CN210690882U - Novel electric trigger thyristor converter valve optical signal transmission system in converter station - Google Patents
Novel electric trigger thyristor converter valve optical signal transmission system in converter station Download PDFInfo
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- CN210690882U CN210690882U CN201921768352.6U CN201921768352U CN210690882U CN 210690882 U CN210690882 U CN 210690882U CN 201921768352 U CN201921768352 U CN 201921768352U CN 210690882 U CN210690882 U CN 210690882U
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Abstract
The utility model relates to a novel electricity triggers thyristor converter valve light signal transmission system among converter station. The transmission system comprises a valve control device and a thyristor control device; the valve control device comprises at least one valve control board card, wherein a packaging light source and a packaging optical receiver are integrated on the valve control board card, and the packaging mode of the packaging light source is the same as that of the packaging optical receiver; the thyristor control device comprises a thyristor control board used for triggering the thyristor to be turned on or turned off; the packaged light source is integrally packaged or independently packaged; the integrally packaged light source is provided with a tail fiber or a coupling optical fiber, and the independently packaged light source is provided with a connecting seat; and the driving power of the integrally packaged or independently packaged light source is less than 20 mW. The driving power required by the encapsulated light source is small (less than 20mW), and the problem that the temperature of a transmission system device and a cabinet body is increased due to the fact that the valve control board card generates heat due to the fact that the driving power required by the light source is large can be solved.
Description
Technical Field
The utility model relates to a photoelectric transmission technical field especially relates to a novel electricity triggers thyristor converter valve light signal transmission system among converter station
Background
The high-voltage direct-current transmission is widely applied in China, and the stability and the reliability of the converter station serving as core equipment of the high-voltage direct-current transmission play an important role in the direct-current transmission. At present, in a converter station of a direct current transmission network in China, various high-power light sources and optical fibers with large core diameters are used for ensuring the reliable transmission of various optical pulse signals of a transmission system. Several to more than ten light sources are generally installed on a control board card of a VBE (valve base electronic equipment), and several control board cards are installed in a transmission system device. The light source is welded on the control board card, the tube body of the light source is packaged on the special baffle plate strip of the valve control device, the light source is coupled with the optical fiber through a special optical fiber contact pin, and various optical fibers with large core diameters are selected for improving the coupling efficiency.
However, the coupling method of the large-core-diameter optical fiber with the light source and the light receiver has low coupling efficiency and poor repeatability and consistency, and the large-core-diameter optical fiber has great loss under various working wavelengths, so that the optical power of the light source needs to be improved, the power of a light source driving power supply is increased accordingly, and the control board card of the VBE heats more seriously.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need to provide a new type of electrically triggered thyristor converter valve optical signal transmission system in a converter station.
A novel electric trigger thyristor converter valve optical signal transmission system in a converter station comprises a valve control device and a thyristor control device;
the valve control device comprises at least one valve control board card, wherein a packaging light source and a packaging optical receiver are integrated on the valve control board card, and the packaging mode of the packaging light source is the same as that of the packaging optical receiver; the thyristor control device comprises a thyristor control board used for triggering the thyristor to be turned on or turned off;
the valve control board is connected with the trigger channel on the thyristor control board through multimode or single-mode fiber communication; the valve control board card is provided with a packaging optical receiver and a return inspection channel on the thyristor control board, and the packaging optical receiver is connected with the return inspection channel on the thyristor control board through a multimode or single-mode optical fiber;
the packaged light source is integrally packaged or independently packaged; the integrally packaged light source is provided with a tail fiber or a coupling optical fiber, and the independently packaged light source is provided with a connecting seat; wherein the driving power of the integrally packaged or independently packaged light source is less than 20 mW.
In one embodiment, the integrally packaged light source is an integrated structure formed by packaging a light source chip and an optical coupling system with a coupling optical fiber.
In one embodiment, the optical coupling system with the coupling optical fiber comprises a lens, an optical isolator, a core insert and a coupling optical fiber;
a lens, an optical isolator, a ferrule and a coupling optical fiber are sequentially arranged on a laser light path radiated by the light source chip; one end of the ferrule is coupled with the coupling optical fiber, the optical isolator is arranged at the other end of the ferrule, and the lens is arranged between the optical isolator and the light source chip.
In one embodiment, the connection between the packaged light source and the multimode or single-mode optical fiber is formed by fusion splicing the coupling optical fiber and the multimode or single-mode optical fiber.
