CN113992400B - Cross-station communication system of public switch station of offshore wind farm - Google Patents
Cross-station communication system of public switch station of offshore wind farm Download PDFInfo
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- CN113992400B CN113992400B CN202111252575.9A CN202111252575A CN113992400B CN 113992400 B CN113992400 B CN 113992400B CN 202111252575 A CN202111252575 A CN 202111252575A CN 113992400 B CN113992400 B CN 113992400B
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- 238000004891 communication Methods 0.000 title claims abstract description 108
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 230000003993 interaction Effects 0.000 abstract description 13
- 238000002955 isolation Methods 0.000 abstract description 7
- 238000012216 screening Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000006855 networking Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design 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
- 238000005192 partition Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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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
-
- 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
-
- 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
A marine wind farm utility switchyard cross-site communication system comprising: the sea cable measurement and control devices are used for measuring and controlling all electric equipment in the marine booster station, feeding back signals of the protective devices and collecting, controlling and transmitting data of other equipment, and transmitting the control data to the remote communication devices through the network; the remote communication devices are used for transmitting data in the stations to the dispatching, are responsible for communication with the provincial dispatching master station, and receive the planning curve issued by the provincial dispatching master station and the intervention of the grid-connected automatic control system of the wind power plant; the telecontrol communication device is connected with the real-time dispatching switch; the real-time dispatching switch is connected with the longitudinal encryption device, the longitudinal encryption device is connected with the router, and the router is connected with the power dispatching access network; the system also comprises a plurality of firewalls, wherein each firewall is provided with more than four network ports; the telecontrol communication devices of the same group and the adjacent groups in the station are connected to the same firewall to form cross-station communication, so that screening and isolation of direct data interaction of different offshore wind farms are realized, and the data interaction requirement of a dispatching center and the five-prevention logic locking requirement 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 of a public switch station of an offshore wind farm.
Background
According to the power dispatching requirements, the direct data interaction behavior is forbidden between different wind farms, the wind farm data interaction is independently performed with local power grids and provincial power grids, and the data transmission is subjected to security protection strategies such as screening, firewall physical isolation, micro-longitudinal encryption and the like. Due to the characteristics of the electric system structure, the sea area and the region of the offshore wind farm, public land switch stations appear in different wind farms, unavoidable logic locking connection is realized between the offshore booster stations of different wind farms and the five-prevention of the knife switches at the two sides of the land switch stations, and data interaction behavior among different wind farms needs to be realized.
At present, each wind farm is configured and arranged with automatic equipment according to the design of each independent grid connection point, and data interaction is carried out between different wind farm data and a ground grid and a province grid on the basis of making a safety protection strategy. Each station can not directly perform data interaction, so that different wind power stations of the public land switching station can not realize the mutual locking function of a disconnecting switch, a ground knife and the like, and the requirements of five-prevention and safe production can not be met.
Disclosure of Invention
In order to overcome the problems of the prior art, the invention aims to provide a cross-station communication system of a public switch station of an offshore wind farm, and based on the characteristics of a public power station, the screening and isolation of direct data interaction of different offshore wind farms are realized by adding a network segment and physical isolation method, and the requirements of data interaction of a dispatching center and five-prevention logic locking in the station are met.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a marine wind farm utility switchyard cross-site communication system comprising:
The sea cable measurement and control devices are used for measuring and controlling all electric equipment in the marine booster station, feeding back signals of the protective devices and collecting, controlling and transmitting data of other equipment, and transmitting the control data to the remote communication devices through the network;
the remote communication devices are used for transmitting data in the stations to the dispatching, are responsible for communication with the provincial dispatching master station, and receive the planning curve issued by the provincial dispatching master station and the intervention of the grid-connected automatic control system of the wind power plant; the telecontrol communication device is connected with the real-time dispatching switch 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 the power dispatching access network;
Characterized by further comprising:
A plurality of firewalls, each firewall having more than four portals; the telecontrol communication devices in the same group and the adjacent group in the station are connected to the same firewall to form cross-station communication.
