Dual hyper-satellite and its dynamic and static platform power transmission method

Abstract

The application provides a double-super-satellite and an electric energy transmission method of a dynamic platform and a static platform, and comprises the following steps: suspension and contact locking between the dynamic platform and the static platform of the satellite, electric energy multi-mode transmission between the dynamic platform and the static platform of the satellite, electric energy multi-mode switching between the dynamic platform and the static platform of the satellite, and respectively rotating internal electricity of the dynamic platform and the static platform. The application can eliminate the interference and influence of the active components such as solar wings and flywheels on the dynamic platform on the observation and imaging precision and stability during the on-orbit observation task, can ensure the safe and reliable power supply of the static platform during the non-observation period, can select three electric energy transmission modes of wired cable, suspension cableless and telescopic cable fixed connection according to the current mode, and can also reduce the load power of the dynamic platform while avoiding the risk of instantaneous power failure of the static platform in the process of switching the electric energy transmission mode between the dynamic platform and the static platform under the condition that the electric energy transmission channel between the dynamic platform and the static platform is disconnected, so as to ensure the energy safety of the dynamic platform.

Description

Technical Field

[0001] This invention relates to the field of energy supply and transmission technology between the dynamic and static platforms of dual supersonic satellites, and more specifically, to a method for transmitting electrical energy between dual supersonic satellites and their dynamic and static platforms. Background Technology

[0002] Space science exploration missions, exemplified by the Sun, and scientific payloads such as solar space telescopes, typically require pointing accuracy and stability from satellite platforms that are two orders of magnitude higher than those for conventional satellites. This is because the pointing accuracy and stability of conventional satellites are often less than ideal due to the influence of moving components such as solar panels and flywheels.

[0003] The dual-mode satellite platform breaks away from the conventional design method of fixing satellite payloads to the satellite platform, proposing a novel concept of dynamic-static isolation, providing a satellite platform with ultra-high pointing accuracy and ultra-high stability for scientific payloads. However, this dynamic-static isolation design introduces challenges in power supply and transmission between the dynamic and static platforms for the entire satellite's power distribution.

[0004] A search of existing technologies revealed the following:

[0005] Patent document CN106314827A discloses a master-slave non-contact dual-super satellite platform inter-module energy transmission system. It mainly describes how the platform module provides power to the payload module through an inter-module energy transmission on / off mechanism. The energy transmission plug and socket are connected and disconnected by the forward and reverse rotation of the drive mechanism. The system focuses on using a motor drive to control the disconnection of the plug and socket, thus establishing an inter-module energy transmission channel.

[0006] The master's thesis from Nanjing University of Aeronautics and Astronautics, "Power Conversion and Management Between Space Station Modules," mainly discusses the power conversion schemes between modules. The core module and auxiliary modules adopt direct power conversion, direct power conversion between modules, and grid-connected control type indirect power conversion schemes. It focuses on the basic working principle of the conversion circuit topology and the multi-redundancy design of key parameters, as well as experimental verification.

[0007] Patent document CN207098765U discloses a non-contact power transmission device, which mainly describes the design and implementation of a power conversion device. It uses a concave-convex magnetic core, a coil, and a switching transistor bridge circuit to realize a non-contact power transmission device, which meets the needs of efficient charging and convenient battery swapping of battery packs.

[0008] None of the existing technologies mentioned above can solve the problem of power transmission and switching between modules under the levitation / locking conditions of the dynamic and static platforms during on-orbit observation and non-observation missions of the dual-super satellite. Summary of the Invention

[0009] To address the shortcomings of existing technologies, the purpose of this invention is to provide a method for power transmission between dual supersonic satellites and their dynamic and static platforms.

[0010] A method for power transmission between a dual-satellite dynamic and static platform according to the present invention includes:

[0011] When the satellite is performing observation missions in orbit, the static platform is suspended above the dynamic platform; when the satellite is not performing observation missions in orbit, the static and dynamic platforms are locked together in contact.

[0012] The satellite uses three power transmission methods between its dynamic and static platforms: wired cable, suspended cableless, and telescopic cable fixed connection, with the dynamic platform transmitting the required power to the static platform.

[0013] The power transmission method used between the satellite's static and dynamic platforms switches between three power transmission methods: wired cable, suspended cableless, and fixed connection with telescopic cable.

