CN201336663Y - Laser energy supply system with standby laser - Google Patents
Laser energy supply system with standby laser Download PDFInfo
- Publication number
- CN201336663Y CN201336663Y CNU2009200952413U CN200920095241U CN201336663Y CN 201336663 Y CN201336663 Y CN 201336663Y CN U2009200952413 U CNU2009200952413 U CN U2009200952413U CN 200920095241 U CN200920095241 U CN 200920095241U CN 201336663 Y CN201336663 Y CN 201336663Y
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- laser
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- energy
- power optical
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Abstract
The utility model discloses a high-reliability laser energy supply system with a standby laser. The system comprises at least one main laser, a high-power optical coupler, at least one remote-terminal optical receiving module and the standby laser, which are connected in sequence; a laser group including the main laser and the standby laser serves as a light source, the standby laser is in a cold standby state, the standby laser can automatically start and quickly switch into the main laser under the condition that the main laser is in failure, and can replace the laser in failure in a hot-swap manner at the same time. The utility model has the characteristics of high reliability, low cost, high efficiency of energy utilization and simple maintenance.
Description
Technical field
The utility model relates to a kind of reliability height, and cost is low, and the energy utilization efficiency height is safeguarded the laser energy supplying system of simply preparing and carrying with laser.
Background technology
At present, measuring-signal generally passes through cable transmission in the power system measuring, and the isolation of measuring system high and low pressure side belongs to electromagnetic isolation.Along with modern power systems to superhigh pressure, remote, jumbo trend development, its measuring system and signal transmission system are proposed more and more higher requirement, traditional system that utilizes the cable transmission signal has exposed incompatible with it weakness, as the insulation system complexity, the measuring equipment volume is big, and cost is also high; Equipment is dangerous to be improved, and the signal transmission is subjected to disturb big.
Photoelectron science and development of fiber technology have promoted to adopt laser energy supplying system the application in power system measuring of optical fiber as the signal transport vehicle.The laser energy supplying system is integrated photoelectron technology and optical fiber technology, measure at the voltage and current of electric power system, silicon controlled is dynamically adjusted etc. and have been obtained application aspect many in the flexible transmission, also obtained in radio communication, Medical Devices, nuclear power, oil recovery and other fields using widely.The laser energy supplying system can be used in the measurement environment of electric power system heavy pollution, very noisy, strong-electromagnetic field, and simple in structure, in power system measuring, very remarkable advantages is arranged, as:
1) solves topmost Insulation Problems in the power system measuring easily.Isolate high and low voltage side by optical fiber, can be easily at the electric weight of ground survey high potential point, it is dangerous that low-pressure side does not have open circuit;
2) signal adopts optical transmission, has reduced the electromagnetic interference in the transmission course effectively;
3) speed of light is fast, frequency is high, can transmit high speed information;
4) linearity height of signal transmission can be realized the undistorted transmission between the input-output signal;
5) combine with modern electronic equipment easily.
In recent years, the laser energy supplying system in the voltage of electric power system, current measurement, flexible transmission silicon controlled dynamically adjust etc. and to have obtained application aspect many.The laser energy supplying system of in electric power system, using at present, it all is the corresponding Optical Receivers of a laser, measure single-phase voltage or current signal, if certain laser fails, cause the operational failure of whole laser energy supplying system, and then make the pilot signal loss of data of this single-phase voltage or electric current of bus, and cause great hidden danger for the safe operation of electrical network, reliability has become to estimate the greatest factor of laser energy supplying system performance index.
On the other hand, because the price of photovoltaic energy conversion device is high in laser and the Optical Receivers, the price of long-distance optical fiber is not cheap yet, so product cost is whether the laser energy supplying system can obtain the requisite Consideration of large-scale application.The price aggregate of the photovoltaic energy conversion device in laser and the Optical Receivers is about 10000 yuan, the price of energy supply optical cable is at present up to 10000 yuan/km, if laser fails, the price of changing a cover system or device is all quite high, brings huge pressure to operation expense.
Structure from the laser energy supplying system of present use, the corresponding Optical Receivers of laser, because the laser peak power output that this system uses can reach 2W, and many far-end Optical Receivers energy needed are no more than 300mW, even count the influence of the conversion efficiency of the loss of energy supply optical fiber and photovoltaic energy conversion device in, a laser can satisfy the energy supply needs of a plurality of Optical Receivers with one-to-many manner.For the mode one to one of present use, the utilization ratio of light energy is lower, and from another angle, the cost of the laser energy supplying system of this mode one to one is higher.
