CN107102226B - The compatible ground test method of contactless satellite electromagnetic conductive - Google Patents
The compatible ground test method of contactless satellite electromagnetic conductive Download PDFInfo
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- CN107102226B CN107102226B CN201710349723.6A CN201710349723A CN107102226B CN 107102226 B CN107102226 B CN 107102226B CN 201710349723 A CN201710349723 A CN 201710349723A CN 107102226 B CN107102226 B CN 107102226B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
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Abstract
The invention discloses a kind of ground test methods that contactless satellite electromagnetic conductive is compatible comprising following steps: step 1, the design of analysis satellite power supply and distribution and grounding design form electromagnetic conductive test matrix table；Step 2, carries out single machine and system-level non-contact electric power line conducts compatibility test；Step 3 carries out contactless conduction compatibility test of whole star ground wire etc..The present invention solves the problems, such as that the compatible performance of satellite electromagnetic conductive can not carry out comprehensive, quantification, the test of contactless ground, demonstrate satellite electromagnetic conductive compatible design validity, improve the in-orbit reliability used of satellite, realize comprehensive test that star electromagnetic conductive is compatible from system-level to whole, the validity of quantification verifying satellites compatibility test, test operating procedure are safer；The new approaches for having started a compatible ground test method of contactless satellite conduction, solve technology prejudice；It can be widely applied to subsequent satellites conduction compatibility test.
Description
Technical field
The present invention relates to Aerospace test fields, survey more particularly to a kind of ground that contactless satellite electromagnetic conductive is compatible
Method for testing.
Background technique
Inside satellite space is limited, and various electronic equipment layouts are intensive, and inter-working is complicated, and the signal link of equipment supplies
Distribution line and Grounding design are highly prone to the electromagnetism Interference from various approach.With mentioning for satellite application demand
Height, on-board equipment is more diversified, is developed to overloading G system from single load product；System power increase in demand, power consumption from
Multikilowatt is promoted to myriawatt grade；Power source bus design is more complicated, is developed to more bus systems from single bus system；Have on star
There are more two-dimentional driving motors, power source bus load variation is more frequent.In limited area and volume, there is light,
The multiclass individual sensor such as magnetic, electricity, fine motion, the electronic system of the complexity such as highly sensitive receiver and high-speed figure processing circuit, because
This, satellite electromagnetic conductive compatibility test is a technological difficulties of satellite ground testing field.
The compatible aspect of satellite electromagnetic conductive is without systematic ground test method at present, on the one hand by product design into
Row compatibility ensures, on the other hand uses contact voltage ripple test method to part single machine.Voltage ripple test method is led to
The dedicated transfer box of cable is crossed, oscilloprobe is directly contacted to the positive polarity contact powered in transfer box and reference point, it should
Method carries out voltage stability test mainly for single single machine product, can only test single positive polarity contact and benchmark ginseng every time
The voltage of examination point, testing efficiency is relatively low, can not thoroughly evaluating measured piece the compatible performance of conduction, it is quantitative whole star can not to be suitable for
Analysis；The dedicated transfer box of cable used in this method needs to be determined according to product connector type and operating current characteristics
System, and require transfer box internal insulation performance good, high reliablity is switched, testing cost is higher；To prevent in test process just
There is the situation of short circuit in polarity contact and reference point, and when test requires strict control probe and contact contact process, operation
Difficulty is larger.Therefore the compatible ground test method of the satellite electromagnetic conductive of the prior art be primarily present test item not comprehensively,
Can not quantification measure, the larger technical problem of contact operation difficulty.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of ground tests that contactless satellite electromagnetic conductive is compatible
Method, which solve satellite electromagnetic conductive compatible performances can not carry out comprehensive, quantification, the test of contactless ground is asked
Topic, demonstrates satellite electromagnetic conductive compatible design validity, improves the in-orbit reliability used of satellite.
The present invention is to solve above-mentioned technical problem by following technical proposals: a kind of contactless satellite electricity of the present invention
The compatible ground test method of magnetic conduction comprising following steps:
Step 1, the design of analysis satellite power supply and distribution and grounding design, form electromagnetic conductive test matrix table；
Step 2, carries out single machine and system-level non-contact electric power line conducts compatibility test；
Step 3 carries out the contactless conduction compatibility test of whole star ground wire；
Step 4, according to electromagnetic conductive compatibility test as a result, optimization single machine and system-level design for power supply and distribution, whole star connect
Design of Grounding Connections.
