Multi-source parallel mobile power supply system with adaptive power distribution

Abstract

The invention relates to the technical field of hybrid energy, and particularly provides a self-adaptive power distribution multi-source parallel mobile power supply system which comprises a multi-source input interface, a multi-channel input adjusting module, an energy storage module, an energy storage bidirectional adjusting module, a self-adaptive power distribution module and a power output interface. The method is characterized in that an MPPT algorithm is independently executed for each heterogeneous power supply through a multi-channel input adjusting module, and energy extraction is maximized; based on load detection and a multi-stage feedback mechanism, dynamic self-adaptive power distribution is realized; a multi-channel input end is adjusted into a unified standard bus voltage, and an output end dynamically adjusts the voltage according to a load, so that the energy conversion efficiency is improved while the use convenience is ensured; and the standard lithium battery units spliced without tools and the modular circuit design are adopted, so that the flexible combination and disassembly of the system are realized. According to the invention, the complexity of the hybrid energy system is greatly reduced, the system stability is improved, and efficient and lightweight hybrid energy mobile power supply is realized.

Description

Technical Field

[0001] This invention relates to the field of hybrid energy technology, and in particular to a mobile power supply system with adaptive power distribution and multi-source heterogeneous parallel connection functions. Background Technology

[0002] The demand for mobile power supply is upgrading. With the rapid development of electrification and intelligent technologies and products in outdoor activities, emergency rescue, and military deployments, the complex operating scenarios of mobile devices place higher demands on power supply systems: they must simultaneously meet the requirements of long battery life, high reliability, environmental adaptability, and rapid response. Single energy sources (such as lithium batteries) are limited by energy density, charge / discharge rates, and environmental temperature sensitivity, making it difficult to support the load demands in complex environments. Therefore, multi-energy hybrid power supply has become a key research direction. While current multi-source parallel systems (such as lithium batteries + supercapacitors + fuel cells / solar energy) can integrate the characteristics of different energy sources, they still face the following key problems:

[0003] Low energy efficiency: The multi-source input power lacks coordinated optimization, making it difficult to dynamically adjust according to changes in external load demand. It does not execute independent maximum power point tracking (MPPT) algorithms for different energy characteristics (such as fuel cells and photovoltaics), resulting in ineffective energy consumption or the risk of over-discharge of energy storage units.

[0004] Adaptive control failure risk: Traditional control relies on preset rules and cannot adapt to transient changes in load and changes in multiple source states, resulting in output power oscillation or protective shutdown; dynamic allocation algorithms and multi-objective optimization parameters are complexly coupled, have high hardware resource requirements and poor stability.

[0005] Large system size and weight: Mainstream systems are mainly designed for scenarios such as local power grids. The systems are complex, and the equipment is large in size and weight, which cannot meet the needs of mobile power use. In addition, the modularity of related products is not high enough, and they cannot be flexibly combined and adjusted for different scenarios, thus limiting the application scenarios and scope.

[0006] On the one hand, mobile power supply application scenarios are becoming increasingly complex, and market demand continues to expand; on the other hand, affected by the low-temperature defects, explosion risks and energy density bottlenecks of lithium battery power supplies, the industry has been seeking better hybrid energy system solutions, and urgently needs a core technology and product that can sense energy status, load characteristics and external environment in real time, and achieve optimal power allocation through multi-level coordinated control. Summary of the Invention

[0007] To resolve the aforementioned technical contradictions, this invention proposes a "multi-source parallel mobile power supply system with adaptive power allocation." By constructing a system architecture that integrates multi-source state perception, maximum power point tracking, load demand monitoring, and dynamic power matching, it achieves dynamic adaptive power allocation and multi-objective collaborative optimization, providing a systematic solution for highly reliable mobile power supply.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a multi-source parallel mobile power supply system with adaptive power distribution, characterized in that it comprises: a multi-source input interface with multiple input terminals for establishing electrical connections with various heterogeneous external power sources; a multi-channel input regulation module with multiple independent input regulation units, each input regulation unit being electrically connected to one input terminal of the multi-source input interface and adjusting the output power of the connected external power source in real time; an energy storage module including at least one rechargeable lithium battery unit for storing energy and regulating output power; a bidirectional energy storage regulation module electrically connected to the energy storage module for bidirectional regulation of the charging and discharging process of the energy storage module; an adaptive power distribution module electrically connected to the multi-channel input regulation module and the bidirectional energy storage regulation module for selectively controlling and dynamically distributing power to various heterogeneous external power sources and the output power of the energy storage module; and a power output interface with at least one output terminal for electrically connecting the adaptive power distribution module and an external load.