The telecontrol communication device comprises:
h1 telemechanical communication device A8, connect the first firewall 9 through the network cable;
The H1 telemechanical 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 a second firewall 12 through a network cable;
the H2 telecontrol communication device B11 is connected with the second firewall 12 through a network cable;
h3 telemechanical communication device a14, connect the second firewall 12 through the network cable;
h3 telemechanical communication device B13 is connected to second firewall 12 via a 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 remote communication device IP address and the master station IP end address and 2404TCP ports.
Compared with the prior art, the invention has the following beneficial effects:
1. by adding the firewall, the cross-station data communication is realized for different stations of the public power station.
2. The point location providing of sea and land isolation knife and ground knife logic locking is satisfied.
3. Meets the requirement of the five-prevention safety production of the power plant.
4. The cost is low, new equipment and large-scale communication background data are not needed, and the method is simple and effective.
5. Provides a basic condition for the live misoperation locking of the power system.
Drawings
Fig. 1 is a topology of a communication system according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a cross-site communication system for a public switchyard of an offshore wind farm includes:
the remote communication devices are used for transmitting data in the stations to the dispatching, are responsible for communication with the provincial dispatching master station, and receive the planning curve issued by the provincial dispatching master station and the intervention of the grid-connected automatic control system of the wind power plant;
A first firewall 9 having four or more ports;
A second firewall 12 having four or more ports;
h1 telemechanical communication device A8, connect the first firewall 9 through the network cable;
The H1 telemechanical 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 a second firewall 12 through a network cable;
the H2 telecontrol communication device B11 is connected with the second firewall 12 through a network cable;
h3 telemechanical communication device a14, connect the second firewall 12 through the network cable;
h3 telemechanical communication device B13, connect the second firewall 12 through the network cable;
the at least one H1 submarine cable measurement and control device 1 is used for measuring and controlling all electric equipment in the H1 submarine booster station, feeding back signals of a protection device and collecting, controlling and transmitting data of other equipment, and transmitting the control data to the H1 telemechanical communication device A8 and the H1 telemechanical communication device B7 through a network;
the three H2 sea cable measurement and control devices 2,3 and 4 are used for measuring and controlling all electric equipment in the H2 land switch station, feeding back signals of the protective device and collecting, controlling and transmitting data of other equipment, and transmitting the control data to the H2 telecontrol communication device A10 and the H2 telecontrol communication device B11 through a network;
The two H3 sea cable measurement and control devices 5 and 6 are used for measuring and controlling all electric equipment in the H3 sea booster station, feeding back signals of the protective device and collecting, controlling and transmitting data of other equipment, and transmitting the control data to the H3 remote communication device A14 and the H3 remote communication device B13 through a network;
The H1 telemechanical communication device A8, the H1 telemechanical communication device B7, the H2 telemechanical communication device a10, the H2 telemechanical communication device B11, the H3 telemechanical communication device a14 and the H3 telemechanical communication device B13 are connected with the real-time dispatching switch 15 after being screened by standard 104 dispatching protocol data; 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 the power dispatching access network.
The longitudinal encryption device 16 limits the remote communication device IP address and the master station IP end address and 2404TCP ports.
The working principle of the invention is as follows:
1. the communication data transmission of the system is transmitted to a remote communication device A, B (7/8// 10/11/13/14 shown in the figure) of each of the H1, H2 and H3 of each sea cable measurement and control device (1/2/3/4/5/6), and the data is transmitted to a real-time dispatching switch 15, then to a longitudinal encryption device 16, and is transmitted to a router 17 and a power dispatching access network 18 after encryption processing. The invention adds hardware firewall 1, hardware firewall 2, 8 network cables (shown by net 1, net 2, net 3, net 4, net 5, net 6, net 7, net 8), which can realize selective data exchange function between H1 telecontrol communication device A, B, H2 telecontrol communication device A, B, H3 telecontrol communication device A, B.
