CN108418217A - The configuration method of station service electrical system - Google Patents
The configuration method of station service electrical system Download PDFInfo
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- CN108418217A CN108418217A CN201810337019.3A CN201810337019A CN108418217A CN 108418217 A CN108418217 A CN 108418217A CN 201810337019 A CN201810337019 A CN 201810337019A CN 108418217 A CN108418217 A CN 108418217A
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- service electrical
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000005611 electricity Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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- H02J3/005—
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a kind of configuration methods of station service electrical system, middle pressure station service electrical system includes two units, respectively the first unit and the second unit, it is set in two sections for every unit and presses working bus bar, it is set for the first unit and the second unit and presses public busbar in two sections, tapped in the station-service working bus bar of different units；Wherein, single-row configuration wind turbine is the important load in middle pressure station service electrical system, the single-row configuration wind turbine of medium pressure station service electrical system is all accessed to one section in described two sections in pressure working bus bar, the set reformation in middle pressure station service electrical system is connected in two sections of every unit and presses working bus bar；According to the load of the middle public busbar of pressure, the middle public power distribution station of pressure is separately provided, distribution is provided for middle pressure station service electrical system.Middle pressure active section and common section are provided separately by the present invention, and according to common section load display case, public power distribution station is pressed in setting so that system configuration floor space reduces, and division of room is more reasonable.
Description
Technical field：
The present invention relates to power domain more particularly to the configuration method fields of station service electrical system.
Background technology：
In the prior art, the middle pressure station service configuration of load situation of power plant is as follows：Electrically driven feed pump is priming pump, two machines
Group sets one altogether；Condensate pump, enclosed cooling water circulating pump are two, and a fortune one is standby；The fortune one of coal pulverizer five is standby；First air
Machine, pressure fan, air-introduced machine are single-row configuration；Other loads such as subsidiary engine water circulating pump, air compressor machine, rainwater pump, rubber conveyer
Etc. being public load.
Primary air fan, pressure fan, air-introduced machine are single-row with postponing, from technological process, when unit operation, and single-row three
Big wind turbine needs overall startup, and indispensable, just to apparatus body and power supply reliability, more stringent requirements are proposed for this.To improve
Power supply reliability is needed single-row subsidiary engine centralized arrangement on the same middle pressure active section of unit, in this way in the event of another active section
When barrier, steam turbine load does not influence unit and completely sends out, and boiler also can not cause compressor emergency shutdown by the form of load shedding.
In the prior art, since the configuration equipment of Zhong Ya factories system is more so that configuration area occupied is big, and division of room does not conform to
Reason.
Invention content：
The purpose of the present invention is to provide a kind of configuration methods of station service electrical system, and middle pressure active section and common section are separated
Setting, and according to common section load display case, the middle public power distribution station of pressure is separately provided, is provided for medium pressure station service electrical system
Distribution.So that the distribution board position in the middle pressure station-service work switchgear house of steam turbine building middle layer is reduced, floor space subtracts significantly
Small, division of room is more reasonable.
The present invention is implemented by following technical solution：
In a first aspect, the present invention provides a kind of configuration method of station service electrical system,
Middle pressure station service electrical system includes two units, respectively the first unit and the second unit, and two are set for every unit
Working bus bar is pressed in section, sets for first unit and the second unit and presses public busbar in two sections, is tapped in the factory of different units
With working bus bar, and it is to press public busbar that interconnection switch is respectively set in described two sections；
Public busbar will be pressed to be connected to respectively in two sections of every unit in described two sections and press working bus bar, in described
The single-row configuration wind turbine of station service electrical system is pressed all to access one section in described two sections in pressure working bus bar, wherein described single-row
It is the important load in medium pressure station service electrical system to configure wind turbine, and the unit load in medium pressure station service electrical system is connected to
Working bus bar is pressed in two sections of every unit；
According to the load of the public busbar of medium pressure, the middle public power distribution station of pressure is separately provided, is medium pressure station service system
System provides distribution.
Further, pressure working bus bar is divided into A section busbares of work and the B sections of busbares that work in described two sections.
Further, the single-row configuration wind turbine in medium pressure station service electrical system is connected to A sections of busbares of work；By described two
Public busbar is pressed to be respectively connected to B sections of busbares of A sections of busbares of work and work in section.
Further, the single-row configuration wind turbine in middle pressure station service electrical system is connected to A sections of busbares of work；It will be in described two sections
Press the B sections of busbares of work of public busbar respectively quoted from first unit and the second unit.
Further, the single-row configuration wind turbine includes primary air fan, pressure fan and air-introduced machine.
Further, two units connect one and play standby transformer, and the described standby symmetrical tap of transformer is in described
On the station-service working bus bar of two units, first unit and the second unit are separately connected a Tai Gao factories transformer.
Advantages of the present invention：
1, middle pressure active section and common section are provided separately, and according to common section load display case, middle pressure is separately provided
Public power distribution station provides distribution for medium pressure station service electrical system.So that the middle pressure station-service work positioned at steam turbine building middle layer is matched
Distribution board position in electric room is reduced, and floor space reduces significantly, and division of room is more reasonable.
