CN113992400A - Public switch station cross-station communication system of offshore wind farm - Google Patents
Public switch station cross-station communication system of offshore wind farm Download PDFInfo
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- CN113992400A CN113992400A CN202111252575.9A CN202111252575A CN113992400A CN 113992400 A CN113992400 A CN 113992400A CN 202111252575 A CN202111252575 A CN 202111252575A CN 113992400 A CN113992400 A CN 113992400A
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- 238000004891 communication Methods 0.000 title claims abstract description 105
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 230000003993 interaction Effects 0.000 abstract description 13
- 238000002955 isolation Methods 0.000 abstract description 7
- 238000012216 screening Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/20—Network architectures or network communication protocols for network security for managing network security; network security policies in general
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00004—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the power network being locally controlled
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
- H04L63/0209—Architectural arrangements, e.g. perimeter networks or demilitarized zones
- H04L63/0218—Distributed architectures, e.g. distributed firewalls
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
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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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security
Abstract
An offshore wind farm utility switching station cross-station communication system, comprising: the plurality of submarine cable measurement and control devices are used for measurement and control of each electrical device in the offshore booster station, signal feedback of the protection device and collection, control and transmission of other device data, and the control data is transmitted to the respective telecontrol communication device through a network; the telecontrol communication devices are used for transmitting data in the station to a dispatching station, are responsible for communicating with the provincial dispatching master station, and receive a plan curve sent by the provincial dispatching master station and intervene in a grid-connected automatic control system of the wind power plant; the telecontrol communication device is connected with the real-time dispatching exchanger; the real-time dispatching switch is connected with a longitudinal encryption device, the longitudinal encryption device is connected with a router, and the router is connected with a power dispatching access network; the firewall system also comprises a plurality of firewalls, and each firewall is provided with more than four network ports; the telecontrol communication devices of the same group and the adjacent group in the station are connected to the same firewall to form cross-station communication, so that the direct data interaction screening and isolation of different offshore wind farms are realized, and the data interaction requirements of a provincial dispatching center and the logic locking requirements of five preventions in the station are met.
Description
Technical Field
The invention relates to the technical field of offshore power generation communication, in particular to a cross-station communication system and method for an offshore wind farm public switch station.
Background
According to the power dispatching requirement, direct data interaction behaviors among different wind power plants are forbidden, the wind power plant data interaction is independently conducted with a local power grid and a provincial power grid, and data transmission is conducted through safety protection strategies such as screening, firewall physical isolation and micro-longitudinal encryption. Due to the characteristics of the structure, sea area and region of an electric system of an offshore wind farm, the situation that different wind farms share a public land switch station occurs, inevitable logic locking connection occurs between the offshore booster station of different wind farms and knife switches on two sides of the land switch station, and the like, and data interaction behaviors among different wind farms need to be realized.
At present, each wind power plant is designed and configured with dispatching automation equipment according to independent grid-connected points, and data interaction is carried out on different wind power plant data with a ground grid and a provincial grid on the basis of well-done safety protection strategies. Data interaction can not be directly carried out in each station, so that the mutual locking function of an isolating switch, a grounding switch and the like can not be realized in different wind power plants of a public land switch station, and the requirements of five-prevention and safe production can not be met.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention aims to provide a cross-station communication system for a public switch station of an offshore wind farm, which is based on the characteristics of a public power station, realizes the screening and isolation of direct data interaction of different offshore wind farms by adding network segments and physical isolation methods, and meets the data interaction requirements of a provincial dispatching center and the requirements of five-prevention logic locking in the station.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an offshore wind farm utility switching station cross-station communication system, comprising:
the plurality of submarine cable measurement and control devices are used for measurement and control of each electrical device in the offshore booster station, signal feedback of the protection device and collection, control and transmission of other device data, and the control data is transmitted to the respective telecontrol communication device through a network;
the telecontrol communication devices are used for transmitting data in the station to a dispatching station, are responsible for communicating with the provincial dispatching master station, and receive a plan curve sent by the provincial dispatching master station and intervene in a grid-connected automatic control system of the wind power plant; the telecontrol communication device is connected with the real-time dispatching exchanger 15; the real-time dispatching switch 15 is connected with a longitudinal encryption device 16, the longitudinal encryption device 16 is connected with a router 17, and the router 17 is connected with a power dispatching access network;
it is characterized by also comprising:
each firewall is provided with more than four network ports; the telecontrol communication devices of the same group and the adjacent group in the station are connected to the same firewall to form cross-station communication.
