CN105871463A - Optical fibre Ethernet interface with low power consumption for power system protection device - Google Patents
Optical fibre Ethernet interface with low power consumption for power system protection device Download PDFInfo
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- CN105871463A CN105871463A CN201610179980.5A CN201610179980A CN105871463A CN 105871463 A CN105871463 A CN 105871463A CN 201610179980 A CN201610179980 A CN 201610179980A CN 105871463 A CN105871463 A CN 105871463A
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- power consumption
- resistor network
- resistance
- phy chip
- ethernet interface
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 26
- 239000000835 fiber Substances 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 241000272814 Anser sp. Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect 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
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- 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 the field of automatic systems of intelligent substations, and in particular relates to an optical fibre Ethernet interface with low power consumption for a power system protection device. The optical fibre Ethernet interfaces comprises a PHY chip, optical fibre transceiving modules and a resistance network; four optical fibre Ethernet interfaces form one set; each set comprises one PHY chip and four optical fibre transceiving modules; and the PHY chip is coupled to the optical fibre transceiving modules through the resistance network. The independent resistance network in the invention provides direct-current bias for PECL input ends at four ports; therefore, the resistance networks of various ports are saved; furthermore, the resistance network with low power consumption is adopted in an interface circuit; the power consumption is obviously reduced; heat dissipation design is simplified easily; and the equipment reliability is improved.
Description
Technical field
The invention belongs to automatic system of intelligent transformer station field, particularly relate to the low-power consumption light of a kind of electric system protection device
Fine Ethernet interface.By optimizing fiber optic Ethernet Interface design, reduce resistor network power consumption, simplify heat radiation facility, improve
Equipment operational reliability.
Background technology
Intelligent substation typically with three layer of two web frame, three layers, it may be assumed that station level, wall, process layer；Two nets,
That is: process layer-wall network, wall-station level network.Process layer-wall network is divided into again GOOSE net and SV
Net, the two network can separately can also common network.Process layer-wall network all uses fiber optic Ethernet, for improving net
Network reliability all uses double-network redundant to design.
Smart machine (IED) in intelligent substation including: the intelligent terminal of process layer primary equipment, intelligent assembly, interval
The automation equipments such as layer, protection in station level, observing and controlling, automatic closing.
Q/GDW 441-2009 " intelligent substation Protection Technology specification " specifies: protection should directly be sampled, for separate room
Every protection should directly trip, the protection relating to multi-compartment is the most directly tripped.For relating to the protection of multi-compartment, must as truly having
Using other wavy trajectory, relevant device should meet protection to reliability and the requirement of rapidity.Directly sampling refers to intelligence
Directly carry out sampled value transmission between electronic equipment (IED) without Ethernet switch with point-to-point interconnection, directly trip
Refer to directly carry out with point-to-point interconnection between IED the transmission of breaker tripping and closing signal without Ethernet switch.
Directly adopt the straight network interface quantity jumped and be added significantly to protection device and other smart machines.Intelligent terminal and protection supervisory equipment
Need to configure more fiber optic Ethernet interface, generally comprise: the active and standby network interface of GOOSE, the active and standby network interface of SV, station level master
Standby network interface, and directly adopt the special network interface of straight jumping etc..The most up to more than 10 network interfaces of some equipment, fiber optic Ethernet interface merit
Consumption is relatively big, brings sizable caloric value to equipment, generally requires and open louvre on cabinet or the most cashier's office in a shop install work
Industry air-conditioning or other heat dissipation equipments.Reducing the degree of protection of device thus, manufacture and the maintenance cost of outdoor cabinet are the biggest
Big raising.
At present, what optical module was recommended mostly is PECL/LVPECL direct-current coupling coupling, and this match circuit is at protocol conversion core
When the input of sheet, output interface level are PECL/LVPECL level, just can normal work as long as choosing correct resistance value
Make.
PECL is when AC coupled exports the terminator of 50 Ω, and the outfan of PECL to be considered adds a direct current biased electrical
Resistance, provides correct direct current biasing and terminal impedance coupling at input.
Fig. 1 is the LXT974 typical optical fiber interface circuit figure as a example by a port.Interface level is PECL, 5V voltage
Power supply.Use AC coupled in sending side, optical module input uses Dai Weinan equivalent resistance network to provide 3.7V direct current biasing
With 50 Ω impedance matchings.Direct-current coupling, same employing Dai Weinan equivalent resistance network is used to provide 3.0V direct current inclined receiving side
Put and 50 Ω impedance matchings.
Typical circuit can provide good communication performance, but fiber optic Ethernet interface is the power consumption rich and influential family of whole smart machine.
The power consumption reducing this link is significant to improving equipment dependability.
Summary of the invention
For problems of the prior art, the present invention proposes the low-power consumption fiber optic Ethernet of a kind of electric system protection device and connects
Mouthful.In interface circuit, have employed low power consumption resistance network, significantly reduce power consumption, be conducive to simplifying heat dissipation design, carry
High equipment dependability.
