CN206195453U - Million units do not have high -pressure stand -by power supply's quick recovering start -up system - Google Patents
Million units do not have high -pressure stand -by power supply's quick recovering start -up system Download PDFInfo
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- CN206195453U CN206195453U CN201620998371.8U CN201620998371U CN206195453U CN 206195453 U CN206195453 U CN 206195453U CN 201620998371 U CN201620998371 U CN 201620998371U CN 206195453 U CN206195453 U CN 206195453U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The utility model provides a million units do not have high -pressure stand -by power supply's quick recovering start -up system, including the #5 generator, the #6 generator, the high factory of #51 transformer, the high factory of #52 transformer, #61 high factory transformer and the high factory of #62 transformer, the one end of #031 starting transformer links to each other with outside electric wire netting, the other end of #031 starting transformer respectively with 605 switches, 606 the one end of switch links to each other, 605 the other end of switch respectively with 6kV house 51, 61 the stand -by power supply of section links to each other, 606 the other end of switch respectively with 6kV house 52, 62 the stand -by power supply of section links to each other, the one end of #032 starting transformer links to each other with outside electric wire netting, and the other end of #032 starting transformer is continuous with the one end of 607 switches, 608 switches respectively, and the other end of 607 switches is continuous with the stand -by power supply of 53, 63 sections 6kV houses respectively, and the other end of 608 switches is continuous with the stand -by power supply of 54, 66 sections 6kV houses respectively. Ensure through two quick -witted station service interconnection that unit safety shuts down and resumes tripping operation unit high pressure station service electrical system fast, makes the high -pressure station service electrical system of unit safer.
Description
Technical field
The utility model belongs to million units without high pressure standby electricity source domain, and in particular to a kind of million unit is without high voltage standby
With the fast quick-recovery activation system of power supply.
Background technology
#5 generators, #6 generators use generator-transformer group unit style wiring, after boosting to 500kV through main transformer
Access 500kV network systems.The station-service total load of every machine is about 97MVA, these loads is shared equally onto 4 sections of 6kV buses, often
Section load only has 26MVA or so.Wherein air-introduced machine (draw and increase 7800kW after unification transformation) is the motor of peak power.
Every machine sets the change of Liang Tai high pressures factory, and four sections of 6kV buses are set altogether；Coal handling system, water charging system are separately provided 6KV buses
System, and by main building 6KV bus tape splicings.Two million unit 6KV station service electrical systems are as shown in Figure 1.
Some drawbacks are occurred in real work using this kind of connected mode, after unit tripping, because of 6KV station-services section nothing
Stand-by power supply, electric pump, follows pump, solidifying pump, send that the equipment such as air-introduced machine and big lubricating oil pump is important cannot to be started, now emergency start machine
Group diesel-driven generator, tape splicing 400V security personnel's sections, recovers main frame fuel turn manifold pump operation and provides lubricating oil system to steam turbine；Condenser
Destruction vacuum emergency shutdown, emergency cut-off height is other, closes turbine body, main reheat steam pipework hydrophobic to condenser isolation
Door.Boiler cannot go up water, cannot purge again.Close #6 each baffle plates of stove air and flue system, closed burner hearth.
Unit tripping reason prepares to recover to start after finding out, now #32 starting transformers are because of discovering device presence in maintenance
Defect, cannot temporarily recover, cause tripping operation unit cannot full recovery HV auxiliary power s ystem, cause solidifying water to meet low other desuperheating water
Consumption, unit cannot be restarted.Solidifying pumping source problem is rethought, delay system is recovered.It is interim to solidifying pump adjunction afterwards
Unit just recovers to start after power supply, and unit is just again grid-connected after being delayed 30 hours.Unit reduces the KWH of generated energy about 21,100,000.
The content of the invention
According to the deficiencies in the prior art, there is provided a kind of simple structure, make unit high-voltage Auxiliary electric system more safe and reliable
Fast quick-recovery activation system of million units without high pressure stand-by power supply.
