CN208890393U - A kind of multipotency combined power plant black starting-up distribution system - Google Patents
A kind of multipotency combined power plant black starting-up distribution system Download PDFInfo
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- CN208890393U CN208890393U CN201821416706.6U CN201821416706U CN208890393U CN 208890393 U CN208890393 U CN 208890393U CN 201821416706 U CN201821416706 U CN 201821416706U CN 208890393 U CN208890393 U CN 208890393U
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Abstract
The utility model discloses a kind of multipotency combined power plant black starting-up distribution system structure, multipotency is constituted using sun-generated electric power, wind power source and diesel generating set and combines black starting-up power supply, wind power plant special line, solar energy special line power supply capacity are much larger than diesel generating set, carrying load ability is much stronger than diesel generating set, black starting-up load can switch in batch simultaneously, without starting in batches, be conducive to quick start generating set, the reliability of black starting-up power supply is improved, quality of voltage, performance driving economy and pollutant emission are improved.Wind power plant special line, solar energy special line power supply power quality, performance driving economy, pollutant emission are all better than diesel generating set.System structure is simple, technology maturation, failure rate are low, high reliablity, cost and day-to-day operation safeguard that simple expense is low.
Description
Technical field
The utility model relates to electrical power supply and distribution fields, are related to the black starting-up power supply technique more particularly to one of generating set
Kind multipotency combined power plant black starting-up distribution system.
Background technique
Black starting-up is power grid because failure paralysis (blackout) causes power plant off-the-line to be shut down, lose internal service power and
Outside starting utility power and can not be extensive in the case of normal self-starting, by the emergency power sources of self-preparing gradually self-starting generating set
The start-up course (black start) of telegram in reply Force system.Power plant self-starting when black starting-up distribution system is electric network fault power loss
Emergency power supply, ensure power grid power supply safety last line of defense.
When regional power grid because failure is paralysed, safe automatic protection device movement by online power plant and grid disconnection and is shut down；
After trouble shooting, it is necessary to restart generating set and restore the whole network power supply.Because failure causes the whole network unit trip to be shut down, power generation
Unit has lost all power, it is necessary to restart by black starting-up power supply.
Typical black start-up course are as follows: starting black starting-up diesel generating set is powered to black starting-up bus section, busbar section, sequence investment hair
Power plant's lighting system, Control protection system, fuel delivery system, dynamic system of heat energy adjust heating power load, step by step input carbonated drink
System cuts steam turbine generator, stablizes to generating set and can switch station service power supply, black starting-up bavin with underrun
Oily generating set exits, and generating set is grid-connected to make grid parts restore electricity, and is gradually increased load until reaching specified operation shape
State completes black starting-up.
Usual power plant is using diesel-driven generator as black starting-up power supply.From the point of view of actual motion effect, since diesel oil is sent out
The factors such as the situation of manufacture and assembling quality, operational management and maintenance of motor group, reliability is not ideal enough, such as starts success rate
It is low, the starting time is long, operation power quality is bad etc., influence generating set black starting-up reliability.Therefore, using a kind of multipotency group
Close reliability and runnability that distribution system structure improves, improves power plant black starting-up.
There is presently no perfect multipotency combined power plant black starting-up distribution system structures.
Utility model content
Aiming at the problems existing in the prior art, the purpose of this utility model is to provide a kind of multipotency combined power plant is black
Start distribution system, applied solar energy power supply, wind power source and diesel generating set constitute multipotency and combine black starting-up power supply, improve
The reliability of black starting-up power supply improves power quality, performance driving economy and pollutant emission.
The utility model is to be achieved through the following technical solutions:
A kind of multipotency combined power plant black starting-up distribution system, including black starting-up bus section, busbar section HQM and combined floodgate synchronization device TQJ
And wind power plant special line L1 and generator special line L3 in parallel；
The transformer of wind power plant special line L1 is connect by switch 1ZKK with black starting-up bus HQM, transformer and switch 1ZKK
Between be provided with tap, tap is connect with one end of voltage transformer 1PT, the other end and asynchronous switch-on of voltage transformer 1PT
The input terminal of device TQJ connects, and the output end of asynchronous switch-on device TQJ is connect with switch 1ZKK, and asynchronous switch-on device TQJ is also logical
Overvoltage mutual inductor PT is connect with black starting-up bus HQM；
Generating set special line L3 is connect by switch 3ZKK with black starting-up bus HQM, between generating set and switch 3ZKK
It is provided with tap, tap is connect with one end of voltage transformer 3PT, the other end and asynchronous switch-on device of voltage transformer 3PT
TQJ connection, asynchronous switch-on device TQJ are connect with switch 3ZKK.
