CN105871463B - A kind of low-power consumption fiber optic Ethernet interface of electric system protection device - Google Patents
A kind of low-power consumption fiber optic Ethernet interface of electric system protection device Download PDFInfo
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- CN105871463B CN105871463B CN201610179980.5A CN201610179980A CN105871463B CN 105871463 B CN105871463 B CN 105871463B CN 201610179980 A CN201610179980 A CN 201610179980A CN 105871463 B CN105871463 B CN 105871463B
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- 239000000835 fiber Substances 0.000 title claims abstract description 17
- 239000013307 optical fiber Substances 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 241000272814 Anser sp. Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
- H04B10/25891—Transmission components
-
- H02J13/0013—
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention belongs to automatic system of intelligent transformer station field more particularly to a kind of low-power consumption fiber optic Ethernet interfaces of electric system protection device.Including PHY chip, optical fiber receiver-transmitter module, resistor network；Fiber optic Ethernet interface is with 4 for one group, and every group contains 1 PHY chip, and 4 optical fiber receiver-transmitter modules, PHY chip and optical fiber receiver-transmitter module are coupled by resistor network.The independent resistor network of the present invention provides direct current biasing to the PECL input terminals of 4 ports, eliminates the resistor network of each port, and low power consumption resistance network is employed in interface circuit, significantly reduces power consumption, is conducive to simplify heat dissipation design, improves equipment dependability.
Description
Technical field
The invention belongs to automatic system of intelligent transformer station field more particularly to a kind of low work(of electric system protection device
Deplete fine Ethernet interface.By optimizing fiber optic Ethernet Interface design, resistor network power consumption is reduced, simplifies cooling facilities, carries
High equipment operational reliability.
Background technology
Intelligent substation is typically with three layer of two web frame, three layers, i.e.,：Station level, wall, process layer；Two nets,
I.e.：Process layer-interval layer network, wall-station level network.Process layer-interval layer network is divided into as GOOSE nets and SV nets,
The two networks can separate can also common network.Process layer-interval layer network, can to improve network all using fiber optic Ethernet
It is all designed by property using double-network redundant.
Smart machine (IED) in intelligent substation includes：Intelligent terminal, the intelligent assembly of process layer primary equipment,
The automation equipments such as protection, observing and controlling, automatic closing in interlayer, station level.
Q/GDW 441-2009《Intelligent substation Protection Technology specification》Regulation：Protection should be sampled directly, for list
The protection at interval should directly trip, and the protection for being related to multi-compartment is preferably directly tripped.For being related to the protection of multi-compartment, such as truly having must
Other wavy trajectories are used, relevant device should meet requirement of the protection to reliability and rapidity.Directly sampling refers to intelligence
Sampled value transmission is directly carried out without Ethernet switch and with point-to-point interconnection between electronic equipment (IED), is directly jumped
Lock refers to directly carry out between IED the transmission of breaker tripping and closing signal with point-to-point interconnection without Ethernet switch.
It directly adopts straight jump and is added significantly to protective device and the network interface quantity of other smart machines.Intelligent terminal and protection observing and controlling
Device needs to configure more fiber optic Ethernet interface, generally comprises：The active and standby network interfaces of GOOSE, the active and standby network interfaces of SV, station level are active and standby
Network interface and straight adopt directly jump special network interface etc..Some equipment even up to 10 or more network interfaces, fiber optic Ethernet interface power consumption compared with
Greatly, sizable calorific value is brought to equipment, generally requires to open on cabinet and industry sky is installed on heat emission hole or outdoors cabinet
Tune or other heat dissipation equipments.The degree of protection of device is thus reduced, the manufacture of outdoor cabinet and maintenance cost also carry significantly
It is high.
At present, what optical module was recommended is mostly PECL/LVPECL dc-couples matching, and this match circuit is in protocol conversion core
When the input of piece, output interface level are PECL/LVPECL level, worked normally as long as choosing correct resistance value.
PECL will consider that the output terminal of PECL adds a direct current biased electrical when AC coupled is output to the terminal load of 50 Ω
Resistance provides correct direct current biasing and terminal impedance matching in input terminal.