2. Each telecontrol communication device is used for transmitting data in a station to a dispatching station and is responsible for communicating with a provincial dispatching master station, receiving a planning curve issued by the provincial dispatching master station and intervening (such as remote switching, resetting and the like) on a grid-connected automatic control system of the wind power plant. The remote host communicates with the provincial master station using standard 104 schedule, port number 2404.
3. The remote communication host uploads the data to the power-saving company by accessing the biplane real-time dispatching switch 15.
4. The data of the remote communication host is to be transmitted through the longitudinal encryption device 16 of the safety protection equipment of the power monitoring system to ensure the safety of the data of the remote machine. The longitudinal encryption device 16 needs to strategically limit the intra-plant remote machine IP address and the primary station IP end address to 2404TCP ports.
5. Under normal conditions, all data interaction of different stations H1 offshore booster stations, H2 onshore switching stations and H3 offshore booster stations are interacted in a production control area where the stations are located, and a cross-station data interaction process does not exist.
Taking an H1 offshore booster station 1 as an example:
1. the data is transmitted to a remote communication device A8 and a remote communication device B7 from the #1 submarine cable measurement and control device through networking, and enters a real-time dispatching switch 15 after being screened by standard 104 dispatching protocol data;
2. the data enters the longitudinal encryption device 16 for data encryption after passing through the real-time dispatching switch 15, then is transmitted to the power-saving company router 17, and enters the power dispatching access network 18 after being shunted.
3. Respectively opening a network port at the H1 telecontrol communication device A8 and the H3 telecontrol communication device B11 for data transmission;
4.2 network ports are respectively provided for data transmission in the H2 telecontrol communication device A10 and the H2 telecontrol communication device B11.
5. The first firewall 9 and the second firewall 12 are newly added, and each firewall has at least 2 paths of data transmission functions (two-in and two-out).
6. The line network 1 is added to connect the H1 telecontrol communication device B7 and the hardware first firewall 9, and the line network 2 is added to connect the H1 telecontrol communication device A8 and the hardware first firewall 9; the line network 3 is added to connect the H2 telecontrol communication device B11 and the hardware first firewall 9, and the line network 4 is added to connect the H2 telecontrol communication device A10 and the hardware first firewall 9; the added line network 5 is connected with the H2 telecontrol communication device A10 and the hardware second firewall 12, and the added line network 6 is connected with the H2 telecontrol communication device B11 and the hardware second firewall 12; the added line network 7 connects the H3 telemechanical communication device a14 and the hardware second firewall 12, and the added line network 8 connects the H3 telemechanical communication device B13 and the hardware second firewall 12.
7. The cross-station data interaction communication is completed through the line network 1-8, the first firewall 9 and the second firewall 12 of the hardware and the remote communication device A, B of H1, H2 and H3. The remote communication devices perform point-to-point data screening according to the standard 104 scheduling protocol.
8. The first firewall 9 and the second firewall 12 of the physical partition hardware are added to realize the transverse isolation data interaction, so that when any station of H1, H2 and H3 is attacked by an external network, the other two stations are protected from attack.
9. The cross-station communication A and the cross-station communication B realize the independence and the interactivity of data among different stations of H1, H2 and H3.
Taking an H2 station as an example:
The sea cable measurement and control device of H2 station #1 transmits the separation and separation bit data to the telecontrol communication device A10 through the internal networking.
2. The telemechanical communication device a10 screens the data by adopting the dispatching protocol 104, a part of the data is transmitted to the implementation dispatching switch 15, the dispatching switch 15 transmits the data to the longitudinal encryption device 16, the longitudinal encryption strategically limits the IP address of the telemechanical data in the factory, the IP end address of the main station and 2404TCP port, and then the data is transmitted to the power-saving company router 17 and is shunted into the power dispatching access network 18.
