CN103731209A - Single-optical-fiber bidirectional communication method for high-voltage direct current transmission - Google Patents
Single-optical-fiber bidirectional communication method for high-voltage direct current transmission Download PDFInfo
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Abstract
The invention provides a single-optical-fiber bidirectional communication method for high-voltage direct current transmission. The method comprises the following steps that an optical fiber transceiver is selected; optical fibers with the wave length matched with that of the optical fiber transceiver are selected and laid; bidirectional communication is conducted through one single optical fiber. According to the single-optical-fiber bidirectional communication method for high-voltage direct current transmission, the optical fiber transceiver is adopted, so that the number of optical fibers is reduced; at the valve-base controller side and the valve module side, single-direction optical transceivers are replaced by the single-fiber-optical bidirectional transceiver, the number of the single-direction optical transceivers is two times as many as that of the single-fiber-optical bidirectional transceivers, the number of optical fibers in the engineering is reduced by half, and therefore the purposes that cost is reduced, the workload is reduced, space is saved, and maintenance is convenient are achieved.
Description
Technical field
The present invention relates to a kind of communication means, be specifically related to a kind of single fiber two-way communication for high voltage direct current transmission.
Background technology
Modularization multi-level converter valve, as core, the key equipment of flexible DC power transmission, guarantees its safe and reliable stable operation, is not only the requirement of system to device, the requirement of unit protection self especially.Valve base control appliance is as the control appliance of directly facing converter valve, and its reliability service is most important equally.Due to the topological structure of modularization multi-level converter, caused each submodule must have a pair of optical fiber to complete with valve base control appliance and communicated by letter.As can be seen here, high voltage direct current transmission converter valve is completed communication and then completed control and protection to valve by a large amount of optical fiber, and in current conversion station work progress, laying a large amount of optical fiber cables is a hard work.
In high-voltage dc transmission electrical domain, converter valve is comprised of a lot of valve modules unit, due to the needs of insulation, and the general transmitting-receiving that adopts a pair of optical fiber to realize information between valve module unit and valve base control appliance.Valve module, by the wherein instruction of an optical fiber reception valve base control appliance, sends the state information of valve module to valve base control appliance by an other optical fiber, thereby finally completes the object of conversion and the direct current transportation of electric energy.If the quantity of visible converter valve module is N, that scene just at least needs to lay 2*N root optical fiber.
Application number is that 201010195619.4 patent of invention discloses a kind of high-speed single-fiber bidirectional optical module, comprises burst type laser driver, microcontroller, single-fiber bidirectional optical device, avalanche photodiodes bias voltage control circuit, limiting amplifier and SFP+ connector; Wherein: burst type laser driver, microcontroller and limiting amplifier are connected with SFP+ connector respectively, by SFP+ connector and host computer, communicate; Microcontroller is connected with burst type laser driver and limiting amplifier respectively; Single-fiber bidirectional optical device is connected between burst type laser driver and limiting amplifier.Application number is that 200920205590.6 utility model patent discloses a kind of single-fiber two-way transmission device, comprise laser, the lock pin adapter of optical fiber head, filter, optical receiver, described laser and described lock pin adapter are oppositely arranged, described optical filter coating face becomes 45 degree settings with the transmitting light path of described laser, described optical receiver is arranged on the light that receives described filter refraction between described laser and described lock pin adapter, the input path of described optical receiver becomes 90 degree settings with described lock pin adapter, the end face inclination angle of described lock pin adapter is that 10 degree are to 12 degree.This utility model no longer needs to arrange isolating device in single-fiber two-way transmission device, not only simplifies the structure and designs but also saved cost.Foregoing invention and utility model patent all do not propose to be applied to high-voltage dc transmission electrical domain.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of single fiber two-way communication for high voltage direct current transmission, by adopting fiber optical transceiver, realize minimizing number of fibers; In valve base controller side and valve module side, single fiber bi-directional transceiver is replaced to the unidirectional optical transceiver of twice quantity, number of fibers in engineering can be reduced to half, reach and reduce costs, reduce workload, save space, be convenient to the object of safeguarding.
In order to realize foregoing invention object, the present invention takes following technical scheme
The invention provides a kind of single fiber two-way communication for high voltage direct current transmission, said method comprising the steps of:
Step 1: select fiber optical transceiver;
Step 2: the optical fiber that selection and selected fiber optical transceiver wavelength match, and lay;
Step 3: utilize single fiber to carry out two-way communication.
In described step 1, select the fiber-optic transceiver device of fiber optical transceiver as valve base control appliance and converter valve submodule; Described fiber optical transceiver possesses single fiber bidirectional transmit-receive ability, and maximum transmission rate is higher than the transmission rate of valve base control appliance and submodule.
Described fiber optical transceiver is the fiber optical transceiver of half-duplex mode.Described fiber optical transceiver comprises optical module, supports respectively the exchange chip of the Ethernet of optical fiber interface and electrical interface, is with electric Ethernet interface, USB power supply interface and the power adaptation chip of isolation, the power supply of provide+5V of USB power supply interface, the power supply that+5V power supply produces 3.3V and 2.5V by power adaptation chip is supplied with respectively optical module, exchange chip and electric Ethernet interface.
