CN110654575A - Satellite load power supply device, method, equipment, storage medium and thruster - Google Patents
Satellite load power supply device, method, equipment, storage medium and thruster Download PDFInfo
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- CN110654575A CN110654575A CN201910909670.8A CN201910909670A CN110654575A CN 110654575 A CN110654575 A CN 110654575A CN 201910909670 A CN201910909670 A CN 201910909670A CN 110654575 A CN110654575 A CN 110654575A
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- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
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Abstract
The invention discloses a satellite load power supply device, which comprises: the first detection unit detects the current required power of a load; when the current required power is larger than a preset threshold value, the main control unit cuts off a path between the load and the satellite power supply and controls the energy storage unit to supply power to the load; when the current required power is smaller than a preset threshold value, the energy storage unit receives electric energy transmitted by the satellite power supply, transmits the electric energy meeting the current required power to a load, and stores redundant electric energy. The device can realize repeated short-time operation of a high-power load on a low-power satellite, reduces the requirement of the high-power load on the power of the satellite power supply, forms isolation between the satellite power supply and the power load, and effectively prevents instantaneous impact and disturbance of power-consuming equipment on the satellite power supply system in the processes of startup, shutdown and work. The invention also provides a satellite load power supply method, equipment, a storage medium and a thruster.
Description
Technical Field
The invention relates to the technical field of satellite power supply, in particular to a satellite load power supply device, method, equipment, storage medium and thruster.
Background
In order to reduce the influence, a plurality of satellite companies limit the charging current and working energy level of the electric thruster so that the electric thruster meets the requirement at the cost of sacrificing the performance of the thruster; secondly, the high-power thruster consumes a large amount of energy when working, and brings great burden to the power supply power of a satellite power supply, and in order to increase the power consumption requirement, the area of a solar cell sailboard must be increased, so that the volume, weight and cost of the satellite are increased; in addition, the electromagnetic interference generated by the discharge work of the electric thruster can generate instantaneous impact and disturbance on the satellite power supply system, and the stability and the working reliability of the satellite power supply system are greatly influenced.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a satellite load power supply device, a satellite load power supply method, satellite load power supply equipment, a storage medium and a thruster, and aims to solve the technical problem that in the prior art, a satellite power supply is small in power supply and large in power required by an electric load.
In order to achieve the above object, the present invention provides a satellite load power supply apparatus, including:
a first detection unit: the power control device is used for detecting the current required power of a load;
the main control unit: the power supply control device is used for cutting off a path between the load and a satellite power supply when the current required power is larger than a preset threshold value, and controlling an energy storage unit to supply power to the load;
an energy storage unit: and the power supply is used for receiving the electric energy transmitted by the satellite power supply when the current required power is smaller than a preset threshold value, transmitting the electric energy meeting the current required power to the load, and storing redundant electric energy.
Preferably, the apparatus further comprises:
and the second detection unit is used for detecting the current electric quantity of the energy storage unit.
Preferably, the main control unit is further configured to control the energy storage unit to supply power to the load according to a preset time; and when the current electric quantity is larger than the threshold electric quantity of the energy storage unit, controlling the energy storage unit to receive the electric energy transmitted by the satellite power supply, transmitting the electric energy to the load, and not storing the electric energy.
Preferably, the input end of the device is connected with the output end of the satellite power supply, and the output end of the device is connected with the electric energy input end of the load.
In addition, in order to achieve the above object, the present invention further provides a method for supplying power to a satellite load, including:
detecting the current required power of a load;
when the current required power is larger than a preset threshold value, cutting off a path between the load and a satellite power supply, and controlling an energy storage unit to supply power to the load;
and when the current required power is smaller than a preset threshold value, receiving the electric energy transmitted by the satellite power supply, transmitting the electric energy meeting the current required power to the load, and storing redundant electric energy.
Preferably, when the current required power is greater than a preset threshold, the step of cutting off a path between the load and the satellite power supply and controlling the energy storage unit to supply power to the load specifically includes:
and when the current required power is larger than a preset threshold value, cutting off a path between the load and the satellite power supply, and controlling the energy storage unit to supply power to the load according to preset time.
Preferably, after the step of receiving the electric energy transmitted by the satellite power supply and transmitting the electric energy meeting the current required power to the load when the current required power is less than a preset threshold, and storing redundant electric energy, the method further includes:
detecting the current electric quantity of the energy storage unit;
and when the current electric quantity is larger than the threshold electric quantity of the energy storage unit, controlling the energy storage unit to receive the electric energy transmitted by the satellite power supply, transmitting the electric energy to the load, and not storing the electric energy.