It preferably, further include the solar energy special line L2 in parallel with wind power plant special line L1；
The transformer of solar energy special line L2 is connect by switch 2ZKK with black starting-up bus HQM, transformer and switch 2ZKK
Between be provided with tap, tap is connect with one end of voltage transformer 2PT, the other end and asynchronous switch-on of voltage transformer 2PT
The input terminal of device TQJ connects, and the output end of asynchronous switch-on device TQJ is connect with switch 2ZKK.
Preferably, the transformer of the wind power plant special line L1 and solar energy special line L2 are step-down isolation transformer.
Preferably, wind power plant special line L1, solar energy special line L2 are connected using the high-pressure side of cable or aerial condutor and transformer
It connects.
Preferably, the low-pressure side of the transformer is connect using hard bus with black starting-up bus HQM.
Preferably, the generator special line L3 is generated electricity using diesel generating set.
Compared with prior art, the utility model has technical effect beneficial below:
The multipotency combined power plant black starting-up distribution system structure of the utility model, using black starting-up diesel generating set,
Wind power plant special line, solar energy special line form three kinds of energy pattern combinations, the completely self-contained power supply joint power supply in each road.Even if complete
In the case where mains breakdown, by wind power plant special line, solar energy special line, the black starting-up power supply supply of power plant can be ensured, in addition
Black starting-up diesel generating set is greatly improved as standby means, the reliability of black starting-up power supply.
Wind power plant special line, solar energy special line power supply capacity are much larger than diesel generating set, and carrying load ability is much stronger than diesel oil
Generating set, black starting-up load can switch in batch simultaneously, without starting in batches, be conducive to quick start generating set.
Wind power plant special line, solar energy special line power supply power quality, performance driving economy, pollutant emission are all better than diesel generation
Unit.
Detailed description of the invention
Fig. 1 is the circuit diagram of Tthe utility model system；
In figure: 1, diesel generating set；2, transformer.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, it is described be the explanation to the utility model and
It is not to limit.
As shown in Figure 1, a kind of multipotency combined power plant black starting-up distribution system, including motor group special line L3, wind power plant are special
Line L1 and solar energy special line L2, three power supply lines are in parallel with the black starting-up bus HQM of generating set, three power supply line's independences
Power supply.By wind power plant special line, solar energy special line, in the case where ensureing full electric network collapse, black starting-up power supply is supplied to power plant.
Backup power supply of the generating set special line L3 as wind power plant special line and solar energy special line.Generating set special line L3 uses diesel generation
Unit 1 generates electricity.
The transformer 2 of wind power plant special line L1 is connect by switch 1ZKK with black starting-up bus HQM, transformer 2 and switch
Tap is provided between 1ZKK, tap is connect with one end of voltage transformer 1PT, the other end of voltage transformer 1PT and the same period
Closing device TQJ connection, asynchronous switch-on device TQJ are connect with switch 1ZKK, and asynchronous switch-on device TQJ also passes through voltage transformer
PT is connect with black starting-up bus HQM.
The transformer 2 of solar energy special line L2 is connect by switch 2ZKK with black starting-up bus HQM, transformer 2 and switch
Tap is provided between 2ZKK, tap is connect with one end of voltage transformer 2PT, the other end of voltage transformer 2PT and the same period
Closing device TQJ connection, asynchronous switch-on device TQJ are connect with switch 2ZKK.
Diesel generating set special line L3 is connect by switch 3ZKK with black starting-up bus HQM, diesel generating set and switch
Tap is provided between 3ZKK, tap is connect with one end of voltage transformer 3PT, the other end of voltage transformer 3PT and the same period
Closing device TQJ connection, asynchronous switch-on device TQJ are connect with switch 3ZKK.
Transformer 2 is decompression/isolating transformer；High voltage side of transformer cable or aerial condutor and wind power plant special line L1,
The L2 connection of solar energy special line；Step down side is connect with hard bus with power distribution equipment bus.The outlet cable of power distribution equipment
Connection.Diesel-driven generator outlet passes through cable connection to power distribution equipment.Transformer is in hot stand-by duty can carry out electricity at any time
Source switching, power supply handover success rate are high.
