Satellite solar cell array illumination test method and system based on single light source

Abstract

The invention provides a satellite solar cell array illumination test method and system based on a single light source, and the method comprises the steps: selecting a single lamp as a simulation light source, debugging the parameters of the lamp, and determining the calibration parameters of the lamp; according to the layout diagram of the satellite solar array sub-arrays, all the solar cell array sub-arrays are sequentially coded according to a spatial sequence, and the satellite is powered up to record voltage telemetry data of each solar array before illumination; setting the lamp according to the calibration parameters, and then adjusting the lamp holder to align to the geometric center of the area of the solar sub-array 1; turning on a lamp source, and recording output voltage telemetering data of the current solar array subarray after telemetering is stable; and turning off the lamp after the power telemetering of the current sub-array meets the requirement, adjusting the lamp holder to align to the regional geometric center of the next solar sub-array on the premise of ensuring the working distance, and ending the solar cell array illumination test until all the sub-arrays are traversed. The device is simple in structure and convenient to assemble, the illumination equipment is not linearly increased along with the increase of the area of the satellite single-wing solar array, and the cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of illumination testing, and in particular to a satellite solar array illumination testing method and system based on a single light source. Background Art

[0002] Satellite solar array illumination testing is a major satellite test, primarily used to assess the correctness of solar array cable connections and the compatibility between the array interface and the control unit interface. It is typically conducted before a satellite leaves the factory and during testing in the launch site's technical area. Illumination testing utilizes a simulated light source to generate light with spectral characteristics similar to sunlight. This simulated light shines on the solar array, generating a voltage output to the control unit, which then collects the input voltage.

[0003] For a long time, the solar simulation light source used in satellite solar array illumination tests has been a lamp array, composed of a large number of light sources and modular lamp racks. Patent document CN107294496A proposes a method for illumination testing using a lamp array. With the increasing demands for shorter satellite development cycles and lower costs, the lamp array solution has the following shortcomings in actual engineering implementation:

[0004] 1. The light array is assembled from many light sources and light stands, with a complex structure, long assembly time and heavy workload.

[0005] Second, in order to meet the illumination requirements of a single wing, the area of the light array needs to increase linearly with the increase of the area of the satellite's single-wing solar array, which is costly.

[0006] 3. The light array consumes a lot of power and requires a high-power 380V power supply interface, which places high demands on the power supply of the factory.

[0007] 4. After the satellite solar wing is unfolded using a marble platform, if the patch surface faces the marble platform, a factory gantry crane is required to hoist the light array onto the marble platform. This places high demands on the factory, takes a long time to operate, and involves certain operational risks.

[0008] 5. Using a light array to conduct illumination tests cannot verify the correspondence between each sub-array on the solar array and the control unit.

[0009] Therefore, the existing satellite solar array illumination test method has problems such as long illumination equipment preparation time, heavy workload, high cost, and high requirements for factory power supply and hoisting. Summary of the Invention

[0010] In view of the defects in the prior art, the purpose of the present invention is to provide a satellite solar array illumination test method and system based on a single light source.

[0011] According to the present invention, a satellite solar array illumination test method based on a single light source includes:

[0012] Step S1: Select a single lamp as a simulated light source;

[0013] Step S2: According to the illumination test requirements, the parameters of the lamp are debugged on the simulated wall until the parameters of the lamp meet the illumination test requirements;

[0014] Step S3: Determine the calibration parameters of the lamp according to the debugging results;

[0015] Step S4: according to the layout diagram of the satellite solar array, all solar arrays are sequentially coded as solar sub-arrays 1, 2, ..., n in spatial order;

[0016] Step S5: Power on the satellite, set the satellite state to the solar array illumination test state, and record the voltage telemetry data of solar arrays 1, 2, ..., n before illumination;

[0017] Step S6: Set the lamp according to the calibration parameters. After the preparation is completed, adjust the lamp holder to align with the geometric center of the solar sub-array 1 area;

[0018] Step S7: Turn on the light source, wait for the telemetry to stabilize, and then record the output voltage telemetry data of the current solar array;

[0019] Step S8: Determine whether the power remote measurement of the current sub-array meets the requirements. If so, execute step S9; if not, turn off the light and re-illuminate after determining the reason for non-compliance.

[0020] Step S9: Turn off the light, adjust the light fixture to align with the geometric center of the next solar array while ensuring the working distance, and return to step S7 until all sub-arrays are traversed and the solar array illumination test is completed.

[0021] Preferably, the single lamp comprises an iodine tungsten lamp or a xenon lamp.

[0022] Preferably, the parameters include average irradiance intensity and non-uniformity;

[0023] The calibration parameters include operating current and operating distance from the solar cell array.

[0024] Preferably, the manner of determining the cause of non-compliance includes checking whether the parameter settings of the lamp, the collection and display of telemetry are correct.