[0009] Preferably, the multi-source input interface includes at least: a first input terminal for connecting to the fuel cell, a second input terminal for connecting to the photovoltaic power generation device, and a third input terminal for connecting to other DC power sources.

[0010] Preferably, each input adjustment unit of the multi-channel input adjustment module includes: a sampling circuit for real-time acquisition of external power supply voltage and current signals received at the corresponding input terminal; a PWM signal controller electrically connected to the sampling circuit, which executes a maximum power point tracking (MPPT) algorithm based on the acquired signal and generates corresponding PWM control commands; and a dynamically adjustable DC-DC converter whose input terminal is connected to the input terminal, whose control terminal receives the PWM control commands, and dynamically adjusts its operating point in response to the PWM control commands to achieve maximum power point tracking (MPPT) of the input power supply, and outputs the adjusted DC power to the adaptive power distribution module.

[0011] Preferably, the original voltage range of the heterogeneous external power supply connected to each input adjustment unit in the multi-channel input adjustment module is between 3V and 30V. After each input adjustment unit performs an independent (MPPT) algorithm to optimize energy extraction, it uniformly adjusts the output DC power to a preset, identical standard bus voltage value, and finally merges it into the adaptive power distribution module.

[0012] Preferably, the energy storage module is composed of multiple standardized lithium battery cells that can be quickly assembled, with the nominal capacity of a single lithium battery cell being ≤100Wh; each lithium battery cell has a matching electromechanical coupling mechanism on its opposite surface.

[0013] Preferably, the electromechanical coupling mechanism of the energy storage module lithium battery unit includes: T-shaped guide rail grooves symmetrically distributed on the top and bottom surfaces of the lithium battery unit; spring-type electrical connector assemblies provided on the top and bottom surfaces of the lithium battery unit, wherein the positive and negative contacts of the spring-type electrical connector assemblies are arranged in a checkerboard pattern; a mechanical locking assembly is provided on the side wall of the T-shaped guide rail groove, wherein the mechanical locking assembly adopts a concave-convex interlocking design; when two lithium battery units slide relative to each other along the guide rail direction to a preset position, the protrusions and grooves of the mechanical locking assembly achieve interlocking through plastic deformation, forming a mechanical self-locking structure, and at the same time, the spring-type electrical connector assemblies fit together to complete the parallel connection of the two lithium battery units.

[0014] Preferably, the bidirectional energy storage regulation module includes: a charging branch regulation unit, whose input terminal receives electrical energy from an external power source through the adaptive power distribution module, and whose output terminal is connected to the energy storage module, and regulates the charging voltage based on the nominal voltage of the lithium battery unit of the energy storage module, wherein the charging voltage regulation range is 3V to 30V; and a discharging branch regulation unit, whose input terminal is connected to the energy storage module, and whose output terminal and control terminal are connected to the adaptive power distribution module, and dynamically adjusts its output power according to the control signal sent by the adaptive power distribution module, and adjusts the output voltage to the same standard bus voltage value as each input regulation unit of the multi-channel input regulation module.

[0015] Preferably, the adaptive power distribution module includes: a load demand detection unit, which detects in real time the voltage and current information required by the external load connected to the power output interface; a power distribution control unit, which dynamically adjusts the discharge power distribution ratio of the external power supply and the energy storage module according to a preset control strategy and information such as load demand and power status; a multi-channel power monitoring and power switching unit, which is equipped with a multi-channel power status monitoring circuit and a multi-channel power switching switch, specifically executing the selection of the various heterogeneous external power input paths, the switching of the charging and discharging paths of the energy storage module, and the parallel combination connection of the external power input and the output power of the energy storage module; and an output adjustment unit, which dynamically adjusts the output voltage and current according to the external load demand.

[0016] Preferably, the power distribution control unit is configured to perform the following operations:

[0017] Based on the real-time collected load parameters and the power status data of the external power supply and energy storage module, as well as the control algorithm, a coordinated control instruction set is generated.