The utility model is realized by following technical scheme：
A kind of fast quick-recovery activation system of million unit without high pressure stand-by power supply, including #5 generators, #6 generators, #
51 factory's transformers high, #52 factory's transformers high, #61 factory's transformers high and #62 factory's transformers high, the #5 generators respectively with #51
Factory's transformer high is connected with #52 factory's transformers high, #51 factory's transformers high respectively with 51,52 sections of working powers of 6kV station-services
Be connected, #52 factory's transformers high are connected with 53,54 sections of working powers of 6kV station-services respectively, the #6 generators respectively with #61
Factory's transformer high is connected with #62 factory's transformers high, #61 factory's transformers high respectively with 61,62 sections of working powers of 6kV station-services
It is connected, #62 factory's transformers high are connected and are connected with 63,64 sections of working powers of 6kV station-services respectively；Also include that #031 starts to become
Depressor and #032 starting transformers, one end of the #031 starting transformers are connected with external electrical network system, and #031 starts transformation
The other end of device respectively with 605 switch, 606 switch one end be connected, it is described 605 switch the other ends respectively with 6kV station-services
51st, 61 sections of stand-by power supply is connected, and the other ends of 606 switch are connected with the stand-by power supply of 52,62 sections of 6kV station-services respectively；
One end of the #032 starting transformers is connected with external electrical network system, and the other end of #032 starting transformers is opened with 607 respectively
Close, one end of 608 switches are connected, the other ends of 607 switch are connected with the stand-by power supply of 53,63 sections of 6kV station-services respectively,
The other ends of 608 switch are connected with the stand-by power supply of 54,66 sections of 6kV station-services respectively.
Preferably, it is separately installed with the working power of 51,52,53,54,61,62,63,64 sections of the 6kV station-services
The fast switching device I being adapted.
Preferably, the fast switching device I uses P/V-7.2 (J.S) type AC metal armored disposed withdrawn type vacuum circuit breaker.
Preferably, it is separately installed with the stand-by power supply of 51,52,53,54,61,62,63,64 sections of the 6kV station-services
The fast switching device II being adapted.
Preferably, the fast switching device II uses P/V-7.2 (J.S) type AC metal armored withdraw-type vacuum circuit breaker
Device.
Preferably, 605 switch, 606 switches, 607 switches, 608 switches are exchanged using P/V-7.2 (J.S) type
Metal armored movable vacuum circuit breaker.
The utility model beneficial effect：
House load operation reliability in existing is limited by startup and becomes, and has maintenance task or failure to exit once starting change,
Two units will lose 6KV HV auxiliary power s ystem stand-by power supplies, and very big potential safety hazard is brought to unit operation.After improved, two
The interconnection of unit station service respectively increased HV auxiliary power s ystem stand-by power supply all the way equivalent to unit, overhauls or exits for some reason when starting to become
When standby, there is non-stopping and during without station service, interconnected by two machine station services and may insure that unit safety is shut down in unit
With fast quick-recovery tripping operation unit high-voltage Auxiliary electric system, make unit high-voltage Auxiliary electric system more safe and reliable, be conducive to #03
Start the safe operation of unit during becoming maintenance.
In addition, when there is a unit outage, can also be interconnected by 6KV station services can be greatly reduced off line electricity.
Before improvement, it is 2,800,000 KW.h to start change annual consumption electricity, deducts transformer own loss, and whole year becomes electricity using startup
About 2,500,000 KW.h.After improvement, startup change electricity can be saved every year and is about 2,500,000 KW.h.It is 0.4 by the off line electricity price of change is started
Unit/（KW.h）Calculate, 1,000,000 yuan or so can be saved every year.
Brief description of the drawings
Fig. 1 is two units 6KV station service communication charts of the prior art；
Fig. 2 is two unit 6KV station service communication charts after improving.
