CN106646207A - Platform and method for testing reliability of DC transmission converter valve optical coupling module receiving circuit - Google Patents
Platform and method for testing reliability of DC transmission converter valve optical coupling module receiving circuit Download PDFInfo
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- CN106646207A CN106646207A CN201510725808.0A CN201510725808A CN106646207A CN 106646207 A CN106646207 A CN 106646207A CN 201510725808 A CN201510725808 A CN 201510725808A CN 106646207 A CN106646207 A CN 106646207A
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Abstract
The invention relates to a platform and method for testing the reliability of a DC transmission converter valve optical coupling module receiving circuit. The test platform comprises a power supply system, an optical coupling module online packaging platform and a signal monitoring module. The power supply system powers all optical receiving circuits of a fixed coupling module. An optical coupling module receiving circuit is installed on the online packaging platform. The signal monitoring module includes an FPGA microcontroller and a matching circuit. A microcontroller simulator can connect a FPGA to a computer and display on a computer screen an acquired electrical signal waveform. It can be judged, by comparing the acquired electrical signal waveform with waveform parameters such as the duty ratio of a standard light source signal, whether the receiving optical power of the optical receiving circuit is within a qualified range. The optical coupling module is assembled to a valve-based electronic device optical transceiver board and then participates in high-temperature and low-temperature environment screening test of the transceiver board. The optical coupling module receiving circuit, in the test, is also in the above test state and runs for a long time to realize the overall evaluation of all the components of the optical receiving circuit and elimination of the early failure components, thus improving the overall reliability of the optical coupling module.
Description
Technical field
The present invention relates to direct-current transmission converter valve test platform and its method of testing, and in particular to a kind of direct-current transmission converter valve optocoupler
Matched moulds block receives loop reliability testing platform and method of testing.
Background technology
Converter valve is the nucleus equipment of DC transmission system.Valve base electronic device realize the triggering to converter valve whole IGCT level and
Monitoring and protecting function, can the stability and reliability of its work are directly connected to DC transmission system normal table operation.Optocoupler
Matched moulds block is optica signal receivingl transmitting apparatus important on valve base electronic device.Valve base electronic device is realized and the change of current by optical coupler module
IGCT triggers correspondingly the function with monitoring and protecting on valve.Due to extra-high voltage direct-current transmission engineering usually contain it is at least hundreds of
Or even thousands of IGCT levels, and to there is up to a hundred optical coupler modules.Light-receiving passage total amount therein reaches thousands of.Appoint
The damage of what light-receiving passage can all directly result in correspondence IGCT level and can not trigger, and may cause IGCT level failure,
Operation normal to DC engineering threatens.For DC transmission engineering, IGCT level failure is the impaired event of visual plant, one
Denier exceedes redundancy quantity, it is necessary to which trip interruption maintenance, and economic loss is with hundred million yuan of calculating.
Due to the restriction of valve base electronic device volume, optical coupler module has the spy that small volume, integrated level are high, operation caloric value is big
Point.How to improve operational reliability of the optical coupler module light-receiving loop under this specific environment is direct current transportation both at home and abroad at present
The research emphasis of technical field.
Due to valve base electronic device volumetric constraint, the characteristics of optical coupler module has small volume, integrated level is high.Size for it is wide not
18 road photo-signal channels are integrated with 10 centimetres of foot, the high module less than 1.5 centimetres.Due to module machining accuracy restriction and
Integrated level height causes the reason for assembling difficulty, and optical coupler module light-receiving loop often occurs that receiving power is little to cause transmission signal abnormal
Become, problem of poor reliability short with service life.
The content of the invention
To solve above-mentioned deficiency of the prior art, it is an object of the invention to provide a kind of direct-current transmission converter valve optical coupler module connects
Road reliability testing platform and method of testing are withdrawn, by this method from the control of optical coupler module packaging technology and reliability testing two
Aspect lifts optical coupler module light-receiving loop reliability.
