CN208241410U - Digitized hydropower plant excitation system structure - Google Patents
Digitized hydropower plant excitation system structure Download PDFInfo
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- CN208241410U CN208241410U CN201820930147.4U CN201820930147U CN208241410U CN 208241410 U CN208241410 U CN 208241410U CN 201820930147 U CN201820930147 U CN 201820930147U CN 208241410 U CN208241410 U CN 208241410U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
Abstract
Digitized hydropower plant excitation system structure, is related to digitized hydropower plant field, specially a kind of to be based on IEC61850 communication standard, the digitized hydropower plant excitation system structure controlled with digital form.The utility model includes master system, generator-transformer protection device, LCU for generator set, digitlization excitation unit, intelligent terminal I, intelligent terminal II and combining unit; master system is arranged in station level; LCU for generator set, digitlization excitation unit, the setting of generator-transformer protection device are arranged in elementary layer, intelligent terminal I, intelligent terminal II and combining unit in process layer；Digitlization excitation unit passes through station level network longitudinally upward and connect with master system, longitudinally passes downwardly through process-level network and connect with intelligent terminal I, intelligent terminal II and combining unit, laterally connect with LCU for generator set, generator-transformer protection device.The utility model, as transmission medium, is carried out data exchange, effectively reduces cable, increase transmission information content, expand transmission range using optical fiber.
Description
Technical field
The utility model relates to digitized hydropower plant fields, specially a kind of to be based on IEC61850 communication standard, with number
The digitized hydropower plant excitation system structure that change mode is controlled.
Background technique
Excitation system is the vital equipment of turbine-generator units control and adjusting, usually by adjustment of field excitation unit,
Exciting power unit and demagnetization unit three parts are constituted.Currently, the start stop command of LCU for generator set, generator outlet circuit breaker position,
Current-voltage transformer etc. is inputted in the form of switching value, analog quantity by cable, and the state of excitation system, fault-signal are logical
It crosses cable to be exported in the form of switching value, analog quantity into LCU for generator set or remaining intelligent electronic device, to complete to excitation system
Complete monitoring.
The traditional control structure of excitation system is used a large amount of cables to be carried out signal transmission in the form of switching value, analog quantity, had
Construction and O&M trouble, the disadvantages of transmission information content is limited, and poor anti jamming capability, transmission range is short, and long-range control is inconvenient.
Summary of the invention
To be solved in the utility model is exactly traditional control method, and construction and O&M trouble, transmission information content is limited,
The disadvantages of poor anti jamming capability, transmission range is short, long-range control inconvenience provides one kind based on IEC61850 communication standard, with number
The digitized hydropower plant excitation system structure that word mode is controlled.
The digitized hydropower plant excitation system structure of the utility model is arranged in digitized hydropower plant Digitallized system,
The system is made of three layer of two net, and three layers include station level, elementary layer and process layer, and two nets include station level network and process layer
Network, it is characterised in that the excitation system structure includes master system, generator-transformer protection device, LCU for generator set, digitlization excitation
Device, intelligent terminal I, intelligent terminal II and combining unit, master system setting are encouraged in station level, LCU for generator set, digitlization
Magnetic device, the setting of generator-transformer protection device are arranged in elementary layer, intelligent terminal I, intelligent terminal II and combining unit in process
Layer；Digitlization excitation unit passes through station level network longitudinally upward and connect with master system, longitudinally passes downwardly through process layer net
Network is connect with intelligent terminal I, intelligent terminal II and combining unit, is laterally connect with LCU for generator set, generator-transformer protection device.
The digitlization excitation unit and master system, LCU for generator set pass through optical fiber between generator-transformer protection device and connect
It connects, by cable connection between intelligent terminal I, intelligent terminal II, combining unit, connection protocol meets IEC61850 communication mark
It is quasi-.
Digitlization excitation unit uploads all kinds of states, fault-signal upwards, receives the various signals in scene downwards, laterally receives
Throwing moves back and regulating command and sends out main signal.
The digitlization excitation unit includes that automatic voltage adjusts unit, power cell, demagnetization unit, wherein automatically
Voltage regulation unit includes field regulator A and field regulator B, and field regulator A passes through station level network and host computer system
System connection, is connect by process-level network with intelligent terminal I；Field regulator B is connected by station level network and master system
It connects, is connect by process-level network with combining unit；Demagnetization unit is connect by process-level network with intelligent terminal II.
The intelligent terminal I is connect by cable with outlet breaker, and combining unit is mutual with electric current respectively by cable
Sensor, voltage transformer connection, intelligent terminal II are connect by cable with main transformer high-pressure side breaker.
