentioned exception then secondary device and carry out logic according to this section of busbar PT broken string sentencing in these exception informations, certain section of busbar voltage
Not and handle, concurrent correspondent section busbar voltage SV alarm signals.
The virtual terminator concrete configuration is：System integrator designs according to the modification virtual terminator that designing unit provides first
Table utilizes SCD（Whole station system configuration file Substation Configuration Description）Configuration file is to institute
There is the configuration of the intervals 110kV combining unit and secondary device to modify, deletes all intervals 110kV combining unit and wall
Secondary device links all intervals 110kV and merges list to the II section busbar voltage SMV lines of I sections of busbar combining units of 110kV
Member and wall secondary device configure SMV lines to the II section busbar voltage SMV lines of II sections of busbar combining units of 110kV
When, for recipient, it is necessary to first add external signal, then add internal signal.It is as follows to add external signal configuration sequence：1）
Select the physical address of SMV recipient；2）Selection SMV recipient corresponds to LD（SVLD）；3）The LN where SMV lines is selected,（One
As be fixed in LLNO）；4）Select Inputs options（Virtual terminator line）；5）Select external signal；6）By the SMV of sending device
The FCDA that transmission data under accessing points is concentrated is dragged to middle window, and discharges in order.Select internal signal configuration sequence：
In reception device, the LD-- under SMV accessing points》LN--》FC--》Under DO, corresponding DA is selected, is dragged in middle window
Row where corresponding external signal completes the connection of external signal and internal signal, namely completes a SMV line, i.e.,
The modification for completing SCD file configuration generates.
After modification generates above-mentioned SCD file, then all intervals 110kV combining unit and wall secondary device producer
CID files are generated after being extracted with this IED relevant informations in SCD file with the configuration tool of IED devices, and work is configured by device
It is attached to specific IED equipment under tool, that is, completes virtual terminator configuration.
It completes after being filled under above-mentioned configuration virtual terminator configuration and CID files, finally by II sections of busbar combining unit grades of 110kV
The spare optical port for joining or being connected to all intervals 110kV combining unit and wall secondary device opens, that is, completes all empty ends
Son configuration and optical port configuration output.The intervals 110kV combining unit cascade voltage and directly drawing for wall secondary device take voltage
Configuration differs only in the difference of voltage transport protocol, and the agreement of cascade voltage transmission is IEC60044-8, directly draws the electricity taken
Pressure transport protocol is IEC61850-9-2, and classification configurations are needed in configuration process.
The not described part of the present embodiment is same as the prior art.
Claims (2)
1. a kind of 110 kilovolts of system busbar combining units of intelligent substation double bus scheme mode can back brake maintenance voltage configuration
Scheme, all intervals 110kV combining unit and wall secondary device are cascaded or are connected directly to 110kVI by optical cable circuit
Section busbar combining unit, it is characterised in that：Further include increasing all intervals 110kV combining unit and wall secondary device extremely
The optical cable circuit of 110kVII sections of busbar combining units, and all intervals 110kV combining unit and wall secondary device are passed through
Newly-increased optical cable circuit access II sections of busbar combining units of 110kV export optical port；I sections of busbar combining units of 110kV and strange
Protection, observing and controlling, control and the intelligent assembly of number number line segregation are articulated in I sections of DC power supplies, and II sections of busbares of 110kV close
And protection, observing and controlling, control and the intelligent assembly of unit and even-numbered line segregation are articulated in II sections of DC power supplies, own
The voltage of the intervals 110kV combining unit and wall secondary device cascades or the virtual terminator of directly-attached loop is configured to own
The intervals 110kV combining unit and wall secondary device mother I, which input cascade or draw, takes I sections of busbar combining units, mother's II input stage
Join or draw and take II sections of busbar combining units, each interval combining unit is received and cascades different I sections of busbares or II sections of busbares merging lists
Metamessage carries out software and differentiates upgrading processing, judges to distinguish mounting busbar by being spaced disconnecting link location status information, when to hang
Connect busbar cascaded loop occur the chain rupture of SV links, error code, invalid bit these it is abnormal when, protect measuring and controlling equipment to receive merging at this time single
Member is judged as that PT breaks after sending interval disconnecting link location status information, breaks according to PT and carries out logic discrimination and processing, if non-
When exception information occurs in the cascaded loop of mounting busbar, protection interval layer equipment is not handled exception information at this time, is passed through
The intervals 110kV combining unit is sent out non-and mounts busbar cascade SV exception information alarm prompts, and regulation and control O＆M operator on duty passes through
Monitoring system notifies repair and maintenance personnel to be handled to site inspection in time after obtaining alarm prompt；For directly being closed from busbar
And unit draws the wall secondary device for taking voltage, also requires that and carries out software upgrading to control source testing mechanism, to two sections
Busbar voltage input is detected and judges respectively, including SV links, error code and invalid bit these exception informations, certain section of busbar electricity
Then secondary device carries out logic discrimination and processing, concurrent correspondent section busbar according to this section of busbar PT broken string after the existing above-mentioned exception of extrusion
Voltage SV alarm signals.