The purpose of the present invention is realized using following technical proposals：
The present invention provides a kind of converter valve optical coupler module and receives loop reliability testing platform, and it is theed improvement is that, the survey
Examination platform include power-supply system, the online package platforms of optical coupler module and signal monitoring module, the resistance in the power-supply system with
Optical coupler module connects, and the optical coupler module of the online package platforms of the optical coupler module receives loop and is connected with signal monitoring module.
Further, the power-supply system is made up of the resistant series of 5V dc sources and 100 Ω, and pin is made at power-supply system two ends
Pipe export head is powered so that winding displacement both positive and negative polarity is inserted to light receiving diode；Wherein each Light-Emitting Diode passes through a needle tubing
Export head is connected with power-supply system, and No. 1 pin of diode connects the positive pole of power-supply system, and No. 3 pins of diode are electricity
Source negative pole, No. 2 pins of diode are incorporated into the fpga chip of signal monitoring module as the signal after opto-electronic conversion.
Further, the online package platforms of the optical coupler module include fixing tool and optical coupler module hole slot, optical coupler module
It is fixed on fixing tool, light receiving diode is installed in optical coupler module correspondence hole slot, optical coupler module and light-receiving two
Pole pipe constitutes optical coupler module and receives loop；Optical coupler module receive loop by decaying to≤150 meters of 2db of optical fiber with
Signal monitoring module connects, and signal monitoring module includes a piece of FPGA microcontrollers and support circuit；Emulated by microcontroller
Fpga chip is connected to computer and shows on computer screen the electric signal waveform of acquisition by device；By the duty with light signal
Judge light-receiving loop received optical power whether in acceptability limit than waveform parameter contrast.
The present invention also provides a kind of application optical coupler module and receives the method for testing that reliability testing platform in loop is tested, and it changes
It is that methods described comprises the steps to enter part：
Step one：Assembling optical coupler module receives loop；
Step 2：Test optical coupler module is received back to road reliability.
Further, the assembling optical coupler module of the step one receives loop and includes：
Optical coupler module is fixed on fixing tool, light receiving diode is installed in optical coupler module correspondence hole slot；
Power-supply system is powered to light receiving diode, using decaying to≤150 meters of 2db of optical fiber is by light receiving diode
Optical signal transmission is into signal monitoring module；
Fpga chip is connected to by computer by microcontroller simulator and the electric signal waveform of acquisition is shown on computer screen；
By may determine that light-receiving loop received optical power whether in acceptability limit with the contrast of the waveform parameter such as the dutycycle of light signal
It is interior；
The glue on point around light receiving diode, natural package curing does not use incubator to dry；In the curing process, no
Touching optical receiver and its holding wire, it is ensured that the optical receiver position after adjustment is constant；
Repetition measurement is carried out to the light receiving power that optical coupler module receives loop after the completion of solidification, entering back into after confirmation luminous power is qualified can
Link is tested by property.
Further, the test optical coupler module of the step 2 is received back to road reliability includes：
Inspection optical coupler module outward appearance is lossless to guarantee optical coupler module light-receiving loop；
It is optically coupled module and receives the test of loop photosignal waveform：Optical coupler module is assembled into valve base electronic device Optical Transceiver Card card
Optical Transceiver Card card is tested and is failed after upper screening, carry out final electric performance test after luminous power test and detect defective work.
Further, test bag is carried out to Optical Transceiver Card card containing optical coupler module in interior valve base electronic device Optical Transceiver Card electrical testing
It is at normal temperatures to the globality functional test of valve base electronic device function；Wherein related to photo-coupler functions of modules test is
Interactive signal self-checking；In interactive signal self-checking to optical coupler module light reception device incoming frequency be 1MHz, amplitude
For the standard testing pulse signal that 5VDC, dutycycle are 50%, the electric signal after optical coupler module receives loop conversion
In being connected to the FPGA integrated chips of Optical Transceiver Card；FPGA integrated chips program is to receiving after optical receiver conversion
The frequency of electric signal, three parameters of amplitude and dutycycle carry out self-inspection test；Fpga chip sequential monitoring is taken office in test
What parameter is unqualified, can send corresponding warning message, points out Optical Transceiver Card failure；Failure screening is under special environment condition
The electrical testing that valve base electronic device Optical Transceiver Card is carried out；Method of testing and criterion are identical with electric test method under normal temperature；Difference
It is temperature, humidity, the duration difference of experimental enviroment；Its objective is, by changing device running environment parameter, to accelerate device
Aging process, enters to the initial failure less than life expectancy caused by device manufacturing process itself or packaging technology existing defects
Row is screened in advance；Screening test project includes：High temperature screening, low temperature screening and temperature cycles screening content.
