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CN108802534B - Method for testing performance of transmission channel of solar array driving mechanism - Google Patents

Method for testing performance of transmission channel of solar array driving mechanism Download PDF

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Publication number
CN108802534B
CN108802534B CN201810670979.1A CN201810670979A CN108802534B CN 108802534 B CN108802534 B CN 108802534B CN 201810670979 A CN201810670979 A CN 201810670979A CN 108802534 B CN108802534 B CN 108802534B
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driving mechanism
solar array
cable bundle
array driving
power supply
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CN108802534A (en
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张如变
王智磊
赵枝凯
袁野
李奇
陈夜
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Shanghai Institute of Satellite Engineering
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Shanghai Institute of Satellite Engineering
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention provides a method for testing the performance of a transmission channel of a solar array driving mechanism, which comprises the following steps: firstly, establishing a test state: the ground adapter cable bundle divides the power supply of the ground analog array into two parts; secondly, conducting conductivity and insulativity tests of the performance of the transmission channel of the solar array driving mechanism; thirdly, carrying out open-circuit voltage test on the performance of the transmission channel of the solar array driving mechanism; and step four, finally, carrying out transmission heat consumption test on the performance of the transmission channel of the solar array driving mechanism, recovering the cable connection state in the step one, and accurately simulating the heat consumption of the transmission channel of the solar array driving mechanism according to the transmission rated current of all transmission slip rings and cables on the satellite during ground heat test. The invention realizes the ground test of the performance of the transmission channel of the satellite solar array driving mechanism, completes the test coverage of the satellite power supply channel of the product and improves the reliability of the product.