[0014] Preferably, when the satellite is performing observation and imaging missions in orbit, the moving platform releases the static platform, which then suspends above the moving platform. Power is transmitted between the moving and static platforms via wired cable and levitated cableless methods, with the moving platform transmitting the required power to the static platform. When the wired cable connection is remotely detached via a command, the moving platform switches to a levitated cableless method, using a non-contact transmitter and receiver regulator to convert electrical energy into magnetic field energy and back to electrical energy, thus transmitting power to the static platform.

[0015] Preferably, when the satellite is in orbit and not performing observation and imaging tasks, the dynamic and static platforms are locked together, and the power is transmitted between the dynamic and static platforms via wired cables to provide power to the loads of the dynamic and static platforms. When energy is sufficient, the surplus power is used to charge the battery storage devices of each dynamic and static platform.

[0016] Preferably, the wired cable connection adopts a disconnection device, which realizes the one-time disconnection of the wired cable between the moving and stationary platforms by sending control commands; the suspended cable adopts a wireless power transmission device, which realizes the conversion of electrical energy to magnetic field energy and back to electrical energy by using a non-contact transmitter regulator and receiver regulator; the telescopic cable fixed connection adopts a drive telescopic mechanism to control the translation of the cable, so that the electrical connectors at both ends of the cable can be repeatedly connected or disconnected.

[0017] Preferably, depending on the needs of the on-orbit observation mission, the satellite autonomously switches from wired cable transmission to suspended cableless transmission, or vice versa; when the wired cable transmission or suspended cableless power transmission path fails, it switches to a telescopic cable fixed connection transmission method.

[0018] Preferably, the satellite's dynamic and static platforms are each equipped with a battery pack energy storage device. Depending on the needs of the satellite's on-orbit observation mission or when it enters a shadow period, the power transmission method between the satellite's dynamic and static platforms, which uses wired cables, suspended cables, or telescopic cables for fixed connection, can be disconnected. The dynamic and static platforms can then switch to internal power and rely on their respective battery packs for power.

[0019] Preferably, the satellite sends control commands in orbit to cause the cable to detach freely, disconnecting the transmission path connecting the dynamic and static platforms. Once disconnected, this transmission path cannot be restored.

[0020] Preferably, after the satellite's dynamic and static platforms separate in orbit, a transmission path is formed using a suspended cableless power transmission method, through which the dynamic platform transmits power to the static platform. This transmission path can be restored if it is disconnected.

[0021] Preferably, the power transmission between the satellite's static and dynamic platforms uses wired cables and suspended cableless power transmission methods. After an on-orbit failure, the telescopic mechanism is driven to control the translation of the telescopic cable, so that the electrical connectors at both ends of the cable can be repeatedly connected or disconnected.

[0022] According to the present invention, a dual-supersatellite is provided, using the aforementioned dual-supersatellite dynamic and static platform power transmission method.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The power transmission scheme of the floating and contact locking mode between the satellite dynamic and static platforms proposed in this invention can not only eliminate the interference of moving parts such as solar panels and flywheels on the observation and imaging accuracy and stability during on-orbit observation missions, but also ensure the safe and reliable power supply of the static platform during non-observation periods.

[0025] 2. The proposed solution for multi-mode power transmission and switching between satellite dynamic and static platforms can select from three power transmission modes according to the current mode: wired cable, suspended cableless, and telescopic cable fixed connection.

[0026] 3. The satellite dynamic and static platforms switching to internal power scheme proposed in this invention can rely on their own battery packs and other energy storage devices when the power transmission channel between the dynamic and static platforms is disconnected. This can avoid the risk of instantaneous power outage of the static platform during the power transmission mode switching between the dynamic and static platforms, reduce the load power of the dynamic platform, and ensure the energy security of the dynamic platform. Attached Figure Description

[0027] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0028] Figure 1 This is a block diagram of the power transmission of the dual-satellite dynamic and static platform. Detailed Implementation

[0029] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0030] In order to achieve ultra-high pointing accuracy and ultra-high stability in satellite observation and imaging of celestial bodies such as the Sun, in addition to adopting high-precision control algorithms and measurement devices, it is also necessary to eliminate interference caused by the satellite's own vibration, thereby improving the pointing accuracy and stability of the target celestial body.

[0031] The dual-supersatellite comprises a dynamic platform and a static platform. The dynamic platform houses two solar arrays that convert solar energy into electrical energy to power individual devices on the platform. The static platform is equipped with scientific payloads such as a solar telescope, enabling solar observation and imaging. Given the non-fixed, rigid connection between the satellite's dynamic and static platforms, the satellite must provide stable energy to both the control devices and measuring instruments on the dynamic platform and the observation and imaging payloads on the static platform. The energy transfer method for the dual-supersatellite's dynamic and static platforms proposed in this invention solves the challenges of stable energy transfer and reliable, safe switching between the two platforms, and has significant reference value.