2. 110 kilovolts of system busbar combining units of intelligent substation double bus scheme mode according to claim 1 can fall
The voltage allocation plan of lock maintenance, it is characterised in that：The virtual terminator concrete configuration is that system integrator is according to design first
The modification virtual terminator that unit provides designs table, using SCD configuration files to all intervals 110kV combining unit and secondary device
Configuration is modified, and deletes all intervals 110kV combining unit and wall secondary device to I sections of busbar combining units of 110kV
II section busbar voltage SMV lines, it is female to II sections of 110kV to link all intervals 110kV combining unit and wall secondary device
The II section busbar voltage SMV lines of line combining unit, when configuring SMV lines, for recipient, it is necessary to external signal is first added,
Then internal signal is added, addition external signal configuration sequence is as follows：1）Select the physical address of SMV recipient；2）Select SMV
Recipient corresponds to LD；3）Select the LN where SMV lines；4）Select virtual terminator line Inputs options；5）Select external signal；
6）The FCDA that transmission data under the SMV accessing points of sending device is concentrated is dragged to middle window, and is discharged in order；In selection
Portion's signal configuration sequence：In reception device, the LD-- under SMV accessing points》LN--》FC--》Under DO, corresponding DA is selected,
It is dragged to the row where corresponding external signal in middle window, that is, completes the connection of external signal and internal signal, namely
A SMV line is completed, that is, the modification for completing SCD file configuration generates；
After modification generates above-mentioned SCD file, then all intervals 110kV combining unit and wall secondary device producer use
The configuration tool of IED devices generates CID files after being extracted with this IED relevant informations in SCD file, and passes through device configuration tool
Under be attached to specific IED equipment, that is, complete virtual terminator configuration；
It completes after being filled under above-mentioned virtual terminator configuration and CID files, finally by II sections of busbar combining unit cascades of 110kV or connection
To the spare optical port of all intervals 110kV combining unit and wall secondary device, that is, complete all virtual terminator configurations and optical port
Directly drawing for configuration output, the intervals 110kV combining unit cascade voltage and wall secondary device takes voltage configuration difference only to exist
It is IEC60044-8 in the agreement of the difference of voltage transport protocol, cascade voltage transmission, directly drawing the voltage transport protocol taken is
IEC61850-9-2 needs classification configurations in configuration process.
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| CN107015332B (en) * | 2017-05-26 | 2023-09-15 | 国家电网有限公司 | Optical cable connecting device between high-voltage side process layer and spacer layer of intelligent substation |
| CN110736609B (en) * | 2019-10-24 | 2021-07-30 | 云南电网有限责任公司昆明供电局 | Optical port power testing method based on automatic matching |
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| CN101599661A (en) * | 2009-04-02 | 2009-12-09 | 杭州中实四方电力自动化有限公司 | Full high-frequency does not have the railway signal intelligent power supply panel of two-way contact |
| CN103680238A (en) * | 2013-11-04 | 2014-03-26 | 国家电网公司 | Intelligent transformer station mixing simulation training system |
| CN204928123U (en) * | 2015-08-07 | 2015-12-30 | 国家电网公司 | Intelligent substation merging cells voltage automatic switch -over control circuit |
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| JP2010068594A (en) * | 2008-09-09 | 2010-03-25 | Mitsubishi Electric Corp | Protection and control system |
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| CN101599661A (en) * | 2009-04-02 | 2009-12-09 | 杭州中实四方电力自动化有限公司 | Full high-frequency does not have the railway signal intelligent power supply panel of two-way contact |
| CN103680238A (en) * | 2013-11-04 | 2014-03-26 | 国家电网公司 | Intelligent transformer station mixing simulation training system |
| CN204928123U (en) * | 2015-08-07 | 2015-12-30 | 国家电网公司 | Intelligent substation merging cells voltage automatic switch -over control circuit |
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| 智能变电站合并单元的运行注意事项;陈瑞章;《通讯世界》;20151130(第22期);第160页 * |
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