The telemechanical communication device comprises:
the H1 telecontrol communication device A8 is connected with the first firewall 9 through a network cable;
the H1 telecontrol communication device B7 is connected with the first firewall 9 through a network cable;
the H2 telecontrol communication device A10 is connected with the first firewall 9 through a network cable;
the H2 telecontrol communication device B11 is connected with the first firewall 9 through a network cable;
the H2 telecontrol communication device A10 is connected with the second firewall 12 through a network cable;
the H2 telecontrol communication device B11 is connected with the second firewall 12 through a network cable;
the H3 telecontrol communication device A14 is connected with the second firewall 12 through a network cable;
h3 telecontrol communication device B13, connecting with the second firewall 12 through network cable.
Each telecontrol communication device is connected with the real-time dispatching switch 15 after being screened by standard 104 dispatching protocol data.
The longitudinal encryption device 16 limits the IP address of the telecontrol communication device, the IP end address of the main station and the 2404TCP port.
Compared with the prior art, the invention has the following beneficial effects:
1. by adding the firewall, different stations of the public power station realize cross-station data communication.
2. The point location of the sea-land isolation knife and the ground knife is provided.
3. The requirement of the five-prevention safety production of the power plant is met.
4. The cost is low, new equipment and large-scale communication background data are not needed, and the method is simple and effective.
5. The method provides a basic condition for the electrified misoperation locking of the power system.
Drawings
FIG. 1 is a communication system topology diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a cross-station communication system for public switch stations of offshore wind farms includes:
the telecontrol communication devices are used for transmitting data in the station to a dispatching station, are responsible for communicating with the provincial dispatching master station, and receive a plan curve sent by the provincial dispatching master station and intervene in a grid-connected automatic control system of the wind power plant;
a first firewall 9 having four or more network ports;
a second firewall 12 having four or more network ports;
the H1 telecontrol communication device A8 is connected with the first firewall 9 through a network cable;
the H1 telecontrol communication device B7 is connected with the first firewall 9 through a network cable;
the H2 telecontrol communication device A10 is connected with the first firewall 9 through a network cable;
the H2 telecontrol communication device B11 is connected with the first firewall 9 through a network cable;
the H2 telecontrol communication device A10 is connected with the second firewall 12 through a network cable;
the H2 telecontrol communication device B11 is connected with the second firewall 12 through a network cable;
the H3 telecontrol communication device A14 is connected with the second firewall 12 through a network cable;
the H3 telecontrol communication device B13 is connected with the second firewall 12 through a network cable;
the H1 sea cable measurement and control device 1 is used for measurement and control of each electrical device in the H1 offshore booster station, signal feedback of a protection device and collection, control and transmission of other device data, and transmits the control data to the H1 telecontrol communication device A8 and the H1 telecontrol communication device B7 through a network;
the three H2 submarine cable measurement and control devices 2, 3 and 4 are used for measurement and control of each electrical device in the H2 offshore switching station, signal feedback of a protection device and collection, control and transmission of other device data, and the control data are transmitted to the H2 telecontrol communication device A10 and the H2 telecontrol communication device B11 through a network;
the two H3 submarine cable measurement and control devices 5 and 6 are used for measurement and control of each electrical device in the H3 offshore booster station, signal feedback of a protection device and collection, control and transmission of other device data, and the control data are transmitted to the H3 telecontrol communication device A14 and the H3 telecontrol communication device B13 through a network;
the H1 telecontrol communication device A8, the H1 telecontrol communication device B7, the H2 telecontrol communication device A10, the H2 telecontrol communication device B11, the H3 telecontrol communication device A14 and the H3 telecontrol communication device B13 are connected with the real-time dispatching exchanger 15 after being screened by standard 104 dispatching protocol data; the real-time dispatching switch 15 is connected with a vertical encryption device 16, the vertical encryption device 16 is connected with a router 17, and the router 17 is connected with a power dispatching access network.
