阅读说明：本技术 一种微波光纤通信自动切换的海上风电场通信系统 (Offshore wind farm communication system capable of automatically switching microwave optical fiber communication ) 是由 谭任深 曾甫龙 谭江平 陈亮 汪少勇 徐龙博 何航 董英瑞 谭闻 张文鋆 夏莹 于 2020-05-09 设计创作，主要内容包括：本发明公开了一种微波光纤通信自动切换的海上风电场通信系统,包括中心站和至少一个与所述中心站对应的远端站；所述中心站设有中心服务器群,所述远端站设有远端服务器群；所述中心站及对应的远端站均设有微波通信组件、光传输设备以及具备切换功能的交换机；每一所述交换机分别连接本端的微波通信组件和光传输设备；所述中心站的交换机与所述中心服务器群连接,所述远端站的交换机与所述远端服务器群连接；所述中心站与所述远端站通过微波信号通信或光纤信号通信。本发明提供了一种微波光纤通信自动切换的海上风电场通信系统,能够实现光纤通信和微波通信系统的自动切换,实现通信的不间断,从而保证海上风电场的正常运行。(The invention discloses an offshore wind farm communication system with automatic microwave optical fiber communication switching function, which comprises a central station and at least one remote station corresponding to the central station; the central station is provided with a central server group, and the remote station is provided with a remote server group; the central station and the corresponding remote station are provided with a microwave communication assembly, optical transmission equipment and a switch with a switching function; each switch is respectively connected with the microwave communication assembly and the optical transmission equipment at the local end; the switch of the central station is connected with the central server group, and the switch of the remote station is connected with the remote server group; the central station and the remote stations communicate via microwave signals or fiber optic signals. The invention provides an offshore wind farm communication system capable of automatically switching microwave optical fiber communication, which can realize automatic switching of optical fiber communication and microwave communication systems and realize uninterrupted communication, thereby ensuring normal operation of an offshore wind farm.)

1. An offshore wind farm communication system with automatic switching of microwave optical fiber communication is characterized by comprising a central station and at least one remote station corresponding to the central station; the central station is provided with a central server group, and the remote station is provided with a remote server group;

the central station and the corresponding remote station are provided with a microwave communication assembly, optical transmission equipment and a switch with a communication channel switching function; each switch is respectively connected with the microwave communication assembly and the optical transmission equipment at the local end;

the switch of the central station is connected with the central server group, and the switch of the remote station is connected with the remote server group;

the central station and the remote station transmit microwave signals to each other through respective microwave communication components to establish a microwave communication link, or the optical transmission device of the central station and the optical transmission device of the remote station are connected through an optical fiber to establish an optical fiber communication link.

2. The offshore wind farm communication system with automatic switching of microwave fiber optic communication according to claim 1, wherein the main communication mode adopted by the switch is fiber optic communication and the backup communication mode is microwave communication.

3. The offshore wind farm communication system with automatic switching of microwave fiber optic communication according to claim 2, wherein the switch performs the following operations:

judging whether a communication signal connected with the switch is normal or not;

when the optical signal is detected to be normal, converting the data to be transmitted into the optical signal through optical transmission equipment, and transmitting the optical signal to optical transmission equipment at the other end through optical fibers;

when the optical signal is detected to be abnormal, the data to be transmitted is transmitted outwards in a microwave signal mode through the microwave communication assembly or external microwave signals are received through the microwave communication assembly and converted into received data.

4. The offshore wind farm communication system with automatic switching of microwave fiber optic communication according to claim 1, wherein the microwave communication assembly comprises an outdoor unit and an indoor unit connected;

the microwave communication assembly arranged at the central station also comprises a dual-polarized antenna; the dual-polarized antenna is connected with an outdoor unit arranged in a central station;

the microwave communication assembly arranged at the remote station also comprises a V-pole single-polarized antenna and an H-pole single-polarized antenna; the V-pole single-polarized antenna and the H-pole single-polarized antenna are both connected to an outdoor unit provided at a remote station.

5. The offshore wind farm communication system with automatic microwave fiber optic communication switching according to claim 1, wherein the central server farm comprises an offshore wind farm integrated automation system server; the remote server cluster comprises a booster station integrated automation system server.

6. The offshore wind farm communication system with automatic microwave fiber communication switching according to claim 1, wherein the central server group and the remote server group each comprise a server of a fan main control system and a server of a secondary control system.

