CN110654575A - Satellite load power supply device, method, device, storage medium and thruster - Google Patents

Abstract

The invention discloses a satellite load power supply device, which comprises: a first detection unit detects the current power required by the load; when the current required power is greater than a preset threshold, the main control unit cuts off the path between the load and the satellite power supply, The energy storage unit is controlled to supply power to the load; when the current required power is less than the preset threshold, the energy storage unit receives the electrical energy transmitted by the satellite power supply, and transmits the electrical energy that meets the current required power to the load to store redundant electrical energy. The above device can realize multiple short-time operations of high-power loads on low-power satellites, reduce the power requirements of high-power electrical loads on satellite power supplies, and form isolation between satellite power supplies and electrical loads, effectively preventing the The electrical equipment produces instantaneous impact and disturbance to the satellite power system during the on-off and working process. The invention also provides a satellite load power supply method, equipment, storage medium and thruster.

Description

Satellite load power supply device, method, device, storage medium and thruster

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 technique

There are many electronic devices on artificial satellites, especially for some high-power thrusters, such as high-power electric thrusters (Hall thrusters with a power of tens of kilowatts, and arc heating thrusters with a power of 1000 kilowatts). The large current generated during the start-up process will affect the operation of the satellite power supply and other on-board electrical equipment. In order to reduce this impact, many satellite companies have limited the charging current and working energy level of the electric thruster. This requirement is met at the expense of the performance of the thruster; secondly, the high-power thruster needs to consume a lot of energy when working, which will bring a great burden to the power supply of the satellite power supply. In order to increase the demand for electricity, it is necessary to increase the solar cell. The area of the windsurfing board increases the volume, weight and cost of the satellite; in addition, the electromagnetic interference generated by the discharge of the electric thruster will have an instant impact and disturbance on the satellite power system, which greatly affects the stability and reliability of the satellite power system. .

The above content is only used to assist the understanding of the technical solutions of the present invention, and does not mean that the above content is the prior art.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a satellite load power supply device, method, equipment, storage medium and thruster, aiming at solving the technical problem of the prior art that the satellite power supply power is small and the power required by the electric load is large.

In order to achieve the above purpose, the present invention provides a satellite load power supply device, the device includes:

The first detection unit: used to detect the current required power of the load;

Main control unit: when the current required power is greater than a preset threshold, cut off the path between the load and the satellite power supply, and control the energy storage unit to supply power to the load;

Energy storage unit: when the current required power is less than a preset threshold, receive the electrical energy transmitted by the satellite power supply, and transmit the electrical energy that meets the current required power to the load to store redundant electrical energy.

Preferably, the device further comprises:

The second detection unit is used to detect the current power 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; when the current electric quantity is greater than the threshold electric quantity of the energy storage unit, control the energy storage unit to receive the The power delivered by the satellite power source is delivered to the load without storing the power.

Preferably, the input end of the device is connected to the output end of the satellite power supply, and the output end of the device is connected to the power input end of the load.

In addition, in order to achieve the above purpose, the present invention also proposes a method for supplying power to a satellite load, the method comprising:

Detect the current required power of the load;

When the current required power is greater than the preset threshold, cut off the path between the load and the satellite power supply, and control the energy storage unit to supply power to the load;

When the current required power is less than a preset threshold, the electric power transmitted by the satellite power source is received, and the electric power satisfying the current required power is transmitted to the load, and redundant electric power is stored.

Preferably, the step of cutting off the path between the load and the satellite power supply when the current required power is greater than a preset threshold, and controlling the energy storage unit to supply power to the load specifically includes:

When the current required power is greater than a preset threshold, the path between the load and the satellite power source is cut off, and the energy storage unit is controlled to supply power to the load according to a preset time.

Preferably, when the current required power is less than a preset threshold, the step of receiving the electric energy transmitted by the satellite power supply, transmitting the electric energy satisfying the current required power to the load, and storing redundant electric energy Afterwards, the method further includes:

detecting the current power of the energy storage unit;

When the current electric energy is greater than the threshold electric energy of the energy storage unit, the energy storage unit is controlled to receive the electric energy transmitted by the satellite power supply, and transmit the electric energy to the load without storing the electric energy.

In addition, in order to achieve the above object, the present invention also proposes a device, the device includes: a memory, a processor, and a satellite load power supply program stored in the memory and running on the processor, the satellite load The power supply program is 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 also proposes a storage medium on which a satellite load power supply program is stored, and when the satellite load power supply program is executed by a processor, the steps of the above-mentioned satellite load power supply method are implemented .