In one embodiment, the fusion splice of the coupling fiber and the multimode or single-mode fiber is encapsulated with a fiber splice closure.
In one embodiment, the integrally packaged light source is an integral structure formed by packaging a light source chip and an optical coupling system with a tail fiber.
In one embodiment, the pigtailed optical coupling system comprises a standard fiber optic connector including any one of a FC standard fiber optic connector, a LC standard fiber optic connector, or a ST standard fiber optic connector.
In one embodiment, the independently packaged light source is a packaged light source with a connecting seat formed by integrating a light source chip on the connecting seat.
In one embodiment, the connection between the packaged light source and the multimode or single-mode optical fiber is formed by independent packaging, and the multimode or single-mode optical fiber integrated with a standard optical fiber connector is connected with the connecting seat of the packaged light source.
In one embodiment, the light source chip includes any one of a vertical cavity surface emitting light source chip, a semiconductor light source chip, or a light emitting diode.
In one embodiment, the multimode optical fiber in the multimode or single mode optical fiber comprises a 50 μm/125 multimode optical fiber or a 62.5 μm/125 multimode optical fiber;
the single mode fiber comprises a 9 μm/125 single mode fiber.
In one embodiment, the valve control board card is provided with a plurality of encapsulated light sources and a plurality of encapsulated light receivers, and a plurality of multimode/single-mode optical fibers connected with the encapsulated light sources are armored into at least one first optical cable; and a plurality of multimode/single-mode optical fibers connected with the packaged optical receivers are armored into at least one second optical cable.
In one embodiment, each of the first optical cables is combined with each of the second optical cables to form a main optical cable.
According to the optical signal transmission system, the packaging mode of the packaged light source is packaged in an integrated packaging or independent packaging mode, and the driving power of the packaged light source after the integrated packaging or independent packaging is less than 20mW, so that the problem that the temperature of the transmission system device and the cabinet body is increased due to the fact that the valve control board card generates heat due to the fact that the driving power required by the light source is large can be solved. In addition, after the optical pulse signal is packaged into a whole, the loss of light rays under various wavelengths can be reduced, and the coupling efficiency is improved, so that the stability, consistency and reliability of optical pulse signal transmission can be guaranteed.
Drawings
FIG. 1 is a block diagram of an optical signal transmission system according to an embodiment;
fig. 2 is a schematic structural diagram of an embodiment of an optical signal transmission system using an integrally packaged light source;
FIG. 3 is a schematic structural diagram of an optical signal transmission system using an independently packaged light source according to another embodiment;
fig. 4 is a schematic structural diagram of an integrally packaged light source in an embodiment.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Please refer to fig. 1, which is a block diagram of an optical signal transmission system according to an embodiment of the present disclosure. The transmission system is mainly used for realizing the triggering return inspection of the thyristor, the thyristor can be divided into an electric triggering thyristor and a light triggering thyristor according to a triggering mode, and the thyristor used in the application can be an electric triggering thyristor. The transmission system may include a valve control device (not shown in fig. 1) and a thyristor control device (not shown in fig. 1); the valve Control device comprises at least one valve Control board card 10, wherein the valve Control board card 10 is also called a valve Control unit vcu (valve Control unit), is mainly integrated on the valve Control device and is used for outputting an optical pulse signal for triggering the thyristor to be turned on or turned off or checked back, the valve Control device is also called a valve base electronic equipment VBE, and a plurality of Control board cards 10 are usually integrated on one valve Control device; the valve control board card 10 is integrated with an encapsulation light source 110 and an encapsulation light receiver 120; the thyristor Control device 20 includes a thyristor Control board 210 for triggering the thyristor (not shown) to turn on or off, the thyristor Control board 210 is also called a thyristor circuit board te (thyristor Electronic board), the thyristor Control device 20 is also called a thyristor Control unit tcu (thyristor Control unit) or a valve tower, and usually, several thyristor Control boards 210 are also integrated on the thyristor Control device 20.