Fig. 1 is the LXT974 typical optical fiber interface circuit figures by taking a port as an example.Interface level is PECL, and 5V voltages supply
Electricity.In sending side using AC coupled, optical module input terminal using Dai Weinan equivalent resistances network provide 3.7V direct current biasings and
50 Ω impedance matchings.In receiving side using dc-couple, equally 3.0V direct current biasings are provided using Dai Weinan equivalent resistances network
With 50 Ω impedance matchings.
Typical circuit can provide good communication performance, but fiber optic Ethernet interface be entire smart machine power consumption it is big
Family.The power consumption for reducing this link is significant to improving equipment dependability.
Invention content
For problems of the prior art, the present invention propose a kind of low-power consumption optical fiber of electric system protection device with
Too network interface.Low power consumption resistance network is employed in interface circuit, significantly reduces power consumption, is conducive to simplified heat dissipation and sets
Meter improves equipment dependability.
The interface is made of PHY chip, optical fiber receiver-transmitter module, resistor network etc., it is characterised in that the following：
Fiber optic Ethernet interface with 4 be one group, every group contain 1 PHY chip, 4 optical fiber receiver-transmitter modules, PHY chip and
Optical fiber receiver-transmitter module is coupled by resistor network.
Pass through PECL interface inter-links between PHY chip and 100BASE-FX transceiver modules.Optical fiber receiver-transmitter module uses 3.3V
Power supply.
PHY chip is connected with the transmission signal of optical fiber receiver-transmitter module by AC coupled mode, by independent resistor network
Direct current biasing is provided to 4 PECL input terminals of PHY chip, at PHY chip, is used between the differential signal of sending direction
100 Ω resistance realize impedance matching.
PHY chip is connected with the reception signal of optical fiber receiver-transmitter module by AC coupled mode, by independent resistor network
Direct current biasing is provided to 4 PECL input terminals of PHY chip, at the close PHY chip, between the differential signal for receiving direction
Impedance matching is realized with 100 Ω resistance.
Resistor network include sending side biasing resistor network, sending side terminal resistance network, receiving side load resistor network,
Receiving side biasing resistor network；
Sending side biasing resistor network is by 3.3K Ω, and 5.1K Ω resistance is in series, and voltage 3.3V, power consumption is by 4
PECL input terminals are shared；
Sending side terminal resistance network is made of two 50 Ω resistance between being series at transmission differential signal, differential signal
Voltage effective value be 0.8V；
Receiving side load resistor network is made of two 200 Ω resistance, voltage 3.7V；
Receiving side biasing resistor network is by 3.3K Ω, and 5.1K Ω resistance is in series, voltage 5V；Power consumption is by 4 PECL
Input terminal is shared；
Receiving side terminal resistance network is made of two 50 Ω resistance between being series at differential signal, principle, power consumption and
Sending side is identical.
The biasing networks of the terminal coupling circuit of transmission line and input terminal are detached to reduce by the present invention using AC coupled
Power consumption.Design for intelligent apparatus in substation, since the distance of PHY chip and optical module on PCB is close, use is this
Scheme does not influence performance.
The advantageous effect of the program：For possessing the substation IED or protection supervisory equipment of multiple optical ports, this hair
It is bright to provide direct current biasing using PECL input terminal of the independent resistor network to 4 ports, the resistor network of each port is eliminated,
Power consumption can be significantly reduced, is conducive to simplify heat dissipation design, improves system stability and safety.Improve equipment dependability.This
Invention is particularly suitable for device of the fiber optic Ethernet interface quantity at 4 or more.
Description of the drawings
Fig. 1 is the typical optical fiber interface schema of existing high speed IC chip.
Fig. 2 is the low-power consumption optical fiber interface figure of the embodiment of the present invention.
Specific embodiment
With reference to embodiment, the present invention is further illustrated with attached drawing, and the content that embodiment refers to is not to this
The restriction of invention.