7. The microwave fiber-optic communication automatic-switching offshore wind farm communication system according to claim 1, wherein the subsystems of the microwave fiber-optic communication automatic-switching offshore wind farm communication system comprise an electric energy collection system, a direct current and UPS system, a fault recording system, a wind power prediction system, a maritime communication system, a fire alarm system, an equipment state operation monitoring system, and the data transmission function of each subsystem is realized by a central server group and/or a remote server group.

8. An offshore wind farm communication system with automatic switching of microwave fiber optic communication as claimed in claim 1 wherein both the central station and the remote station are provided with backup batteries for powering the communication equipment.

Technical Field

The invention relates to the technical field of wireless communication, in particular to an offshore wind farm communication system capable of automatically switching microwave optical fiber communication.

Background

In recent years, wind power generation technology has been developed vigorously all over the world. The construction of wind power plants in China is also rapidly developed, and the wind power plants become the countries with the largest global wind power installed capacity at present. As the number of onshore wind farms and offshore wind farms increases, the demand for wireless communication systems for wind farms, in particular offshore wind farms, increases.

At present, the main communication mode of the offshore wind farm is optical fiber communication, and data of the wind turbine and the booster station are transmitted to a land centralized control center through optical fiber communication in a seabed composite submarine cable. The fan and the booster station are unattended, and operators carry out centralized monitoring in a land centralized control center.

However, the submarine composite submarine cables have continuous faults in recent years, some of the submarine composite submarine cables are damaged due to external forces such as ship breaking and dragging and ocean current scouring, and some of the submarine composite submarine cables are damaged due to construction problems such as poor grounding and poor fixing of the submarine cables, and the submarine composite cables have quality problems and cause huge loss to wind power plants. Since the communication data is transmitted through optical fibers, it is very dependent on submarine cables. When the submarine cable breaks down, the data of the offshore booster station and the wind turbine cannot be transmitted to the onshore centralized control center, and meanwhile, personnel on the sea cannot get in touch with the onshore through a normal communication mode.

Disclosure of Invention

Aiming at the technical problem, the invention provides an offshore wind farm communication system with automatic switching of microwave optical fiber communication, which can realize automatic switching of optical fiber communication and a microwave communication system, and can automatically switch to the microwave communication system when the optical fiber communication is damaged, thereby realizing uninterrupted communication and ensuring the normal operation of an offshore wind farm. The technical scheme is as follows:

the embodiment of the invention provides an offshore wind farm communication system capable of automatically switching microwave optical fiber communication, which is characterized by comprising a central station and at least one remote station corresponding to the central station; the central station is provided with a central server group, and the remote station is provided with a remote server group;

the central station and the corresponding remote station are provided with a microwave communication assembly, optical transmission equipment and a switch with a communication channel switching function; each switch is respectively connected with the microwave communication assembly and the optical transmission equipment at the local end;

the switch of the central station is connected with the central server group, and the switch of the remote station is connected with the remote server group;

the central station and the remote station transmit microwave signals to each other through respective microwave communication components to establish a microwave communication link, or the optical transmission device of the central station and the optical transmission device of the remote station are connected through an optical fiber to establish an optical fiber communication link.

Preferably, the main communication mode adopted by the switch is optical fiber communication, and the standby communication mode is microwave communication.

Preferably, the switch performs the following operations:

judging whether a communication signal connected with the switch is normal or not;

when the optical signal is detected to be normal, converting the data to be transmitted into the optical signal through optical transmission equipment, and transmitting the optical signal to optical transmission equipment at the other end through optical fibers;

when the optical signal is detected to be abnormal, the data to be transmitted is transmitted outwards in a microwave signal mode through the microwave communication assembly or external microwave signals are received through the microwave communication assembly and converted into received data.

Preferably, the microwave communication assembly comprises an outdoor unit and an indoor unit which are connected with each other;

the microwave communication assembly arranged at the central station also comprises a dual-polarized antenna; the dual-polarized antenna is connected with an outdoor unit arranged in a central station;

the microwave communication assembly arranged at the remote station also comprises a V-pole single-polarized antenna and an H-pole single-polarized antenna; the V-pole single-polarized antenna and the H-pole single-polarized antenna are both connected to an outdoor unit provided at a remote station.

