CN106685197A - Optical fiber communication interface circuit applied to modularized multi-electrical-level converter bridge arm power module - Google Patents
Optical fiber communication interface circuit applied to modularized multi-electrical-level converter bridge arm power module Download PDFInfo
- Publication number
- CN106685197A CN106685197A CN201710139149.1A CN201710139149A CN106685197A CN 106685197 A CN106685197 A CN 106685197A CN 201710139149 A CN201710139149 A CN 201710139149A CN 106685197 A CN106685197 A CN 106685197A
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- China
- Prior art keywords
- fiber optic
- optical fiber
- power model
- bridge arm
- power module
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
- H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
- H02M1/092—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices the control signals being transmitted optically
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
Abstract
The invention relates to an optical fiber communication interface circuit applied to a modularized multi-electrical-level converter bridge arm power module, which belongs to the technical field of electric automation equipment and comprises an FPGA chip, three optical fiber receivers and three optical fiber transmitters. The signal ends of the GPGA chip are connected with the monitoring circuit of the power module and are also connected with the three optical fiber receivers and three optical fiber transmitters. According to the invention, the optical fiber communication interface circuit proposed in the invention is utilized between the converter bridge arm power module and its adjacent power module, or rather, an optical fiber communication method is provided for the power module and two adjacent power modules. When the optical fiber communications of the power module and a valve controller are disrupted, the adjacent power module could continue to monitor the power module, therefore, greatly reducing the probability of circuit-trip and out-of-service of the converter caused by the fault in optical fiber communications when the power module returns to the valve controller.
Description
Technical field
The present invention relates to a kind of fiber optic data communication interface circuit for modular multilevel change of current bridge arm power model, belong to
Technical field of electric automation equipment.
Background technology
Flexible direct current transverter is typically using the modular multilevel change of current based on H bridges power model or half-bridge power module
Device (MMC transverters), is typically made up of six change of current bridge arms, and each change of current bridge arm is by N number of (N is the natural number more than 1) H bridge work(
Rate module or half-bridge power module are in series.In conventional design, each power model passes through a fiber optic receiver and one
Individual fiber optic transmitter and corresponding optical fiber and soft straight converter valve controller are communicated, and power model is by the direct current of itself
Pressure and various status signals are sent to valve control, while receiving the instruction of valve control.
In compliance DC converter design library part editor and reuse, because change of current bridge arm number of modules may be up to hundreds of, and optical fiber
Receiver and transmitter have certain fault rate, when the optical fibre channel failure of power model return information to valve control causes
Valve control receive should not power model information when, valve control can issue power model bypass instruction, but due to not knowing
Whether power model can successfully bypass, and valve control can only typically send the tripping operation stoppage in transit instruction of flexible direct current transverter, not have otherwise
The power model that success is bypassed may make failure propagation, result in greater loss.Accordingly, it would be desirable to it is higher to design a kind of reliability
Change of current bridge arm fiber optic data communication interface circuit so that when certain power model and valve control fiber optic communication failure, still there is other
Communication loop can be communicated with the power model.
The content of the invention
The purpose of the present invention is to propose to a kind of fiber optic data communication interface for modular multilevel change of current bridge arm power model
Circuit, to solve, existing flexible direct current modular multilevel change of current bridge arm power model is single to return to fiber optic communication loop reliability
Low problem, reduce causes the general of converter device tripping operation stoppage in transit because power model returns to valve control fiber optic communication failure
Rate.
Fiber optic data communication interface circuit for modular multilevel change of current bridge arm power model proposed by the present invention, including one
Individual monitoring site programmable gate array (FPGA) chip, the first fiber optic receiver, the second fiber optic receiver, the 3rd optical fiber are received
Device, the first fiber optic transmitter, the second fiber optic transmitter and the 3rd fiber optic transmitter；Described monitoring site programmable gate array
(FPGA) each signal end IO of chip is connected with the supervisory circuit in modular multilevel change of current bridge arm power model, and monitoring is existing
Signal end I1, I2, I3, O1, O2 and O3 of field programmable gate array (FPGA) chip respectively with the first fiber optic receiver, the second light
The electric signal of fine receiver, the 3rd fiber optic receiver, the first fiber optic transmitter, the second fiber optic transmitter and the 3rd fiber optic transmitter
It is connected；The optical fiber interface end RX and TX of the first fiber optic receiver and the first fiber optic transmitter are connected to flexibility by optical fiber respectively
DC converter valve control；It is many that the optical fiber interface end RL of the second fiber optic receiver is connected to adjacent left module by optical fiber
The optical fiber interface end TR of the 3rd fiber optic transmitter of level change of current bridge arm power model K-1；The optical fiber of the second fiber optic transmitter connects
Mouth end TL is connected to the 3rd fiber optic receiver of many level change of current bridge arm power model K-1 of adjacent left moduleization by optical fiber
Optical fiber interface end RR；It is how electric that the optical fiber interface end RR of the 3rd fiber optic receiver is connected to adjacent the right modularization by optical fiber
The optical fiber interface end TL of second fiber optic transmitter of flat change of current bridge arm power model K+1；The optical fiber of the 3rd fiber optic transmitter TR connects
Mouthful end is connected to second fiber optic receiver of adjacent the right modular multilevel change of current bridge arm power model K+1 by optical fiber
Optical fiber interface end RL.