In addition, in order to achieve the above objective, the present invention also provides a thruster, which includes the above-mentioned satellite load power supply device, or the above-mentioned satellite load power supply method is applied to the thruster.

The invention discloses a satellite load power supply device, method, equipment, storage medium and thruster. The device includes: a first detection unit: used to detect the current power required by the load; When the required power is greater than the preset threshold, the path between the load and the satellite power supply is cut off, and the energy storage unit is controlled to supply power to the load; The power transmitted by the satellite power source is transmitted to the load to meet the current required power, and redundant power is stored. Using the above device as a power source to supply power to a high-power electrical load can effectively reduce the power requirements of the high-power electrical load on the satellite power supply; avoid the satellite power supply's restrictions on the load current and working energy level, and avoid sacrificing the thruster for electric thrusters. This requirement occurs at the cost of performance.

Description of drawings

1 is a schematic structural diagram of a device of a hardware operating environment involved in an embodiment of the present invention;

Fig. 2 is the structural block diagram of the first embodiment of the satellite load power supply device of the present invention;

FIG. 3 is a schematic flowchart of the first embodiment of the satellite load power supply method according to the present invention;

4 is a structural block diagram of a second embodiment of a satellite load power supply device according to the present invention;

FIG. 5 is a schematic flowchart of a second embodiment of a method for powering a satellite load according to the present invention.

The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

Referring to FIG. 1 , FIG. 1 is a schematic diagram of a device structure of a hardware operating environment involved in an embodiment of the present invention.

As shown in FIG. 1 , the device may include: a processor 1001 , such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002 , and a memory 1003 . Among them, the communication bus 1002 is used to realize the connection and communication between these components. The memory 1003 may be a high-speed random access memory (Random Access Memory, RAM) memory, or may be a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory. Optionally, the memory 1003 may also be a storage device independent of the aforementioned processor 1001 .

Those skilled in the art can understand that the structure shown in FIG. 1 does not constitute a limitation on the device, and may include more or less components than those shown, or combine some components, or arrange different 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 device shown in FIG. 1 , the processor 1001 and the memory 1003 in the device of the present invention may be set in the device, and the device invokes the satellite load power supply program stored in the memory 1003 through the processor 1001 and executes the embodiment of the present invention Provided satellite load power supply method.

An embodiment of the present invention provides a satellite load power supply device. Referring to FIG. 2 , FIG. 2 is a structural block diagram of a first embodiment of a satellite load power supply device of the present invention.

The satellite load power supply device 200 includes: a first detection unit 201 , a main control unit 203 , and an energy storage unit 204 .

It should be noted that the input end of the satellite load power supply device 200 is connected to the output end of the satellite power supply 100 , and the output end of the satellite load power supply device 200 is connected to the input end 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 power supply. In this embodiment, a thruster is stated as a load onto which the satellite load power supply 200 may be integrated.

It is easy to understand that the satellite load power supply device 200 forms an isolation between the satellite power supply and the electrical load, which can effectively prevent the electrical equipment from causing instant impact and disturbance to the satellite power supply system during the switching on and off and working process, extremely The stability and working reliability of the satellite power system are greatly improved.

The first detection unit 201: used to detect the current power required by 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 periodic detection, real-time monitoring and trigger detection. In this embodiment, the thruster is used as the load for presentation. For example, when the thruster is started, the first detection unit 201 is triggered to detect the current power required by the load.

The main control unit 203 is configured to cut off the path between the load and the satellite power supply when the current required power is greater than a preset threshold, and control the energy storage unit 204 to supply power to the load;

It should be noted that, the preset threshold value is preset and stored in the memory of the main control unit 203, and in specific implementation, the preset threshold value can be set according to actual needs. In this embodiment, the thruster is used as the load to make a statement. For example, the preset threshold is set as the required power when the thruster is not working. When the thruster is working, it is detected that the current required power is greater than the preset threshold. Cut off the passage between the thruster and the satellite power supply, and control the energy storage unit 204 to supply power to the thruster, that is, when the thruster is working, only the energy storage unit 204 supplies power, and the rest of the loads can still be powered by the satellite power supply.

The energy storage unit 204 is configured to receive the electrical energy transmitted by the satellite power source 100 when the current required power is less than a preset threshold, and transmit the electrical energy that meets the current required power to the load 300, Store redundant power.

