An automatic intelligent distribution system for space station power supply

Abstract

The application discloses a space station power supply automatic intelligent distribution system, comprising: a plurality of solar power supply units; a plurality of lithium battery power supply and distribution units connected with the plurality of solar power supply units; a power supply automatic intelligent distribution unit connected with each of the solar power supply units and each of the power supply and distribution units, wherein the power supply automatic intelligent distribution unit calculates parameters in each of the solar power supply units and each of the lithium battery power supply and distribution units to realize intelligent distribution of energy of the space station power supply and distribution system; compared with the prior art, the space station power supply automatic intelligent distribution system adopts a mode of intelligently distributing power supply and distribution coefficients of the entire power supply and distribution unit, realizes effective utilization of system energy, and ensures long-time reliable operation of the entire power generation system by outputting different electric energy according to different capacities of each power supply and distribution system.

Description

Technical Field

[0001] This invention relates to the field of power energy management technology, and specifically to an automatic intelligent power distribution system for a space station. Background Technology

[0002] With the initial establishment of my country's space station, long-term on-orbit operation has become an indispensable requirement. The space station's power system provides energy support for the normal operation of the space station and is a reliable guarantee for the long-term stable operation of the entire space station.

[0003] The space station's power supply and distribution system consists of solar cell arrays and lithium-ion battery arrays. The characteristics of each solar cell in the solar cell array cannot be guaranteed to be completely identical, and the lithium-ion batteries in the lithium-ion battery array also have different characteristics. This leads to inconsistent energy characteristics among the various solar cell arrays and lithium-ion battery arrays during long-term operation. If each battery array with inconsistent characteristics is still allocated power on an average basis, it will accelerate the aging of the cells with poorer energy characteristics, and may even cause individual battery arrays to malfunction, seriously affecting the stability and reliability of the system. To ensure the long-term stable and reliable operation of the entire space station's power system, it is necessary to ensure a balanced average lifespan for each independent power supply and distribution unit. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic intelligent power distribution system for space stations. It aims to solve the problem in existing technologies where the power supply for space stations cannot intelligently allocate power to batteries with inconsistent characteristics, thus accelerating the aging of cells with poor energy performance within the battery array.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] This invention provides an automatic intelligent power distribution system for a space station, which is applied to the power supply and distribution system of a space station, including:

[0007] Several solar power units;

[0008] Several lithium battery power distribution units are connected to several of the aforementioned solar power supply units;

[0009] An automatic intelligent power distribution unit is connected to each of the solar power supply units and each of the power distribution units.

[0010] The automatic intelligent power distribution unit calculates the parameters of each solar power supply unit and each lithium battery power supply unit to obtain the adjustment coefficients of each solar power supply unit and each lithium battery power supply unit, so as to realize the intelligent distribution of energy of the space station power supply system.

[0011] Preferably, the parameters of each solar power supply unit include: the voltage of each solar power supply unit sampled respectively;

[0012] The parameters of each lithium battery power supply and distribution unit include: the current of each lithium battery power supply and distribution unit sampled separately and the individual cell characteristic parameters of each lithium battery power supply and distribution unit.

[0013] Preferably, each of the solar power supply units includes:

[0014] A solar cell array, which is used to generate electricity for the solar power supply unit;

[0015] A power supply coefficient regulator, whose first end is connected to the first end of the solar cell array, configures the power supply energy of the solar power supply unit to realize intelligent energy distribution of the solar cell array;

[0016] The shunt circuit has its first end connected to the second end of the power supply coefficient regulator and its second end connected to the second end of the solar cell array. After the second end of the shunt circuit is connected to the second end of the solar cell array, it is connected in parallel with the positive terminal of each solar power supply unit. After the parallel connection, it is connected to the common negative bus. The shunt circuit is used to share part of the current in the solar power supply unit.

[0017] A first isolation diode has its first end connected in parallel with the negative terminal of each of the solar power supply units and then connected to a common positive bus. Its second end is connected to the third terminal of the shunt circuit. The first isolation diode is used to unidirectionally conduct the current transmitted through the third terminal of the shunt circuit.