[0032] Individual devices on the static satellite platform require a stable and continuous energy supply from the dynamic platform. This invention provides a method for power transmission between the static and dynamic platforms of a dual-satellite system, comprising: levitation and contact locking between the static and dynamic satellite platforms; multi-mode power transmission between the static and dynamic satellite platforms; multi-mode power switching between the static and dynamic satellite platforms; and separate internal power transfer between the static and dynamic satellite platforms.

[0033] The aforementioned suspension and contact locking between the satellite's static and dynamic platforms refers to the static platform being suspended above the dynamic platform as needed when the satellite is performing observation tasks in orbit, reducing interference from the dynamic platform's control device; when the satellite is not performing observation tasks in orbit, the static and dynamic platforms are locked together to ensure the satellite's flight safety.

[0034] When the satellite is in orbit and not performing observation and imaging missions, the dynamic and static platforms are locked together. The power is transmitted between the dynamic and static platforms via wired cables to provide power to the loads of the dynamic and static platforms. When energy is sufficient, the surplus power can charge the battery storage devices of each dynamic and static platform.

[0035] When the satellite is performing observation and imaging missions in orbit, the moving platform releases the static platform, which then suspends above the moving platform. Power is transmitted between the moving and static platforms via wired cables and levitated cableless systems, with the moving platform supplying the static platform with the necessary power. When the wired cable system detaches remotely via a command, the moving platform switches to a levitated cableless system, using non-contact transmitter and receiver regulators to convert electrical energy into magnetic field energy and back to electrical energy, thus transmitting power to the static platform.

[0036] The aforementioned multi-mode power transmission between the satellite's static and dynamic platforms refers to three power transmission methods: wired cable, suspended cableless connection, and telescopic cable fixed connection. The dynamic platform transmits the required power to the static platform. Specifically, the wired cable connection employs a disconnection device, which achieves a one-time disconnection of the wired cable between the static and dynamic platforms by sending a control command. The suspended cableless connection uses a wireless power transmission device, employing a non-contact transmitter and receiver regulator to achieve the conversion of electrical energy into magnetic field energy and back into electrical energy. The fixed connection of the telescopic cable uses a drive telescopic mechanism to control the translation of the cable, allowing the electrical connectors at both ends of the cable to be repeatedly connected or disconnected.

[0037] The aforementioned multi-mode switching of power transmission between the satellite's static and dynamic platforms refers to the use of three power transmission methods between the platforms: wired cable, suspended cableless, and retractable cable fixed connection. Depending on the needs of the on-orbit observation mission, the satellite can autonomously switch from the wired cable transmission method to the suspended cableless transmission method, or vice versa. In the event of a failure in either the wired cable or suspended cableless power transmission path, the system can switch back to the retractable cable fixed connection transmission method, ensuring the energy security of the static platform.

[0038] The separate switching of satellite dynamic and static platforms to internal power means that each satellite dynamic and static platform is equipped with a battery pack for energy storage. Depending on the needs of the satellite's on-orbit observation mission or when it enters a shadow period, the three power transmission methods used to connect the satellite dynamic and static platforms—wired cable, suspended cableless connection, and telescopic cable—can be disconnected, and each platform switches to its own internal power supply, relying on its battery pack for power. This avoids the risk of momentary power outages on the static platform during the switching of power transmission methods and reduces the load on the dynamic platform, ensuring the energy security of the dynamic platform.

[0039] The satellite can send control commands while in orbit to freely disconnect the cable connection between the dynamic and static platforms, eliminating the disturbance of the wired cable to the pointing accuracy and stability of the satellite's static platform. This transmission path is irreversible once disconnected.

[0040] After the satellite's dynamic and static platforms separate in orbit, the aforementioned levitated cableless power transmission method can be used to transmit power from the dynamic platform to the static platform. This transmission path can be restored if it is interrupted.

[0041] In the event of an on-orbit failure of the wired cable between the satellite's static and dynamic platforms or the aforementioned suspended cableless power transmission method, a telescopic mechanism can be driven to control the translational movement of the telescopic cable, thereby connecting or disconnecting the electrical connectors at both ends of the cable. This transmission path can be repeatedly connected and disconnected.