Transformer 2 and power distribution equipment are arranged in dedicated switchgear house.There are heating and ventilation, illumination, maintenance lifting facility in interior.
Instrument, control, protection and automatic device are mounted in power distribution equipment cabinet body.
Diesel generating set is arranged in special workshop.The air inlet of diesel engine, exhaust apparatus lead to outdoor.Interior has daily
Fuel tank, fire-fighting, heating and ventilation, illumination, maintenance lifting facility.Fuel passage is connected to diesel engine oil inlet from fuel tank.
Equipment Foundations load equipment load requirement, firm straight, embedded part size is accurate.
It is detailed to a kind of working principle progress of multipotency combined power plant black starting-up distribution system provided by the present application below
Elaboration.
Wind power plant special line L1, solar energy special line L2 normal condition are in electriferous state, and transformer 2 is in electrification stand-by heat shape
State, bus-tie circuit breaker 1ZKK, 2ZKK, 3ZKK are off-state.Black starting-up bus section, busbar section HQM voltage is very important voltage value,
Central control room monitoring.
Work as electric network fault, generating set off-the-line is shut down, and black starting-up bus HQM loses normal work power supply, voltage transformer
PT power loss can be closed wind power plant special line L1 incoming switch 1ZKK or solar energy special line L2 incoming switch 2ZKK.
It can also be according to the requirement of power plant's black starting-up and wind power plant special line L1, the load condition of solar energy special line L2 at that time, the same period
Closing device TQJ detects special line and black starting-up busbar voltage waveform, when voltage waveform is consistent, in asynchronous switch-on device TQJ differentiation
After combined floodgate condition, it is closed at switch 1ZKK and 2ZKK paired running.
Under extreme serious conditions, as power loss, starting black starting-up diesel oil are sent out simultaneously by wind power plant special line L1, solar energy special line L2
Motor power supply.
After generating set, which starts, successfully to restore electricity, black starting-up bus section, busbar section HQM is switched to normal work power supply power supply, black
Starting is accused and is completed.
The multipotency combined power plant black starting-up distribution system, two-way is black opens for wind power plant special line L1, solar energy special line L2 composition
Dynamic power supply joint power supply shuts down when electric network fault collapse power plant off-the-line and loses service power, sentences by combined floodgate synchronization device TQJ
Not after combined floodgate condition, it is closed 1ZKK or 2ZKK, is switched to wind power plant special line L1, solar energy special line L2 to black starting-up bus section, busbar section HQM
Power supply；Under extreme serious conditions, the equal failure power loss of wind power plant special line L1, solar energy special line L2, diesel-driven generator is quick at this time
Starting, provides backup power supply.
Occur electric network fault cause power grid paralysis generating set off-the-line shut down, can switch immediately investment wind power plant special line,
Solar energy special line guarantees power plant's not power loss to power plant black starting-up bussed supply.Because wind power plant or solar plant only need outer
There is wind in portion, has light that can generate electricity, even if in the case of electric network fault off-the-line, wind-driven generator or solar panel can still continue
Operation power generation；It is transmitted electric power using industrial siding, with power network without coupling, is not influenced, guaranteed in electric network fault feelings by power grid accident
Under condition, pass through industrial siding still reliable power supply.After electric network fault releases, power plant relies on wind-powered electricity generation or solar energy black starting-up, by upper
Startup program is stated to restore electricity.Black starting-up diesel generating set is only used as standby means.Therefore, black starting-up power supply is reliable
Property greatly improves.Wind-powered electricity generation or the capacity of solar plant are more much bigger than diesel-driven generator, and on-load ability is strong, motor start-up and
Working voltage stability and power quality are better than diesel-driven generator, and starting performance is good, success rate is high.Wind-powered electricity generation or solar plant electricity
Can be more more economical than diesel-driven generator, black starting-up performance driving economy is more preferable, pollutant emission is lower.
The utility model discloses a kind of multipotency combined power plant black starting-up distribution system structure, using sun-generated electric power, wind
Energy power supply and diesel generating set constitute multipotency and combine black starting-up power supply, improve the reliability of black starting-up power supply, improve voltage matter
Amount, performance driving economy and pollutant emission.