[0018] Preferably, the automatic intelligent power distribution unit is connected to each of the power supply coefficient regulators to input the adjustment coefficient of each of the solar power supply units to the corresponding power supply coefficient regulator.

[0019] Preferably, the specific steps for obtaining the adjustment coefficient of each solar power supply unit are as follows:

[0020] The automatic intelligent power distribution unit collects the voltage of each of the solar power supply units;

[0021] Establish a neural network model;

[0022] The neural network model collects the voltage of each of the solar power supply units;

[0023] The voltages of several of the solar power supply units are input to the input layer of the neural network model;

[0024] Based on the coupling weight coefficient matrix of the hidden layer of the neural network model, the voltage of several solar power supply units is adjusted to obtain the adjusted data of the hidden layer, and then output to the output layer of the neural network model.

[0025] Based on the coupling weight coefficient of the output layer, the data after adjustment of the hidden layer is adjusted to obtain the adjustment coefficient of each solar power supply unit.

[0026] Preferably, the single-cell characteristic parameters of the lithium battery power supply and distribution unit include any one or any combination of single-cell temperature, single-cell voltage, and dynamic impedance.

[0027] Preferably, each of the lithium battery power supply and distribution units includes:

[0028] A lithium battery array, used for power supply and distribution of the lithium battery power supply and distribution unit;

[0029] A discharge coefficient regulator, which is used to dynamically adjust the discharge coefficient of the lithium battery array;

[0030] A charging coefficient regulator, the first end of which is connected in parallel with the first end of the discharging coefficient regulator, and the two are connected in parallel to the first end of the lithium battery array, for dynamically adjusting the charging coefficient of the lithium battery array.

[0031] A discharge converter, the first end of which is connected to the second end of the discharge coefficient regulator, is used to adjust the discharge voltage of the corresponding lithium battery array;

[0032] A charging converter, the first end of which is connected to the second end of the charging coefficient regulator, is used to adjust the charging voltage of the corresponding lithium battery array;

[0033] The second isolation diode has its first end connected to the second end of the discharge converter, and its second end is connected in parallel with the positive terminal of each lithium battery power supply unit and then connected to the common positive bus.

[0034] The third isolation diode has its first terminal connected to the second terminal of the charging converter, and its second terminal connected in parallel with the positive terminal of each lithium battery power distribution unit and then connected to a common positive bus. Both the second and third isolation diodes are used to ensure unidirectional current conduction in the circuit of the lithium battery power distribution unit.

[0035] The second end of the lithium battery array is connected in parallel with the negative terminal of each lithium battery power supply and distribution unit and then connected to a common negative bus.

[0036] Preferably, the adjustment coefficient of each lithium battery power supply and distribution unit includes a charging coefficient and a discharging coefficient.

[0037] Preferably, the specific steps for obtaining the charging coefficient of each lithium battery power distribution unit are as follows:

[0038] The automatic intelligent power distribution unit collects the voltage of each solar power supply unit and the current of each lithium battery power distribution unit.

[0039] The charging coefficient of each lithium battery power supply unit is obtained based on the coupling weight coefficient matrix of the solar power supply unit, the single cell characteristic parameters of the lithium battery power supply and distribution unit, and the coupling weight coefficient matrix of the lithium battery power supply and distribution unit.

[0040] Preferably, the specific steps for obtaining the discharge coefficient of each lithium battery power supply and distribution unit are as follows:

[0041] The automatic intelligent power distribution unit collects the current of each of the lithium battery power distribution units;

[0042] The current from several of the lithium battery power distribution units is input to the input layer of the automatic intelligent power distribution unit;

[0043] Based on the coupling weight coefficient matrix of the hidden layer of the automatic intelligent power allocation unit, the data input to the input layer is adjusted to obtain the adjusted data of the hidden layer, and then output to the output layer of the automatic intelligent power allocation unit.