[0042] In summary, this invention is based on a satellite-based dynamic-static isolation design. On the one hand, the dynamic platform cannot directly supply energy to the static platform using conventional satellite power supply and distribution methods. On the other hand, it is necessary to switch between wired cable and suspended cableless energy transmission channels between the dynamic and static platforms according to the needs of the satellite's on-orbit observation mission, so as to eliminate the interference of wired cables to the static platform and provide a platform with ultra-high pointing accuracy and ultra-high stability for scientific payloads such as solar space telescopes.

[0043] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A method for power transmission on a dual-satellite dynamic and static platform, characterized in that, include: When the satellite is performing observation missions in orbit, the static platform is suspended above the dynamic platform; When the satellite is in orbit and not performing an observation mission, the dynamic and static platforms are locked together. The satellite uses three power transmission methods between its dynamic and static platforms: wired cable, suspended cableless, and telescopic cable fixed connection, with the dynamic platform transmitting the required power to the static platform. The power transmission method used between the satellite's static and dynamic platforms switches between three power transmission methods: wired cable, suspended cableless, and fixed connection with telescopic cable. When the wired cable transmission method or the suspended cableless power transmission path fails, switch to the telescopic cable fixed connection transmission method.

2. The power transmission method for dual-satellite dynamic and static platforms according to claim 1, characterized in that, When the satellite is performing observation and imaging missions in orbit, the moving platform releases the static platform, which then suspends above the moving platform. Power is transmitted between the moving and static platforms via wired cables and levitated cableless methods, with the moving platform supplying the static platform with the necessary power. When the wired cable connection is remotely detached via a command, the moving platform switches to a levitated cableless method, using a non-contact transmitter and receiver regulator to convert electrical energy into magnetic field energy and back to electrical energy, thus transmitting power to the static platform.

3. The power transmission method for dual-satellite dynamic and static platforms according to claim 1, characterized in that, When the satellite is in orbit and not performing observation and imaging tasks, the dynamic and static platforms are locked together. The power is transmitted between the dynamic and static platforms via wired cables to provide power to the loads of the dynamic and static platforms. When energy is sufficient, the surplus power is used to charge the battery storage devices of each dynamic and static platform.

4. The power transmission method for dual-satellite dynamic and static platforms according to claim 1, characterized in that, Wired cable connections utilize a disconnection device, which sends control commands to disconnect the wired cable between the moving and stationary platforms in one go; the suspended cableless system employs a wireless power transmission device, using non-contact transmitter and receiver regulators to convert electrical energy into magnetic field energy and back into electrical energy. The telescopic cable is fixedly connected by a drive telescopic mechanism to control the translation of the cable, so that the electrical connectors at both ends of the cable can be repeatedly connected or disconnected.

5. The power transmission method for dual-satellite dynamic and static platforms according to claim 1, characterized in that, Depending on the needs of the on-orbit observation mission, the satellite can autonomously switch from wired cable transmission to suspended cableless transmission, or vice versa.

6. The power transmission method for dual-satellite dynamic and static platforms according to claim 1, characterized in that, Each of the satellite's dynamic and static platforms is equipped with a battery pack for energy storage. Depending on the needs of the satellite's on-orbit observation mission or when it enters a shadow period, the power transmission method between the satellite's dynamic and static platforms, which uses wired cables, suspended cables, or telescopic cables for fixed connection, can be disconnected. The dynamic and static platforms then switch to internal power and rely on their respective battery packs for power.

7. The power transmission method for dual-satellite dynamic and static platforms according to claim 1, characterized in that, The satellite sends control commands in orbit, causing the cable to detach and disconnect the transmission path connecting the dynamic and static platforms. Once disconnected, this transmission path cannot be restored.

8. The power transmission method for dual-satellite dynamic and static platforms according to claim 1, characterized in that, After the satellite's dynamic and static platforms separate in orbit, a transmission path is formed using a suspended, cable-free power transmission method, allowing the dynamic platform to supply power to the static platform. This transmission path can be restored if it is disconnected.

9. The power transmission method for dual-satellite dynamic and static platforms according to claim 1, characterized in that, In the event of an on-orbit failure, the satellite's dynamic and static platforms use wired cables and suspended cableless power transmission methods. The telescopic mechanism controls the translation of the telescopic cable to enable the electrical connectors at both ends of the cable to be repeatedly connected or disconnected.

10. A dual-supersatellite, characterized in that, The power transmission method of the dual supersonic satellite dynamic and static platform according to any one of claims 1 to 9.

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