3. And part of data is subjected to transverse data isolation through a network 4 and a first firewall 9 of hardware, enters an H1 station telemechanical communication device A8 through the network 2, and is transmitted to an H1 sea cable measurement and control device 1 after being screened by a telemechanical communication device A8, and the H1 measurement and control device 1 five-prevention logic locks the local side cutter on-off through the H2 station separation and on-off information, so that the live misoperation damage equipment and personal safety accidents of a power generation station power system are ensured.
The foregoing disclosure is merely illustrative of some embodiments of the invention and various modifications and variations may be made in the embodiments by those skilled in the art without departing from the spirit and scope of the invention, but the embodiments are not limited thereto and any changes that may be made by those skilled in the art should fall within the scope of the invention.
Claims (4)
1. A marine wind farm utility switchyard cross-site communication system comprising:
The sea cable measurement and control devices are used for measuring and controlling all electric equipment in the marine booster station, feeding back signals of the protective devices and collecting, controlling and transmitting data of other equipment, and transmitting the control data to the remote communication devices through the network;
The remote communication devices are used for transmitting the data in the public switch station to the dispatching, are responsible for communication with the provincial dispatching master station, and receive the planning curve issued by the provincial dispatching master station and the intervention of the wind power plant grid-connected automatic control system; the telecontrol communication device is connected with a real-time dispatching switch (15); the real-time dispatching switch (15) is connected with the longitudinal encryption device (16), the longitudinal encryption device (16) is connected with the router (17), and the router (17) is connected with the power dispatching access network (18);
Characterized by further comprising:
a plurality of firewalls, each firewall having more than four portals; the remote communication devices in the same group and adjacent groups in the public switch station are connected to the same firewall to form cross-station communication.
2. The system of claim 1, wherein the telemechanical communication device comprises:
the H1 telemechanical communication device A (8) is connected with the first firewall (9) through a network cable;
The H1 telemechanical communication device B (7) is connected with the first firewall (9) through a network cable;
The H2 telecontrol communication device A (10) is connected with the first firewall (9) through a network cable;
the H2 telecontrol communication device B (11) is connected with the first firewall (9) through a network cable;
The H2 telecontrol communication device A (10) is connected with a second firewall (12) through a network cable;
The H2 telecontrol communication device B (11) is connected with a second firewall (12) through a network cable;
h3 telemechanical communication device a (14) connected to the second firewall (12) via a network cable;
h3 telemechanical communication device B (13) is connected with the second firewall (12) through a network cable.
3. The cross-site communication system of the public switch station of the offshore wind farm according to claim 1, wherein the plurality of telecontrol communication devices are connected with the real-time dispatching switch (15) after being screened by standard 104 dispatching protocol data.
4. A system for cross-site communication of utility switchyard in offshore wind farm according to claim 1, wherein said longitudinal encryption means (16) limits said telemechanical communication device IP address and master station IP end address and 2404TCP ports.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111252575.9A CN113992400B (en) | 2021-10-27 | 2021-10-27 | Cross-station communication system of public switch station of offshore wind farm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111252575.9A CN113992400B (en) | 2021-10-27 | 2021-10-27 | Cross-station communication system of public switch station of offshore wind farm |
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| CN113992400A CN113992400A (en) | 2022-01-28 |
| CN113992400B true CN113992400B (en) | 2024-04-30 |
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| 兆瓦(MW)级海岛微电网通信网络架构研究及工程应用;田盈;孟赛;邹欣洁;吕振宁;王卫星;;电力系统保护与控制;20151001;第43卷(第19期);全文 * |
| 智慧海上风电场的定义、架构体系和建设路径;陈亮, 阳熹, 杨源;南方能源建设;20200925;第7卷(第03期);第62-69页 * |
| 智能"五防"在乌兰察布电网的应用;胡怀伟;农村电气化;20170612;第04卷(第06期);第40-41页 * |
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| 风电场电力监测系统安全防护技术的研究;李方见;硕士电子期刊2021年第07期;20210715;正文第10-56页 * |
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