This interface is made up of PHY chip, optical fiber receiver-transmitter module, resistor network etc., it is characterised in that the most what time:
Fiber optic Ethernet interface is one group with 4, and often group is containing 1 PHY chip, 4 optical fiber receiver-transmitter modules, PHY chip
Coupled by resistor network with optical fiber receiver-transmitter module.
By PECL interface inter-link between PHY chip and 100BASE-FX transceiver module.Optical fiber receiver-transmitter module uses 3.3V
Power supply.
The transmission signal of PHY chip and optical fiber receiver-transmitter module is connected by AC coupled mode, independent resistor network give
4 PECL inputs of PHY chip provide direct current biasing, at close PHY chip, between the differential signal of sending direction
Impedance matching is realized with 100 Ω resistance.
The reception signal of PHY chip and optical fiber receiver-transmitter module is connected by AC coupled mode, independent resistor network give
4 PECL inputs of PHY chip provide direct current biasing, at described PHY chip, receive the difference letter in direction
Impedance matching is realized with 100 Ω resistance between number.
Resistor network includes sending side biasing resistor network, sending side terminal resistance network, receives lateral load resistor network, reception
Lateral deviation puts resistor network；
Sending side biasing resistor network is made up of 3.3K Ω, 5.1K Ω resistant series, and voltage is 3.3V, and power consumption is by 4 PECL
Input is shared；
Sending side terminal resistance network is constituted by being series at two the 50 Ω resistance sent between differential signal, the electricity of differential signal
Being pressed with valid value is 0.8V；
Receiving lateral load resistor network to be made up of two 200 Ω resistance, voltage is 3.7V；
Reception lateral deviation is put resistor network and is made up of 3.3K Ω, 5.1K Ω resistant series, and voltage is 5V；Power consumption is by 4 PECL
Input is shared；
Receive lateral terminal resistor network to be made up of two the 50 Ω resistance being series between differential signal, principle, power consumption and transmission
Side is identical.
The present invention uses AC coupled, separates to reduce power consumption with the biasing networks of input by the terminal match circuit of transmission line.
For the design of intelligent apparatus in transformer station, owing to PHY chip and the optical module distance on PCB is close, use this
Scheme does not affect performance.
The beneficial effect of the program: for having substation IED or the protection supervisory equipment of multiple light mouth, the present invention uses
Independent resistor network provides direct current biasing to the PECL input of 4 ports, eliminates the resistor network of each port, can
To significantly reduce power consumption, be conducive to simplifying heat dissipation design, improve system stability and safety.Improve equipment dependability.This
Invention is particularly suited for fiber optic Ethernet interface quantity device more than 4.
Accompanying drawing explanation
Fig. 1 is the typical optical fiber interface schema of existing High Speed ICs chip.
Fig. 2 is the low-power consumption optical fiber interface figure of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further illustrated with accompanying drawing, and the content that embodiment is mentioned is not to the present invention's
Limit.
Fig. 2 is the design circuit diagram of the low-power consumption optical fiber interface of 4 ports, has independent reception side and the biasing net of sending side
Network, provides input biasing to the port of 4 group.Send and receive signal and all have employed AC coupled, and series terminal
Match circuit.
Every 4 of the fiber optic Ethernet interface of the present embodiment is one group, often organizes and contains a piece of LXT974 4 port PHY chip, 4
AFBR-5803 optical fiber receiver-transmitter module, is coupled by resistor network therebetween.
By PECL interface inter-link between LXT974 4 port PHY chip and 100BASE-FX transceiver module.
The transmitting terminal signal of LXT974 and AFBR-5803 is connected by AC coupled mode, an independent resistor network give
The PECL input of 4 port AFBR-5803 provides direct current biasing, at close AFBR-5803, and the difference of sending direction
Impedance matching is realized with 100 Ω resistance between sub-signal.
The receiving end signal of LXT974 and AFBR-5803 is connected by AC coupled mode, an independent resistor network give
4 PECL inputs of LXT974 provide direct current biasing, at LXT974, receive and use between the differential signal in direction
100 Ω resistance realize impedance matching.
AFBR-5803 uses 3.3V to power, and reduces power consumption further.
Power consumption calculation:
1. the quiescent dissipation of typical circuit calculates
As it is shown in figure 1, sending side resistor network power consumption:
Sending side resistor network is made up of 2 69 Ω being between 5V power supply and ground and 2 191 Ω resistance, the electricity in each loop
Resistance is 69+191=260 Ω.
P1=2 × U2/ R=2 × 52/ 260=0.19 (W)
Reception side resistance network power consumption:
Resistor network is made up of 2 80 Ω being between 5V power supply and ground and 2 130 Ω resistance, and the resistance in each loop is
80+130=210 Ω.
P2=2 × U2/ R=2 × 52/ 210=0.24 (W)
The total power consumption of the every port of typical circuit:
P3=P1+P2=0.19+0.24=0.43 (W)
2. the quiescent dissipation of low consumption circuit calculates
As in figure 2 it is shown, calculate as a example by the power consumption of port 1, the power consumption of other 3 ports is identical with port 1.