The excellent effect that has of technical scheme that the present invention is provided is：
1) receiving loop packaging technology using the optical coupler module of the present invention can be accurately controlled in conjunction by light-receiving channel reception power
In the range of lattice, the optical power difference opposite sex is rejected, the overall optical coupler module that improves receives loop optical power efficiency.
2) it is less than using crash rate of the optical coupler module light-receiving loop in engineer applied after the reliability test method of the present invention
0.025%, reliability is very high.
3) the procedure operation in the screening process of high-volume optical coupler module light-receiving loop can be realized using this method, so as to save
About manpower, and the phenomenon of forgo artificial false retrieval, missing inspection.
4) powered using the power-supply system in invention, on the basis of the complete external characteristics in optical coupler module light-receiving loop is obtained, can be with
Substantially reduce the risk that operating personnel are shocked by electricity.
Description of the drawings
Fig. 1 is the Coupler Module light-receiving power loop test philosophy figure that the present invention is provided.
Specific embodiment
The specific embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
The following description and drawings fully illustrate specific embodiments of the present invention, to enable those skilled in the art to put into practice it
.Other embodiments can include structure, logic, it is electric, process and it is other changes.Embodiment only generation
The possible change of table.Unless explicitly requested, otherwise single component and function are optional, and the order for operating can change.
The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.The enforcement of the present invention
The scope of scheme includes the gamut of claims, and all obtainable equivalent of claims.Herein,
These embodiments of the present invention individually or generally can be represented with term " invention " that this is used for the purpose of facilitating, and
And if in fact disclosing the invention more than, the scope for being not meant to automatically limit the application is any single invention or sends out
Bright design.
The present invention provides a kind of converter valve optical coupler module and receives loop reliability testing platform, and the test platform includes power supply system
System, the online package platforms of optical coupler module and signal monitoring module, the resistance in the power-supply system is connected with optical coupler module,
The optical coupler module of the online package platforms of the optical coupler module receives loop and is connected with signal monitoring module.As shown in figure 1, first
Power-supply system is first passed through to the whole light-receiving loop power supplies on the coupling module that fixes, and by the signal after opto-electronic conversion
Monitoring modular.Wherein：Power-supply system is made up of the resistant series of a 5V dc source and 100 Ω, and power-supply system two ends are made
Needle tubing export head is powered so that winding displacement both positive and negative polarity is inserted to light receiving diode；Online package platforms are whole production test frocks
Core, wherein each Light-Emitting Diode is connected by a needle tubing export head with power-supply system, and No. 1 of diode is drawn
Pin connects the positive pole of power-supply system, and No. 3 pins of diode are power cathode, after No. 2 pins of diode are as opto-electronic conversion
Signal be incorporated into the fpga chip of signal monitoring module, frequency be 1MHz, amplitude be 5VDC, dutycycle be 50%
Standard testing optical coupler module light-receiving be input to by 150 meters of optical fiber (attenuation rate is≤2db) with pulse signal return
Road.