[0018] Send instructions to the energy storage bidirectional regulation module to set the charging and discharging mode, target output voltage, and current value of the energy storage module;

[0019] The multi-channel power switching switch is driven to form a parallel power supply path, so that the selected external power supply and the energy storage module in the discharge state can supply power to the output regulation unit.

[0020] The coordinated control instruction set is dynamically adjusted based on the actual output status information fed back by the output adjustment unit.

[0021] The coordinated control instruction set is reconstructed and the power supply unit combination is switched when any of the following conditions are met: the change in load power demand exceeds a first preset threshold; or the fluctuation in external power supply output power exceeds a second preset threshold.

[0022] The beneficial effects of this invention are:

[0023] 1. Significantly Improved Energy Utilization and System Reliability: This invention utilizes a multi-channel input regulation module to independently execute the Maximum Power Point Tracking (MPPT) algorithm for each heterogeneous power source (such as fuel cells and photovoltaic devices), optimizing input power extraction in real time. Simultaneously, an adaptive power allocation module dynamically coordinates the output of multiple sources with the charging and discharging of the energy storage module, preventing over-discharge of energy storage units or ineffective power consumption. This significantly improves overall energy conversion efficiency (reducing energy waste by more than 20%) and maintains highly reliable power supply during sudden load changes or environmental shifts.

[0024] 2. Achieving rapid adaptive dynamic power control: Based on a load demand detection unit and a multi-level feedback mechanism, the system senses load changes (such as a power demand mutation threshold ≥10%) and power status in real time. Through dynamic reconstruction of the coordination instruction set by the power distribution control unit, it responds to instantaneous load fluctuations in milliseconds (response time <10ms). At the same time, it uniformly adjusts the output voltage of various heterogeneous external power supplies and energy storage module lithium battery units to a preset fixed value before outputting it to the adaptive power distribution module, reducing system complexity, effectively suppressing output power oscillations and shutdown risks, and improving system stability.

[0025] 3. Optimize system size, weight, and scenario flexibility: The energy storage module adopts standardized lithium battery cells (≤100Wh) and modular electromechanical coupling mechanisms (such as T-shaped guide rails and spring-loaded electrical connectors), supporting rapid assembly and tool-free combination. In actual product development and application, the modular multi-channel input regulation module, adaptive power distribution module, and energy storage module can be integrated or decoupled according to requirements to achieve flexible combination and splitting of the entire system, making it more suitable for rapid deployment and on-demand expansion in outdoor, emergency, and other mobile scenarios. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the multi-source parallel mobile power supply system with adaptive power distribution according to the present invention;

[0027] Figure 2This is a schematic diagram of the input adjustment unit of the multi-channel input adjustment module of the present invention;

[0028] Figure 3 This is a schematic diagram of the splicing and assembly of lithium battery units in the energy storage module of the present invention;

[0029] Figure 4 This is a schematic diagram of the electromechanical coupling mechanism of the lithium battery unit in the energy storage module of the present invention.

[0030] In the diagram: 1. Multi-source input interface, 11. First input terminal, 12. Second input terminal, 13. Third input terminal; 2. Multi-channel input adjustment module, 21. First input adjustment unit, 211. Sampling circuit, 212. PWM signal controller, 213. Dynamically adjustable DC-DC converter, 22. Second input adjustment unit, 23. Third input adjustment unit; 3. Energy storage module, 31. First lithium battery unit, 311. First T-shaped guide rail groove, 312. First spring-type electrical connection 313. Protrusion locking assembly; 32. Second lithium battery unit; 321. Second T-shaped guide rail groove; 322. Second spring-type electrical connector assembly; 323. Groove locking assembly; 4. Energy storage bidirectional adjustment module; 41. Charging branch adjustment unit; 42. Discharge branch adjustment unit; 5. Adaptive power distribution module; 51. Load demand detection unit; 52. Power distribution control unit; 53. Multi-channel power monitoring and power switching switch unit; 54. Output adjustment unit; 6. Power output interface. Detailed Implementation

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following description is provided in conjunction with the accompanying drawings. It should be noted that the presented drawings are merely examples of some embodiments of the present invention. Those skilled in the art, based on the teachings of the present invention, can understand and implement other feasible technical solutions without creative effort, in conjunction with the accompanying drawings and the description; all such solutions should fall within the scope of protection of the claims.