1) power consumption of sending side biasing resistor network:
Sending side biasing resistor network is made up of R3 (3.3K), R4 (5.1K) resistant series, and voltage is 3.3V.This power consumption is by 4
Individual port is shared.
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 constituted by being series at two the 50 Ω resistance R10, R11 sent between differential signal.Difference is believed
Number voltage effective value be 0.8V.
P5=U2/ R=0.82/ (50+50)=0.0064 (W)
3) power consumption of reception lateral load resistor network:
Receiving lateral load resistor network to be made up of two 200 Ω resistance of R14, R15, voltage is 3.7V, and power consumption is 2 resistance power consumptions
Sum.
P6=2 × U2/ R=2 × 3.72/ 200=0.14 (W)
4) receive lateral deviation and put the power consumption of resistor network:
Reception lateral deviation is put resistor network and is made up of R1 (3.3K), R2 (5.1K) resistant series, and voltage is 5V.This power consumption is by 4
Port is shared.
P7=U2/ R/4=52/ (3300+5100)/4=0.0007 (W)
5) power consumption of reception lateral terminal resistor network:
Receiving lateral terminal resistor network to be made up of resistance R12, R13, its principle, power consumption are identical with sending side.
P8=0.0064W.
6) total power consumption of the every port of low consumption circuit:
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, every port can reduce power consumption 0.43-0.15=0.28 (W),
The fiber optic Ethernet interface of every 4 one group can reduce power consumption 0.28*4=1.12 (W)
For having substation IED or the protection supervisory equipment of multiple light mouth, the present invention can significantly reduce power consumption, thus simplify
The heat dissipation design of device, improves environmental suitability and operation stability.
Claims (6)
1. the low-power consumption fiber optic Ethernet interface of an electric system protection device, it is characterised in that: include PHY chip,
Optical fiber receiver-transmitter module, resistor network；
Described fiber optic Ethernet interface is one group with 4, often organizes and contains 1 PHY chip, and 4 optical fiber receiver-transmitter modules are described
PHY chip and described optical fiber receiver-transmitter module are coupled by described resistor network.
Low-power consumption fiber optic Ethernet interface the most according to claim 1, it is characterised in that: described PHY chip and
By PECL interface inter-link between 100BASE-FX transceiver module.
Low-power consumption fiber optic Ethernet interface the most according to claim 1, it is characterised in that: described PHY chip and institute
The transmission signal stating optical fiber receiver-transmitter module is connected by AC coupled mode, independent described resistor network receive to described optical fiber
4 the PECL inputs sending out module provide direct current biasing, at close described optical fiber receiver-transmitter module, and the difference of sending direction
Impedance matching is realized with 100 Ω resistance between signal.
Low-power consumption fiber optic Ethernet interface the most according to claim 1, it is characterised in that: described PHY chip and institute
The reception signal stating optical fiber receiver-transmitter module is connected by AC coupled mode, independent described resistor network give described PHY core
4 PECL inputs of sheet provide direct current biasing, at described PHY chip, receive and use between the differential signal in direction
100 Ω resistance realize impedance matching.
Low-power consumption fiber optic Ethernet interface the most according to claim 1, it is characterised in that: described optical fiber receiver-transmitter module is adopted
Power with 3.3V.
Low-power consumption fiber optic Ethernet interface the most according to claim 1, it is characterised in that: described resistor network includes sending out
Send lateral deviation put resistor network, sending side terminal resistance network, receive lateral load resistor network, receive lateral deviation put resistor network,
Receive lateral terminal resistor network；
Sending side biasing resistor network is made up of 3.3K Ω, 5.1K Ω resistant series, and voltage is 3.3V, and power consumption is by 4 PECL
Input is shared；
Sending side terminal resistance network is constituted by being series at two the 50 Ω resistance sent between differential signal, the electricity of differential signal
Being pressed with valid value is 0.8V；
Receiving lateral load resistor network to be made up of two 200 Ω resistance, voltage is 3.7V；
Reception lateral deviation is put resistor network and is made up of 3.3K Ω, 5.1K Ω resistant series, and voltage is 5V；Power consumption is by 4 PECL
Input is shared；
Receiving lateral terminal resistor network to be made up of two the 50 Ω resistance being series between differential signal, power consumption is identical with sending side.
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105871463A true CN105871463A (en) | 2016-08-17 |
| CN105871463B CN105871463B (en) | 2018-07-10 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020071159A1 (en) * | 2000-12-11 | 2002-06-13 | Harris Corporation | Network transceiver for extending the bandwidth of optical fiber-based network infrastructure |
| 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 |
-
2016
- 2016-03-25 CN CN201610179980.5A patent/CN105871463B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020071159A1 (en) * | 2000-12-11 | 2002-06-13 | Harris Corporation | Network transceiver for extending the bandwidth of optical fiber-based network infrastructure |
| 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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| Publication number | Publication date |
|---|---|
| CN105871463B (en) | 2018-07-10 |
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