It should be noted that the energy storage unit is a power lithium battery in this embodiment, and the reason for selecting the lithium battery is that the lithium battery has a large energy storage capacity and is light, and will not bring additional weight burden to the satellite. In specific implementation, the energy storage unit can be a large-capacity chemical battery or a fuel cell, but it is not limited to the listed energy storage device types, and its purpose is to provide high-power power supply for the satellite load without affecting the volume, weight and Cost, energy storage devices that can meet the above objectives can be used in the present invention.

It should be noted that the satellite load power supply device 200 plays a role of a channel, does not affect the original circuit of the satellite power supply 100 supplying power to the electrical load 300, and only stores redundant power.

The device of this embodiment can store the electric energy generated by the satellite power supply, especially the redundant electric energy generated by the satellite power supply when the electricity load is small, in the energy storage unit, so as to achieve the effect of fully collecting the electric energy generated by the satellite power supply, and satisfies the The demand for high-power power consumption of satellite power load avoids the limitation of load current and working energy level by satellite power supply, and avoids the need for electric thrusters to meet this requirement at the expense of thruster performance. The energy storage device forms an isolation between the satellite power supply and the electrical load, which can effectively prevent the electrical equipment from causing instantaneous impact and disturbance to the satellite power supply system during the switching and working process, which greatly improves the stability and performance of the satellite power supply system. Work reliability.

Based on the first embodiment of the satellite load power supply device of the present invention, the present invention provides a satellite load power supply method. Referring to FIG. 3 , FIG. 3 is a schematic flowchart of the first embodiment of the satellite load power supply method of the present invention;

Step S100: Detecting the current power required by the load;

It should be noted that, in this embodiment, the thruster is used as the load. For example, the thruster starts to work, and the current required power of the thruster is detected.

Step S200: when the current required power is greater than a preset threshold, cut off the path between the load 300 and the satellite power source 100, and control the energy storage unit 204 to supply power to the load 300;

It should be noted that the preset threshold can be set according to actual requirements. For example, the preset threshold is set as the power required when the thruster is not working, and when the thruster is working, it is detected that the current required power is greater than the preset threshold, the passage between the thruster and the satellite power supply is cut off, and the energy storage is controlled. The unit 204 supplies power to the thruster, that is, when the thruster is working, it is only powered by the energy storage unit 204, and the rest of the loads can still be powered by the satellite power supply.

Step S300: When the current required power is less than a preset threshold, receive the electrical energy transmitted by the satellite power source 100, and transmit the electrical energy that meets the current required power to the load 200 to store redundant electrical energy.

It should be noted that, for example, the thruster does not work temporarily, it is detected that the current required power of the thruster is less than a preset threshold, and the electric energy transmitted by the satellite power supply 100 is received. The power is output to the rest of the loads and the redundant power is stored.

The method of this embodiment can store the electric energy generated by the satellite power supply, especially the redundant electric energy generated by the satellite power supply when the power load is small, in the energy storage unit, so as to achieve the effect of fully collecting the electric energy generated by the satellite power supply, and satisfy the The demand for high-power power consumption of satellite power load avoids the limitation of load current and working energy level by satellite power supply, and avoids the need for electric thrusters to meet this requirement at the expense of thruster performance.

Based on the first embodiment of a satellite load power supply device of the present invention, a second embodiment of a satellite load power supply device of the present invention is proposed. Referring to FIG. 4, FIG. 4 is a structural block diagram of the second embodiment of the satellite load power supply device of the present invention;

The satellite load power supply device 200 further includes: a second detection unit 202 .

The second detection unit 202 : used to detect the current power of the energy storage unit 204 .

It is easy to understand that the energy storage capacity of the energy storage unit 204 has an upper limit, and overcharging and overdischarging will consume the service life of the energy storage unit 204. Therefore, the second detection unit 202 is set to detect the energy storage unit. 204 , and send the current power value to the main control unit 203 .

The main control unit 203 is further configured to cut off the path between the load 300 and the satellite power source 100 when the current required power is greater than a preset threshold, and control the energy storage unit 204 to send the power to all the power sources according to the preset time. The load 300 is powered. When the current power is greater than the threshold power of the energy storage unit 204, 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.