In described step 2, the optical fiber two ends of laying connect respectively valve base control appliance and submodule.Described optical fiber is multimode fiber.
Described step 3 comprises the following steps:
Step 3-1: design transmitted in both directions agreement, wherein, submodule takes to trigger the agreement of calling response, once find the communication calling of valve base controller, just after certain fixing time delay, the information of submodule self is sent to valve base control appliance; Valve base control appliance stops issuing during this period, waits for the data that receive submodule;
Step 3-2: according to the transmitted in both directions agreement of design, repeat to take the agreement that triggers calling response to utilize simple optical fiber to carry out two-way communication, realize the information interaction of valve base control appliance and submodule.
Compared with prior art, beneficial effect of the present invention is:
The calling response communication protocol of the time-sharing multiplex 1, proposing, can improve the communication efficiency of optical fiber, has avoided transmitting-receiving to occur simultaneously, for realizing single fiber bi-directional communication, provides possibility.
2, the employing single-optical fiber bi-directional transceiver method proposing, all reduces half by number of fibers in engineering and number of transceivers, thereby can reduce costs, and reduces workload, saves space, is convenient to safeguard simultaneously.
4, the mode based on time-sharing multiplex and single-optical fiber bi-directional transceiver proposing, owing to having reduced number of elements, thereby has improved valve global reliability.
5, this method is not only applicable to flexible DC power transmission field, is equally applicable to the conventional direct current transportation field based on thyristor.
Accompanying drawing explanation
Fig. 1 is the flow chart for the single fiber two-way communication of high voltage direct current transmission.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As Fig. 1, the invention provides a kind of single fiber two-way communication for high voltage direct current transmission, this method completes communicating by letter of valve base control appliance and valve cell by the calling response agreement of time-sharing multiplex.Valve base control appliance and valve module are taked the agreement of calling response, valve base control appliance is the promoter of each transceiver communication, valve module, in passive position, once find the communication calling of valve base controller, just sends the information of oneself to valve base control appliance after a fixing time delay.Valve base control appliance initiates will guarantee, from no longer initiate calling in certain time delay, to guarantee that valve module has time enough to complete and replys, to be about to self information and to be sent to higher level's valve base control appliance after calling at every turn.
Specifically by following step, realize:
Step 1: select fiber optical transceiver;
Step 2: the optical fiber that selection and selected fiber optical transceiver wavelength match, and lay;
Step 3: utilize single fiber to carry out two-way communication.
In described step 1, select the fiber-optic transceiver device of fiber optical transceiver as valve base control appliance and converter valve submodule; Described fiber optical transceiver possesses single fiber bidirectional transmit-receive ability, and maximum transmission rate is higher than the transmission rate of valve base control appliance and submodule.
Described fiber optical transceiver is the fiber optical transceiver of half-duplex mode.Described fiber optical transceiver comprises optical module, supports respectively the exchange chip of the Ethernet of optical fiber interface and electrical interface, is with electric Ethernet interface, USB power supply interface and the power adaptation chip of isolation, the power supply of provide+5V of USB power supply interface, the power supply that+5V power supply produces 3.3V and 2.5V by power adaptation chip is supplied with respectively optical module, exchange chip and electric Ethernet interface.
In described step 2, the optical fiber two ends of laying connect respectively valve base control appliance and submodule.Described optical fiber is multimode fiber.
Described step 3 comprises the following steps:
Step 3-1: design transmitted in both directions agreement, wherein, submodule takes to trigger the agreement of calling response, once find the communication calling of valve base controller, just after certain fixing time delay, the information of submodule self is sent to valve base control appliance; Valve base control appliance stops issuing during this period, waits for the data that receive submodule;
Step 3-2: according to the transmitted in both directions agreement of design, repeat to take the agreement that triggers calling response to utilize simple optical fiber to carry out two-way communication, realize the information interaction of valve base control appliance and submodule.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although the present invention is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the specific embodiment of the present invention, and do not depart from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of claim scope of the present invention.
Claims (7)
1. for a single fiber two-way communication for high voltage direct current transmission, it is characterized in that: said method comprising the steps of:
Step 1: select fiber optical transceiver;
Step 2: the optical fiber that selection and selected fiber optical transceiver wavelength match, and lay;
Step 3: utilize single fiber to carry out two-way communication.
2. the single fiber two-way communication for high voltage direct current transmission according to claim 1, is characterized in that: in described step 1, select the fiber-optic transceiver device of fiber optical transceiver as valve base control appliance and converter valve submodule; Described fiber optical transceiver possesses single fiber bidirectional transmit-receive ability, and maximum transmission rate is higher than the transmission rate of valve base control appliance and submodule.
3. the single fiber two-way communication for high voltage direct current transmission according to claim 2, is characterized in that: the fiber optical transceiver that described fiber optical transceiver is half-duplex mode.