[0044] Based on the coupling weight coefficient of the output layer, the data of the hidden layer is adjusted to obtain the discharge coefficient of each lithium battery power supply and distribution unit.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] The intelligent power distribution system for space stations proposed in this invention, compared with the prior art, adopts an intelligent allocation of power distribution coefficients for the entire power distribution unit, thereby achieving effective utilization of system energy. At the same time, it outputs different electrical energy according to the different capabilities of each power distribution system, ensuring the long-term reliable operation of the entire power generation system. Attached Figure Description

[0047] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the drawings described below are one embodiment of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort:

[0048] Figure 1 This is a calculation diagram of the power supply and distribution regulation coefficient allocation for a space station in the illumination area, provided in an embodiment of the present invention.

[0049] Figure 2 This is a calculation diagram of the discharge coefficient allocation for the lithium battery power supply and distribution unit in the shadow zone of a space station, provided in an embodiment of the present invention.

[0050] Figure 3 This is an overall block diagram of an automatic intelligent power distribution system for a space station provided in an embodiment of the present invention.

[0051] Explanation of reference numerals in the attached diagram: 10-Lithium battery power supply and distribution unit, 11-Lithium battery array, 12-Discharge coefficient regulator, 13-Discharge converter, 14-Charging coefficient regulator, 15-Charging converter, 16-Solar power supply unit, 17-Solar cell array, 18-Power supply coefficient regulator, 19-Shunting circuit. Detailed Implementation

[0052] The following is in conjunction with the appendix Figure 1-3 The following detailed description of the proposed automatic intelligent power distribution system for space stations further illustrates the present invention. The advantages and features of the present invention will become clearer from the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, used only to facilitate and clearly illustrate the embodiments of the present invention. Please refer to the accompanying drawings to make the objectives, features, and advantages of the present invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by the present invention, should still fall within the scope of the technical content disclosed in the present invention.

[0053] Given that existing space station power supplies cannot intelligently allocate power to batteries with inconsistent characteristics, thus accelerating the aging of units with poor energy performance within the battery array, this embodiment provides an automatic intelligent power allocation system for a space station, comprising: several solar power supply units (such as...) Figure 3 The solar power supply unit shown is 16, 26, ..., n6; several lithium battery power supply and distribution units (such as...). Figure 3 The lithium battery power supply and distribution unit 10, lithium battery power supply and distribution unit 20, ..., lithium battery power supply and distribution unit n0 shown are connected to several of the solar power supply units; the automatic intelligent power distribution unit is connected to several of the solar power supply units and several of the power supply and distribution units respectively.

[0054] The automatic intelligent power distribution unit calculates the parameters of several solar power supply units and several lithium battery power distribution units to obtain the adjustment coefficient of each solar power supply unit and each lithium battery power distribution unit, so as to realize the intelligent distribution of energy of the space station power supply and distribution system.

[0055] The parameters of the plurality of solar power supply units and the plurality of lithium battery power supply and distribution units include: the voltages of the plurality of solar power supply units, V11, V12, ..., V1n, respectively sampled; the currents of the plurality of lithium battery power supply and distribution units, I21, I22, ..., I2n, respectively sampled; and the individual cell characteristic parameters of the plurality of lithium battery power supply and distribution units, wherein the individual cell characteristic parameters of the lithium battery power supply and distribution units include any one or any combination thereof of cell temperature, cell voltage and dynamic impedance.