Preferably, in the test matrix table in the step 1, one is connect in the ground connection point design of selection deck board front and back sides
Position is tested.
Preferably, the step 2 the following steps are included:
Step 2 11 successively tests the positive-negative polarity power supply beam of each system power supply using current clamp and amplifier；
Step 2 12, system biggish for supply current use current clamp and amplifier, respectively test macro power supply
Positive polarity bunch of cables and negative polarity bunch of cables；
Step 2 13 calculates the test result of the positive polarity bunch of cables of system power supply and negative polarity bunch of cables,
Obtain the conduction electric current of the system；
Step 2 14, judges whether system power supply line conduction test is compatible with, and is to test each single machine power supply in the system
Positive-negative polarity bunch of cables, position and be isolated overproof single machine, otherwise go to step 1.
Preferably, the undesirable system-level non-contact electric power line of compatibility test result is conducted in the step 2,
The successively positive-negative polarity bunch of cables that each single machine is powered in test macro, positions and overproof single machine is isolated, further carry out subsequent
Testing procedure.
Preferably, the step 3 the following steps are included:
Step 3 11 selects difference paired shield cable, cable one end is separately connected satellite reference ground point and its
His grounding point；
The shielded layer of each cable is connected with each other by step 3 12, forms equipotential body；
Step 3 13, connects oscillograph for the cable other end, successively test each grounding point of satellite and reference ground point it
Between potential difference；
Step 3 14, whether ground wire conduction test is compatible between judging each position, is to go to step 3 12, otherwise
The single machine of the grounding point relevant cables is closed one by one, successively the potential difference between the repetition measurement position and satellite reference ground point, it is fixed
Simultaneously overproof single machine is isolated in position.
Preferably, the contactless conduction compatibility test of ground wire is undesirable in the step 3, closes ground connection one by one
The single machine of point relevant cables, successively the potential difference between repetition measurement single machine position and satellite reference ground point, positions and is isolated overproof
Single machine further carries out follow-up test step.
The positive effect of the present invention is that: the present invention solves the compatible performance of satellite electromagnetic conductive and can not carry out comprehensively
Property, quantification, contactless ground test the problem of, demonstrate satellite electromagnetic conductive compatible design validity, improve satellite
The in-orbit reliability used is conducted non-contact according to satellite power supply design and grounding design using power supply line conduction and ground wire
Formula ground test technology is, it can be achieved that the compatible comprehensive test of star electromagnetic conductive, quantification verifying satellites are simultaneous from system-level to whole
The validity of capacitive test, test operating procedure are safer；The compatible ground of contactless satellite conduction has been started to survey
The new approaches of method for testing solve technology prejudice；It can be widely applied to subsequent satellites conduction compatibility test.
Detailed description of the invention
Fig. 1 is flow chart of the invention.
Fig. 2 is the flow chart of step 2 in the present invention；
Fig. 3 is the flow chart of step 3 in the present invention.
Specific embodiment
Present pre-ferred embodiments are provided with reference to the accompanying drawing, in order to explain the technical scheme of the invention in detail.
As shown in Figure 1, the compatible ground test method of the contactless satellite electromagnetic conductive of the present invention the following steps are included:
Step S101, the design of analysis satellite power supply and distribution and grounding design, form electromagnetic conductive test matrix table；
Step S102, carries out single machine and system-level non-contact electric power line conducts compatibility test；
Step S103 carries out the contactless conduction compatibility test of whole star ground wire；
Step S104, according to electromagnetic conductive compatibility test as a result, optimization single machine and system-level design for power supply and distribution, whole star
Ground line design.
In test matrix table in the step S101, an earthing position in the ground connection point design of deck board front and back sides is selected
It is tested.