Data acquisition and information interaction approach are as follows:
1) voltage of acquisition, current signal are converted to SV lattice by combining unit with voltage transformer by current transformer
Formula, is uploaded to process-level network, and automatic voltage adjusts unit and obtains electric current, voltage value by process-level network；
2) position signal of outlet breaker and main transformer high-pressure side breaker passes through intelligent terminal respectively and is uploaded to process layer
Network, automatic voltage adjust unit and obtain circuit breaker position state by process-level network；
3) master system directly issues reactive power given value to digitizing excitation unit by station level network, number
Change the closed-loop control that power station excitation system completes reactive power, all signals of digitized hydropower plant excitation system pass through station control
Layer network is uploaded to master system, and when master system failure, then digitized hydropower plant excitation system automatically switches to generator terminal
Voltage close loop mode maintains current set end voltage, while digitizing excitation unit and being transferred to signal by process-level network
LCU for generator set；
4) LCU for generator set moves back control command to the throwing of digitlization excitation unit and sends digitlization excitation to by process-level network
Device digitizes excitation unit by process-level network and reactive power and fault-signal is sent to LCU for generator set；
5) the pressure regulation order of LCU for generator set is sent to digitlization excitation unit by process-level network.
The digitized hydropower plant excitation system structure of the utility model realizes digital collection using electronic mutual inductor,
Digital communication is carried out using IEC61850 communication standard between excitation system and other equipment；LCU for generator set is eliminated simultaneously
Power regulation functions directly issue reactive power given value by station level network by master system and give digitlization excitation system
System, digitlization excitation system need voluntarily to complete the function of reactive power closed-loop control；And digitize excitation system and outside
Have a large amount of information exchange between system, division order, degaussing switch position including degaussing switch send outside and excitation electricity
The output of galvanic electricity pressure, therefore carry out data exchange as transmission medium using optical fiber, effectively reduce cable, increase transmission
Information content expands transmission range, improves anti-interference ability, facilitates construction and maintenance work.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Wherein, station level 1, elementary layer 2, process layer 3, master system 4, generator-transformer protection device 5, LCU for generator set 6, number
Word excitation unit 7, intelligent terminal I 8, intelligent terminal II 9, combining unit 10, automatic voltage adjust unit 11, power cell
12, demagnetization unit 13, field regulator A 14, field regulator B 15.
Specific embodiment
Embodiment 1: a kind of digitized hydropower plant excitation system structure is arranged in digitized hydropower plant Digitallized system,
The system is made of three layer of two net, and three layers include station level 1, elementary layer 2 and process layer 3, and two nets include 1 network of station level and mistake
3 network of journey layer, the excitation system structure include master system 4, generator-transformer protection device 5, LCU for generator set 6, digitlization excitation
Device 7, intelligent terminal I 8, intelligent terminal II 9 and combining unit 10, master system 4 are arranged in station level 1, LCU for generator set
6, excitation unit 7, the setting of generator-transformer protection device 5 are digitized in elementary layer 2, intelligent terminal I 8, intelligent terminal II 9 and conjunction
And unit 10 is arranged in process layer 3；Excitation unit 7 is digitized to connect by 1 network of station level and master system 4 longitudinally upward
Connect, longitudinally pass downwardly through 3 network of process layer and connect with intelligent terminal I 8, intelligent terminal II 9 and combining unit 10, laterally with
LCU for generator set 6, generator-transformer protection device 5 connect.It digitizes excitation unit 7 and master system 4, LCU for generator set 6, transformer unit is protected
It is connected between protection unit 5 by optical fiber, is connected between intelligent terminal I 8, intelligent terminal II 9, combining unit 10 by cable
It connects, connection protocol meets IEC61850 communication standard.Digitlization excitation unit 7 uploads all kinds of states, fault-signal upwards, downwards
The various signals in scene are received, laterally receives to throw and moves back and regulating command and send out main signal.
Digitlization excitation unit 7 includes that automatic voltage adjusts unit 11, power cell 12, demagnetization unit 13, wherein certainly
Dynamic voltage regulation unit 11 includes field regulator A 14 and field regulator B 15, and field regulator A 14 passes through station level 1
Network is connect with master system 4, is connect by 3 network of process layer with intelligent terminal I 8；Field regulator B 15 passes through station control
1 network of layer is connect with master system 4, is connect by 3 network of process layer with combining unit 10；Demagnetization unit 13 passes through process layer
3 networks are connect with intelligent terminal II 9.Intelligent terminal I 8 is connect by cable with outlet breaker, and combining unit 10 passes through net
Line is connect with current transformer, voltage transformer respectively, and intelligent terminal II 9 is connect by cable with main transformer high-pressure side breaker.