Furthermore, to achieve the above object, the present invention also proposes an apparatus comprising: a memory, a processor and a satellite load power supply program stored on the memory and executable on the processor, the satellite load power supply program being configured to implement the steps of the satellite load power supply method as described above.
In addition, in order to achieve the above object, the present invention further provides a storage medium, where a satellite load power supply program is stored, and the satellite load power supply program, when executed by a processor, implements the steps of the satellite load power supply method as described above.
In addition, in order to achieve the above object, the present invention further provides a thruster, which includes the above satellite load power supply device, or which applies the above satellite load power supply method.
The invention discloses a satellite load power supply device, a method, equipment, a storage medium and a thruster, wherein the device comprises: a first detection unit: the power control device is used for detecting the current required power of a load; the main control unit: the power supply control device is used for cutting off a path between the load and a satellite power supply when the current required power is larger than a preset threshold value, and controlling an energy storage unit to supply power to the load; an energy storage unit: and the power supply is used for receiving the electric energy transmitted by the satellite power supply when the current required power is smaller than a preset threshold value, transmitting the electric energy meeting the current required power to the load, and storing redundant electric energy. The device is used as a power supply to supply power to the high-power electric load, so that the requirement of the high-power electric load on the power of the satellite power supply can be effectively reduced; the limit of a satellite power supply to the load current and the working energy level is avoided, and the condition that the electric thruster meets the requirement at the cost of sacrificing the performance of the thruster is avoided.
Drawings
FIG. 1 is a schematic diagram of an apparatus in a hardware operating environment according to an embodiment of the present invention;
fig. 2 is a block diagram of a first embodiment of a satellite load power supply apparatus according to the present invention;
FIG. 3 is a schematic flow chart illustrating a first embodiment of a method for supplying power to a satellite load according to the present invention;
fig. 4 is a block diagram of a second embodiment of the satellite load power supply apparatus according to the present invention;
fig. 5 is a flowchart illustrating a power supply method for a satellite load according to a second embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic device structure diagram of a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the apparatus may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, and a memory 1003. Wherein a communication bus 1002 is used to enable connective communication between these components. The Memory 1003 may be a Random Access Memory (RAM) Memory, or may be a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1003 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in fig. 1 does not constitute a limitation of the device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1003 as a storage medium may include an operating system and a satellite load power supply program.
In the apparatus shown in fig. 1, the processor 1001 and the memory 1003 in the apparatus of the present invention may be disposed in the apparatus, and the apparatus calls the satellite load power supply program stored in the memory 1003 through the processor 1001 and executes the satellite load power supply method provided in the embodiment of the present invention.
An embodiment of the present invention provides a satellite load power supply apparatus, and referring to fig. 2, fig. 2 is a block diagram of a structure of a first embodiment of a satellite load power supply apparatus according to the present invention.
The satellite load power supply apparatus 200 includes: the device comprises a first detection unit 201, a main control unit 203 and an energy storage unit 204.
Note that, an input terminal of the satellite load power supply device 200 is connected to an output terminal of the satellite power supply 100, and an output terminal of the satellite load power supply device 200 is connected to an input terminal of the load 300. The load 100 may be all load units in the satellite that need power supply, or may be load units in the satellite that need high-power supply. In the present embodiment, a thruster is stated as a load, and the satellite load power supply 200 may be integrated to the thruster.
It is easy to understand that the satellite load power supply device 200 forms isolation between the satellite power supply and the power load, so that instantaneous impact and disturbance to the satellite power supply system during the startup, shutdown and working processes of the power equipment can be effectively prevented, and the stability and the working reliability of the satellite power supply system are greatly improved.
The first detection unit 201: for detecting the current power demand of the load.
It should be noted that, the first detection unit 201 sends the detection result to the main control unit 203, and the first detection unit 201 may be set to be periodic detection, real-time monitoring, and trigger detection. In this embodiment, it is stated that the thruster is used as the load, for example, when the thruster is started, the first detecting unit 201 is triggered to detect the currently required power of the load.
The master control unit 203: the energy storage unit 204 is used for cutting off a path between the load and a satellite power supply when the current required power is greater than a preset threshold value, and controlling the energy storage unit 204 to supply power to the load;
it should be noted that the preset threshold is preset and stored in the memory of the main control unit 203, and in a specific implementation, the preset threshold may be set according to an actual requirement. In the present embodiment, the thruster is used as a load, for example: the method comprises the steps of setting a preset threshold as power required by a thruster when the thruster does not work, detecting that the current required power is larger than the preset threshold when the thruster works, cutting off a passage between the thruster and a satellite power supply, and controlling the energy storage unit 204 to supply power to the thruster, namely, when the thruster works, only the energy storage unit 204 supplies power, and the rest of loads can still be supplied with power by the satellite power supply.