[0032] like Figure 1As shown, the adaptive power distribution multi-source parallel mobile power supply system is characterized by comprising: a multi-source input interface 1, having a first input terminal 11, a second input terminal 12, and a third input terminal 13, which are respectively electrically connected to a fuel cell, a photovoltaic power generation device, and other DC power sources; a multi-channel input regulation module 2, having a first input regulation unit 21, a second input regulation unit 22, and a third input regulation unit 23, which are respectively electrically connected to the first to third input terminals and adjust the output power of the connected external power sources in real time; an energy storage module 3, including at least one rechargeable lithium battery unit, used for storing electricity and regulating output power; an energy storage bidirectional regulation module 4, electrically connected to the energy storage module 3, which bidirectionally regulates the charging and discharging process of the energy storage module 3; an adaptive power distribution module 5, which is electrically connected to the multi-channel input regulation module 2 and the energy storage bidirectional regulation module 4, which selectively controls and dynamically distributes power to various heterogeneous external power sources and the output power of the energy storage module 3; and a power output interface 6, having at least one output terminal, which is respectively electrically connected to the adaptive power distribution module 5 and an external load.

[0033] like Figure 2 As shown, taking the first input adjustment unit 21 of the multi-channel input adjustment module 2 as an example, it includes: a sampling circuit 211, used to collect the fuel cell voltage and current signals received by the first input terminal 11 in real time; a PWM signal controller 212, electrically connected to the sampling circuit 211, which executes the maximum power point tracking (MPPT) algorithm that conforms to the characteristics of the fuel cell according to the collected signal and generates corresponding PWM control commands; and a dynamically adjustable DC-DC converter 213, whose input terminal is connected to the first input terminal 11, whose control terminal receives the PWM control commands, and dynamically adjusts its operating point in response to the PWM control commands to achieve maximum power point tracking (MPPT) of the input power, and outputs the adjusted DC power to the multi-channel power monitoring and power switching unit 53 of the adaptive power distribution module 5.

[0034] like Figure 1 and Figure 2 As shown, the first to third input regulation units in the multi-channel input regulation module 2 are connected to fuel cells, photovoltaic power generation devices and other DC power supplies with original voltage ranges between 3V and 30V. After each of the first to third input regulation units performs an independent (MPPT) algorithm to optimize energy extraction, they uniformly adjust the output DC power to a preset, identical standard bus voltage value (such as 5V or 12V), and finally feed it into the multi-channel power monitoring and power switching unit 53 of the adaptive power distribution module 5.

[0035] like Figure 3As shown, the energy storage module 3 consists of two standardized lithium battery units 31 and 32 that can be quickly spliced ​​together. The nominal capacity of a single lithium battery unit is ≤100Wh. Each lithium battery unit has a matching electromechanical coupling mechanism on its opposite surface.

[0036] like Figure 3 and Figure 4 As shown, the electromechanical coupling mechanism of the first lithium battery unit 31 and the second lithium battery unit 32 includes: T-shaped guide rail grooves 311 / 321 and spring-type electrical connector groups 312 / 322 symmetrically distributed on the top surface of the first lithium battery unit 31 and the bottom surface of the second lithium battery unit 32; a protruding locking component 313 is provided on the side wall of the first T-shaped guide rail groove 311; and a groove locking component 323 is provided on the side wall of the second T-shaped guide rail groove 321. When the two lithium battery units slide relative to each other along the guide rail direction to a preset position, the protrusion 313 and the groove 323 of the locking component are fitted together through plastic deformation to form a mechanical self-locking structure. At the same time, the first and second spring-type electrical connector groups 312 / 322 are fitted together to complete the parallel connection of the two lithium battery units. It should be noted that the top surface of any lithium battery cell and the bottom surface of another lithium battery cell are designed with matching electromechanical coupling mechanisms, so that the number of lithium battery cells spliced ​​is in principle unlimited; however, the upper limit of the total power output in parallel is limited by the maximum power density that the spring-type electrical connector group 312 / 322 can carry. In actual operation, the power requirements can be matched by adjusting the number of connectors or optimizing the contact area of ​​a single connector.