With continued reference to fig. 1, the encapsulated light source 110 on the valve-controlled board 10 is communicatively connected to the trigger channel (not shown in fig. 1) on the thyristor control board 210 through a multimode or single-mode optical fiber S1; the package optical receiver 120 on the valve control board 10 is connected to a review channel (not shown in fig. 1) on the thyristor control board 210 through a multimode or single-mode optical fiber S2, the trigger channel is configured to receive a trigger optical pulse signal sent by the valve control board 110 through an optical fiber S1, and the review channel is configured to transmit a review optical pulse signal sent by the thyristor control board 210 to the package optical receiver 120 on the valve control board 10 through an optical fiber S2. Further, the multimode or single mode fiber S1 and the multimode or single mode fiber S2 may be the same, and illustratively, the multimode fibers in the multimode or single mode fiber S1 and the multimode or single mode fiber S2 may each include 50 μm/125, 62.5 μm/125 multimode fibers, and the single mode fibers may include 9 μm/125 single mode fibers. It can be seen that the core diameters of the transmission fibers used in the present application are all very small, so that the transmission loss of the optical signals of the present application can be reduced. In addition, the transmission optical fiber with the smaller core diameter is selected, so that the cost of the optical fiber transmission device can be effectively reduced.
On the other hand, the packaged light source 110 of the present application is packaged integrally or independently; the integrally packaged light source 110 has a pigtail (not shown in fig. 1) or a coupling fiber (not shown in fig. 1), which can be understood as a bare fiber, and the separately packaged light source 110 has a connecting socket; wherein, the driving power of the integrally packaged or independently packaged light source 110 is less than 20 mW. The packaging mode of the packaged optical receiver 120 is an integrated packaging mode or an independent packaging mode; the integrally packaged optical receiver 120 has a pigtail or a coupling fiber, and the independently packaged optical receiver 120 has a connection socket. The integrally packaged light source is provided with a tail fiber or a coupling optical fiber, and the independently packaged light source is provided with a connecting seat; on one hand, the problem that the existing light source and transmission optical fiber are inconvenient to install, debug and maintain due to the fact that a special contact pin is adopted for coupling can be avoided, in addition, after the light source and the transmission optical fiber are packaged into a whole, the loss of light under various wavelengths can be reduced, the coupling efficiency is improved, and therefore the stability, the consistency and the reliability of optical pulse signal transmission can be guaranteed.
In one embodiment, the valve card 10 of the present application may be provided with a plurality of encapsulated light sources 110 and a plurality of encapsulated light receivers 120, the encapsulated light sources 110 and the encapsulated light receivers 120 may be encapsulated in an integrated manner or in an independent manner, and the encapsulated light sources 110 and the encapsulated light receivers 120 on the same valve card 10 are encapsulated in the same manner. Optionally, the number of the packaged light sources 110 is the same as the number of the packaged light receivers 120, and accordingly, the number of the multimode/single-mode optical fibers connected to the packaged light sources 110 and the packaged light receivers 120 is also several, and in addition, the number of the thyristor control boards 210 is also several, and preferably, the number of the thyristor control boards 210 is the same as the number of the packaged light sources 110; in order to facilitate management and improve reliability of the multi-mode/single-mode optical fibers, the present embodiment armours a plurality of multi-mode/single-mode optical fibers S1 connected to each of the packaged light sources 110 into at least one first optical cable (not shown); a plurality of multimode/single mode optical fibers S2 connected to each of the packaged optical receivers 120 are armored into at least one second optical cable (not shown); siliceous factice can be filled between the armored optical fiber and the sheath. Specifically, the number of optical fibers in the first optical cable and the second optical cable may be the same, and optical fibers used as an arrester and a water leakage monitoring device may be further integrated in the first optical cable and the second optical cable; in addition, in the case of the armoring, the armoring may be performed using a metal material, or the armoring may be performed using a non-metal material, and in the present application, the armoring is preferably performed using a non-metal material. It will be appreciated that the number of first and second cables can be selected and adjusted according to the actual operating requirements. Further, each of the first optical cables and each of the second optical cables are combined into a main optical cable (not shown), and particularly, the armouring and combining positions of the optical cables can be encapsulated by using a splitter.
In one embodiment, the integrally packaged light source 110 is an integrated structure formed by packaging a light source chip (not shown) and an optical coupling system (not shown) with a coupling optical fiber (not shown), the coupling optical fiber can be understood as a bare fiber, the connection between the integrally packaged light source 110 and the multimode or single-mode optical fiber is formed by fusing the coupling optical fiber and the multimode or single-mode optical fiber, and the fused part between the coupling optical fiber and the multimode or single-mode optical fiber is packaged by using an optical fiber splice closure (not shown). The light source chip and the optical coupling system with the coupling optical fiber are integrally packaged to form a packaged light source, and an optical fiber fusion mode is adopted, so that the problem that the existing light source and the existing transmission optical fiber are inconvenient to install, debug and maintain due to the fact that a special contact pin is adopted for coupling can be avoided, meanwhile, after the light source chip and the transmission optical fiber are packaged into a whole, loss of the optical fiber under various wavelengths can be reduced, and coupling efficiency is improved.