Fpga chip can be connected to computer and show on computer screen the electric signal waveform of acquisition by microcontroller simulator,
Whether the model parameter that receives optical signal by detection is qualified judging that light-receiving passage is whether normal, and concrete criterion includes waveform
Impulse- free robustness, frequency zero deflection, dutycycle are between 45% to 65%.The test by more than can be connect with equivalent simulation optical coupler module
Withdraw true operating condition of the road in engineering operation.Optical coupler module is participated in after being assembled on valve base electronic device Optical Transceiver Card card
The environmental screenings such as high temperature, the low temperature of Optical Transceiver Card card are tested.Optical coupler module light-receiving loop is similarly in above-mentioned test in test
State and longtime running, can realize that the overall of light-receiving loop whole components and parts is examined, rejects initial failure element with this
Purpose, so as to improve optical coupler module global reliability.
It is at normal temperatures in interior valve base electronic device Optical Transceiver Card electrical testing that test bag is carried out to Optical Transceiver Card card containing optical coupler module
Globality functional test to valve base electronic device function；Wherein related to photo-coupler functions of modules test be interactive signal from
Detection examination；In interactive signal self-checking to optical coupler module light reception device incoming frequency be 1MHz, amplitude be 5VDC,
Dutycycle is 50% standard testing pulse signal, and the electric signal after optical coupler module receives loop conversion is connected to light and receives
In sending out the FPGA integrated chips of plate；The frequency of electric signal through optical receiver conversion after of the FPGA integrated chips program to receiving
Rate, amplitude and dutycycle three parameters carry out self-inspection test；Fpga chip sequential monitoring does not conform to any parameter in test
Lattice can then send corresponding warning message, point out Optical Transceiver Card failure；Failure screening is to valve-based electronics under special environment condition
The electrical testing that equipment Optical Transceiver Card is carried out；Method of testing and criterion are identical with electric test method under normal temperature；Difference is experimental enviroment
Temperature, humidity, duration it is different；Its objective is, by changing device running environment parameter, to accelerate the process of device aging,
The initial failure less than life expectancy caused by device manufacturing process itself or packaging technology existing defects is screened in advance；
Screening test project includes：High temperature screening, low temperature screening and temperature cycles screening content.
The present invention proposes one kind for lifting direct-current transmission converter valve optical coupler module light-receiving loop method for testing reliability, its
Technology composition emphasis illustrates innovative part.
The present invention relates to the content of the invention include following two parts content：Optical coupler module receives loop packaging technology control method
And method for testing reliability.
Loop packaging technology part is received in optical coupler module module, the present invention in traditional packaging technology for first assembling what is tested afterwards
Basic procedure is improved.Propose that receive loop light receiving tube assembling stage addition optical receiver in optical coupler module module determines temporarily
Position combines the process procedure of repetition measurement luminous power verification, and being reached with this guarantees that optical coupler module module receives light receiving diode in loop
The position optimal with optical coupler module mounting seat coordinates, and will be preferably minimized due to the optical power loss that installation site deviation causes.
The part concrete steps of the invention include：Coupler is fixed on fixing tool, light receiving diode is installed into optocoupler
In matched moulds block correspondence hole slot.Then power to light receiving diode, using decaying to≤150 meters of 2db of optical fiber is by frequency
It is that 5VDC, the standard testing pulsed optical signals that dutycycle is 50% draw such as in signal monitoring module for 1MHz, amplitude.
The photosignal waveform in signal monitoring module real-time testing coupler light-receiving loop.The pole of light-receiving two is constantly adjusted by specific purpose tool
Pipe position causes light receiving power to reach in the range of target call value.Then the glue on point around light receiving diode, natural
Package curing, does not use incubator to dry.In the curing process, optical receiver and its holding wire are not touched, it is ensured that the light after adjustment
Receiver position is constant.Carrying out that repetition measurement confirms to be entered back into after luminous power is qualified after the completion of its solidification to the light receiving power of coupler can
Link is tested by property.
Optical coupler module receives loop by state throughout the year in optical signal is received in DC engineering, and its service life requires to reach 40
Year.How to ensure that optical coupler module receives the difficult problem that the high reliability in loop is always direct current transportation equipment manufacturing field.The present invention
Improve its global reliability and propose a kind of reliability testing side for how to reject easily failure optical coupler module reception loop
Method.