Preferably, the central server group comprises an offshore wind farm integrated automation system server; the remote server cluster comprises a booster station integrated automation system server.

As a preferred scheme, the central server group and the remote server group both include servers of a fan master control system and an auxiliary control system.

Preferably, the subsystem of the offshore wind farm communication system with automatic microwave fiber communication switching comprises an electric energy acquisition system, a direct current and UPS system, a fault recording system, a wind power prediction system, a maritime communication system, a fire alarm system and an equipment state operation monitoring system, and the data transmission function of each subsystem is realized through a central server group and/or a remote server group.

Preferably, the central station and the remote stations are each provided with a back-up battery for powering the communication device.

Compared with the prior art, the embodiment of the invention has the following beneficial effects:

the invention provides an offshore wind farm communication system capable of automatically switching microwave optical fiber communication, which comprises a central station and at least one remote station corresponding to the central station; the central station is provided with a central server group, and the remote station is provided with a remote server group; the central station and the remote station realize microwave communication through a microwave communication assembly, or realize optical fiber communication through optical transmission equipment connected by optical fibers; and the data of the central server group or the far-end server group is transmitted to a corresponding end by selecting a microwave communication mode or an optical fiber communication mode through a switch. Therefore, even if the optical fiber communication is abnormal, the technical scheme of the invention switches the current communication mode into the microwave communication through the switch, so that the communication is uninterrupted, and the normal operation of the offshore wind farm is ensured.

Drawings

Fig. 1 is a structural diagram of an offshore wind farm communication system with microwave optical fiber communication automatic switching according to an embodiment of the present invention;

fig. 2 is a schematic connection diagram of microwave communication component modules of a land centralized control center as a central station of an offshore wind farm communication system with microwave optical fiber communication automatic switching in an embodiment of the present invention;

fig. 3 is a schematic connection diagram of microwave communication component modules of an offshore wind farm communication system with microwave optical fiber communication automatic switching as a remote station in an embodiment of the present invention;

fig. 4 is a schematic system operation diagram of an offshore wind farm communication system with automatic switching of microwave optical fiber communication in an embodiment of the present invention;

wherein, 11, the central station; 12. a remote station; 21. a central server cluster; 22. a remote server farm; 3. a microwave communication component; 4. an optical transmission device; 5. a switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be 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 of the 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, the present invention provides an exemplary embodiment of an offshore wind farm communication system with microwave fiber-optic communication automatic switching, which includes a central station 11 and at least one remote station 12 corresponding to the central station 11; the central station 11 is provided with a central server group 21, and the remote station 12 is provided with a remote server group 22;

the central station 11 and the corresponding remote station 12 are provided with a microwave communication component 3, an optical transmission device 4 and a switch 5 with a communication channel switching function; each switch 5 is respectively connected with the microwave communication component 3 and the optical transmission equipment 4 at the local end;

specifically, the optical transmission device 4 is an SDH optical transmission device.

The switch 5 of the central station 11 is connected with the central server cluster 21, and the switch 5 of the remote station 12 is connected with the remote server cluster 22;

it is understood that the central server and the remote server cluster 22 are both connected to the switch 5 by network cables.

The central station 11 and the remote station 12 transmit microwave signals to each other through respective microwave communication assemblies 3 to establish a microwave communication link, or the optical transmission device 4 of the central station 11 and the optical transmission device 4 of the remote station 12 are connected through optical fibers to establish an optical fiber communication link.

In this embodiment, the offshore wind farm communication system with microwave fiber-optic communication automatic switching generally comprises 1 central station 11 and 1 or more remote stations 12, where the central station 11 is a land centralized control center, and the remote stations 12 are offshore booster substations.

The central station 11 and the remote stations 12 are each provided with a back-up battery for powering the communication equipment.

The switch 5 adopts a main communication mode of optical fiber communication and a standby communication mode of microwave communication.

In this embodiment, when the submarine optical fiber transmission of the offshore wind farm fails, the microwave communication system can transmit the integrated automation system of the offshore booster station, and the transmitted data volume is more than 100M.

The switch 5 performs the following operations:

judging whether the communication signal connected with the switch 5 is normal;

when detecting that the optical signal is normal, converting the data to be transmitted into the optical signal through the optical transmission device 4, and transmitting the optical signal to the optical transmission device 4 at the other end through the optical fiber;

when the optical signal is detected to be abnormal, the data to be transmitted is transmitted outwards in the form of microwave signals through the microwave communication component 3 or external microwave signals are received through the microwave communication component 3 and converted into received data.