[0056] Please refer to Figure 3 As shown, several solar power supply units have the same structure. The following description uses solar power supply unit 16 as an example. Solar power supply unit 16 includes: a solar cell array for generating electricity; a power supply coefficient regulator 18, whose first terminal is connected to the first terminal of the solar cell array 17, configuring the power supply energy of the solar power supply unit 16 to achieve intelligent energy distribution of the solar cell array 17; a shunt circuit 19, whose first terminal is connected to the second terminal of the power supply coefficient regulator 18, and whose second terminal is connected to the second terminal of the solar cell array 17. The second terminal of the shunt circuit 19, after being connected to the second terminal of the solar cell array 17, is connected in parallel with the positive terminal of each solar power supply unit 16. The shunt circuit 19 is used to share part of the current in the solar power supply unit 16, and the aforementioned parallel connection is connected to a common negative busbar; and a first isolation diode D. 11 Its first end is connected in parallel with the negative terminal of each of the solar power supply units 16 and then connected to the common positive bus. Its second end is connected to the third end of the shunt circuit 19. The first isolation diode D 11 The current transmitted at the third terminal of the shunt circuit 19 is used for unidirectional conduction, and the power supply automatic intelligent allocation coefficient k 11 Input to power supply coefficient regulator 18.

[0057] The specific steps for obtaining the adjustment coefficient of each solar power supply unit 16 are as follows: A neural network model is established; the neural network model collects the voltage of each solar power supply unit; the voltages of several solar power supply units are input to the input layer of the neural network model; the voltages of several solar power supply units are adjusted according to the coupling weight coefficient matrix of the hidden layer of the neural network model to obtain the adjusted data of the hidden layer, and this adjusted data is output to the output layer of the neural network model; the adjusted data of the hidden layer is adjusted according to the coupling weight coefficient of the output layer to obtain the adjustment coefficient k of each solar power supply unit. 12 , ......, k 1n .

[0058] The automatic intelligent power distribution unit is connected to each of the power supply coefficient regulators to input the adjustment coefficient of each of the solar power supply units to the corresponding power supply coefficient regulator.

[0059] Please continue to refer to this. Figure 3 As shown, several lithium battery power supply and distribution units have the same structure. The following description uses lithium battery power supply and distribution unit 10 as an example. Lithium battery power supply and distribution unit 10 includes: a lithium battery array 11, used for power supply and distribution; a discharge coefficient regulator 12, used for dynamically adjusting the discharge coefficient of the lithium battery array 11; a charging coefficient regulator 14, whose first terminal is connected in parallel with the first terminal of the discharge coefficient regulator 12, and the two are then connected to the first terminal of the lithium battery array 11, used for dynamically adjusting the charging coefficient of the lithium battery array 11; a discharge converter 13, whose first terminal is connected to the second terminal of the discharge coefficient regulator 12, used for adjusting the discharge voltage of its corresponding lithium battery array; a charging converter 15, whose first terminal is connected to the second terminal of the charging coefficient regulator 14, used for adjusting the charging voltage of its corresponding lithium battery array 11; and a second isolation diode D. 21 Its first end is connected to the second end of the discharge converter, and the second isolation diode D 21 The second terminal is connected in parallel with the positive terminal of each of the lithium battery power distribution units and then connected to the common positive bus; the third isolation diode D 31 Its first terminal is connected to the second terminal of the charging converter, and the third isolation diode D 31 The second terminal of the lithium battery array is connected in parallel with the positive terminal of each lithium battery power supply unit and then connected to the common positive bus. The second terminal of the lithium battery array is connected in parallel with the negative terminal of each lithium battery power supply unit and then connected to the common negative bus. The second isolation diode D 21 and the third isolation diode D 31Both are used for unidirectional current conduction in the circuit of the lithium battery power supply and distribution unit.

[0060] The current I21 between the positive terminal of the lithium battery array 11 and the left end of the discharge coefficient regulator 12 and the charge coefficient regulator 14 is sampled; the negative terminal of the lithium battery array 11 is connected in parallel with each lithium battery power supply and distribution unit and then directly connected to the common negative bus; the coefficient k, which is automatically and intelligently distributed by the power supply, is then used to... 21 The input is given to the discharge coefficient regulator 12, and the coefficient k is automatically and intelligently allocated by the power supply. 31 Input to charging coefficient regulator 14.

[0061] The adjustment coefficient of each lithium battery power supply and distribution unit includes a charging coefficient and a discharging coefficient.