Fiber optic data communication interface circuit for modular multilevel change of current bridge arm power model proposed by the present invention, its advantage
It is：Fiber optic data communication interface circuit proposed by the present invention is used between change of current bridge arm power model and adjacent power module, that is, is existed
This power model and two neighboring power model using fiber optic communication method, when there is this power model and valve control optical fiber
During the situation of communication disruption, can continue to be monitored this power model by adjacent power model, so as to greatly reduce
Because power model returns to the probability that valve control fiber optic communication failure causes converter device tripping operation to be stopped transport.
Brief description of the drawings
Fig. 1 is that the fiber optic data communication interface circuit for modular multilevel change of current bridge arm power model proposed by the present invention exists
Circuit connection diagram in flexible direct current modular multilevel change of current bridge arm.
Fig. 2 is this fiber optic data communication interface circuit for the head end power model in modular multilevel change of current bridge arm provides communication
The circuit connection diagram of interface.
Fig. 3 is this fiber optic data communication interface circuit for the end power model in modular multilevel change of current bridge arm provides communication
The circuit connection diagram of interface.
Specific embodiment
Fiber optic data communication interface circuit for modular multilevel change of current bridge arm power model proposed by the present invention, it is soft
Property many level change of current bridge arms of DC Moduleization in circuit connection diagram as shown in figure 1, including a monitoring site may be programmed gate array
Row (FPGA) chip, the first fiber optic receiver, the second fiber optic receiver, the 3rd fiber optic receiver, the first fiber optic transmitter, second
Fiber optic transmitter and the 3rd fiber optic transmitter；Each signal end IO of described monitoring site programmable gate array (FPGA) chip with
Supervisory circuit in modular multilevel change of current bridge arm power model is connected, monitoring site programmable gate array (FPGA) chip
Signal end I1, I2, I3, O1, O2 and O3 respectively with the first fiber optic receiver, the second fiber optic receiver, the 3rd fiber optic receiver,
The electric signal of the first fiber optic transmitter, the second fiber optic transmitter and the 3rd fiber optic transmitter is connected；First fiber optic receiver and
The optical fiber interface end RX and TX of the first fiber optic transmitter are connected to flexible direct current change of current valve control and (are drawn in figure by optical fiber respectively
Show)；The optical fiber interface end RL of the second fiber optic receiver is connected to many level converter bridges of adjacent left moduleization by optical fiber
The optical fiber interface end TR of the 3rd fiber optic transmitter of arm power model K-1；The optical fiber interface end TL of the second fiber optic transmitter passes through
Optical fiber is connected to the optical fiber interface of the 3rd fiber optic receiver of many level change of current bridge arm power model K-1 of adjacent left moduleization
End RR；The optical fiber interface end RR of the 3rd fiber optic receiver is connected to adjacent the right modular multilevel change of current bridge arm by optical fiber
The optical fiber interface end TL of second fiber optic transmitter of power model K+1；The optical fiber interface end of the 3rd fiber optic transmitter TR passes through light
Fibre is connected to the optical fiber interface end of second fiber optic receiver of adjacent the right modular multilevel change of current bridge arm power model K+1
RL。
As shown in figure 1, power model 1 is to any one power model K in power model N in modular multilevel change of current bridge arm
Fiber optic data communication interface circuit composition block diagram.It is power model K in the present invention in figure, in the dotted line frame below power model K
Fiber optic data communication interface circuit composition block diagram.