[0025] Preferably, a single light source is used to spatially cover the sub-arrays of the solar cell array one by one by continuously moving the position.

[0026] According to the present invention, a satellite solar array illumination test system based on a single light source is provided, which includes:

[0027] Module M1: Select a single lamp as the simulated light source;

[0028] Module M2: According to the lighting test requirements, debug the parameters of the lamp on the simulated wall until the parameters of the lamp meet the lighting test requirements;

[0029] Module M3: Determine the calibration parameters of the lamp based on the debugging results;

[0030] Module M4: According to the layout diagram of the satellite solar array, all solar arrays are encoded in spatial order as solar sub-array 1, 2, ..., n;

[0031] Module M5: Power on the satellite, set the satellite state to the solar array illumination test state, and record the voltage telemetry data of solar arrays 1, 2, ..., n before illumination;

[0032] Module M6: Set the lamp according to the calibration parameters. After preparation, adjust the lamp holder to align with the geometric center of the solar array 1 area;

[0033] Module M7: Turn on the light source, wait for the telemetry to stabilize, and then record the output voltage telemetry data of the current solar array;

[0034] Module M8: Determines whether the power telemetry of the current sub-array meets the requirements. If so, it triggers module M9; if not, it turns off the light and turns it back on after determining the reason for non-compliance.

[0035] Module M9: Turn off the light, adjust the light fixture to align with the geometric center of the next solar array while ensuring the working distance, and return to module M7 until all sub-arrays are traversed and the solar array illumination test is completed.

[0036] Preferably, the single lamp comprises an iodine tungsten lamp or a xenon lamp.

[0037] Preferably, the parameters include average irradiance intensity and non-uniformity;

[0038] The calibration parameters include operating current and operating distance from the solar cell array.

[0039] Preferably, the manner of determining the cause of non-compliance includes checking whether the parameter settings of the lamp, the collection and display of telemetry are correct.

[0040] Preferably, a single light source is used to spatially cover the sub-arrays of the solar cell array one by one by continuously moving the position.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] 1. The present invention uses a single lamp as a simulated light source, which has a simple structure and is easy to assemble.

[0043] 2. The lighting equipment of the present invention is fixed and does not increase linearly with the increase of the area of the satellite's single-wing solar array, so the cost is low.

[0044] 3. The single-lamp device of the present invention consumes low power and uses a conventional 220V power supply, without the need for a high-power 380V power supply interface. In addition, the single-lamp device is light and easy to move, and does not require a factory crane for lifting, thereby improving the efficiency of equipment transfer and reducing the requirements for the factory.

[0045] 4. The present invention uses a single lamp device to conduct illumination tests. By illuminating each sub-array individually, the corresponding relationship between each sub-array on the solar array and the control unit can be verified. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0047] Figure 1 It is a schematic flow chart of the working method of the present invention. DETAILED DESCRIPTION

[0048] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the scope of the present invention. These all fall within the scope of protection of the present invention.

[0049] According to the present invention, a satellite solar array illumination test method based on a single light source is provided. A single light source is used to cover the sub-arrays of the solar array one by one by continuously moving the position. For a large number of solar arrays of the same size, an autonomous mobile robot can be used, such as Figure 1 Shown, including:

[0050] Step S1: Select a single lamp as a simulated light source, wherein the single lamp includes an iodine tungsten lamp or a xenon lamp.

[0051] Step S2: Based on the lighting test requirements, debug the lamp parameters on the simulated wall until they meet the lighting test requirements. These parameters include average irradiance intensity, unevenness, and other parameters. This debugging process includes: securing the solar array test piece to the simulated wall and connecting the test piece's test cables to the testing equipment; adjusting the position of a single light source to align it with the geometric center of the solar array test piece, with an error less than a preset value, such as 30mm; and setting the initial distance between the light source and the test piece, for example, to 1000mm; the brightness of the light source is determined by the operating current, which is generally tested in multiple settings, such as low, medium, and high. First, set the light source current to a low setting and illuminate the test piece. Wait for a certain period of time, such as 10 seconds, for the data to stabilize, and then record the average irradiance intensity and nonuniformity data in the test equipment. Then adjust the operating current to a medium setting and record the data after it stabilizes. Cycle through all operating current settings and complete data recording. Set a fixed step size, such as 50 mm, and gradually move the light source closer to the solar array test piece. Repeat the above process for each step until the distance reaches 300 mm, concluding the test. This experiment yields average irradiance intensity and nonuniformity data for different distances between the light source and the solar array and at different operating currents. Finally, based on this experimental data and the requirements of the illumination test, determine the test distance between the individual light source and the solar array and the operating current for the formal test.

[0052] Step S3: Determine the calibration parameters of the lamp based on the debugging results, including the operating current and the operating distance from the solar array.