The energy storage unit 204: and is configured to receive the electric energy transmitted by the satellite power supply 100 when the current required power is smaller than a preset threshold, transmit the electric energy satisfying the current required power to the load 300, and store redundant electric energy.
It should be noted that the energy storage unit is a power lithium battery in this embodiment, and the reason why the lithium battery is selected is that the lithium battery has a large energy storage capacity and is light, and does not bring extra weight burden to the satellite. In specific implementations, the energy storage unit can be a large-capacity chemical battery or a fuel cell, but is not limited to the listed types of energy storage devices, and the energy storage device is used for supplying high-power to a satellite load without affecting the volume weight and the cost of the satellite.
The satellite load power supply device 200 functions as a circuit, does not affect a circuit for supplying power from the original satellite power supply 100 to the power load 300, and stores only redundant power.
The device of the embodiment can store electric energy generated by the satellite power supply, especially redundant electric energy generated by the satellite power supply at the moment when the power load is small in the energy storage unit, achieves the effect of fully collecting the electric energy generated by the satellite power supply, meets the requirement of high-power utilization of the satellite power load, avoids the limitation of the satellite power supply on load current and working energy level, and avoids the electric thruster from meeting the requirement at the cost of sacrificing the performance of the thruster. The energy storage device forms isolation between the satellite power supply and the power load, can effectively prevent the power equipment from generating instantaneous impact and disturbance on the satellite power supply system in the processes of startup, shutdown and work, and greatly improves the stability and the working reliability of the satellite power supply system.
Based on the first embodiment of the satellite load power supply device of the invention, the invention provides a satellite load power supply method, and referring to fig. 3, fig. 3 is a schematic flow chart of the first embodiment of the satellite load power supply method of the invention;
step S100: detecting the current required power of a load;
it should be noted that the present embodiment states that the thruster is used as a load, for example, the thruster starts to work, and the currently required power of the thruster is detected.
Step S200: when the current required power is larger than a preset threshold value, cutting off a path between the load 300 and the satellite power supply 100, and controlling the energy storage unit 204 to supply power to the load 300;
it should be noted that the preset threshold may be set according to actual requirements. For example: the method comprises the steps of setting a preset threshold as power required by a thruster when the thruster does not work, detecting that the current required power is larger than the preset threshold when the thruster works, cutting off a passage between the thruster and a satellite power supply, and controlling the energy storage unit 204 to supply power to the thruster, namely, when the thruster works, only the energy storage unit 204 supplies power, and the rest of loads can still be supplied with power by the satellite power supply.
Step S300: and when the current required power is smaller than a preset threshold value, receiving the electric energy transmitted by the satellite power supply 100, transmitting the electric energy meeting the current required power to the load 200, and storing redundant electric energy.
For example, the following are: the thruster does not work temporarily, the power required by the thruster at present is detected to be smaller than a preset threshold value, the electric energy transmitted by the satellite power supply 100 is received, the satellite load power supply device 200 serves as a passage at the moment to output the electric energy to other loads, and redundant electric energy is stored.
According to the method, the electric energy generated by the satellite power supply, particularly the redundant electric energy generated by the satellite power supply when the power load is small, can be stored in the energy storage unit, so that the effect of fully collecting the electric energy generated by the satellite power supply is achieved, the requirement of the satellite power load on high-power utilization is met, the limitation of the satellite power supply on load current and working energy level is avoided, and the electric thruster is prevented from meeting the requirement at the cost of sacrificing the performance of the thruster.
Based on the first embodiment of the satellite load power supply device, a second embodiment of the satellite load power supply device is provided. Referring to fig. 4, fig. 4 is a block diagram illustrating a second embodiment of a satellite load power supply apparatus according to the present invention;
the satellite load power supply apparatus 200 further includes: a second detection unit 202.
The second detection unit 202: for detecting the current charge of the energy storage unit 204.
It is easy to understand that the energy storage amount of the energy storage unit 204 is limited, and the service life of the energy storage unit 204 is lost when overcharging and overdischarging, so the second detection unit 202 is configured to detect the current electric quantity of the energy storage unit 204 and send the current electric quantity value to the main control unit 203.
The master control unit 203: and is further configured to cut off a path between the load 300 and the satellite power source 100 when the currently required power is greater than a preset threshold, and control the energy storage unit 204 to supply power to the load 300 according to a preset time. When the current electric quantity is greater than the threshold electric quantity of the energy storage unit 204, the energy storage unit 204 is controlled to receive the electric energy transmitted by the satellite power supply 100, and transmit the electric energy to the load 300 without storing the electric energy.