Description

Method for testing performance of transmission channel of solar array driving mechanism
Technical Field
The invention relates to a test method, in particular to a test method for the performance of a transmission channel of a solar array driving mechanism.
Background
The satellite energy source has the following modes: during the ground electric test, the ground solar male mold array transmits energy to the power supply controller through a cable bundle; during the orbit illumination, the solar cell panel set generates current which is transmitted to the power supply controller through the transmission channel of the solar array driving mechanism; the ground electric test simulates a shadow area or an on-orbit shadow area, and the battery pack supplies power to the whole satellite. During the ground test, the transmission channel of the solar array driving mechanism is not subjected to normal working current check in a general state. Even during ground illumination tests, the transmitted current is much less than normal operation because the intensity of the illumination array is much less than that of sunlight.
When the solar array driving mechanism is used in a ground thermal test, in order to obtain accurate temperature distribution of a product, the heat consumption of the product needs to be accurately simulated, wherein the heat consumption comprises the heat consumption of motor rotation and the heat consumption of transmission of a transmission slip ring. The conventional simulation mode comprises the following steps: the ground heating plate is adhered, equivalent current is switched on according to theoretical calculation, and the defects of inaccurate heat consumption simulation, inaccurate heat source simulation and the like exist.
In addition, during ground test, the input end of the solar array driving mechanism needs to rotate in real time, the whole star test is matched, and in order to avoid the problems of cable winding and the like, the input end of the solar array driving mechanism cannot be connected with an external cable during ground test.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method for testing the performance of a transmission channel of a solar array driving mechanism, which realizes the ground test of the performance of the transmission channel of the satellite solar array driving mechanism, completes the test coverage of a satellite power supply channel of a product and improves the reliability of the product.
According to one aspect of the invention, a method for testing the performance of a transmission channel of a solar array driving mechanism is provided, which is characterized by comprising the following steps:
firstly, establishing a test state: the ground switching cable bundle divides the power supply of the ground analog array into two parts, one part of the power supply is transmitted to the on-satellite power supply input end of a third power supply controller through a third cable bundle, and the other part of the power supply is transmitted to the on-satellite power supply input end of a fourth power supply controller through the output end of a fifth solar array driving mechanism, a first transmission slip ring group of the solar array driving mechanism, the input end of a seventh solar array driving mechanism, a second cable bundle, a ground short-circuit cable bundle, a second cable bundle, the input end of an eighth solar array driving mechanism, a second transmission slip ring group of the solar array driving mechanism, the output end of a sixth solar array driving mechanism and the on-satellite power supply input end of the third power supply controller; the ninth port of the second cable bundle and the tenth port of the second cable bundle are in short circuit by adopting a short circuit cable bundle, and the second cable bundle and the ground short circuit cable can rotate along with the input end of the seventh solar array driving mechanism and the input end of the eighth solar array driving mechanism without cable connection relation with the outside, so that winding risk is avoided;
secondly, conducting conductivity and insulativity tests on the performance of the transmission channel of the solar array driving mechanism, wherein the test process comprises the following steps: disconnecting a first input port of the ground switching power supply cable bundle, a second input port of the power supply cable bundle, a third output end of the third cable bundle and a fourth output end of the third cable bundle, and not powering up the ground formfitting, and testing corresponding nodes by adopting a universal meter or other measuring equipment to measure the continuity one by one and the insulativity of each passage and other passages after the first input port of the ground switching power supply cable bundle, the second input port of the power supply cable bundle, the third output end of the third cable bundle and the fourth output end of the third cable bundle are disconnected, and recovering the connection after the test is finished;
and step three, then, carrying out open circuit voltage test on the performance of the transmission channel of the solar array driving mechanism, wherein the test process comprises the following steps: disconnecting the third output end of the third cable bundle and the fourth output end of the third cable bundle, powering up the ground pseudomorphic arrays one by one, testing the voltage of each channel, and recovering connection after the test is finished;
and step four, finally, carrying out transmission heat consumption test on the performance of the transmission channel of the solar array driving mechanism, recovering the cable connection state in the step one, and accurately simulating the heat consumption of the performance of the transmission channel of the solar array driving mechanism by transmitting rated current through all transmission slip rings and cables on the satellite during ground heat test.
Compared with the prior art, the invention has the following beneficial effects: (1) the solar array driving mechanism tests the conductivity, the insulativity and the open-circuit voltage of each channel before transmission, and provides a test basis for the design conformity of the transmission power supply of the solar array driving mechanism; (2) all transmission slip rings and corresponding cable bundles of the solar array driving mechanism are used for normally transmitting current; (3) the input end of the solar array driving mechanism is connected with the outside through a cable, the input end of the solar array driving mechanism can rotate continuously, winding risks do not exist, and test safety is improved. The invention provides reference for the performance test of the transmission channel of the solar array driving mechanism of the follow-up satellite model; the invention ensures the test effectiveness and safety and is suitable for the satellite test containing the solar array driving mechanism.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic diagram of the connection of the ground pseudomorphic matrix power supply.
Fig. 2 is a schematic diagram of connection of power supply of the solar cell array set.
Fig. 3 is a connection schematic diagram of a performance test of a transmission channel of the solar array driving mechanism.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
The satellite energy source has the following modes:
the satellite energy source has the following modes:
(1) during the ground electricity test, the ground solar simulation array sends energy to the power supply controller through a first cable bundle 1, and the schematic diagram is shown in fig. 1. In order to improve the reliability, the power supply array is divided into a group A power supply and a group B power supply, and the group A power supply and the group B power supply are respectively connected to the ground power supply input end of the first power supply controller and the ground power supply input end of the second power supply controller through the first output end of the first cable bundle 1 and the second output end of the first cable bundle 1.
(2) During the track illumination period, the current generated by the solar cell set is transmitted to the power supply controller through the transmission channel of the solar array driving mechanism, and the schematic diagram is shown in fig. 2. Similarly, in order to improve the reliability, the power supply array is divided into a group A power supply and a group B power supply, and the groups A power supply and the group B power supply are respectively transmitted to the input end of the seventh solar array driving mechanism, the input end of the eighth solar array driving mechanism, the first transmission slip ring group 11, the second transmission slip ring group 12, the output end of the fifth solar array driving mechanism, the output end of the sixth solar array driving mechanism, the third cable bundle 3, the on-board power supply input end of the third power supply controller and the on-board power supply input end of the fourth power supply controller through the second cable bundle 2.