[0053] Step S4: According to the layout diagram of the satellite solar array, all solar arrays are sequentially coded as solar sub-arrays 1, 2, ..., n in spatial order.

[0054] Step S5: Power on the satellite, set the satellite state to the solar array illumination test state, and record the voltage telemetry data of the solar arrays 1, 2, ..., n before illumination.

[0055] Step S6: Set the lamp according to the calibration parameters. Once ready, adjust the lamp mount to align with the geometric center of solar array 1. Before testing, the specific geometric center of each subarray area will be marked using a marker based on the solar cell diagram. During testing, adjust the light source position based on the marker. Excessive deviations will be detected and corrected promptly using the solar array telemetry data.

[0056] Step S7: Turn on the light source, wait for the telemetry to stabilize, and then record the output voltage telemetry data of the current solar array.

[0057] Step S8: Determine whether the power telemetry of the current subarray meets the requirements. If so, proceed to step S9. If not, turn off the lamp, determine the cause of the non-compliance, and then re-illuminate. The method of determining the cause of the non-compliance includes checking the lamp parameter settings, telemetry collection and display to ensure that they are correct.

[0058] Step S9: Turn off the light, adjust the light fixture to align with the geometric center of the next solar array while ensuring the working distance, and return to step S7 until all sub-arrays are traversed and the solar array illumination test is completed.

[0059] Furthermore, the satellite solar array illumination test method based on a single light source of the present invention is described in detail as follows in combination with actual application scenarios:

[0060] A satellite solar array was deployed on an airborne platform. After deployment, it measured 8.8m long and 1.8m high, consisting of nine solar arrays. The airborne platform was 0.7m high and 4.5m wide. The test required an average irradiance intensity of no less than 0.05 and a non-uniformity of less than 30%. An iodine tungsten lamp was selected as the experimental irradiation source and calibrated on a simulated wall. After calibration, the operating current was 4A and the working distance was 850mm. The average irradiance intensity was tested to be 0.06, with a non-uniformity of 21%, meeting the test requirements. The satellite was powered on and set to the solar array illumination test state. The voltage telemetry data for solar arrays 1, 2, ..., n before illumination was recorded. The lamps were set according to the calibration parameters, and the nine solar arrays were illuminated in order from left to right and from top to bottom. The voltage telemetry data for the solar arrays after illumination was recorded, as shown in Table 1.

[0061] Table 1

[0062]

[0063] This invention aims to address the long preparation time, heavy workload, and high cost associated with prior art illumination equipment. Ultimately, it shortens illumination equipment preparation time, reduces power requirements for the plant, avoids dangerous operations such as plant hoisting, and significantly improves illumination test efficiency while simultaneously reducing testing costs. The invention utilizes a single iodine tungsten lamp as the simulated light source, resulting in simple equipment, short preparation time, and low cost. This method better meets the requirements for rapid and efficient satellite illumination testing of solar arrays and is therefore widely applicable to satellite solar array illumination testing.

[0064] The present invention also provides a satellite solar array illumination test system based on a single light source. The satellite solar array illumination test system based on a single light source can be realized by executing the process steps of the satellite solar array illumination test method based on a single light source, that is, those skilled in the art can understand the satellite solar array illumination test method based on a single light source as a preferred implementation of the satellite solar array illumination test system based on a single light source.

[0065] According to the present invention, a satellite solar array illumination test system based on a single light source is provided. This system uses a single light source to spatially cover each subarray of a solar array by continuously moving the light source. The system comprises: Module M1: Selecting a single lamp as a simulated light source. The single lamp can be an iodine tungsten lamp or a xenon lamp. Module M2: Debugging the lamp parameters on a simulated wall according to illumination test requirements until they meet the requirements. These parameters include average irradiance intensity and unevenness. Module M3: Determining the lamp calibration parameters based on the debugging results. These calibration parameters include operating current and operating distance from the solar array. Module M4: Based on the satellite solar array subarray layout, all solar array subarrays are spatially coded as solar subarrays 1, 2, ..., n. Module M5: Powering on the satellite, setting the satellite state to the solar array illumination test state, and recording the voltage telemetry data of solar subarrays 1, 2, ..., n before illumination. Module M6: Configuring the lamp according to the calibration parameters. Once preparation is complete, the lamp mount is aligned with the geometric center of the solar subarray 1 region. Module M7: Turn on the light source, wait for telemetry to stabilize, and then record the output voltage telemetry data of the current solar array sub-array. Module M8: Determine whether the power telemetry of the current sub-array meets the requirements. If so, trigger Module M9; if not, turn off the light source, determine the cause of the non-compliance, and then re-apply the light source. Determining the cause of the non-compliance includes checking the light parameter settings and verifying the correct telemetry acquisition and display. Module M9: Turn off the light source, adjust the light fixture to align with the regional geometric center of the next solar array while maintaining the working distance, and return to Module M7 until all sub-arrays have been traversed, concluding the solar array illumination test.