Fig. 2 is the design circuit diagram of the low-power consumption optical fiber interface of 4 ports, has the inclined of independent receiving side and sending side
Network is put, input biasing is provided to 4 one group of port.It sends and receives signal and all employs AC coupled and series connection eventually
Hold match circuit.
Every 4 of the fiber optic Ethernet interface of the present embodiment is one group, and every group contains a piece of 4 port PHY chips of LXT974,4
AFBR-5803 optical fiber receiver-transmitter modules, are coupled therebetween by resistor network.
Pass through PECL interface inter-links between 4 port PHY chips of LXT974 and 100BASE-FX transceiver modules.
LXT974 is connected with the transmission end signal of AFBR-5803 by AC coupled mode, by an independent resistance net
Network provides direct current biasing to the PECL input terminals of 4 port AFBR-5803, at close AFBR-5803, the difference of sending direction
Between signal impedance matching is realized with 100 Ω resistance.
LXT974 is connected with the receiving end signal of AFBR-5803 by AC coupled mode, by an independent resistance net
Network provides direct current biasing to 4 PECL input terminals of LXT974, is used between the differential signal in direction at LXT974, is received
100 Ω resistance realize impedance matching.
AFBR-5803 is powered using 3.3V, further reduces power consumption.
Power consumption calculation：
1. the quiescent dissipation of typical circuit calculates
As shown in Figure 1, sending side resistor network power consumption：
Sending side resistor network is made of 2 69 Ω and 2 191 Ω resistance being between 5V power supplys and ground, each to return
The resistance on road is 69+191=260 Ω.
P1=2 × U2/ R=2 × 52/ 260=0.19 (W)
Receiving side resistor network power consumption：
Resistor network is made of 2 80 Ω and 2 130 Ω resistance being between 5V power supplys and ground, the electricity in each circuit
Resistance is 80+130=210 Ω.
P2=2 × U2/ R=2 × 52/ 210=0.24 (W)
Total power consumption of the typical circuit per port：
P3=P1+P2=0.19+0.24=0.43 (W)
2. the quiescent dissipation of low consumption circuit calculates
As shown in Fig. 2, being calculated by taking the power consumption of port 1 as an example, the power consumption of other 3 ports and port 1 are identical.
1) power consumption of sending side biasing resistor network：
Sending side biasing resistor network is by R3 (3.3K), and R4 (5.1K) resistance is in series, voltage 3.3V.This power consumption by
It shares 4 ports.
P4=U2/ R/4=3.32/ (3300+5100)/4=0.0003 (W)
2) sending side terminal resistance network power consumption：
Sending side terminal resistance network is by being series at two 50 Ω resistance R10, the R11 compositions sent between differential signal.
The voltage effective value of differential signal is 0.8V.
P5=U2/ R=0.82/ (50+50)=0.0064 (W)
3) power consumption of receiving side load resistor network：
Receiving side load resistor network is made of two 200 Ω resistance of R14, R15, voltage 3.7V, and power consumption is 2 resistance
The sum of power consumption.
P6=2 × U2/ R=2 × 3.72/ 200=0.14 (W)
4) power consumption of receiving side biasing resistor network：
Receiving side biasing resistor network is by R1 (3.3K), and R2 (5.1K) resistance is in series, voltage 5V.This power consumption is by 4
It shares a port.
P7=U2/ R/4=52/ (3300+5100)/4=0.0007 (W)
5) power consumption of receiving side terminal resistance network：
Receiving side terminal resistance network is made of resistance R12, R13, and principle, power consumption and sending side are identical.
P8=0.0064W.
6) total power consumption of the low consumption circuit per port：
P9=P4+P5+P6+P7+P8=0.0003+0.0064+0.14+0.0007+0.0064=0.15 (W)
3. conclusion：
Low power dissipation design can reduce power consumption 0.43-0.15=0.28 (W) per port,
Every 4 one group of fiber optic Ethernet interface can reduce power consumption 0.28*4=1.12 (W)
For possessing the substation IED or protection supervisory equipment of multiple optical ports, the present invention can significantly reduce power consumption,
So as to simplify the heat dissipation design of device, environmental suitability and operation stability are improved.