Brief description of the drawings：#51 factory's transformers high, #52 factory's transformers high, #61 factory's transformers high, #62 factory's transformers high, #031
Starting transformer and #032 starting transformers are labeled as #51 factories high in figure and become, and #52 factories high become, and #61 factories high become and #62 factories high
Become, #031 starts to become to start with #032 and becomes；605 switches, 606 switches, 607 switches, 608 switches are labeled as 605 in figure, 606,
607、608；651 switches, 652 switches, 653 switches, 654 switches, 661 switches, 662 switches, 663 switches, 664 switches are in figure
It is labeled as 651,652,653,654,661,662,663,664；Standby 651 switch, standby 652 switch, standby 653 switch, standby 654 open
Close, standby 661 switch, standby 662 switch, standby 663 switch, standby 664 switch is labeled as 651 in figure, standby 652, standby 653, it is standby
654, standby 661, standby 662, standby 663, standby 664.
Specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described by specific embodiment.
As shown in Fig. 2 a kind of fast quick-recovery activation system of million unit without high pressure stand-by power supply, including #5 generators, #
6 generators, #51 factory's transformers high, #52 factory's transformers high, #61 factory's transformers high and #62 factory's transformers high, #5 generators difference
Be connected with #51 factory's transformers high and #52 factory's transformers high, #51 factory's transformers high respectively with 51,52 sections of working powers of 6kV station-services
Be connected, #52 factory's transformers high are connected with 53,54 sections of working powers of 6kV station-services respectively, #6 generators respectively with #61 factory's transformations high
Device is connected with #62 factory's transformers high, and #61 factory's transformers high are connected with 61,62 sections of working powers of 6kV station-services respectively, #62 factories high
Transformer is connected and is connected with 63,64 sections of working powers of 6kV station-services respectively；Also include that #031 starting transformers and #032 start to become
Depressor, one end of #031 starting transformers is connected with external electrical network system, and the other end of #031 starting transformers is opened with 605 respectively
Close, one end of 606 switches are connected, the other ends of 605 switches are connected with the stand-by power supply of 51,61 sections of 6kV station-services respectively, and 606 open
The other end of pass is connected with the stand-by power supply of 52,62 sections of 6kV station-services respectively；One end of #032 starting transformers and external electrical network
System is connected, and the one end of the other end of #032 starting transformers respectively with 607 switches, 608 switches are connected, 607 switch it is another
End is connected with the stand-by power supply of 53,63 sections of 6kV station-services respectively, 608 other ends for switching respectively with 54,66 sections of 6kV station-services
Stand-by power supply is connected.
Be separately installed with the working power that 51,52,53,54,61,62,63,64 sections of 6kV station-services be adapted cut dress soon
Put I 1, as 651 switches, 652 switches, 653 switches, 654 switches, 661 switches, 662 switches, 663 switches, 664 switches.Cut soon
Device I 1 uses P/V-7.2 (J.S) type AC metal armored disposed withdrawn type vacuum circuit breaker.
Be separately installed with the stand-by power supply that 51,52,53,54,61,62,63,64 sections of 6kV station-services be adapted cut dress soon
II 2 are put, as 651 switches, standby 652 switch, standby 653 switch, standby 654 switch, standby 661 switch, standby 662 switch, standby 663 open
Close, standby 664 switch.Fast switching device II 2 uses P/V-7.2 (J.S) type AC metal armored disposed withdrawn type vacuum circuit breaker.
Operation principle：
When two units normally run, 605,606,607,608 switches are closing position, and 51,52 sections of 6kV station-services are by #51
Factory high becomes power supply, and 53,54 sections of 6kV station-services become power supply by #52 factories high, and 61,62 sections of 6kV station-services become power supply, 6kV by #61 factories high
63,64 sections of station-service becomes power supply by #62 factories high.#031, #032 start become respectively as 6kV station-services 51 (61), 52 (62) and
The stand-by power supply of 6kV station-services 53 (63), 54 (64) sections.Each section of standby inlet switch in hot stand-by duty, corresponding fast switching device
Come into operation.During Unit Commitment, the switching of unit station service uses to manually boot cuts switching mode soon（It is in parallel）；When certain unit is adjusted
When stopping, overhaul and starting, 605,606,607,608 switches pass through 6KV backup circuit breakers to stoppage in transit unit in a point position from operation group
Power supply, realizes that station service is interconnected, that is, realize 605 switches and standby 651, standby 661 switch, 606 switches and standby 652, standby 662 switch,
607 switches and standby 653, standby 663 switch, 608 switches and the standby 654, automatic switchover manual in parallel of standby 664 switch, it is ensured that station-service
Uninterruptedly switch during electric manual switching.When operating unit protection act, newly-increased fast switching device can be started, realize closing 605,606,
607th, 608 switch, the section power supply of 6KV station-services is changed into from startup.