(3) The ground electric test simulates a shadow area or an on-orbit shadow area, and the battery pack supplies power to the whole satellite. During the ground test, the transmission channel of the solar array driving mechanism is not subjected to normal working current check in a general state. Even during ground illumination tests, the transmitted current is much less than normal operation because the intensity of the illumination array is much less than that of sunlight.
As shown in fig. 3, the method for testing the performance of the transmission channel of the solar array driving mechanism comprises the following steps:
firstly, establishing a test state: the ground switching cable bundle divides the power supply of the ground analog array into two parts, namely a group B power supply and a group A power supply, the group B power supply passes through a ground switching cable bundle 4 and a third cable bundle 3 to the on-satellite power supply input end of a third power supply controller, the group A power supply passes through the output end of a fifth solar array driving mechanism, the first transmission slip ring group 11 of the solar array driving mechanism, the input end of a seventh solar array driving mechanism, the second cable bundle 2, a ground short-circuit cable bundle 5, the second cable bundle 2, the input end of an eighth solar array driving mechanism, the second transmission slip ring group 12 of the solar array driving mechanism, the output end of a sixth solar array driving mechanism and the on-satellite power supply input end of the third cable bundle 3 to a fourth power supply controller; and the ninth port of the second cable bundle 2 and the tenth port of the second cable bundle 2 are in short circuit by adopting a short circuit cable bundle, and the second cable bundle 2 and the ground short circuit cable do not have cable connection relation with the outside, can rotate along with the input end of the seventh solar array driving mechanism and the input end of the eighth solar array driving mechanism, and have no winding risk.
The second cable bundle 2 and the ground short circuit cable are wrapped by red bags and are fixed to the end face of the driving mechanism, and the whole body rotates along with the driving mechanism.
Secondly, conducting conductivity and insulativity tests on the performance of the transmission channel of the solar array driving mechanism, wherein the test process comprises the following steps: disconnecting a first input port of the ground switching power supply cable bundle 4, a second input port of the ground switching power supply cable bundle 4, a third output end of the third cable bundle 3 and a fourth output end of the third cable bundle 3, and testing the conductivity and the insulativity of the transmission channel performance of the solar array driving mechanism by not powering up the ground solar array pseudo-array, wherein the testing process is as follows:
(1) respectively switching a first input port of the ground switching power supply cable bundle and a third output end of a third cable bundle 3 to two ground measurement boxes, exposing all nodes inside the cable to external measurement points of the ground measurement boxes, measuring the conductivity of the corresponding nodes of the two ground measurement boxes by adopting a universal meter, and measuring the insulativity of each node of the two ground measurement boxes and other nodes by adopting the universal meter, thereby completing the conductivity and insulativity tests of the group A power supply channels;
(2) respectively switching a second input port of the ground switching power supply cable bundle 4 and a fourth output end of the third cable bundle 3 to the two ground measurement boxes, exposing all nodes inside the cable to external measurement points of the ground measurement boxes, measuring the conductivity of the corresponding nodes of the two ground measurement boxes by using a universal meter, and measuring the insulativity of each node of the two ground measurement boxes and other nodes by using the universal meter, thereby completing the conductivity and insulativity tests of the power supply channels in the group B;
(3) and restoring connection after the test is finished.
And step three, then, carrying out open circuit voltage test on the performance of the transmission channel of the solar array driving mechanism, wherein the test process comprises the following steps: disconnecting the third output end of the third cable bundle 3 and the fourth output end of the third cable bundle 3, respectively switching to the two ground measurement boxes, and carrying out open-circuit voltage test on the performance of the transmission channel of the solar array driving mechanism, wherein the test process is as follows:
(1) a1 powered by the group A of the ground pseudo-array is powered on, the power of the groups A2 to A16 except the group A1 and the power of the groups B1 to B16 powered by the group B are cut off, the voltage output by a test access A1 is tested at the ground transfer box, the power of the group A1 is cut off after the test is finished, and the number of other paths powered by the group A is similar;
(2) b1 of the power supply of the B group of the ground pseudo-array is powered on, B2 to B16 of the A1 to A16 and the B group of the power supply except B1 in the A group are powered off, the output voltage of a test access B1 is tested at the ground transfer box, the B1 is powered off after the test is finished, and the other paths of the power supply of the B group are similar;
(3) the ground pseudomorphic matrix A group power supplies A1-A16 and B group B1-B16 are all powered up, the output voltages of the A group power supplies A1-A16 and the B group power supplies B1-B16 are respectively tested at the ground transfer box, and the power is completely cut off after the test is finished;
(4) and restoring connection after the test is finished.
And step four, finally, carrying out transmission heat loss test on the performance of the transmission channel of the solar array driving mechanism, recovering the cable connection state in the step one, wherein all transmission slip rings and all satellite cables of the solar array driving mechanism transmit rated current during ground heat test, and accurately simulating the heat loss of the performance of the transmission channel of the solar array driving mechanism, wherein the transmission process is as follows:
(1) b group power supply path: the ground switching cable bundle 4 and the third cable bundle 3 are connected to the on-satellite power supply input end of the third power supply controller;
(2) group a power supply pass-through path: the output end of a fifth solar array driving mechanism, the first transmission slip ring group 11 of the solar array driving mechanism, the input end of a seventh solar array driving mechanism, the second cable bundle 2, the ground short-circuit cable bundle 5, the second cable bundle 2, the input end of an eighth solar array driving mechanism, the second transmission slip ring group 12 of the solar array driving mechanism, the output end of a sixth solar array driving mechanism, and the onboard power supply input ends of a third cable bundle 3 to a fourth power supply controller
(3) During ground heat test, the ground calculates the current output of the solar cell array according to the on-orbit illumination condition and the illumination time, and outputs the power supply of the A group and the power supply of the B group, so that the transmission channel of the driving mechanism comprises: the cable bundle 2, the solar array driving mechanism and the cable bundle 3 pass through rated current, so that the heat consumption of a transmission channel of the solar array driving mechanism is accurately simulated, and accurate heat consumption conditions are provided for the whole satellite ground heat test.
The invention adopts the short-circuit cable bundle to short-circuit the ninth port of the second cable bundle 2 and the tenth port of the second cable bundle 2, the second cable bundle and the ground short-circuit cable can rotate along with the input end of the seventh solar array driving mechanism and the input end of the eighth solar array driving mechanism without the connection relation of cables with the outside, thus the use is convenient, red cloth bags are adopted for wrapping, the red is warning color, the prompt effect is realized for field operators and inspectors, and the cloth bags can prevent the second cable bundle, the ground short-circuit cable and other cables of the whole star from being wound.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.