2, middle pressure common section is separately provided in full factory's public load, and single-row configuration wind turbine is uniformly connected in every A sections of unit
Working bus bar is pressed, the middle public busbar of pressure, which is connected in B of Unit section, presses working bus bar, the balancing the load after subsidiary engine can be kept single-row.
3, the setting of middle pressure common section and interconnection switch strengthens the list of unit convenient for being managed concentratedly to public load
Member, not one unit station service electrical system failure of reason influence the normal operation of other units, to cooperation unit maintenance, shut down with
And maintenance affiliated auxiliary switchgear of the unit etc. is more convenient.
Description of the drawings：
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 technology 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
Obtain other attached drawings according to these attached drawings.
A kind of structural schematic diagram of the configuration method for station service electrical system that Fig. 1 is provided by the embodiment of the present invention.
Specific implementation mode：
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 describes, 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, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
In a first aspect, Fig. 1 shows a kind of configuration method for station service electrical system that the embodiment of the present invention is provided；Such as Fig. 1
Shown, embodiment one provides a kind of configuration method of station service electrical system, including：
Middle pressure station service electrical system includes two units, respectively the first unit 1 and the second unit 2, is set for every unit
Working bus bar is pressed in two sections, wherein the first unit 1, which is arranged in two sections, presses working bus bar 10A, 10B, the second unit 2 is arranged in two sections
Working bus bar 20A, 20B are pressed, sets for the first unit 1 and the second unit 2 and presses public busbar 01A, 01B in two sections, wherein 01A draws
From in the first unit 1 press working bus bar 10B, 01B quoted from the second unit 2 press working bus bar 20B, public busbar 01A with it is public
Busbar 01B setting interconnection switches and busbar 10.
Public busbar will be pressed to be connected to tap respectively in the station-service working bus bar of different units, by middle pressure station service system in two sections
The single-row configuration wind turbine 3 of system accesses pressure working bus bar in two units 10A and 20A and uses, will be public in middle pressure station service electrical system
Load 4, which is connected in two sections, presses public busbar.
According to the load of the public busbar of medium pressure 20 and 21, the middle public power distribution station of pressure is separately provided, is medium pressure factory
Electricity system provides distribution.Specifically, public power distribution station can be pressed in the boiler room of the first unit 1 is separately provided so that be located at
Reduce 31 faces in distribution board position in the middle pressure station-service work switchgear house of steam turbine building middle layer (for two units).
According to the load of the public busbar 01A and 01B of medium pressure, the middle public power distribution station of pressure is separately provided, is medium pressure
Station service electrical system provides distribution.Specifically, public power distribution station can be pressed in the boiler room of the first unit 1 is separately provided so that position
Reduce 31 faces in distribution board position in the middle pressure station-service work switchgear house of steam turbine building middle layer (for two units).
Preferably, pressure working bus bar is divided into A section busbares of work and the B sections of busbares that work in two sections.
Preferably, the single-row configuration wind turbine in middle pressure station service electrical system is connected to A sections of busbares of work；It is public by being pressed in two sections
Busbar is respectively connected to B sections of busbares of work of two units.
Referring to Fig. 1,1 corresponding middle pressure working bus bar of the first unit is divided into 10B sections of busbares of 10A sections of busbares of work and work,
Second unit, 2 corresponding middle pressure working bus bar is respectively the 20B sections of busbares of 20A sections of busbares and work that work；Wherein, single-row configuration wind
Machine 3 is altogether 2 parts, is connected to 20A sections of busbares of 10A sections of busbares of work and work respectively；Wherein, 01A in the first unit 1 quoted from pressing
Working bus bar 10B, 01B press working bus bar 20B, public busbar 01A and public busbar 01B that contact is arranged quoted from the second unit 2
Switch and busbar 10.Public load 4 is altogether 2 parts, is connected to public 01A sections of busbar and public 01B sections of busbar respectively.
Specifically, in the present embodiment, the main transformer 5 of the first unit 1 and the second unit 2 selects 750MVA.First unit 1 and
Two units 2 are followed by through main transformer boosting to the power distribution equipment of 500kV.The generator of first unit 1 and the second unit 2 selects 660MW.
Wherein, the public load 4 in middle pressure station service electrical system is often referred to subsidiary engine water circulating pump, air compressor machine, rainwater pump, adhesive tape
Conveyer.
Wherein, the low pressure such as unit load 4 is often referred to steam turbine load, six coal pulverizers and machine, stove becomes, dedusting becomes, air-cooled change
Dry-type transformer.
Wherein, single-row configuration wind turbine 3 includes primary air fan, pressure fan and air-introduced machine.
Preferably, one standby transformer 6 is set in the unit, plays standby transformer 6 and symmetrically taps in the station-service of two units
On working bus bar 10A, 10B, 20A, 20B, the first unit 1 and the second unit 2 are separately connected a Tai Gao factories transformer 7.Play standby become
Depressor connects the power distribution equipment of 110kV.