Optical coupler module receives loop reliability testing step：Range estimation first checks coupling module outward appearance to guarantee optical coupler module light
Receive loop lossless, then carry out coupling module luminous power test.Optical coupler module is assembled on valve base electronic device Optical Transceiver Card card
Optical Transceiver Card card is tested afterwards and is failed screening, final electric performance test detection defective work is carried out after luminous power test.
Embodiment
The successful Application in multiple domestic extra-high voltage direct-current transmission engineerings of the invention, the size, duration according to Practical Project amount
Require the board quantity per the test of batch coupling module luminous power with physical device situation reasonable disposition, it is generally the case that complete complete
The failure of portion's Optical Transceiver Card card optical receiver and screening test, while functional test and visual inspection can be carried out synchronously.
After using the method, through statistics, our unit's output is accumulative more than 600 optical coupler modules, before putting into operation after it dispatches from the factory
Engineering site test in do not find the failure of any one piece of Optical Transceiver Card card, it is thus regarded that, current method may insure to lose
Efficiency is reduced to less than 0.025%.
Above example is only to illustrate technical scheme rather than a limitation, although reference above-described embodiment is to the present invention
Be described in detail, those of ordinary skill in the art still can to the present invention specific embodiment modify or
Person's equivalent, these any modifications or equivalent without departing from spirit and scope of the invention are applying for pending this
Within bright claims.
Claims (7)
1. a kind of converter valve optical coupler module receives loop reliability testing platform, it is characterised in that the test platform includes electricity
Origin system, the online package platforms of optical coupler module and signal monitoring module, the resistance and optical coupler module in the power-supply system
Connection, the optical coupler module of the online package platforms of the optical coupler module receives loop and is connected with signal monitoring module.
2. optical coupler module as claimed in claim 1 receives loop reliability testing platform, it is characterised in that the power supply system
System is made up of the resistant series of 5V dc sources and 100 Ω, and needle tubing export head is made so as to by winding displacement both positive and negative polarity in power-supply system two ends
Insertion, powers to light receiving diode；Wherein each Light-Emitting Diode is connected by a needle tubing export head with power-supply system,
No. 1 pin of diode connects the positive pole of power-supply system, and No. 3 pins of diode are power cathode, No. 2 pins of diode
It is incorporated into the fpga chip of signal monitoring module as the signal after opto-electronic conversion.
3. optical coupler module as claimed in claim 1 receives loop reliability testing platform, it is characterised in that the optical coupling
The online package platforms of module include fixing tool and optical coupler module hole slot, and optical coupler module is fixed on fixing tool, light is connect
Receive diode to be installed in optical coupler module correspondence hole slot, optical coupler module constitutes optical coupler module and is received back to light receiving diode
Road；Optical coupler module receive loop by decaying to≤optical fiber of 2db is connected with signal monitoring module, signal monitoring module is included
A piece of FPGA microcontrollers and support circuit；Fpga chip is connected to and in computer screen by computer by microcontroller simulator
The electric signal waveform of acquisition is shown on curtain；Light-receiving loop receiving light is judged by the dutycycle waveform parameter contrast with light signal
Whether power is in acceptability limit.
4. a kind of optical coupler module of application as described in any one of claim 1-3 receives loop reliability testing platform and is tested
Method of testing, it is characterised in that methods described comprises the steps：
Step one：Assembling optical coupler module receives loop；
Step 2：Test optical coupler module is received back to the reliability on road.
5. method of testing as claimed in claim 4, it is characterised in that the assembling optical coupler module of the step one receives loop
Including：
Optical coupler module is fixed on fixing tool, light receiving diode is installed in optical coupler module correspondence hole slot；
Power-supply system is powered to light receiving diode, using decaying to≤optical fiber of 2db is by the optical signal transmission of light receiving diode
Into signal monitoring module；
Fpga chip is connected to by computer by microcontroller simulator and the electric signal waveform of acquisition is shown on computer screen；
By may determine that light-receiving loop received optical power whether in acceptability limit with the contrast of the waveform parameter such as the dutycycle of light signal
It is interior；
The glue on point around light receiving diode, natural package curing；In the curing process, do not touch optical receiver and its
Holding wire, it is ensured that the optical receiver position after adjustment is constant；
Repetition measurement is carried out to the light receiving power that optical coupler module receives loop after the completion of solidification, entering back into after confirmation luminous power is qualified can
Link is tested by property.