Compared to conventional single black starting-up diesel-generator power sources, black starting-up diesel generating set, wind power plant special line, too
Positive energy special line constitutes three kinds of energy patterns combinations, the completely self-contained power supply joint power supply in each road, and the reliability of black starting-up power supply is big
It is big to improve.
Wind power plant special line, solar energy special line power supply capacity are much larger than diesel generating set, and carrying load ability is much stronger than diesel oil
Generating set, black starting-up load can switch in batch simultaneously, without starting in batches, be conducive to quick start generating set.
Wind power plant special line, solar energy special line power supply power quality, performance driving economy, pollutant emission are all better than diesel generation
Unit.System structure is simple, technology maturation, failure rate are low, high reliablity, cost and day-to-day operation safeguard that simple expense is low.
The above content is only to illustrate the technical idea of the utility model, and the protection model of the utility model cannot be limited with this
Enclose, it is all according to the utility model proposes technical idea, any changes made on the basis of the technical scheme each falls within this reality
Within protection scope with novel claims.
Claims (6)
1. a kind of multipotency combined power plant black starting-up distribution system, which is characterized in that including black starting-up bus section, busbar section HQM, close a floodgate together
Phase device TQJ and the wind power plant special line L1 and generator special line L3 of parallel connection；
The transformer of wind power plant special line L1 is connect by switch 1ZKK with black starting-up bus HQM, between transformer and switch 1ZKK
It is provided with tap, tap is connect with one end of voltage transformer 1PT, the other end and asynchronous switch-on device of voltage transformer 1PT
The input terminal of TQJ connects, and the output end of asynchronous switch-on device TQJ is connect with switch 1ZKK, and asynchronous switch-on device TQJ also passes through electricity
Pressure mutual inductor PT is connect with black starting-up bus HQM；
Generating set special line L3 is connect by switch 3ZKK with black starting-up bus HQM, is arranged between generating set and switch 3ZKK
There is tap, tap is connect with one end of voltage transformer 3PT, and the other end and asynchronous switch-on device TQJ of voltage transformer 3PT connects
It connects, asynchronous switch-on device TQJ is connect with switch 3ZKK.
2. a kind of multipotency combined power plant black starting-up distribution system according to claim 1, which is characterized in that further include and wind
The solar energy special line L2 of electric field special line L1 parallel connection；
The transformer of solar energy special line L2 is connect by switch 2ZKK with black starting-up bus HQM, between transformer and switch 2ZKK
It is provided with tap, tap is connect with one end of voltage transformer 2PT, the other end and asynchronous switch-on device of voltage transformer 2PT
The input terminal of TQJ connects, and the output end of asynchronous switch-on device TQJ is connect with switch 2ZKK.
3. a kind of multipotency combined power plant black starting-up distribution system according to claim 2, which is characterized in that the wind power plant
The transformer of special line L1 and solar energy special line L2 are step-down isolation transformer.
4. a kind of multipotency combined power plant black starting-up distribution system according to claim 2, which is characterized in that wind power plant special line
L1 and solar energy special line L2 is connected using the high-pressure side of cable or aerial condutor and transformer.
5. a kind of multipotency combined power plant black starting-up distribution system according to claim 1, which is characterized in that the transformer
Low-pressure side connect with black starting-up bus HQM using hard bus.
6. a kind of multipotency combined power plant black starting-up distribution system according to claim 1, which is characterized in that the generator
Special line L3 is generated electricity using diesel generating set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201821416706.6U CN208890393U (en) | 2018-08-30 | 2018-08-30 | A kind of multipotency combined power plant black starting-up distribution system |
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| CN201821416706.6U CN208890393U (en) | 2018-08-30 | 2018-08-30 | A kind of multipotency combined power plant black starting-up distribution system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492601A (en) * | 2019-09-20 | 2019-11-22 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of multipotency mutually helps Service Power in Thermal Power Plant source system and its control method |
-
2018
- 2018-08-30 CN CN201821416706.6U patent/CN208890393U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492601A (en) * | 2019-09-20 | 2019-11-22 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of multipotency mutually helps Service Power in Thermal Power Plant source system and its control method |
| CN110492601B (en) * | 2019-09-20 | 2024-02-06 | 中国电力工程顾问集团西北电力设计院有限公司 | Power supply system for multi-energy mutual-aid thermal power plant and control method thereof |
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