The longitudinal encryption device 16 limits the IP address of the telecontrol communication device, the IP end address of the main station and the 2404TCP port.
The working principle of the invention is as follows:
1. the communication data transmission of the system is transmitted to a telecontrol communication device A, B (7/8/9/10/11/12/13/14 shown in the figure) of each of H1, H2 and H3 through each submarine cable measuring and controlling device (1/2/3/4/5/6), the data are transmitted to a real-time dispatching switch 15 after being processed and screened respectively, then transmitted to a longitudinal encryption device 16, and transmitted to a router 17 and a power dispatching access network 18 after being encrypted. By adding the hardware firewall 1, the hardware firewall 2 and 8 network cables (shown by the network 1, the network 2, the network 3, the network 4, the network 5, the network 6, the network 7 and the network 8 in the figure), the invention can realize the selective data exchange function among the H1 telecontrol communication device A, B, the H2 telecontrol communication device A, B and the H3 telecontrol communication device A, B.
2. Each telecontrol communication device is used for transmitting data in the station to a dispatching station, is responsible for communicating with the provincial dispatching master station, and receives a plan curve issued by the provincial dispatching master station and intervenes (such as remote switching, returning and the like) on the wind power plant grid-connected automatic control system. The telecontrol host computer communicates with the provincial dispatching master station by adopting a standard 104 dispatching protocol and a port number 2404.
3. The telecontrol communication host uploads the data to the provincial electric power company by accessing the biplane real-time dispatching switch 15.
4. The telemechanical communication host data can be transmitted in a way of ensuring the safety and encryption of the telemechanical data through the longitudinal encryption device 16 of the safety protection equipment of the power monitoring system. The longitudinal encryption device 16 is required to limit the IP address of the remote control machine in the factory, the IP end address of the main station and the 2404TCP port in a strategic manner.
5. Under normal conditions, all data interaction of different stations H1 offshore booster stations, H2 onshore switchyard and H3 offshore booster stations is carried out in the production control large area where the stations are located, and a cross-station data interaction process does not exist.
Taking H1 offshore booster station 1 as an example:
1. data are transmitted to a telecontrol communication device A8 and a telecontrol communication device B7 from a #1 submarine cable measurement and control device through networking, and enter a real-time dispatching switch 15 after being screened by standard 104 dispatching protocol data;
2. the data enters a longitudinal encryption device 16 for data encryption after passing through a real-time dispatching switch 15, then is transmitted to a power-saving company router 17, and enters a power dispatching access network 18 after being shunted.
3. Respectively opening a network port for data transmission in an H1 telecontrol communication device A8 and an H3 telecontrol communication device B11;
4. 2 network ports are provided for data transmission in H2 telecontrol communication device a10 and H2 telecontrol communication device B11, respectively.
5. And a first hardware firewall 9 and a second hardware firewall 12 are added, and each firewall has at least 2-path data transmission functions (two-in and two-out).
6. Adding a circuit network 1 connected with an H1 telecontrol communication device B7 and a hardware first firewall 9, and adding a circuit network 2 connected with an H1 telecontrol communication device A8 and a hardware first firewall 9; a circuit network 3 is additionally connected with an H2 telecontrol communication device B11 and a hardware first firewall 9, and a circuit network 4 is additionally connected with an H2 telecontrol communication device A10 and a hardware first firewall 9; a circuit network 5 is additionally connected with an H2 telecontrol communication device A10 and a hardware second firewall 12, and a circuit network 6 is additionally connected with an H2 telecontrol communication device B11 and the hardware second firewall 12; a circuit network 7 is additionally connected with an H3 telecontrol communication device A14 and a hardware second firewall 12, and a circuit network 8 is additionally connected with an H3 telecontrol communication device B14 and a hardware second firewall 12.
7. The telecontrol communication device A, B of H1, H2 and H3 is communicated with the first firewall 9 and the second firewall 12 of hardware through the wired network 1-8 to finish cross-site data interaction communication. The telecontrol communication devices are screened point-to-point data through a standard 104 scheduling protocol.