It is easy to understand that, in consideration of the service life of the high-power electrical load and the service life of the energy storage unit 204, the preferred solution is to work according to the preset time. In this embodiment, the thruster is used. Make a statement for the load. For example, when the thruster starts and needs high-power power supply, the main control unit 203 cuts off the direct path between the thruster and the satellite power supply 100, and plans the power supply required by the thruster according to the current thrust required by the satellite. The duration is 200s, and 200s is set as a 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 completes the action, no power supply is required, and the preset time arrives, the main control unit 203 controls the energy storage unit 204 to stop supplying power. When the current required power of the thruster is reduced below a preset threshold, the energy storage unit 204 is controlled to receive the electrical energy transmitted by the satellite power source 100, and transmit the electrical energy that meets the current required power to the load 200, Store redundant power.

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. described electrical energy. At this time, the device only serves as a passage, and no longer stores electrical energy, so as to avoid overcharging.

The device of this embodiment, on the basis of the first embodiment, supplies power to the load according to the preset time, which solves the contradiction that the satellite electric power is small but the electric load needs large power, and ensures the service life of the device and the load. Isolation is formed between the electrical loads, which can effectively prevent the electrical equipment from causing instantaneous impact and disturbance to the satellite power system during the switching and working process, which greatly improves the stability and working reliability of the satellite power system.

Based on the second embodiment of the satellite load power supply device of the present invention, the present invention provides a satellite load power supply method. Referring to FIG. 5 , FIG. 5 is a schematic flowchart of the second embodiment of the satellite load power supply method according to the present invention;

The step S200 specifically includes:

S201: When the current required power is greater than a preset threshold, cut off the path between the load 300 and the satellite power source 100, and control the energy storage unit 204 to supply power to the load 300 according to a preset time.

It is easy to understand that, in consideration of the service life of the high-power electrical load and the service life of the energy storage unit, the preferred solution is to work according to the preset time. load statement. For example, when the thruster starts and needs high-power power supply, the main control unit 203 cuts off the direct path between the thruster and the satellite power supply 100, and plans the power supply required by the thruster according to the current thrust required by the satellite. The duration is 200s, and 200s is set as a 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 completes the action, no power supply is needed, and the preset time arrives, the main control unit 203 controls the energy storage unit 204 to stop supplying power, the current required power of the thruster is reduced to below the preset threshold, and the process returns to the step S300.

After the step S300, the method further includes:

Step S301: detecting the current power of the energy storage unit 204;

It is easy to understand that the current power of the energy storage unit 204 is detected, and the current power value is sent to the main control unit 203 .

Step S302: When the current power is greater than the threshold power of the energy storage unit, control the energy storage unit to receive the power transmitted by the satellite power supply, and transmit the power to the load without storing the power.

It should be noted that, when the current power of the energy storage unit 204 reaches the threshold power, the power 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. described electrical energy. At this time, the device only serves as a passage, and no longer stores electrical energy, so as to avoid overcharging.

The method of this embodiment, on the basis of the first embodiment, supplies power to the load according to the preset time, solves the contradiction that the satellite electric power is small but the electric load needs large power, and ensures the service life of the device and the load. Isolation is formed between the electrical loads, which can effectively prevent the electrical equipment from causing instantaneous impact and disturbance to the satellite power system during the switching and working process, which greatly improves the stability and working reliability of the satellite power system.

In addition, 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 the satellite load power supply program is executed by a processor, the steps of the satellite load power supply method as described above are implemented. Since the storage medium adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

The present invention also provides a device. Since the device adopts all the technical solutions of the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

The present invention also provides a thruster. Since the thruster adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not be repeated here.

It should be understood that the above are only examples, and do not constitute any limitation to the technical solutions of the present invention. In specific applications, those skilled in the art can make settings as required, which is not limited by the present invention.

It should be noted that the above-described workflow is only illustrative, and does not limit the protection scope of the present invention. In practical applications, those skilled in the art can select some or all of them to implement according to actual needs. The purpose of the solution in this embodiment is not limited here.

Furthermore, it should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or system comprising a series of elements includes not only those elements, but also other elements not expressly listed or inherent to such a process, method, article or system. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article or system that includes the element.

The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages or disadvantages of the embodiments.

From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on such understanding, the technical solutions of the present invention can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products are stored in a storage medium (such as a read-only memory). , ROM)/RAM, magnetic disk, optical disk), including several instructions to make a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) execute the methods described in the various embodiments of the present invention.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields , are similarly included in the scope of patent protection 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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