Further, refer to fig. 4, which is a schematic structural diagram of an integrated package light source in an embodiment; the integrally packaged light source 110a may include a light source chip 1121, a lens 1122, an optical isolator 1123, a ferrule 1124 and a coupling fiber S1; a lens 1122, an optical isolator 1123, a ferrule 1124 and a coupling fiber S1 are sequentially arranged on a laser light path radiated by the light source chip 1121; one end of the ferrule 1124 is coupled to the coupling fiber S1, the optical isolator 1123 is disposed at the other end of the ferrule 1124, and the lens 1122 is disposed between the optical isolator 1123 and the light source chip 1121. The lens 1122, the optical isolator 1123, the ferrule 1124 and the coupling fiber S1 may form an optical coupling system with a coupling fiber according to the present application, and the optical coupling system with a coupling fiber in the integrally packaged optical receiver has the same structure as the optical coupling system with a coupling fiber in the present embodiment, except that a chip in the optical coupling system with a coupling fiber in the integrally packaged optical receiver is a light receiving chip. In addition, with continued reference to fig. 4, the packaged light source 110a of the present application may further include an optical interface 1125, a laser package 1126, a laser package housing 1127, a laser package holder 1128, a sleeve 1129, and a wire seal 1131 in addition to the aforementioned structure. The description of the relative position relationship and the setting relationship of each part may refer to the accompanying drawings, and will not be further described herein.
Further, fig. 2 is a schematic structural diagram of the optical signal transmission system in this embodiment when an integrally packaged light source is adopted. In the figure, 10 denotes a valve control board, 110a denotes an integrally packaged light source in the present embodiment, 120a denotes an integrally packaged optical receiver in the present embodiment, S1 denotes a coupling optical fiber in the integrally packaged light source 110a, S2 denotes a coupling optical fiber in the integrally packaged optical receiver 120a, 130 denotes an optical fiber adapter, 140 denotes a splitter, S3 denotes a first optical cable, S4 denotes a second optical cable, S5 denotes a main optical cable, IP denotes a return inspection port of a thyristor control board, the port is typically connected to a laser source, which may be the same as the packaged light source 110a, FP represents the trigger port of the thyristor controlled board, the port is typically connected to an optical receiver, which may be the same as the packaged optical receiver 120a, connected to the FP port is an encapsulated light source 110a and connected to the IP port is an encapsulated light receiver 120 a. In order to realize optical communication transmission, the operating wavelength of the optical receiving chip in the packaged optical receiver 120a may also be any one of 850nm, 940nm, 980nm, 1310nm, or 1550 nm. The optical fiber adapter 130 can also be regarded as a part of a connection transmission module, when in use, the optical fiber adapter 130 is installed on an optical fiber adapter installation support, and defines an optical fiber transmission channel through two-dimensional channel coding, so that a plug-in board is not pulled out during optical fiber installation and maintenance, and the optical characteristic of transmission is ensured to be unchanged; by utilizing the structure of the optical fiber adapter mounting bracket, the difficulty of pulling and inserting optical fibers into the VBE back plate of the valve control device is avoided, and the consistency of optical signal transmission before and after maintenance is ensured.
It is to be understood that the packaged optical receiver 120a and the packaged optical source 110a have the same structure, and the difference is only the difference between the chips, where the chip in the packaged optical source 110a is the optical source chip, and the chip in the packaged optical source 110a is the optical receiving chip, and for the description of the other components and the positional relationship between the other components and the chips, reference may be made to the description of the packaged optical source 110a, and details are not repeated here.