As shown in Fig. 2, the step 2 the following steps are included:
Step S201 successively tests the positive-negative polarity power supply beam of each system power supply using current clamp and amplifier；
Step S202, system biggish for supply current, using current clamp and amplifier, test macro is powered respectively
Positive polarity bunch of cables and negative polarity bunch of cables；
The test result of the positive polarity bunch of cables of system power supply and negative polarity bunch of cables is calculated, is obtained by step S203
To the conduction electric current of the system；
Step S204, judges whether system power supply line conduction test is compatible with, and is to test each single machine in the system to power
Positive-negative polarity bunch of cables positions and is isolated overproof single machine, otherwise goes to step 1.
The undesirable system-level non-contact electric power line of compatibility test result is conducted in the step S102, is successively surveyed
The positive-negative polarity bunch of cables of each single machine power supply, positions and overproof single machine is isolated in test system, further carries out follow-up test step
Suddenly.
As shown in figure 3, the step S103 the following steps are included:
Step S301 selects difference paired shield cable, cable one end is separately connected satellite reference ground point and other
Grounding point；
The shielded layer of each cable is connected with each other by step S302, forms equipotential body；
Step S303, connects oscillograph for the cable other end, successively tests between each grounding point of satellite and reference ground point
Potential difference；
Step S304, whether ground wire conduction test is compatible between judging each position, is to go to step S302, otherwise one by one
The single machine of the grounding point relevant cables is closed, successively the potential difference between the repetition measurement position and satellite reference ground point, positioning is simultaneously
Overproof single machine is isolated.
The contactless conduction compatibility test of ground wire is undesirable in the step 3, and it is mutually powered-down to close grounding point one by one
The single machine of cable, the successively potential difference between repetition measurement single machine position and satellite reference ground point position and are isolated overproof single machine, then into
One step carries out follow-up test step.
Core of the invention thought is: by the design of analysis satellite power supply and distribution and grounding design, by satellite complex environment
Conduction test be decomposed into power supply line conduction test and ground wire conduction test, using ground test technology, with contactless operation
Mode total system, quantification complete compatibility test, demonstrate satellite electromagnetic conductive compatible design validity, improve satellite
The in-orbit reliability used.
Embodiment
The satellite platform and load of this example are designed using independent double-bus distribution, and platform bus and load bus are all made of
Second level scheme of electric power, main distributing board completes system-level and direct power supply single machine grade distribution on platform bus, attitude control comprehensively control and in
Single machine grade distribution is completed after Complex interface unit, load bus completes system by first antenna distributor, the second antenna distributor
Grade and direct power supply single machine grade distribution, radar distributor sum number pass control unit and complete single machine grade distribution；Using the whole of star topology
Body formula grounding scheme designs 20 grounding points altogether.
Step 1, the design of analysis satellite power supply and distribution and grounding design are then selected if the ground connection point design of deck board front and back sides
The principle that one of earthing position is tested forms electromagnetic conductive test matrix table.20 power supply lines are formed in this example
The matrix table of test position and 13 ground wire test positions (being free of base position).
Step 2, carries out single machine and system-level non-contact electric power line conducts compatibility test.In this example, current clamp is used
And amplifier, to Complex interface unit (2 test positions), attitude control integrated controller (3 test positions), radar distributor (1
A test position) sum number pass control unit (1 test position) positive-negative polarity power supply Shu Jinhang test, obtain the biography of measured piece
Electrical conduction current；To main distributing board (4 test positions), first antenna distributor (4 test positions), the second antenna distributor (5
Test position) positive polarity bunch of cables and negative polarity bunch of cables tested respectively, and by positive polarity bunch of cables and negative polarity electricity
The test result of cable beam is calculated, and the conduction electric current of measured piece is obtained.
Step 3 carries out the contactless conduction compatibility test of whole star ground wire.In this example, 14 3 meters of length are selected
Difference paired shield cable is drawn 1 reference ground point of satellite and 13 tested grounding points by cable, the screen of each cable
It covers layer to be connected with each other, tests each tested potential difference of the grounding point relative to reference ground point using oscillograph.
Step 4, according to electromagnetic conductive compatibility test as a result, optimization single machine and system-level design for power supply and distribution, whole star connect
Design of Grounding Connections.