It is easy to understand that, in consideration of the service life of the high-power electric load and the service life of the energy storage unit 204, it is preferable to operate according to a preset time, and in this embodiment, a thruster is taken as the load. For example: the thruster is started and needs high-power supply, the main control unit 203 cuts off a direct access between the thruster and the satellite power supply 100, the power supply time required by the thruster is planned to be 200s according to the current thrust required by the satellite, the 200s is set as the preset time, and the main control unit 203 controls the energy storage unit 204 to supply power to the thruster according to the preset time. When the satellite finishes the action and does not need to be powered any more, and the preset time is up, the main control unit 203 controls the energy storage unit 204 to stop supplying power. When the currently required power of the thruster is reduced below a preset threshold value, the energy storage unit 204 is controlled to receive the electric energy transmitted by the satellite power supply 100, transmit the electric energy meeting the currently required power to the load 200, and store redundant electric energy.
It is easy to understand that, when the current power of the energy storage unit 204 reaches the threshold power, the energy storage unit 204 is controlled to receive the power transmitted by the satellite power source 100 and transmit the power to the load 300 without storing the power. At this point the device acts only as a pass-through and no longer stores electrical energy to avoid overcharging.
The device of the embodiment supplies power to the load according to the preset time on the basis of the first embodiment, solves the contradiction that the power of the satellite is small but the power required by the power load is large, ensures the service life of the device and the load, forms isolation between the satellite power supply and the power load, can effectively prevent electric equipment from generating instantaneous impact and disturbance to the satellite power supply system in the startup, shutdown and working processes, and greatly improves the stability and the working reliability of the satellite power supply system.
Based on the second embodiment of the satellite load power supply device of the invention, the invention provides a satellite load power supply method, and referring to fig. 5, fig. 5 is a schematic flow chart of the second embodiment of the satellite load power supply method of the invention;
the step S200 specifically includes:
s201: when the current required power is greater than the preset threshold value, the path between the load 300 and the satellite power supply 100 is cut off, and the energy storage unit 204 is controlled to supply power to the load 300 according to the preset time.
It is easy to understand that, in consideration of the service life of the high-power electric load and the service life of the energy storage unit, it is preferable to operate according to a preset time, and in this embodiment, a thruster is used as the load. For example: the thruster is started and needs high-power supply, the main control unit 203 cuts off a direct access between the thruster and the satellite power supply 100, the power supply time required by the thruster is planned to be 200s according to the current thrust required by the satellite, the 200s is set as the preset time, and the main control unit 203 controls the energy storage unit 204 to supply power to the thruster according to the preset time. When the satellite finishes the action and does not need to be powered any more, and the preset time is up, the main control unit 203 controls the energy storage unit 204 to stop powering, the currently required power of the thruster is reduced to be below the preset threshold, and the step S300 is returned to.
After the step S300, the method further includes:
step S301: detecting the current electric quantity of the energy storage unit 204;
it is easy to understand that the current charge of the energy storage unit 204 is detected and sent to the main control unit 203.
Step S302: and when the current electric quantity is larger than the threshold electric quantity of the energy storage unit, controlling the energy storage unit to receive the electric energy transmitted by the satellite power supply, transmitting the electric energy to the load, and not storing the electric energy.
It should be noted that, when the current electric quantity of the energy storage unit 204 reaches the threshold electric quantity, the energy storage unit 204 is controlled to receive the electric energy transmitted by the satellite power supply 100, and transmit the electric energy to the load 300, without storing the electric energy. At this point the device acts only as a pass-through and no longer stores electrical energy to avoid overcharging.
According to the method, on the basis of the first embodiment, power is supplied to the load according to the preset time, the contradiction that the power of the satellite is small but the power required by the power load is large is solved, the service lives of the device and the load are guaranteed, isolation is formed between the satellite power supply and the power load, instantaneous impact and disturbance on a satellite power supply system during the startup, shutdown and working processes of power-using equipment can be effectively prevented, and the stability and the working reliability of the satellite power supply system are greatly improved.
Furthermore, an embodiment of the present invention further provides a storage medium, where a satellite load power supply program is stored on the storage medium, and when being executed by a processor, the satellite load power supply program implements the steps of the satellite load power supply method as described above. Since the storage medium adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
The present invention further provides an apparatus, which at least has all the benefits brought by the technical solutions of the above embodiments because the apparatus employs all the technical solutions of all the above embodiments, and details are not repeated here.
The invention further provides a thruster, which at least has all the beneficial effects brought by the technical schemes of the embodiments because the thruster adopts all the technical schemes of all the embodiments, and the details are not repeated.