It is that fiber optic data communication interface circuit of the invention is the head end power mould in modular multilevel change of current bridge arm shown in Fig. 2
Block provides the circuit connection diagram of communication interface.The figure shows the power model of the leftmost side in modular multilevel change of current bridge arm
The composition block diagram of the fiber optic data communication interface circuit of (power model 1).In figure, in the fiber optic data communication interface circuit of power model 1
The optical fiber interface end RX and TX of the first fiber optic receiver and the first fiber optic transmitter are connected to flexible direct current and change by optical fiber respectively
Stream valve control；The optical fiber interface end RR of the 3rd fiber optic receiver of power model 1 is connected to adjacent the right work(by optical fiber
The optical fiber interface end TL of the second fiber optic transmitter of rate module 2；The optical fiber interface end of the 3rd fiber optic transmitter TR of power model 1
The optical fiber interface end RL of the second fiber optic receiver of adjacent the right power model 2 is connected to by optical fiber；The of power model 1
The optical fiber interface end RL of two fiber optic receivers and the optical fiber interface end TL of the second fiber optic transmitter are hanging.
It is that fiber optic data communication interface circuit of the invention is the end power mould in modular multilevel change of current bridge arm shown in Fig. 3
Block provides the circuit connection diagram of communication interface.The figure shows the power model of the rightmost side in modular multilevel change of current bridge arm
The composition block diagram of the fiber optic data communication interface circuit of (power model N).In figure, in the fiber optic data communication interface circuit of power model N
The optical fiber interface end RX and TX of the first fiber optic receiver and the first fiber optic transmitter are connected to flexible direct current and change by optical fiber respectively
Stream valve control；The optical fiber interface end RL of second fiber optic receiver of power model N is connected to adjacent left side work(by optical fiber
The optical fiber interface end TR of the 3rd fiber optic transmitter of rate module N-1；The optical fiber interface of the second fiber optic transmitter TL of power model N
Hold the optical fiber interface end RR of the 3rd fiber optic receiver that adjacent left side power model N-1 is connected to by optical fiber；Power model N
The 3rd fiber optic receiver optical fiber interface end RR and the 3rd fiber optic transmitter optical fiber interface end TR it is hanging.
The operation principle of the fiber optic data communication interface circuit of modular multilevel change of current bridge arm power model proposed by the present invention
It is：The optical fiber interface end RX and TX of the first fiber optic receiver and the first fiber optic transmitter are connected to flexible direct current by optical fiber respectively
The DC voltage of itself and various status signals are sent to valve control by change of current valve control, power model K, while receiving valve
The instruction of controller.To the change of current bridge arm connected with N number of power model, from power model 2 to power model N-1, work as power
Communication failure between first fiber optic receiver or the first fiber optic transmitter and flexible direct current change of current valve control of module K
When, power model K can be communicated by the second fiber optic receiver and the second fiber optic transmitter and power model K-1, so as to pass through
The DC voltage of itself and various status signals are sent to valve control by power model K-1, while passing through power model K-1
To receive the instruction of valve control, power model K again can be by the 3rd fiber optic receiver and the 3rd fiber optic transmitter and power
Module K+1 communicates, so as to the DC voltage of itself and various status signals are sent into valve control by power model K+1
Device, while receiving the instruction of valve control by power model K+1.When the first fiber optic receiver of power model 1 or first
During communication failure between fiber optic transmitter and flexible direct current change of current valve control, power model 1 can be by the 3rd light
Fine receiver and the 3rd fiber optic transmitter and power model 2 communicate, so as to by power model 2 by the DC voltage of itself and
Various status signals are sent to valve control, while receiving the instruction of valve control by power model 2.As power model N
The first fiber optic receiver or during communication failure between the first fiber optic transmitter and flexible direct current change of current valve control, work(
Rate module N can be communicated by the second fiber optic receiver and the second fiber optic transmitter and power model N-1, so as to pass through power mould
The DC voltage of itself and various status signals are sent to valve control by block N-1, while being received by power model N-1
The instruction of valve control.Therefore, the communication reliability between any power model and flexible direct current change of current valve control is obtained
Increase substantially.
Present invention can apply to the voltage source converter that other species have power model series connection, such as chain type voltage source converter
Device.
Above example is one of the invention specific implementing circuit schematic diagram, does not limit guarantor of the invention with this
Shield scope.Any equivalent transformation circuit made based on the present invention, belongs to the scope of the present invention.