Claims (3)
1. a kind of low-power consumption fiber optic Ethernet interface of electric system protection device, it is characterised in that：Including PHY chip, optical fiber
Transceiver module, resistor network；
For the fiber optic Ethernet interface with 4 for one group, every group contains 1 PHY chip, 4 optical fiber receiver-transmitter modules, the PHY cores
Piece and the optical fiber receiver-transmitter module are coupled by the resistor network；
Pass through PECL interface inter-links between the PHY chip and 100BASE-FX transceiver modules；
The PHY chip is connected with the transmission signal of the optical fiber receiver-transmitter module by AC coupled mode, as described in independent
Resistor network provides direct current biasing to 4 PECL input terminals of the optical fiber receiver-transmitter module, close to the optical fiber receiver-transmitter module
Locate, impedance matching is realized with 100 Ω resistance between the differential signal of sending direction；
The PHY chip is connected with the reception signal of the optical fiber receiver-transmitter module by AC coupled mode, as described in independent
Resistor network provides direct current biasing to 4 PECL input terminals of the PHY chip, at the PHY chip, receives direction
Differential signal between with 100 Ω resistance realize impedance matching；
The resistor network include sending side biasing resistor network, sending side terminal resistance network, receiving side load resistor network,
Receiving side biasing resistor network, receiving side terminal resistance network；
Sending side biasing resistor network power consumption is shared by 4 PECL input terminals；
Receiving side biasing resistor network power consumption is shared by 4 PECL input terminals；
Receiving side terminal resistance network power consumption is identical with sending side.
2. low-power consumption fiber optic Ethernet interface according to claim 1, it is characterised in that：The optical fiber receiver-transmitter module uses
3.3V power supply.
3. low-power consumption fiber optic Ethernet interface according to claim 1, it is characterised in that：
Sending side biasing resistor network is by 3.3K Ω, and 5.1K Ω resistance is in series, voltage 3.3V, and power consumption is defeated by 4 PECL
Enter end to share；
Sending side terminal resistance network is made of two 50 Ω resistance between being series at transmission differential signal, the electricity of differential signal
Valid value is pressed with as 0.8V；
Receiving side load resistor network is made of two 200 Ω resistance, voltage 3.7V；
Receiving side biasing resistor network is by 3.3K Ω, and 5.1K Ω resistance is in series, voltage 5V；Power consumption is inputted by 4 PECL
It shares at end；
Receiving side terminal resistance network is made of two 50 Ω resistance between being series at differential signal, power consumption and sending side phase
Together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610179980.5A CN105871463B (en) | 2016-03-25 | 2016-03-25 | A kind of low-power consumption fiber optic Ethernet interface of electric system protection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610179980.5A CN105871463B (en) | 2016-03-25 | 2016-03-25 | A kind of low-power consumption fiber optic Ethernet interface of electric system protection device |
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| Publication Number | Publication Date |
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| CN105871463A CN105871463A (en) | 2016-08-17 |
| CN105871463B true CN105871463B (en) | 2018-07-10 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201167326Y (en) * | 2008-04-02 | 2008-12-17 | 张翠宣 | Ethernet optical fibre transceiver |
| CN103152230A (en) * | 2011-12-06 | 2013-06-12 | 扬智电子科技(上海)有限公司 | Ethernet physical layer transceiver and gain selection method of Ethernet physical layer transceiver and clock rate selection method of Ethernet physical layer transceiver |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6944404B2 (en) * | 2000-12-11 | 2005-09-13 | Harris Corporation | Network transceiver for extending the bandwidth of optical fiber-based network infrastructure |
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2016
- 2016-03-25 CN CN201610179980.5A patent/CN105871463B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201167326Y (en) * | 2008-04-02 | 2008-12-17 | 张翠宣 | Ethernet optical fibre transceiver |
| CN103152230A (en) * | 2011-12-06 | 2013-06-12 | 扬智电子科技(上海)有限公司 | Ethernet physical layer transceiver and gain selection method of Ethernet physical layer transceiver and clock rate selection method of Ethernet physical layer transceiver |
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| CN105871463A (en) | 2016-08-17 |
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