[0066] Those skilled in the art will appreciate that, in addition to implementing the system and its various devices, modules, and units provided by the present invention in purely computer-readable program code, it is entirely possible to implement the same functions of the system and its various devices, modules, and units provided by the present invention in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers by logically programming the method steps. Therefore, the system and its various devices, modules, and units provided by the present invention can be considered a hardware component, and the devices, modules, and units included therein for implementing various functions can also be considered as structures within the hardware component; the devices, modules, and units for implementing various functions can also be considered as both software modules implementing the method and structures within the hardware component.

[0067] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A satellite solar array illumination test method based on a single light source, characterized in that: include: Step S1: Select a single lamp as a simulated light source; Step S2: According to the illumination test requirements, the parameters of the lamp are debugged on the simulated wall until the parameters of the lamp meet the illumination test requirements; Step S3: Determine the calibration parameters of the lamp according to the debugging results; Step S4: according to the layout diagram of the satellite solar array, all solar arrays are sequentially coded as solar sub-arrays 1, 2, ..., n in spatial order; Step S5: Power on the satellite, set the satellite state to the solar array illumination test state, and record the voltage telemetry data of solar arrays 1, 2, ..., n before illumination; Step S6: Set the lamp according to the calibration parameters. After the preparation is completed, adjust the lamp holder to align with the geometric center of the solar sub-array 1 area; Step S7: Turn on the light source, wait for the telemetry to stabilize, and then record the output voltage telemetry data of the current solar array; Step S8: Determine whether the power remote measurement of the current sub-array meets the requirements. If so, execute step S9; if not, turn off the light and re-illuminate after determining the reason for non-compliance. Step S9: Turn off the light, adjust the light fixture to align with the geometric center of the next solar array while ensuring the working distance, and return to step S7 until all sub-arrays are traversed and the solar array illumination test is completed.

2. The satellite solar array illumination test method based on a single light source according to claim 1, characterized in that: The single lamp includes an iodine tungsten lamp or a xenon lamp.

3. The satellite solar array illumination test method based on a single light source according to claim 1, characterized in that: The parameters in step S2 include average irradiation intensity and unevenness; The calibration parameters include operating current and operating distance from the solar cell array.

4. The satellite solar array illumination test method based on a single light source according to claim 1, characterized in that: The method of determining the cause of non-compliance includes checking whether the parameter settings of the lamp, the collection and display of telemetry are correct.

5. The satellite solar array illumination test method based on a single light source according to any one of claims 1 to 4, characterized in that: A single light source is used to spatially cover the sub-arrays of the solar array one by one by continuously moving the position.

6. A satellite solar array illumination test system based on a single light source, characterized in that: include: Module M1: Select a single lamp as the simulated light source; Module M2: According to the lighting test requirements, debug the parameters of the lamp on the simulated wall until the parameters of the lamp meet the lighting test requirements; Module M3: Determine the calibration parameters of the lamp based on the debugging results; Module M4: According to the layout diagram of the satellite solar array, all solar arrays are encoded in spatial order as solar sub-array 1, 2, ..., n; Module M5: Power on the satellite, set the satellite state to the solar array illumination test state, and record the voltage telemetry data of solar arrays 1, 2, ..., n before illumination; Module M6: Set the lamp according to the calibration parameters. After preparation, adjust the lamp holder to align with the geometric center of the solar array 1 area; Module M7: Turn on the light source, wait for the telemetry to stabilize, and then record the output voltage telemetry data of the current solar array; Module M8: Determines whether the power telemetry of the current sub-array meets the requirements. If so, it triggers module M9; if not, it turns off the light and turns it back on after determining the reason for non-compliance. Module M9: Turn off the light, adjust the light fixture to align with the geometric center of the next solar array while ensuring the working distance, and return to module M7 until all sub-arrays are traversed and the solar array illumination test is completed.

7. The satellite solar array illumination test system based on a single light source according to claim 6, characterized in that: The single lamp includes an iodine tungsten lamp or a xenon lamp.

8. The satellite solar array illumination test system based on a single light source according to claim 6, characterized in that: The parameters in module M2 include average irradiance intensity and non-uniformity; The calibration parameters include operating current and operating distance from the solar cell array.

9. The satellite solar array illumination test system based on a single light source according to claim 6, characterized in that: The method of determining the cause of non-compliance includes checking whether the parameter settings of the lamp, the collection and display of telemetry are correct.

10. The satellite solar array illumination test system based on a single light source according to any one of claims 5 to 9, characterized in that: A single light source is used to spatially cover the sub-arrays of the solar array one by one by continuously moving the position.

Images