In one embodiment, the integrally packaged light source is an integrated structure formed by packaging a light source chip (not shown) and a pigtailed optical coupling system (not shown); the integrally packaged optical receiver is an integral structure formed by packaging an optical receiving chip (not shown) and an optical coupling system (not shown) with a tail fiber. Further, the pigtailed optical coupling system (not shown) may comprise a standard fiber optic connector (not shown) including any of a FC standard fiber optic connector, a LC standard fiber optic connector, or a ST standard fiber optic connector. The arrangement can reduce the insertion loss of the optical fiber connection part and ensure the reliability, consistency and stability of the optical pulse signal transmission of the transmission system. In this embodiment, except that the optical coupling system with the pigtail is different from the foregoing embodiment, the description and the arrangement of the remaining parts may refer to the description of the foregoing embodiment, and further description is omitted here. In addition, for the description of the integrally packaged optical receiver in this embodiment, reference may be made to the description of the packaged light source in this embodiment, which is not further described herein.
In one embodiment, the independently packaged light source is a packaged light source with a connecting seat formed by integrating a light source chip on the connecting seat; the independently packaged optical receiver is a packaged optical receiver with a connecting seat formed by integrating a light receiving chip on the connecting seat. Further, the connection between the packaged light source formed by independent packaging and the multimode or single-mode optical fiber is to connect the multimode or single-mode optical fiber integrated with a standard optical fiber connector with a connecting seat of the packaged light source.
Specifically, fig. 3 is a schematic structural diagram of an optical signal transmission system in another embodiment when an independent package light source is adopted. In fig. 3, the individual packaged light source 110b is a packaged light source with a connection socket (not shown in fig. 3) formed by integrating a light source chip on the connection socket, and the individual packaged light receiver 120b is a packaged light receiver with a connection socket formed by integrating a light receiving chip on the connection socket (not shown in fig. 3); specifically, the multimode/single-mode optical fiber connected to the individually packaged light source 110b and the individually packaged optical receiver 120b may be made in a jumper form (integrated with a standard optical fiber connector), and then the multimode/single-mode optical fiber integrated with the standard optical fiber connector is directly connected to the individually packaged light source 110b and the individually packaged optical receiver 120b with the connection socket. It is understood that the standard fiber optic connector in this embodiment may be the same as the aforementioned standard fiber optic connector, i.e., may include any one of a FC standard fiber optic connector, a LC standard fiber optic connector or a ST standard fiber optic connector. In addition, in this embodiment, except that the packaging manner of the light source is different from that of the foregoing embodiment, the description and the arrangement of the remaining portions may refer to the description of the foregoing embodiment, and further description is omitted here.
Specifically, the light source chip used in the present application may include any one of a Vertical Cavity Surface Emitting light source chip (Vertical Cavity Emitting Laser), a semiconductor light source chip (LD), or a Light Emitting Diode (LED); according to the foregoing description, since the driving power of the integrally packaged light source of the present application is less than 20mW, the driving power of the vertical cavity surface emitting light source chip selected in this embodiment should also be less than 20mW, the semiconductor light source chip should also be less than 20mW, and the light emitting diode should also be less than 20 mW; further, the operating wavelength of the light source chip of the present application may be any one of 850nm, 940nm, 980nm, 1310nm, or 1550 nm. The driving power of the package light source 110 formed after the integrated package is adopted in the application is less than 20mW, the problem that the temperature of a transmission system device and a cabinet body is increased due to the fact that the valve control board card generates heat due to the fact that the driving power required by the light source is large can be avoided, and meanwhile, the vertical cavity surface emitting type light source chip is adopted, and the fact that the vertical cavity surface emitting type light source chip has high emitting power can be guaranteed.
It can be understood that, for the specific arrangement and connection relationship of the IP port (the packaged light source connected to the thyristor control board 210) and the FP port (the packaged light receiver connected to the thyristor control board 210) on the thyristor control board 210 on the side of the thyristor control device 20, reference may be made to the foregoing description of the packaged light source 110 and the packaged light receiver 120 on the side of the valve control device, and further description is not repeated here.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (13)
1. A novel electric trigger thyristor converter valve optical signal transmission system in a converter station is characterized in that the transmission system comprises a valve control device and a thyristor control device;
the valve control device comprises at least one valve control board card, wherein a packaging light source and a packaging optical receiver are integrated on the valve control board card, and the packaging mode of the packaging light source is the same as that of the packaging optical receiver; the thyristor control device comprises a thyristor control board used for triggering the thyristor to be turned on or turned off;
the valve control board is connected with the trigger channel on the thyristor control board through multimode or single-mode fiber communication; the valve control board card is provided with a packaging optical receiver and a return inspection channel on the thyristor control board, and the packaging optical receiver is connected with the return inspection channel on the thyristor control board through a multimode or single-mode optical fiber;
the packaged light source is integrally packaged or independently packaged; the integrally packaged light source is provided with a tail fiber or a coupling optical fiber, and the independently packaged light source is provided with a connecting seat; wherein the driving power of the integrally packaged or independently packaged light source is less than 20 mW.