In conclusion having started the compatible ground test side of contactless satellite conduction using method of the invention
The new approaches of method, comprehensive, quantification, contactless ground test can not be carried out by solving the compatible performance of satellite electromagnetic conductive
Problem, which applies in Space Vehicle System testing field will be very extensive.It is compatible that the present invention demonstrates satellite electromagnetic conductive
Validity is designed, the in-orbit reliability used of satellite is improved.
Particular embodiments described above, the technical issues of to solution of the invention, technical scheme and beneficial effects carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to
The present invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this
Within the protection scope of invention.
Claims (1)
1. a kind of compatible ground test method of contactless satellite electromagnetic conductive, which is characterized in that itself the following steps are included:
Step 1, the design of analysis satellite power supply and distribution and grounding design, form electromagnetic conductive test matrix table；
Step 2, carries out single machine and system-level non-contact electric power line conducts compatibility test；
Step 3 carries out the contactless conduction compatibility test of whole star ground wire；
Step 4, according to electromagnetic conductive compatibility test as a result, optimization single machine and system-level design for power supply and distribution, whole star ground line
Design；
In test matrix table in the step 1, an earthing position in the ground connection point design of deck board front and back sides is selected to be surveyed
Examination；
The step 2 the following steps are included:
Step 2 11 successively tests the positive-negative polarity power supply beam of each system power supply using current clamp and amplifier；
Step 2 12, system biggish for supply current, using current clamp and amplifier, test macro is powered just respectively
Polarity bunch of cables and negative polarity bunch of cables；
The test result of the positive polarity bunch of cables of system power supply and negative polarity bunch of cables is calculated, is obtained by step 2 13
The conduction electric current of the system；
Step 2 14, judges whether system power supply line conduction test is compatible with, and is to test each single machine in the system to power just
Negative polarity bunch of cables positions and is isolated overproof single machine, otherwise goes to step 1；
The undesirable system-level non-contact electric power line of compatibility test result is conducted in the step 2, successively test macro
The positive-negative polarity bunch of cables of interior each single machine power supply, positions and overproof single machine is isolated, further carry out follow-up test step；
The step 3 the following steps are included:
Step 3 11 selects difference paired shield cable, and cable one end is separately connected satellite reference ground point and other connect
Place；
The shielded layer of each cable is connected with each other by step 3 12, forms equipotential body；
Step 3 13, connects oscillograph for the cable other end, successively tests between each grounding point of satellite and reference ground point
Potential difference；
Step 3 14, whether ground wire conduction test is compatible between judging each position, is to go to step 3 12, otherwise one by one
The single machine of the grounding point relevant cables is closed, successively the potential difference between the repetition measurement position and satellite reference ground point, positioning is simultaneously
Overproof single machine is isolated；
The contactless conduction compatibility test of ground wire is undesirable in the step 3, closes grounding point relevant cables one by one
Single machine, successively the potential difference between repetition measurement single machine position and satellite reference ground point, positions and overproof single machine is isolated, further
Carry out follow-up test step.
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| CN109164325B (en) * | 2018-09-26 | 2020-09-15 | 上海微小卫星工程中心 | Rapid detection method for electromagnetic compatibility of mass production satellite |
| CN112698135A (en) * | 2020-12-22 | 2021-04-23 | 上海卫星工程研究所 | Detection system and method for satellite loading test of satellite power supply and distribution system |
| CN113794266A (en) * | 2021-08-16 | 2021-12-14 | 中国空间技术研究院 | Distributed annular power distribution system architecture based on multi-bus configuration on satellite |
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| CN201110880Y (en) * | 2007-10-30 | 2008-09-03 | 航天东方红卫星有限公司 | Satellite earth surface feed electrical distribution testing system |
| CN101349729B (en) * | 2008-09-04 | 2010-07-14 | 北京航空航天大学 | Electromagnetic compatible transmitting test method |
| CN102435872B (en) * | 2011-09-06 | 2014-07-02 | 航天东方红卫星有限公司 | Method for verifying radiation electromagnetic compatibility of electric propulsion system and satellite |
| CN104463355B (en) * | 2014-11-21 | 2017-09-29 | 航天东方红卫星有限公司 | A kind of moonlet test-schedule system based on test model |
| CN105514979B (en) * | 2015-11-30 | 2019-05-17 | 上海卫星工程研究所 | The satellite distribution system of high electrical-magnetic compatibility energy |
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