[0062] The specific steps for obtaining the charging coefficient of each lithium battery power supply and distribution unit are as follows: the automatic intelligent power distribution unit collects the voltage of each solar power supply unit and the current of each lithium battery power supply and distribution unit; based on the coupling weight coefficient matrix of the solar power supply unit, the individual cell characteristic parameters of the lithium battery power supply and distribution unit, and the coupling weight coefficient matrix of the lithium battery power supply and distribution unit, the charging coefficient k of each lithium battery power supply and distribution unit is obtained. 31 , ......, k 3n .

[0063] The specific steps for obtaining the discharge coefficient of each lithium battery power supply and distribution unit are as follows: the automatic intelligent power distribution unit collects the current of each lithium battery power supply and distribution unit; the currents of several lithium battery power supply and distribution units are input to the input layer of the automatic intelligent power distribution unit; according to the coupling weight coefficient matrix of the hidden layer of the automatic intelligent power distribution unit, the data input to the input layer is adjusted to obtain the adjusted data of the hidden layer, and output to the output layer of the automatic intelligent power distribution unit; according to the coupling weight coefficient of the output layer, the adjusted data of the hidden layer is adjusted to obtain the discharge coefficient k of each lithium battery power supply and distribution unit. 21 , ......, k 2n .

[0064] The automatic intelligent power distribution unit is connected to each of the charging coefficient regulators to input the charging coefficient of each lithium battery power distribution unit to the corresponding charging coefficient regulator. The automatic intelligent power distribution unit is also connected to each of the discharging coefficient regulators to input the discharging coefficient of each lithium battery power distribution unit to the corresponding discharging coefficient regulator.

[0065] refer to Figure 1The diagram shown illustrates the calculation of power supply and distribution adjustment coefficients for the space station in the illuminated area, as provided in this embodiment. Voltage values ​​of different solar power supply units are sampled in the illuminated area. The automatic intelligent power distribution unit calculates the different power supply coefficients for each solar power supply unit, and the power supply coefficient regulator configures its power supply energy to achieve intelligent energy distribution of the solar cell array. Simultaneously, the lithium battery status is sampled, specifically the current values ​​of different lithium battery power supply units. The automatic intelligent power distribution unit calculates the different charging coefficients for each lithium battery power supply unit, and the charging coefficient regulator configures its charging energy to achieve intelligent charging control of the lithium battery array. A comprehensive judgment is made to determine that different solar cell arrays will rationally distribute power to the output load and lithium batteries, ensuring intelligent power distribution for each solar cell array in the illuminated area.

[0066] refer to Figure 2 The diagram shown is a calculation diagram of the discharge coefficient allocation for the lithium battery power supply and distribution unit in the shaded area of ​​the space station provided in this embodiment. The current values ​​of different lithium battery power supply and distribution units are sampled in the shaded area. The automatic intelligent power distribution unit calculates the different discharge coefficients for each lithium battery power supply and distribution unit, and the discharge coefficient regulator configures its discharge energy to achieve intelligent discharge control of the lithium battery array.

[0067] In summary, this embodiment calculates the optimal energy each power supply and distribution unit can provide by sampling its power value in real time. Through intelligent allocation by the autonomous intelligent distribution unit, the charging and discharging coefficients of each power supply and distribution unit are rationally set, ensuring that each unit operates at its optimal state, thus greatly improving the operational efficiency of the space station's power supply and distribution system. The rational configuration of the charging and discharging coefficients for each power supply and distribution unit in this embodiment greatly ensures the balanced lifespan of the battery array in the space station's power supply and distribution system. This will improve the reliability of the space station's power supply and distribution system, providing a reliable guarantee for the long-term on-orbit operation of the entire space station.

[0068] In this embodiment, the power supply and distribution system of the space station is provided by several solar cell arrays and several lithium battery arrays. This embodiment proposes an autonomous intelligent distribution control for the power system.