6. method of testing as claimed in claim 4, it is characterised in that the test optical coupler module of the step 2 is received back to road
Reliability includes：
Inspection optical coupler module outward appearance is lossless to guarantee optical coupler module light-receiving loop；
It is optically coupled module and receives the test of loop photosignal waveform：Optical coupler module is assembled into valve base electronic device Optical Transceiver Card card
Optical Transceiver Card card is tested and is failed after upper screening, carry out final electric performance test after luminous power test and detect defective work.
7. method of testing as claimed in claim 6, it is characterised in that test bag is carried out to Optical Transceiver Card card containing optical coupler module
It is at normal temperatures to the globality functional test of valve base electronic device function in interior valve base electronic device Optical Transceiver Card electrical testing；Its
In the test related to photo-coupler functions of modules be interactive signal self-checking；To optical coupler module in interactive signal self-checking
Light reception device incoming frequency is 1MHz, amplitude is 5VDC, the standard testing pulse signal that dutycycle is 50%, is passed through
Optical coupler module receives the electric signal after the conversion of loop and is connected in the FPGA integrated chips of Optical Transceiver Card；FPGA integrated chips
Program carries out self-inspection survey to receiving the frequency of the electric signal after optical receiver conversion, amplitude and dutycycle three parameters
Examination；Fpga chip sequential monitoring is unqualified to any parameter in test, can send corresponding warning message, points out Optical Transceiver Card
Failure；Failure screening is the electrical testing carried out to valve base electronic device Optical Transceiver Card under special environment condition；Method of testing includes
The temperature of environment, humidity and under the duration, by changing device running environment parameter, the process of device aging, to device
The initial failure less than life expectancy caused by manufacturing process or packaging technology existing defects is screened in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510725808.0A CN106646207A (en) | 2015-10-29 | 2015-10-29 | Platform and method for testing reliability of DC transmission converter valve optical coupling module receiving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510725808.0A CN106646207A (en) | 2015-10-29 | 2015-10-29 | Platform and method for testing reliability of DC transmission converter valve optical coupling module receiving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106646207A true CN106646207A (en) | 2017-05-10 |
Family
ID=58830534
Family Applications (1)
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|---|---|---|---|
| CN201510725808.0A Pending CN106646207A (en) | 2015-10-29 | 2015-10-29 | Platform and method for testing reliability of DC transmission converter valve optical coupling module receiving circuit |
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Cited By (4)
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| CN108983110A (en) * | 2018-04-16 | 2018-12-11 | 许继集团有限公司 | A kind of power supply reliability detection system of converter valve monitoring device |
| CN111781885A (en) * | 2020-07-15 | 2020-10-16 | 西安西电电力系统有限公司 | Flexible direct current converter valve optical trigger plate and trigger pulse signal redundancy method |
| CN113391150A (en) * | 2021-06-10 | 2021-09-14 | 中国南方电网有限责任公司超高压输电公司广州局 | Valve base electronic equipment testing method and device |
| CN115980502A (en) * | 2023-03-20 | 2023-04-18 | 宁波群芯微电子股份有限公司 | Optocoupler driving capability test method and system |
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| CN111781885A (en) * | 2020-07-15 | 2020-10-16 | 西安西电电力系统有限公司 | Flexible direct current converter valve optical trigger plate and trigger pulse signal redundancy method |
| CN111781885B (en) * | 2020-07-15 | 2023-12-26 | 西安西电电力系统有限公司 | Soft direct-current converter valve optical trigger plate and trigger pulse signal redundancy method |
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Application publication date: 20170510 |