2. The transmission system according to claim 1, wherein the integrally packaged light source is an integral structure formed by a light source chip and an optical coupling system package with a coupling optical fiber.
3. The transmission system of claim 2, wherein the optical coupling system with coupled fiber comprises a lens, an optical isolator, a ferrule and a coupled fiber;
a lens, an optical isolator, a ferrule and a coupling optical fiber are sequentially arranged on a laser light path radiated by the light source chip; one end of the ferrule is coupled with the coupling optical fiber, the optical isolator is arranged at the other end of the ferrule, and the lens is arranged between the optical isolator and the light source chip.
4. The transmission system according to claim 3, wherein the connection between the encapsulated light source and the multimode or single-mode optical fiber is formed by fusion splicing the coupling fiber to the multimode or single-mode optical fiber.
5. The transmission system according to claim 4, wherein the fusion splice of the coupling fiber and the multimode or single-mode fiber is encapsulated with a fiber splice closure.
6. The transmission system according to claim 1, wherein the integrally packaged light source is an integrated structure formed by packaging a light source chip and a pigtailed optical coupling system.
7. The transmission system of claim 6, wherein the pigtailed optical coupling system comprises a standard fiber optic connector comprising any of a FC standard fiber optic connector, a LC standard fiber optic connector, or a ST standard fiber optic connector.
8. The transmission system according to claim 1, wherein the individually packaged light source is a packaged light source with a connection socket formed by integrating a light source chip on the connection socket.
9. The transmission system according to claim 8, wherein the connection between the packaged light source and the multi-mode or single-mode optical fiber formed by independent packaging is a connection between a multi-mode or single-mode optical fiber integrated with a standard optical fiber connector and a connection socket of the packaged light source.
10. The transmission system according to any one of claims 2 to 9, wherein the light source chip comprises any one of a vertical cavity surface emitting light source chip, a semiconductor light source chip, or a light emitting diode.
11. The transmission system according to any one of claims 2 to 9, wherein the multimode optical fiber of the multimode or single mode optical fiber comprises a 50 μ ι η/125 multimode optical fiber or a 62.5 μ ι η/125 multimode optical fiber;
the single mode fiber comprises a 9 μm/125 single mode fiber.
12. The transmission system according to claim 11, wherein the valve-regulated card is provided with a plurality of encapsulated light sources and a plurality of encapsulated light receivers, and a plurality of multimode/single-mode optical fibers connected with each encapsulated light source are armored into at least one first optical cable; and a plurality of multimode/single-mode optical fibers connected with the packaged optical receivers are armored into at least one second optical cable.
13. The transmission system of claim 12, wherein each of the first optical cables is combined with each of the second optical cables to form a main optical cable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921768352.6U CN210690882U (en) | 2019-10-21 | 2019-10-21 | Novel electric trigger thyristor converter valve optical signal transmission system in converter station |
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| CN201921768352.6U CN210690882U (en) | 2019-10-21 | 2019-10-21 | Novel electric trigger thyristor converter valve optical signal transmission system in converter station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646901A (en) * | 2019-10-21 | 2020-01-03 | 中国南方电网有限责任公司超高压输电公司 | Novel electric trigger thyristor converter valve optical signal transmission system in converter station |
| CN116608891A (en) * | 2023-07-20 | 2023-08-18 | 山东省科学院激光研究所 | Optical fiber F-P cavity sensor and manufacturing method thereof |
-
2019
- 2019-10-21 CN CN201921768352.6U patent/CN210690882U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646901A (en) * | 2019-10-21 | 2020-01-03 | 中国南方电网有限责任公司超高压输电公司 | Novel electric trigger thyristor converter valve optical signal transmission system in converter station |
| CN116608891A (en) * | 2023-07-20 | 2023-08-18 | 山东省科学院激光研究所 | Optical fiber F-P cavity sensor and manufacturing method thereof |
| CN116608891B (en) * | 2023-07-20 | 2023-11-03 | 山东省科学院激光研究所 | Optical fiber F-P cavity sensor and manufacturing method thereof |
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