Stopped transport with #5 machines below, as a example by 51 sections of 6KV station-services, introduce specific switchover policy.
1）When #031 startups become, #032 startups become standby, 51 sections of 6KV station-services switch to the process that #03 starts change
Normal #031 starts change, #032 startups and becomes under spare condition, and 651 switches, 605 switches exist in conjunction position for 651 switches
Divide position.When #5 machines are stopped transport, the former fast switching device of 51 sections of 6KV station-services is manually booted, that is, close standby 651 switch, jumped 651 and switch, realized
Handoff functionality, 51 sections of variable speed 6KV station-services are started by #031.
2）When #031 startups become, #032 startups become standby, #51 sections of 6KV station-services switch to the process of #61 sections of 6KV station-services
It is first, new to 61 sections of 6KV station-services by 61 sections of 51 sections of band 6KV station-services of 6KV station-services to reduce the usage amount of external electrical
The order of automatically switching in parallel manually of cutting apparatus hair is speeded, newly-increased fast switching device closes standby 661 switch after the condition that detects meets.
Tripping 605 is switched again after confirming to be closed a floodgate for 661 switches, is realized by 61 sections of 51 sections of band 6KV station-services of 6KV station-services.Now 661 switch,
In conjunction position, the former fast switching devices of 61 sections of 6KV station-services detect position of the switch abnormal obliteration and cut soon standby 661 switch.If now #6 units
Break down（Cut including damage and judging accident）.Then start 6KV 61 sections of newly-increased fast switching devices of station-service, by its tripping
605 are closed after 661 switches to switch, realize starting 61 sections of 51 sections of variable speed 6KV station-services and 6KV station-services.
3）#031 starts change, #032 and starts the process that used time #5, #6 unit station-service section interconnection off guard switches that becomes
Which is in the case of #031, #032 start and become not standby, to be tripped when an operating unit is abnormal, standby without 6KV
With power supply, it is necessary to operations staff coordinates on the basis of DCS completes partial switch operation newly speeds when unit cannot recover to start
Cut to complete tripping operation unit 6KV station-service section recoveries.
It is the 51 sections of power supplies of fast quick-recovery 6KV station-services, using interacted system by 61 sections of 51 sections of band 6KV station-services of 6KV station-services；It is first
First, operations staff confirms 605 switches in gate-dividing state on the spot（For logic of cutting soon below provides on off state detection）.Secondth,
Operations staff will close a floodgate for a 651 switch distant places.3rd, in parallel manually automatic switchover is sent out with 61 sections of newly-increased fast switching devices of 6KV station-services
Order, newly-increased fast switching device closes standby 661 switch after the condition that detects meets.To ensure that safety is confirming standby 661 switch combined floodgate
Shi Zaifa once jumps 605 switch orders, realizes by 61 sections of 51 sections of bands.Now 661 switches, standby 661 switch are closing position, 6KV station-services
61 sections of former fast switching devices detect position of the switch abnormal obliteration original and cut soon.
After #5 units open the grid-connected on-load 280MW of machine, then the former fast switching device of 51 sections of 6KV station-services is manually booted, close 651 and open
Close, jump standby 651 switch, #5 units station-service section is recovered to the machine band.