Summary of the invention
Technical problem to be solved in the utility model is, overcome the above-mentioned deficiency of prior art, a kind of high reliability laser energy supplying system of preparing and carrying with laser is provided, thereby further improved the reliability of laser energy supplying system in operation of power networks, and reduced product cost, improved the energy utilization efficiency height, safeguarded also simpler.
The technical scheme that the utility model adopted is:
A kind of laser energy supplying system of preparing and carrying with laser, comprise at least one main laser, high-power optical coupler and at least one the far-end Optical Receivers that connect successively, it is characterized in that, also comprise standby laser, by the laser array of main laser and standby laser constitution as light source, described standby laser is in cold standby state, under the situation that main laser breaks down, standby laser startup automatically also switches to main laser fast, can the laser that break down be changed by hot-swappable mode simultaneously.
Enumerate three kinds of specific implementation forms of the present invention below.
First kind is: high-power optical coupler is 3 * 3 high-power optical couplers, the light energy that is used for 2 main lasers are sent is coupled, be re-assigned to 3 passages in 1: 1: 1 ratio again and transmit, light energy is provided for 3 far-end Optical Receivers with multicore energy supply optical fiber.
Second kind is: high-power optical coupler is the high-power optical coupler of M * N, be used for the light energy that M-1 main laser sends is coupled earlier, equal proportion is re-assigned to N passage and transmits with multicore energy supply optical fiber again, light energy is provided for N far-end Optical Receivers, wherein, M≤N.
The third is: high-power optical branching device comprises high-power optical branching device in M * 1 and the high-power optical branching device of 1 * N and is connected between the two single core energy supply optical fiber, the light energy that is used for M-1 main laser sent is coupled with the high-power optical branching device in M * 1 earlier, by the long-distance transmission of single core energy supply optical fiber, use the high-power optical branching device equal proportion of 1 * N to be re-assigned to N passage again, light energy is provided for N far-end Optical Receivers, wherein, M≤N.
The high reliability laser energy supplying system of preparing and carrying with laser of the present utility model, adopt main laser and standby laser constitution laser array as light source, when the energy that provides at less main laser enough satisfies the needs of more Optical Receivers, the use of standby laser, further reduce the potential safety hazard that laser fails is brought to operation of power networks, greatly improved laser energy supplying system reliability of operation.In single laser energy supplying system, high-power optical coupler quantity is few, cost is not high, but utilize different types of high-power optical coupler, with the laser of minimum number, high-power optical branching device and optical fiber, realize the transmission of more multichannel light energy, can reduce product cost greatly and improve the energy utilization efficiency of laser energy supplying system.Whole laser energy supplying system has the reliability height, and cost is low, and the energy utilization efficiency height is safeguarded characteristic of simple.
Description of drawings
Fig. 1 adopts 3 * 3 high-power optical couplers, and has the schematic diagram of the laser energy supplying system of standby laser;
Fig. 2 adopts the high-power optical coupler of M * N, and has the schematic diagram of the laser energy supplying system of standby laser;
Fig. 3 adopts M * 1 and the high-power optical branching device combination of 1 * N, and has the schematic diagram of the laser energy supplying system of standby laser.
Wherein:
11: main laser 12: standby laser
The high-power optical coupler of the high-power optical coupler 22:M * N in 21:3 * 3
The high-power optical branching device of the high-power optical branching device 24:1 * N in 23:M * 1
31: far-end Optical Receivers 41: multicore energy supply optical fiber
41: single core energy supply optical fiber
Embodiment
Below in conjunction with embodiment and accompanying drawing the high reliability laser energy supplying system of preparing and carrying with laser of the present utility model is made a detailed description.
The high reliability laser energy supplying system of preparing and carrying with laser of the present utility model, the laser array that adopts main laser and standby laser constitution is as light source, main laser is in running order, constitute main light source, guarantee the abundance of laser energy supply, standby laser is in cold standby state, constitutes secondary light source.Under the situation that main laser breaks down, standby laser can start and switch to fast main laser automatically.Simultaneously can be by hot-swappable mode, with the laser replacing of breaking down, make it as standby laser and be in cold standby state.Whole process need not system cut-off, guarantees the non-stop run of laser energy supplying system all the time.
When standby laser guarantees reliability,,, realize the transmission of more multichannel light energy with the laser of smaller amounts, high-power optical branching device and optical fiber by the use of the high-power optical branching device of variety classes.
Embodiment 1:
Referring to Fig. 1, three phase supply problem for electrical system bus, utilize 3 * 3 high-power optical couplers 21, the light energy coupling that 2 main lasers 11 are sent in realization, be re-assigned to 3 passages in 1: 1: 1 ratio again and transmit, light energy is provided for 3 far-end Optical Receivers 31 with multicore energy supply optical fiber 41.