[0069] First, when the space station's power system is in a sunlit area, its main energy is provided by several solar arrays. By sampling the power output of each individual solar array, the automatic intelligent power allocation unit uses an MPPT (Maximum Power Point Tracking) adjustment algorithm to determine the power output of each solar array based on its individual output power. It then sets the output power coefficient for each solar array according to the output power, and simultaneously samples the lithium battery status. This comprehensive assessment determines how to rationally allocate power between the different solar arrays to the output load and the lithium batteries, ensuring intelligent power distribution for each solar array in the sunlit area.

[0070] At the same time, the characteristics of the lithium battery array are determined, including individual cell temperature, individual cell voltage, dynamic impedance, etc., so as to determine different charging coefficients for different lithium battery arrays and ensure balanced charging of the lithium battery array.

[0071] Secondly, when the space station's power system is in the shadow zone, the main energy of the space station's power system is provided by lithium battery arrays. By sampling the output current of each lithium battery array, different discharge coefficients are set according to the battery characteristics and load characteristics of different lithium battery arrays to ensure intelligent power distribution of each lithium battery array in the shadow zone.

[0072] By autonomously and intelligently allocating energy within the power system, the efficient utilization of the entire power generation system can be achieved, greatly improving its overall efficiency. This method sets different charge-discharge coefficients for each battery array in both illuminated and shaded areas by detecting its power output. This ensures that battery arrays with high power generation capacity output more energy, while those with low capacity output less energy. This significantly balances the lifespan of each battery array, providing a reliable guarantee for the long-term on-orbit operation of my country's space station.

[0073] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0074] It should be noted that the apparatus and methods disclosed in the embodiments herein can also be implemented in other ways. The apparatus embodiments described above are merely illustrative; for example, the flowcharts and block diagrams in the accompanying drawings show the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments herein. In this regard, each block in a flowchart or block diagram may represent a module, program, or part of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system to perform the specified function or action, or can be implemented using a combination of dedicated hardware and computer instructions.

[0075] In addition, the functional modules in the various embodiments of this article can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0076] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. An automatic intelligent power distribution system for a space station, used in the power supply and distribution system of a space station, characterized in that, include: Several solar power units; Several lithium battery power distribution units are connected to several of the aforementioned solar power supply units; An automatic intelligent power distribution unit is connected to each of the solar power supply units and each of the power distribution units. The automatic intelligent power distribution unit calculates the parameters of each solar power supply unit and each lithium battery power distribution unit to obtain the adjustment coefficients of each solar power supply unit and each lithium battery power distribution unit, so as to realize the intelligent distribution of energy of the space station power supply and distribution system. Each of the aforementioned solar power units includes: A solar cell array, which is used to generate electricity for the solar power supply unit; A power supply coefficient regulator, whose first end is connected to the first end of the solar cell array, configures the power supply energy of the solar power supply unit to realize intelligent energy distribution of the solar cell array; The shunt circuit has its first end connected to the second end of the power supply coefficient regulator and its second end connected to the second end of the solar cell array. After the second end of the shunt circuit is connected to the second end of the solar cell array, it is connected in parallel with the positive terminal of each solar power supply unit. After the parallel connection, it is connected to the common negative bus. The shunt circuit is used to share part of the current in the solar power supply unit. A first isolation diode has its first end connected in parallel with the negative terminal of each of the solar power supply units and then connected to a common positive bus. Its second end is connected to the third terminal of the shunt circuit. The first isolation diode is used to unidirectionally conduct the current transmitted through the third terminal of the shunt circuit.

2. The automatic intelligent power distribution system for space stations as described in claim 1, characterized in that, The parameters of each solar power supply unit include: the voltage of each solar power supply unit sampled separately; The parameters of each lithium battery power supply and distribution unit include: the current of each lithium battery power supply and distribution unit sampled separately and the individual cell characteristic parameters of each lithium battery power supply and distribution unit.

3. The automatic intelligent power distribution system for space stations as described in claim 2, characterized in that, The automatic intelligent power distribution unit is connected to each of the power supply coefficient regulators to input the adjustment coefficient of each of the solar power supply units to the corresponding power supply coefficient regulator.