4. the single fiber two-way communication for high voltage direct current transmission according to claim 3, it is characterized in that: described fiber optical transceiver comprises optical module, supports respectively the exchange chip of the Ethernet of optical fiber interface and electrical interface, is with electric Ethernet interface, USB power supply interface and the power adaptation chip of isolation, the power supply of provide+5V of USB power supply interface, the power supply that+5V power supply produces 3.3V and 2.5V by power adaptation chip is supplied with respectively optical module, exchange chip and electric Ethernet interface.
5. the single fiber two-way communication for high voltage direct current transmission according to claim 1, is characterized in that: in described step 2, the optical fiber two ends of laying connect respectively valve base control appliance and submodule.
6. the single fiber two-way communication for high voltage direct current transmission according to claim 5, is characterized in that: described optical fiber is multimode fiber.
7. the single fiber two-way communication for high voltage direct current transmission according to claim 1, is characterized in that: described step 3 comprises the following steps:
Step 3-1: design transmitted in both directions agreement, wherein, submodule takes to trigger the agreement of calling response, once find the communication calling of valve base controller, just after certain fixing time delay, the information of submodule self is sent to valve base control appliance; Valve base control appliance stops issuing during this period, waits for the data that receive submodule;
Step 3-2: according to the transmitted in both directions agreement of design, repeat to take the agreement that triggers calling response to utilize simple optical fiber to carry out two-way communication, realize the information interaction of valve base control appliance and submodule.
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Cited By (8)
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|---|---|---|---|---|
| EP2945395A3 (en) * | 2014-05-14 | 2015-11-25 | LSIS Co., Ltd. | Data processing device for high voltage direct current transmission system and method thereof |
| CN105098824A (en) * | 2014-05-14 | 2015-11-25 | Ls产电株式会社 | Data processing device and method for high voltage direct current transmission |
| CN105098827A (en) * | 2014-05-14 | 2015-11-25 | Ls产电株式会社 | Data processing device and method for high voltage direct current transmission |
| CN105610492A (en) * | 2015-12-31 | 2016-05-25 | 许继集团有限公司 | Optical fibre communication system and method for direct-current transmission converter valve monitoring system |
| CN106055509A (en) * | 2016-05-31 | 2016-10-26 | 珠海格力电器股份有限公司 | Optical fiber communication system and configuration method of optical fiber communication |
| CN107623330A (en) * | 2017-08-29 | 2018-01-23 | 全球能源互联网研究院有限公司 | A kind of control method of valve base control system |
| 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 |
| CN112713619A (en) * | 2020-12-24 | 2021-04-27 | 深圳市瑞葆科技有限公司 | Power transmission method |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10250153B2 (en) | 2014-05-14 | 2019-04-02 | Lsis Co., Ltd. | Data processing device for high voltage direct current transmission system and method thereof |
| US10250154B2 (en) | 2014-05-14 | 2019-04-02 | Lsis Co., Ltd. | Data processing device and method for high voltage direct current transmission system |
| CN105098827B (en) * | 2014-05-14 | 2018-05-18 | Ls产电株式会社 | For the data processing equipment and method of HVDC transmission system |
| CN105098824B (en) * | 2014-05-14 | 2018-09-04 | Ls产电株式会社 | Data processing equipment and method for HVDC transmission system |
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| CN105098824A (en) * | 2014-05-14 | 2015-11-25 | Ls产电株式会社 | Data processing device and method for high voltage direct current transmission |
| EP2945395A3 (en) * | 2014-05-14 | 2015-11-25 | LSIS Co., Ltd. | Data processing device for high voltage direct current transmission system and method thereof |
| US10211749B2 (en) | 2014-05-14 | 2019-02-19 | Lsis Co., Ltd. | Data processing device and method for high voltage direct current transmission system |
| CN105098826A (en) * | 2014-05-14 | 2015-11-25 | Ls产电株式会社 | Data processing device for high voltage direct current transmission system and method thereof |
| CN105098827A (en) * | 2014-05-14 | 2015-11-25 | Ls产电株式会社 | Data processing device and method for high voltage direct current transmission |
| CN105610492A (en) * | 2015-12-31 | 2016-05-25 | 许继集团有限公司 | Optical fibre communication system and method for direct-current transmission converter valve monitoring system |
| CN105610492B (en) * | 2015-12-31 | 2018-01-23 | 许继集团有限公司 | A kind of optical fiber telecommunications system and method for direct-current transmission converter valve monitoring system |
| CN106055509B (en) * | 2016-05-31 | 2022-08-05 | 珠海格力电器股份有限公司 | Optical fiber communication system and configuration method of optical fiber communication |
| CN106055509A (en) * | 2016-05-31 | 2016-10-26 | 珠海格力电器股份有限公司 | Optical fiber communication system and configuration method of optical fiber communication |
| CN107623330A (en) * | 2017-08-29 | 2018-01-23 | 全球能源互联网研究院有限公司 | A kind of control method of valve base control system |
| CN107623330B (en) * | 2017-08-29 | 2020-06-02 | 全球能源互联网研究院有限公司 | Control method of valve base control system |
| 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 |
| CN112713619A (en) * | 2020-12-24 | 2021-04-27 | 深圳市瑞葆科技有限公司 | Power transmission method |
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Application publication date: 20140416 |