Data acquisition and information interaction approach are as follows:
1) voltage of acquisition, current signal are converted to SV lattice by combining unit 10 with voltage transformer by current transformer
Formula, is uploaded to 3 network of process layer, and automatic voltage adjusts unit 11 and obtains electric current, voltage value by 3 network of process layer；
2) position signal of outlet breaker and main transformer high-pressure side breaker passes through intelligent terminal respectively and is uploaded to process layer 3
Network, automatic voltage adjust unit 11 and obtain circuit breaker position state by 3 network of process layer；
3) master system 4 directly issues reactive power given value extremely digitlization excitation unit 7 by 1 network of station level,
Digitized hydropower plant excitation system completes the closed-loop control of reactive power, and all signals of digitized hydropower plant excitation system pass through
1 network of station level is uploaded to master system 4, and when 4 failure of master system, then digitized hydropower plant excitation system automatically switches
To set end voltage closed loop mode, current set end voltage is maintained, while digitizing excitation unit 7 to believe by 3 network of process layer
Number transfer to LCU for generator set 6；
4) throwing of 6 pairs of LCU for generator set digitlization excitation units 7 moves back control command by 3 transmission of network of process layer to digitlization
Excitation unit 7 digitizes excitation unit 7 by 3 network of process layer and reactive power and fault-signal is sent to LCU for generator set 6；
5) the pressure regulation order of LCU for generator set 6 is sent to digitlization excitation unit 7 by 3 network of process layer.
Claims (4)
1. a kind of digitized hydropower plant excitation system structure is arranged in digitized hydropower plant Digitallized system, the system is by three
Two net composition of layer, three layers include that station level (1), elementary layer (2) and process layer (3), two nets include station level (1) network and process
Layer (3) network, it is characterised in that the excitation system structure includes master system (4), generator-transformer protection device (5), LCU for generator set
(6), excitation unit (7), intelligent terminal I(8 are digitized), intelligent terminal II(9) and combining unit (10), master system
(4) setting is arranged in station level (1), LCU for generator set (6), digitlization excitation unit (7), generator-transformer protection device (5) in elementary layer
(2), intelligent terminal I(8), intelligent terminal II(9) and combining unit (10) be arranged in process layer (3)；Digitize excitation unit
(7) it is connect longitudinally upward by station level (1) network with master system (4), longitudinally passes downwardly through process layer (3) network and intelligence
Can terminal I(8), intelligent terminal II(9) and combining unit (10) connection, laterally with LCU for generator set (6), generator-transformer protection device
(5) it connects.
2. digitized hydropower plant excitation system structure as described in claim 1, it is characterised in that the digitlization excitation dress
It sets and is connect between (7) and master system (4), LCU for generator set (6), generator-transformer protection device (5) by optical fiber, with intelligent terminal I
(8), intelligent terminal II(9), between combining unit (10) by cable connection, connection protocol meets IEC61850 communication standard.
3. digitized hydropower plant excitation system structure as described in claim 1, it is characterised in that the digitlization excitation dress
Setting (7) includes that automatic voltage adjusts unit (11), power cell (12), demagnetization unit (13), and wherein automatic voltage adjusts single
First (11) include field regulator A(14) and field regulator B(15), field regulator A(14) by station level (1) network and
Master system (4) connection, is connect by process layer (3) network with intelligent terminal I(8)；Field regulator B(15) pass through station control
Layer (1) network is connect with master system (4), is connect by process layer (3) network with combining unit (10)；Demagnetization unit (13)
It is connect by process layer (3) network with intelligent terminal II(9).
4. digitized hydropower plant excitation system structure as described in claim 1, it is characterised in that the intelligent terminal I(8)
It being connect by cable with outlet breaker, combining unit (10) is connect with current transformer, voltage transformer respectively by cable,
Intelligent terminal II(9) it is connect by cable with main transformer high-pressure side breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820930147.4U CN208241410U (en) | 2018-06-15 | 2018-06-15 | Digitized hydropower plant excitation system structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820930147.4U CN208241410U (en) | 2018-06-15 | 2018-06-15 | Digitized hydropower plant excitation system structure |
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| Publication Number | Publication Date |
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| CN208241410U true CN208241410U (en) | 2018-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820930147.4U Active CN208241410U (en) | 2018-06-15 | 2018-06-15 | Digitized hydropower plant excitation system structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109839911A (en) * | 2019-01-03 | 2019-06-04 | 贵州乌江水电开发有限责任公司索风营发电厂 | A kind of Automation of Hydropower Station system LCU for generator set control system |
-
2018
- 2018-06-15 CN CN201820930147.4U patent/CN208241410U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109839911A (en) * | 2019-01-03 | 2019-06-04 | 贵州乌江水电开发有限责任公司索风营发电厂 | A kind of Automation of Hydropower Station system LCU for generator set control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210105 Address after: 650000 No. 1 Century City Road, Guandu District, Kunming City, Yunnan Province Patentee after: HUANENG LANCANG RIVER HYDROPOWER Co.,Ltd. Patentee after: POWERCHINA KUNMING ENGINEERING Corp.,Ltd. Patentee after: HUANENG GROUP TECHNOLOGY INNOVATION CENTER Co.,Ltd. Address before: 650000 No. 1 Century City Road, Guandu District, Kunming City, Yunnan Province Patentee before: HUANENG LANCANG RIVER HYDROPOWER Co.,Ltd. Patentee before: POWERCHINA KUNMING ENGINEERING Corp.,Ltd. |
|
| TR01 | Transfer of patent right |