[0037] like Figure 1 As shown, the bidirectional energy storage regulation module 4 includes: a charging branch regulation unit 41, whose input terminal is connected to the multi-channel power monitoring and power switching unit 53, receiving electrical energy from an external power source, and whose output terminal is connected to the energy storage module 3 for charging, adjusting the charging voltage based on the nominal voltage of the lithium battery unit of the energy storage module, wherein the charging voltage adjustment range is 3V to 30V; and a discharging branch regulation unit 42, whose input terminal is connected to the energy storage module 3, whose output terminal is connected to the multi-channel power monitoring and power switching unit 53, and whose control terminal is connected to the power distribution control unit 52, dynamically adjusting its output power according to the control signal sent by 52, and adjusting the output voltage to the same standard bus voltage value as each input regulation unit of the multi-channel input regulation module 2.

[0038] like Figure 1As shown, the adaptive power distribution module 5 includes: a load demand detection unit 51, which detects in real time the voltage and current information required by the external load connected to the power output interface 6; a power distribution control unit 52, which dynamically adjusts the discharge power distribution ratio of the external power supply and the energy storage module 3 according to the preset control strategy and information such as load demand and power status; a multi-channel power monitoring and power switching unit 53, which is equipped with a multi-channel power status monitoring circuit and a multi-channel power switching switch, specifically performing the selection of the various heterogeneous external power input paths and the switching of the charging and discharging paths of the energy storage module 3, as well as the parallel combination connection of the external power input and the output power of the energy storage module 3; and an output adjustment unit 4, which dynamically adjusts the output voltage and current according to the external load demand.

[0039] like Figure 1 As shown, the power distribution control unit 52 is configured to perform the following operations:

[0040] Load parameters are collected by the load demand detection unit 51, and power status data of external power supply and energy storage module 3 are collected by the multi-power supply monitoring and power switching unit 53. The control algorithm is run to generate a coordinated control instruction set.

[0041] Send instructions to the bidirectional energy storage regulation module 4 to set the charging and discharging mode, target output voltage and current value of the energy storage module 3;

[0042] The power switching of the multi-power monitoring and power switching unit 53 is driven to form a parallel power supply path, so that the selected external power supply and the energy storage module 3 in the discharge state can supply power to the output regulation unit 54.

[0043] The coordinated control instruction set is dynamically adjusted based on the actual output status information fed back by the output adjustment unit 54.

[0044] The coordinated control instruction set is reconstructed and the power supply unit combination is switched when any of the following conditions are met: the change in load power demand exceeds a first preset threshold (e.g., ≥10%); or the fluctuation in external power supply output power exceeds a second preset threshold (e.g., ≥20%).

[0045] It should be noted that the above embodiments are merely illustrative of feasible implementations of the technical solution of the present invention, intended to facilitate understanding, and do not constitute a limitation on the scope of protection of the claims. Any modifications, equivalent substitutions, or improvements made based on the essential spirit and core principles of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A multi-source parallel mobile power supply system with adaptive power distribution, characterized in that, include: It features a multi-source input interface with multiple input terminals, allowing for electrical connections to various heterogeneous external power sources. The multi-channel input regulation module has multiple independent input regulation units, each of which is electrically connected to one input terminal of the multi-source input interface and adjusts the output power of the connected external power supply in real time; the energy storage module includes at least one rechargeable lithium battery unit for storing electricity and regulating output power; the bidirectional energy storage regulation module is electrically connected to the energy storage module and performs bidirectional regulation of the charging and discharging process of the energy storage module. An adaptive power distribution module is electrically connected to the multi-channel input regulation module and the energy storage bidirectional regulation module, respectively, and selectively controls and dynamically distributes power to various heterogeneous external power sources and the output power of the energy storage module; a power output interface is provided with at least one output terminal, which is electrically connected to the adaptive power distribution module and the external load, respectively.

2. The multi-source parallel mobile power supply system with adaptive power distribution according to claim 1, characterized in that, The multi-source input interface includes at least: a first input terminal for connecting to a fuel cell, a second input terminal for connecting to a photovoltaic power generation device, and a third input terminal for connecting to other DC power sources.

3. The multi-source parallel mobile power supply system with adaptive power distribution according to claim 1, characterized in that, Each input adjustment unit of the multi-channel input adjustment module includes: a sampling circuit for real-time acquisition of external power supply voltage and current signals received at the corresponding input terminal; a PWM signal controller electrically connected to the sampling circuit, which executes the maximum power point tracking (MPPT) algorithm according to the acquired signal and generates corresponding PWM control commands; and a dynamically adjustable DC-DC converter whose input terminal is connected to the input terminal, whose control terminal receives the PWM control commands, and dynamically adjusts its operating point in response to the PWM control commands to achieve maximum power point tracking (MPPT) of the input power supply, and outputs the adjusted DC power to the adaptive power distribution module.