Referring to fig. 3 and 4, the microwave communication assembly 3 includes an outdoor unit and an indoor unit connected to each other;

the microwave communication assembly 3 arranged at the central station 11 further comprises a dual polarized antenna; the dual-polarized antenna is connected with an outdoor unit arranged at a central station 11;

the microwave communication assembly 3 disposed at the remote station 12 further includes a V-pole single-polarized antenna and an H-pole single-polarized antenna; the V-pole and H-pole monopole antennas are both connected to an outdoor unit located at the remote station 12.

It will be understood that the land based central control station 11 equipment should be configured: the device comprises a V/H dual-polarized antenna, an indoor access unit, an outdoor transmitting unit, a network switch, a direct-current power supply and the like. The offshore booster station remote station 12 equipment should be configured with: the system comprises a V/H single-polarized antenna, an indoor access unit, an outdoor transmitting unit, a network switch, a direct-current power supply and other equipment.

The outdoor units of the central station 11 and the remote station 12, the dual-polarized antenna, the V-pole single-polarized antenna, and the H-pole single-polarized antenna are all disposed outdoors.

The antenna of the land centralized control center station 11 should be arranged on the top layer of the building, the antenna should not be shielded towards the remote station 12, and the rest of the equipment should be arranged in the relay room of the land centralized control center. The antenna of the remote station 12 of the offshore booster station is arranged on the top layer of the offshore booster station, the antenna is not shielded towards the antenna of the central station 11, and other equipment is arranged in a relay chamber of the offshore booster station. The design of the antenna hanging height of the offshore booster station needs to take tidal height change into consideration.

The central server group 21 comprises an offshore wind farm integrated automation system server; the remote server farm 22 includes booster station integrated automation system servers.

The central server group 21 and the remote server group 22 both include servers of a fan master control system and an auxiliary control system.

The subsystems of the microwave optical fiber communication automatic switching offshore wind power plant communication system comprise an electric energy acquisition system, a direct current and UPS system, a fault wave recording system, a wind power prediction system, a maritime communication system, a fire alarm system and an equipment state operation monitoring system, and the communication functions of the subsystems are realized through a central server group 21 and/or a remote server group 22.

Referring to fig. 4, in the specific implementation of the present technical solution, an optical fiber communication mode is used as a main communication mode, and a microwave communication mode is used as a backup communication mode.

When the optical fiber is normal, the exchanger 5 of the offshore booster station collects data, transmits the data to the SDH equipment of the onshore centralized control center through the SDH equipment, and transmits the data of the relevant systems of the offshore booster station to onshore system servers of the integrated automation system, the fan main control system and the auxiliary control system, the electric energy collection system, the direct current and UPS system, the fault recording system, the wind power prediction system, the maritime communication system, the fire alarm system, the equipment state operation monitoring system and other system servers.

When an optical fiber fault or an optical transmission device fault occurs, when the core switch 5 of the offshore booster station detects that the optical fiber transmission mode is not feasible, the core switch can be automatically switched to a microwave communication mode, the microwave communication device is also connected to the switch 5 device, and when the optical fiber communication mode cannot transmit data, the data of system servers such as a comprehensive automatic system server, a fan main control system and auxiliary control system server, an electric energy acquisition system, a direct current and UPS system, a fault recording system, a wind power prediction system, a maritime communication system, a fire alarm system, a device state operation monitoring system and the like can be transmitted through the microwave communication device.

The invention provides an offshore wind farm communication system capable of automatically switching microwave optical fiber communication, which comprises a central station 11 and at least one remote station 12 corresponding to the central station 11; the central station 11 is provided with a central server group 21, and the remote station 12 is provided with a remote server group 22; the central station 11 and the remote station 12 realize microwave communication through the microwave communication component 3, or realize optical fiber communication through the optical transmission equipment 4 connected by optical fiber; the data of the central server group 21 or the remote server group 22 is transmitted to the corresponding end by selecting a microwave communication mode or an optical fiber communication mode through the switch 5. Therefore, even if the optical fiber communication is abnormal, the technical scheme of the invention switches the current communication mode into the microwave communication through the switch 5, thereby realizing the uninterrupted communication and ensuring the normal operation of the offshore wind farm.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.