Embodiment 2:
Referring to Fig. 2, for more multichannel powerup issue, utilize M * N (high-power optical coupler 22 of M≤N), realization is coupled the light energy that less (M-1) individual main laser sends earlier, equal proportion is re-assigned to a more N passage and transmits with multicore energy supply optical fiber 41 again, light energy is provided for N far-end Optical Receivers, 1 remaining laser is as standby laser.
Embodiment 3:
Referring to Fig. 3, far away for transmission range, consider to save the problem of fiber resource, utilize the combination (M≤N) of high-power optical branching device 23 in M * 1 and the high-power optical branching device 24 of 1 * N, realization is coupled the light energy that less (M-1) individual main laser sends earlier with the high-power optical branching device 23 in M * 1, by single core energy supply optical fiber 42 long-distance transmission, use high-power optical branching device 24 equal proportions of 1 * N to be re-assigned to a more N passage again, light energy is provided for N far-end Optical Receivers, 1 remaining laser is as standby laser.
Claims (4)
1. prepare and carry the laser energy supplying system of using laser for one kind, comprise at least one main laser, high-power optical coupler and at least one the far-end Optical Receivers that connect successively, it is characterized in that, also comprise standby laser, by the laser array of main laser and standby laser constitution as light source, described standby laser is in cold standby state, under the situation that main laser breaks down, standby laser startup automatically also switches to main laser fast, can the laser that break down be changed by hot-swappable mode simultaneously.
2. the laser energy supplying system of preparing and carrying with laser according to claim 1, it is characterized in that, described high-power optical coupler is 3 * 3 high-power optical couplers, the light energy that is used for 2 main lasers are sent is coupled, be re-assigned to 3 passages in 1: 1: 1 ratio again and transmit, light energy is provided for 3 far-end Optical Receivers with multicore energy supply optical fiber.
3. the laser energy supplying system of preparing and carrying with laser according to claim 1, it is characterized in that, described high-power optical coupler is the high-power optical coupler of M * N, be used for the light energy that M-1 main laser sends is coupled earlier, equal proportion is re-assigned to N passage and transmits with multicore energy supply optical fiber again, light energy is provided for N far-end Optical Receivers, wherein, M≤N.
4. the laser energy supplying system of preparing and carrying with laser according to claim 1, it is characterized in that, described high-power optical branching device comprises high-power optical branching device in M * 1 and the high-power optical branching device of 1 * N and is connected between the two single core energy supply optical fiber, the light energy that is used for M-1 main laser sent is coupled with the high-power optical branching device in M * 1 earlier, by the long-distance transmission of single core energy supply optical fiber, use the high-power optical branching device equal proportion of 1 * N to be re-assigned to N passage again, light energy is provided for N far-end Optical Receivers, wherein, M≤N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200952413U CN201336663Y (en) | 2009-01-07 | 2009-01-07 | Laser energy supply system with standby laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200952413U CN201336663Y (en) | 2009-01-07 | 2009-01-07 | Laser energy supply system with standby laser |
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| Publication Number | Publication Date |
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| CN201336663Y true CN201336663Y (en) | 2009-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2009200952413U Expired - Lifetime CN201336663Y (en) | 2009-01-07 | 2009-01-07 | Laser energy supply system with standby laser |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242476A (en) * | 2013-06-07 | 2014-12-24 | 鸿富锦精密工业（深圳）有限公司 | Power distribution system |
| CN104348542A (en) * | 2013-08-07 | 2015-02-11 | 陶魁园 | Intelligent monitoring scheme of optical network |
| CN108292959A (en) * | 2015-11-26 | 2018-07-17 | 日本电信电话株式会社 | Node and optical functions system |
| WO2020244302A1 (en) * | 2019-06-03 | 2020-12-10 | 华为技术有限公司 | Method and device for light source switching |
-
2009
- 2009-01-07 CN CNU2009200952413U patent/CN201336663Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242476A (en) * | 2013-06-07 | 2014-12-24 | 鸿富锦精密工业（深圳）有限公司 | Power distribution system |
| CN104348542A (en) * | 2013-08-07 | 2015-02-11 | 陶魁园 | Intelligent monitoring scheme of optical network |
| CN108292959A (en) * | 2015-11-26 | 2018-07-17 | 日本电信电话株式会社 | Node and optical functions system |
| CN108292959B (en) * | 2015-11-26 | 2021-02-19 | 日本电信电话株式会社 | Node and optical power supply system |
| WO2020244302A1 (en) * | 2019-06-03 | 2020-12-10 | 华为技术有限公司 | Method and device for light source switching |
| US11877368B2 (en) | 2019-06-03 | 2024-01-16 | Huawei Technologies Co., Ltd. | Optical source switching method and apparatus |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091028 |