8. The first firewall 9 and the second firewall 125 are added with physical partition hardware to realize transverse data isolation interaction, so that when any station of H1, H2 and H3 is attacked by an external network, other two stations are protected from being attacked.
9. The cross-station communication A and the cross-station communication B realize the independence and the interactivity of data among different stations H1, H2 and H3.
Taking H2 site as an example:
1, H2 station #1 submarine cable measurement and control device separates the transmission of sword deciliter position data to telemechanical communication device A10 through internal network deployment.
2. The telecontrol communication device A10 screens data by adopting a scheduling protocol 104, a part of the data is transmitted to the implementation scheduling switch 15, the scheduling switch 15 transmits the data to the longitudinal encryption device 16, the longitudinal encryption strategically limits the IP address of the telecontrol data in the factory, the IP end address of the main station and the 2404TCP port, and then transmits the data to the power-saving company router 17, and the data enters the power scheduling access network 18 through shunting.
3. A part of data passes through the net 4, carry out horizontal data isolation through the first firewall 9 of hardware, get into H1 station telemechanical communication device A8 through net 2, telemechanical communication device A8 separates that the sword divides the deciliter position data screening back with data transmission to H1 sea cable measurement and control device 1, H1 measurement and control device 1 five-prevention logic separates the sword deciliter position information through this H2 station and closes the shutting to this side ground sword and locks, thereby it damages equipment and personal safety accident to have guaranteed that power plant electric power system appears electrified maloperation.
Although the embodiments of the present invention have been disclosed in the foregoing for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying drawings.
Claims (4)
1. An offshore wind farm utility switching station cross-station communication system, comprising:
the plurality of submarine cable measurement and control devices are used for measurement and control of each electrical device in the offshore booster station, signal feedback of the protection device and collection, control and transmission of other device data, and the control data is transmitted to the respective telecontrol communication device through a network;
the telecontrol communication devices are used for transmitting data in the station to a dispatching station, are responsible for communicating with the provincial dispatching master station, and receive a plan curve sent by the provincial dispatching master station and intervene in a grid-connected automatic control system of the wind power plant; the telecontrol communication device is connected with a real-time dispatching exchanger (15); the real-time dispatching switch (15) is connected with a longitudinal encryption device (16), the longitudinal encryption device (16) is connected with a router (17), and the router (17) is connected with a power dispatching access network (18);
it is characterized by also comprising:
each firewall is provided with more than four network ports; the telecontrol communication devices of the same group and the adjacent group in the station are connected to the same firewall to form cross-station communication.
2. The offshore wind farm utility switching station cross-station communication system according to claim 1, wherein the telecontrol communication device comprises:
the H1 telecontrol communication device A (8) is connected with the first firewall (9) through a network cable;
the H1 telecontrol communication device B (7) is connected with the first firewall (9) through a network cable;
h2 telecontrol communication device A (10), which is connected with the first firewall (9) through network cable;
the H2 telecontrol communication device B (11) is connected with the first firewall (9) through a network cable;
h2 telecontrol communication device A (10), connecting with the second firewall (12) through network cable;
the H2 telecontrol communication device B (11) is connected with the second firewall (12) through a network cable;
h3 telecontrol communication device A (14) connected with the second firewall (12) through network cable;
h3 telecontrol communication device B (13), which is connected with the second firewall (12) through network cable.
3. The offshore wind farm utility switching station cross-station communication system according to claim 1, wherein each of the plurality of telecontrol communication devices is connected to the real-time dispatching switch (15) after being screened by standard 104 dispatching protocol data.
4. The offshore wind farm utility switching station cross-site communication system according to claim 1, wherein the longitudinal encryption device (16) restricts the IP address of the telecontrol communication device, the IP end address of the main station and the 2404TCP port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111252575.9A CN113992400B (en) | 2021-10-27 | Cross-station communication system of public switch station of offshore wind farm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111252575.9A CN113992400B (en) | 2021-10-27 | Cross-station communication system of public switch station of offshore wind farm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113992400A true CN113992400A (en) | 2022-01-28 |
| CN113992400B CN113992400B (en) | 2024-04-30 |
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