Claims (6)
1. a kind of fast quick-recovery activation system of million unit without high pressure stand-by power supply, including #5 generators, #6 generators, #51
Factory's transformer high, #52 factory's transformers high, #61 factory's transformers high and #62 factory's transformers high, the #5 generators are high with #51 respectively
Factory's transformer is connected with #52 factory's transformers high, #51 factory's transformers high respectively with 51,52 sections of working power phases of 6kV station-services
Even, #52 factory's transformers high are connected with 53,54 sections of working powers of 6kV station-services respectively, and the #6 generators are high with #61 respectively
Factory's transformer is connected with #62 factory's transformers high, #61 factory's transformers high respectively with 61,62 sections of working power phases of 6kV station-services
Even, #62 factory's transformers high are connected and are connected with 63,64 sections of working powers of 6kV station-services respectively；
It is characterized in that：
Also include #031 starting transformers and #032 starting transformers, one end and the external electrical network system of the #031 starting transformers
System is connected, and the one end of the other end of #031 starting transformers respectively with 605 switches, 606 switches are connected, described 605 switch it is another
One end is connected with the stand-by power supply of 51,61 sections of 6kV station-services respectively, the other ends of 606 switch respectively with 6kV station-services 52,
62 sections of stand-by power supply is connected；
One end of the #032 starting transformers is connected with external electrical network system, the other end of #032 starting transformers respectively with
607 switches, one end of 608 switches are connected, the other ends of 607 switch respectively with the stand-by power supply of 53,63 sections of 6kV station-services
It is connected, the other ends of 608 switch are connected with the stand-by power supply of 54,66 sections of 6kV station-services respectively.
2. a kind of fast quick-recovery activation system of million unit according to claim 1 without high pressure stand-by power supply, its feature
It is：Cutting soon of being adapted is separately installed with the working power that 51,52,53,54,61,62,63,64 sections of the 6kV station-services
Device I.
3. a kind of fast quick-recovery activation system of million unit according to claim 2 without high pressure stand-by power supply, its feature
It is：The fast switching device I uses AC metal armored disposed withdrawn type vacuum circuit breaker.
4. a kind of fast quick-recovery activation system of million unit according to claim 1 without high pressure stand-by power supply, its feature
It is：Cutting soon of being adapted is separately installed with the stand-by power supply that 51,52,53,54,61,62,63,64 sections of the 6kV station-services
Device II.
5. a kind of fast quick-recovery activation system of million unit according to claim 4 without high pressure stand-by power supply, its feature
It is：The fast switching device II uses AC metal armored disposed withdrawn type vacuum circuit breaker.
6. a kind of fast quick-recovery activation system of million unit according to claim 1 without high pressure stand-by power supply, its feature
It is：605 switch, 606 switches, 607 switches, 608 switches use AC metal armored disposed withdrawn type vacuum circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620998371.8U CN206195453U (en) | 2016-08-31 | 2016-08-31 | Million units do not have high -pressure stand -by power supply's quick recovering start -up system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620998371.8U CN206195453U (en) | 2016-08-31 | 2016-08-31 | Million units do not have high -pressure stand -by power supply's quick recovering start -up system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206195453U true CN206195453U (en) | 2017-05-24 |
Family
ID=58729213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620998371.8U Expired - Fee Related CN206195453U (en) | 2016-08-31 | 2016-08-31 | Million units do not have high -pressure stand -by power supply's quick recovering start -up system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206195453U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066960A (en) * | 2018-08-22 | 2018-12-21 | 江苏核电有限公司 | A kind of nuclear power unit standby power supply device and its control method |
| CN110504683A (en) * | 2019-08-20 | 2019-11-26 | 国家能源集团宁夏煤业有限责任公司 | The control method and control system of grid switching operation |
| CN113363946A (en) * | 2021-04-01 | 2021-09-07 | 贵州乌江水电开发有限责任公司 | One-plant two-network power isolation optimization method |
-
2016
- 2016-08-31 CN CN201620998371.8U patent/CN206195453U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066960A (en) * | 2018-08-22 | 2018-12-21 | 江苏核电有限公司 | A kind of nuclear power unit standby power supply device and its control method |
| CN110504683A (en) * | 2019-08-20 | 2019-11-26 | 国家能源集团宁夏煤业有限责任公司 | The control method and control system of grid switching operation |
| CN113363946A (en) * | 2021-04-01 | 2021-09-07 | 贵州乌江水电开发有限责任公司 | One-plant two-network power isolation optimization method |
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Granted publication date: 20170524 Termination date: 20180831 |