Claims (1)
1. a kind of fiber optic data communication interface circuit for modular multilevel change of current bridge arm power model, it is characterised in that including
Individual monitoring site programmable gate array chip, the first fiber optic receiver, the second fiber optic receiver, the 3rd fiber optic receiver, first
Fiber optic transmitter, the second fiber optic transmitter and the 3rd fiber optic transmitter；Described monitoring site programmable gate array chip it is each
Signal end IO is connected with the supervisory circuit in modular multilevel change of current bridge arm power model, monitoring site programmable gate array
Signal end I1, I2, I3, O1, O2 and O3 of chip connect with the first fiber optic receiver, the second fiber optic receiver, the 3rd optical fiber respectively
The electric signal for receiving device, the first fiber optic transmitter, the second fiber optic transmitter and the 3rd fiber optic transmitter is connected；First optical fiber is received
The optical fiber interface end RX and TX of device and the first fiber optic transmitter are connected to flexible direct current change of current valve control by optical fiber respectively；The
The optical fiber interface end RL of two fiber optic receivers is connected to many level change of current bridge arm power moulds of adjacent left moduleization by optical fiber
The optical fiber interface end TR of the 3rd fiber optic transmitter of block K-1；The optical fiber interface end TL of the second fiber optic transmitter is connected by optical fiber
To the optical fiber interface end RR of the 3rd fiber optic receiver of many level change of current bridge arm power model K-1 of adjacent left moduleization；The
The optical fiber interface end RR of three fiber optic receivers is connected to adjacent the right modular multilevel change of current bridge arm power mould by optical fiber
The optical fiber interface end TL of second fiber optic transmitter of block K+1；The optical fiber interface end of the 3rd fiber optic transmitter TR is connected by optical fiber
To the optical fiber interface end RL of second fiber optic receiver of adjacent the right modular multilevel change of current bridge arm power model K+1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710139149.1A CN106685197A (en) | 2017-03-09 | 2017-03-09 | Optical fiber communication interface circuit applied to modularized multi-electrical-level converter bridge arm power module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710139149.1A CN106685197A (en) | 2017-03-09 | 2017-03-09 | Optical fiber communication interface circuit applied to modularized multi-electrical-level converter bridge arm power module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106685197A true CN106685197A (en) | 2017-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710139149.1A Pending CN106685197A (en) | 2017-03-09 | 2017-03-09 | Optical fiber communication interface circuit applied to modularized multi-electrical-level converter bridge arm power module |
Country Status (1)
| Country | Link |
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| CN (1) | CN106685197A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111327119A (en) * | 2020-04-03 | 2020-06-23 | 全球能源互联网研究院有限公司 | Communication system and communication method for valve base control system and converter valve |
| CN111371663A (en) * | 2020-03-03 | 2020-07-03 | 南京南瑞继保电气有限公司 | Ring network communication system and communication method for multi-level converter control system |
| CN114094614A (en) * | 2020-08-24 | 2022-02-25 | 许继集团有限公司 | MMC flexible direct-current transmission converter valve submodule bypass switch redundancy control device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203859526U (en) * | 2014-03-31 | 2014-10-01 | 南方电网科学研究院有限责任公司 | Modular multi-level converter with dual static var compensators |
| CN105915076A (en) * | 2016-05-19 | 2016-08-31 | 东南大学 | Modular multi-level current converter and control method thereof |
| CN205787731U (en) * | 2016-05-23 | 2016-12-07 | 南方电网科学研究院有限责任公司 | Controller and control system for MMC |
-
2017
- 2017-03-09 CN CN201710139149.1A patent/CN106685197A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203859526U (en) * | 2014-03-31 | 2014-10-01 | 南方电网科学研究院有限责任公司 | Modular multi-level converter with dual static var compensators |
| CN105915076A (en) * | 2016-05-19 | 2016-08-31 | 东南大学 | Modular multi-level current converter and control method thereof |
| CN205787731U (en) * | 2016-05-23 | 2016-12-07 | 南方电网科学研究院有限责任公司 | Controller and control system for MMC |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111371663A (en) * | 2020-03-03 | 2020-07-03 | 南京南瑞继保电气有限公司 | Ring network communication system and communication method for multi-level converter control system |
| CN111327119A (en) * | 2020-04-03 | 2020-06-23 | 全球能源互联网研究院有限公司 | Communication system and communication method for valve base control system and converter valve |
| CN114094614A (en) * | 2020-08-24 | 2022-02-25 | 许继集团有限公司 | MMC flexible direct-current transmission converter valve submodule bypass switch redundancy control device and method |
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