4. The automatic intelligent power distribution system for space stations as described in claim 3, characterized in that, The specific steps for obtaining the adjustment coefficient of each solar power supply unit are as follows: Establish a neural network model; The neural network model collects the voltage of each of the solar power supply units; The voltages of several of the solar power supply units are input to the input layer of the neural network model; Based on the coupling weight coefficient matrix of the hidden layer of the neural network model, the voltage of several solar power supply units is adjusted to obtain the adjusted data of the hidden layer, and then output to the output layer of the neural network model. Based on the coupling weight coefficient of the output layer, the data after adjustment of the hidden layer is adjusted to obtain the adjustment coefficient of each solar power supply unit.

5. The automatic intelligent power distribution system for space stations as described in claim 2, characterized in that; The single-cell characteristic parameters of the lithium battery power supply and distribution unit include any one or any combination of single-cell temperature, single-cell voltage, and dynamic impedance.

6. The automatic intelligent power distribution system for space stations as described in claim 5, characterized in that, Each of the aforementioned lithium battery power supply and distribution units includes: A lithium battery array, used for power supply and distribution of the lithium battery power supply and distribution unit; A discharge coefficient regulator, which is used to dynamically adjust the discharge coefficient of the lithium battery array; A charging coefficient regulator, the first end of which is connected in parallel with the first end of the discharging coefficient regulator, and the two connected in parallel are connected to the first end of the lithium battery array, for dynamically adjusting the charging coefficient of the lithium battery array. A discharge converter, the first end of which is connected to the second end of the discharge coefficient regulator, is used to adjust the discharge voltage of the corresponding lithium battery array; A charging converter, the first end of which is connected to the second end of the charging coefficient regulator, is used to adjust the charging voltage of the corresponding lithium battery array; The second isolation diode has its first end connected to the second end of the discharge converter, and its second end is connected in parallel with the positive terminal of each lithium battery power supply unit and then connected to the common positive bus. The third isolation diode has its first terminal connected to the second terminal of the charging converter, and its second terminal connected in parallel with the positive terminal of each lithium battery power distribution unit and then connected to a common positive bus. Both the second and third isolation diodes are used to ensure unidirectional current conduction in the circuit of the lithium battery power distribution unit. The second end of the lithium battery array is connected in parallel with the negative terminal of each lithium battery power supply and distribution unit and then connected to a common negative bus.

7. The automatic intelligent power distribution system for space stations as described in claim 6, characterized in that, The adjustment coefficient of each lithium battery power supply and distribution unit includes a charging coefficient and a discharging coefficient.

8. The automatic intelligent power distribution system for space stations as described in claim 7, characterized in that, The specific steps for obtaining the charging coefficient of each lithium battery power distribution unit are as follows: The automatic intelligent power distribution unit collects the voltage of each solar power supply unit and the current of each lithium battery power distribution unit. The charging coefficient of each lithium battery power supply unit is obtained based on the coupling weight coefficient matrix of the solar power supply unit, the single cell characteristic parameters of the lithium battery power supply and distribution unit, and the coupling weight coefficient matrix of the lithium battery power supply and distribution unit.

9. The automatic intelligent power distribution system for space stations as described in claim 8, characterized in that, The specific steps for obtaining the discharge coefficient of each lithium battery power supply unit are as follows: The automatic intelligent power distribution unit collects the current of each of the lithium battery power distribution units; The current from several of the lithium battery power distribution units is input to the input layer of the automatic intelligent power distribution unit; Based on the coupling weight coefficient matrix of the hidden layer of the automatic intelligent power allocation unit, the data input to the input layer is adjusted to obtain the adjusted data of the hidden layer, and then output to the output layer of the automatic intelligent power allocation unit. Based on the coupling weight coefficient of the output layer, the data of the hidden layer is adjusted to obtain the discharge coefficient of each lithium battery power supply and distribution unit.

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