Two units set 1 and play standby transformer with capacity with the high factory's transformer of unit, can simplify auxiliary single-line diagram, reduce
The accident rate of HV Auxiliary Transformer so that transformer Ground arrangement is simply clear.
Wherein, high factory's transformer 7 is that high-pressure system turns dedicated transformer of the low-pressure system for Auxiliary System in Power Plant.Unit transformer
Depressor is the transformer of unit productive power.The transformer of stand-by power supply is provided a standby transformer 6.
Advantages of the present invention：
1, middle pressure active section and common section are provided separately, and according to common section load display case, middle pressure is separately provided
Public power distribution station provides distribution for medium pressure station service electrical system.So that the middle pressure station-service work positioned at steam turbine building middle layer is matched
Distribution board position in electric room is reduced, and floor space reduces significantly, and division of room is more reasonable.
2, middle pressure common section is separately provided in full factory's public load, and single-row configuration wind turbine is uniformly connected in every A sections of unit
Working bus bar is pressed, the middle public busbar of pressure, which is connected in B of Unit section, presses working bus bar, the balancing the load after subsidiary engine can be kept single-row
3, the setting of middle pressure common section and interconnection switch strengthens the list of unit convenient for being managed concentratedly to public load
Member, not one unit station service electrical system failure of reason influence the normal operation of other units, to cooperation unit maintenance, shut down with
And maintenance affiliated auxiliary switchgear of the unit etc. is more convenient.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of configuration method of station service electrical system, which is characterized in that including：
Middle pressure station service electrical system includes two units, respectively the first unit and the second unit, is set in two sections for every unit
Working bus bar is pressed, sets for first unit and the second unit and presses public busbar in two sections, is tapped in the station-service work of different units
Make busbar, and is to press public busbar that interconnection switch is respectively set in described two sections；
Public busbar will be pressed to be connected to respectively in two sections of every unit in described two sections and press working bus bar, by medium pressure factory
The single-row configuration wind turbine of electricity system all accesses one section in pressure working bus bar in described two sections, wherein the single-row configuration
Wind turbine is the important load in medium pressure station service electrical system, the unit load in medium pressure station service electrical system is connected to described
Working bus bar is pressed in two sections of every unit；
According to the load of the public busbar of medium pressure, the middle public power distribution station of pressure is separately provided, is carried for medium pressure station service electrical system
Power supply and distribution.
2. the configuration method of station service electrical system according to claim 1, which is characterized in that
Working bus bar is pressed to be divided into B sections of busbares of A sections of busbares of work and work in described two sections.
3. the configuration method of station service electrical system according to claim 2, which is characterized in that
Single-row configuration wind turbine in medium pressure station service electrical system is connected to A sections of busbares of work；Public mother will be pressed in described two sections
Line is respectively connected to B sections of busbares of work of the first unit and the second unit.
4. the configuration method of station service electrical system according to claim 1, which is characterized in that
The single-row configuration wind turbine includes primary air fan, pressure fan and air-introduced machine.
5. the configuration method of station service electrical system according to claim 1, which is characterized in that
Two units connect one and play standby transformer, and the described standby symmetrical tap of transformer is in the station-service of two units
On working bus bar, first unit and the second unit are separately connected a Tai Gao factories transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810337019.3A CN108418217A (en) | 2018-04-16 | 2018-04-16 | The configuration method of station service electrical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810337019.3A CN108418217A (en) | 2018-04-16 | 2018-04-16 | The configuration method of station service electrical system |
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| Publication Number | Publication Date |
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| CN108418217A true CN108418217A (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810337019.3A Withdrawn CN108418217A (en) | 2018-04-16 | 2018-04-16 | The configuration method of station service electrical system |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110086248A (en) * | 2019-05-15 | 2019-08-02 | 中国能源建设集团湖南省电力设计院有限公司 | One kind being used for grid type power plant auxiliary system |
| CN111431170A (en) * | 2020-03-17 | 2020-07-17 | 神华神东电力有限责任公司 | Factory power system of power plant |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203522182U (en) * | 2013-09-11 | 2014-04-02 | 河北省电力勘测设计研究院 | Medium voltage station service system in auxiliary engine single-row configuration of two units in thermal power plant |
-
2018
- 2018-04-16 CN CN201810337019.3A patent/CN108418217A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203522182U (en) * | 2013-09-11 | 2014-04-02 | 河北省电力勘测设计研究院 | Medium voltage station service system in auxiliary engine single-row configuration of two units in thermal power plant |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110086248A (en) * | 2019-05-15 | 2019-08-02 | 中国能源建设集团湖南省电力设计院有限公司 | One kind being used for grid type power plant auxiliary system |
| CN110086248B (en) * | 2019-05-15 | 2023-05-26 | 中国能源建设集团湖南省电力设计院有限公司 | Power station service system for grid-connected power plant |
| CN111431170A (en) * | 2020-03-17 | 2020-07-17 | 神华神东电力有限责任公司 | Factory power system of power plant |
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Application publication date: 20180817 |