It should be understood that the above is only an example, and the technical solution of the present invention is not limited in any way, and in a specific application, a person skilled in the art may set the technical solution as needed, and the present invention is not limited thereto.
It should be noted that the above-described work flows are only exemplary, and do not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to actual needs, and the present invention is not limited herein.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g. Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g. a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A satellite load power supply apparatus, the apparatus comprising:
a first detection unit: the power control device is used for detecting the current required power of a load;
the main control unit: the power supply control device is used for cutting off a path between the load and a satellite power supply when the current required power is larger than a preset threshold value, and controlling an energy storage unit to supply power to the load;
an energy storage unit: and the power supply is used for receiving the electric energy transmitted by the satellite power supply when the current required power is smaller than a preset threshold value, transmitting the electric energy meeting the current required power to the load, and storing redundant electric energy.
2. The satellite load power supply apparatus of claim 1, wherein said apparatus further comprises:
and the second detection unit is used for detecting the current electric quantity of the energy storage unit.
3. The satellite load power supply device according to claim 2, wherein the main control unit is further configured to control the energy storage unit to supply power to the load according to a preset time; and when the current electric quantity is larger than the threshold electric quantity of the energy storage unit, controlling the energy storage unit to receive the electric energy transmitted by the satellite power supply, transmitting the electric energy to the load, and not storing the electric energy.
4. The satellite load power supply of claim 1, wherein an input of said device is connected to an output of said satellite power source and an output of said device is connected to a power input of said load.
5. A method for powering a satellite load, the method comprising:
detecting the current required power of a load;
when the current required power is larger than a preset threshold value, cutting off a path between the load and a satellite power supply, and controlling an energy storage unit to supply power to the load;
and when the current required power is smaller than a preset threshold value, receiving the electric energy transmitted by the satellite power supply, transmitting the electric energy meeting the current required power to the load, and storing redundant electric energy.
6. The method according to claim 5, wherein the step of cutting off the path between the load and the satellite power supply when the current required power is greater than the preset threshold value, and the step of controlling the energy storage unit to supply power to the load specifically comprises:
and when the current required power is larger than a preset threshold value, cutting off a path between the load and the satellite power supply, and controlling the energy storage unit to supply power to the load according to preset time.
7. The method for supplying power to a satellite load according to claim 6, wherein after the step of receiving the power transmitted by the satellite power source and transmitting the power satisfying the current required power to the load when the current required power is less than a preset threshold, and storing redundant power, the method further comprises:
detecting the current electric quantity of the energy storage unit;
and when the current electric quantity is larger than the threshold electric quantity of the energy storage unit, controlling the energy storage unit to receive the electric energy transmitted by the satellite power supply, transmitting the electric energy to the load, and not storing the electric energy.
8. An apparatus, characterized in that the apparatus comprises: memory, a processor and a satellite load power supply program stored on the memory and executable on the processor, the satellite load power supply program being configured to implement the steps of the satellite load power supply method according to any of claims 5-7.
9. A storage medium, characterized in that the storage medium has stored thereon a satellite load power supply program, which when executed by a processor implements the steps of the satellite load power supply method according to any one of claims 5 to 7.
10. A thruster, characterized in that the thruster comprises a satellite load power supply device according to any one of claims 1 to 4, or the thruster applies the satellite load power supply method according to any one of claims 5 to 7.
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| CN111864876A (en) * | 2020-07-06 | 2020-10-30 | 国网思极紫光(青岛)微电子科技有限公司 | Power supply method of dual-mode communication unit, dual-mode communication unit and intelligent electric energy meter |
| CN115954990A (en) * | 2023-03-10 | 2023-04-11 | 银河航天(西安)科技有限公司 | Method, system, device and storage medium for supplying power to a load of a satellite |
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| CN110182389A (en) * | 2019-06-04 | 2019-08-30 | 沈观清 | The full-automatic energy management system of near space unmanned plane combined dynamic system and method |
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| CN111864876A (en) * | 2020-07-06 | 2020-10-30 | 国网思极紫光(青岛)微电子科技有限公司 | Power supply method of dual-mode communication unit, dual-mode communication unit and intelligent electric energy meter |
| CN111864876B (en) * | 2020-07-06 | 2022-04-29 | 国网思极紫光(青岛)微电子科技有限公司 | Power supply method of dual-mode communication unit, dual-mode communication unit and intelligent electric energy meter |
| CN115954990A (en) * | 2023-03-10 | 2023-04-11 | 银河航天(西安)科技有限公司 | Method, system, device and storage medium for supplying power to a load of a satellite |
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