4. The multi-source parallel mobile power supply system with adaptive power distribution according to claim 3, characterized in that, Each input adjustment unit in the multi-channel input adjustment module is connected to a heterogeneous external power supply with an original voltage range between 3V and 30V. After each input adjustment unit performs an independent (MPPT) algorithm to optimize energy extraction, it adjusts the output DC power to a preset, identical standard bus voltage value, and finally feeds it into the adaptive power distribution module.

5. The multi-source parallel mobile power supply system with adaptive power distribution according to claim 1, characterized in that, The energy storage module consists of multiple standardized lithium battery cells that can be quickly assembled, with each lithium battery cell having a nominal capacity of ≤100Wh; each lithium battery cell has a matching electromechanical coupling mechanism on its opposite surface.

6. The multi-source parallel mobile power supply system with adaptive power distribution according to claim 5, characterized in that, The electromechanical coupling mechanism of the lithium battery unit of the energy storage module includes: T-shaped guide rail grooves symmetrically distributed on the top and bottom surfaces of the lithium battery unit; spring-type electrical connector assemblies provided on the top and bottom surfaces of the lithium battery unit, wherein the positive and negative contacts of the spring-type electrical connector assemblies are arranged in a checkerboard pattern; a mechanical locking assembly is provided on the side wall of the T-shaped guide rail groove, wherein the mechanical locking assembly adopts a concave-convex interlocking design; when two lithium battery units slide relative to each other along the guide rail direction to a preset position, the protrusions and grooves of the mechanical locking assembly achieve interlocking through plastic deformation, forming a mechanical self-locking structure, and at the same time, the spring-type electrical connector assemblies fit together to complete the parallel connection of the two lithium battery units.

7. The multi-source parallel mobile power supply system with adaptive power distribution according to claim 1, characterized in that, The bidirectional energy storage regulation module includes: a charging branch regulation unit, whose input terminal receives electrical energy from an external power source through the adaptive power distribution module, and whose output terminal is connected to the energy storage module, and regulates the charging voltage based on the nominal voltage of the lithium battery cell of the energy storage module, wherein the charging voltage regulation range is 3V to 30V; and a discharging branch regulation unit, whose input terminal is connected to the energy storage module, and whose output terminal and control terminal are connected to the adaptive power distribution module, and dynamically adjusts its output power according to the control signal sent by the adaptive power distribution module, and adjusts the output voltage to the same standard bus voltage value as each input regulation unit of the multi-channel input regulation module.

8. The multi-source parallel mobile power supply system with adaptive power distribution according to claim 1, characterized in that, The adaptive power distribution module includes: a load demand detection unit, which detects in real time the voltage and current information required by the external load connected to the power output interface; a power distribution control unit, which dynamically adjusts the discharge power distribution ratio of the external power supply and the energy storage module according to a preset control strategy, load demand, and power status information; a multi-channel power monitoring and power switching unit, which is equipped with a multi-channel power status monitoring circuit and a multi-channel power switching switch, specifically executing the selection of the various heterogeneous external power input paths, the switching of the charging and discharging paths of the energy storage module, and the parallel combination connection of the external power input and the output power of the energy storage module; and an output adjustment unit, which dynamically adjusts the output voltage and current according to the external load demand.

9. The multi-source parallel mobile power supply system with adaptive power distribution according to claim 8, characterized in that, The power distribution control unit is configured to perform the following operations: Based on the real-time collected load parameters and the power status data of the external power supply and energy storage module, as well as the control algorithm, a coordinated control instruction set is generated. Send instructions to the energy storage bidirectional regulation module to set the charging and discharging mode, target output voltage, and current value of the energy storage module; The multi-channel power switching switch is driven to form a parallel power supply path, so that the selected external power supply and the energy storage module in the discharge state can supply power to the output regulation unit. Based on the actual output status information fed back by the output adjustment unit, the coordinated control instruction set is dynamically adjusted. When any of the following conditions are met, the coordinated control instruction set is reconstructed and the power supply unit combination is switched: the change in load power demand exceeds a first preset threshold; the fluctuation of external power supply output power exceeds a second preset threshold.

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