Claims (1)

1. A method for testing the performance of a transmission channel of a solar array driving mechanism is characterized by comprising the following steps:
firstly, establishing a test state: the ground switching cable bundle divides the power supply of the ground analog array into two parts, one part flows through the third cable bundle to the on-satellite power supply input end of the third power supply controller, and the other part flows through the output end of the fifth solar array driving mechanism, the first transmission slip ring group of the solar array driving mechanism, the input end of the seventh solar array driving mechanism, the second cable bundle, the ground short circuit cable bundle, the input end of the eighth solar array driving mechanism, the second transmission slip ring group of the solar array driving mechanism, the output end of the sixth solar array driving mechanism and the on-satellite power supply input end of the fourth power supply controller; the ninth port of the second cable bundle and the tenth port of the second cable bundle are in short circuit by adopting a short circuit cable bundle, and the second cable bundle and the ground short circuit cable can rotate along with the input end of the seventh solar array driving mechanism and the input end of the eighth solar array driving mechanism without cable connection relation with the outside, so that winding risk is avoided;
secondly, conducting conductivity and insulativity tests on the performance of the transmission channel of the solar array driving mechanism, wherein the test process comprises the following steps: disconnecting a first input port of the ground switching power supply cable bundle, a second input port of the power supply cable bundle, a third output end of the third cable bundle and a fourth output end of the third cable bundle, and not powering up the ground formfitting, and testing corresponding nodes by adopting a universal meter or other measuring equipment to measure the continuity one by one and the insulativity of each passage and other passages after the first input port of the ground switching power supply cable bundle, the second input port of the power supply cable bundle, the third output end of the third cable bundle and the fourth output end of the third cable bundle are disconnected, and recovering the connection after the test is finished;
and step three, then, carrying out open circuit voltage test on the performance of the transmission channel of the solar array driving mechanism, wherein the test process comprises the following steps: disconnecting the third output end of the third cable bundle and the fourth output end of the third cable bundle, powering up the ground pseudomorphic arrays one by one, testing the voltage of each channel, and recovering connection after the test is finished;
and step four, finally, carrying out transmission heat consumption test on the performance of the transmission channel of the solar array driving mechanism, recovering the cable connection state in the step one, and accurately simulating the heat consumption of the performance of the transmission channel of the solar array driving mechanism by transmitting rated current through all transmission slip rings and cables on the satellite during ground heat test.
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CN109782741B (en) * 2019-01-30 2020-07-28 上海卫星工程研究所 On-line measuring method for heat consumption of satellite power supply controller
CN112444692A (en) * 2020-10-22 2021-03-05 上海卫星工程研究所 Automatic lightweight ground switching test system for spacecraft

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