A mobile scene vibration adaptive modular emergency power supply system and method

Abstract

The application discloses a mobile scene vibration adaptive modular emergency power supply system and method, and belongs to the technical field of emergency power supply. The system comprises a plurality of modular energy storage power supply units, an electro-hydraulic integrated blind plug quick ad hoc network interface, a vibration adaptive compensation device and a distributed adaptive energy management system. A three-stage vibration control logic is designed based on threshold rules discovered through vibration tests. The electromagnetic locking force, the magneto-rheological damping and the transmission power are dynamically adjusted according to the real-time vibration size, and the contact resistance closed loop and feedforward control are used to solve the connection failure problem under mobile vibration. The 45° cone angle forced centering is matched with a spring floating to realize the ±5mm tolerance blind plug, and the butt joint time of a single module is not more than 10 seconds. The double safety electromagnetic locking is used to realize the intrinsic safety after power failure. The Raft algorithm is used to dynamically elect a master node, and the fault switching is completed within 1 second. The new unit is plug and play, and the multi-vendor device interoperability is supported.

Description

Technical Field

[0001] This invention relates to the field of emergency power supply technology, specifically to a mobile scene vibration adaptive modular emergency power supply system and method. Background Technology

[0002] In recent years, with the increasing frequency of extreme weather and geological disasters, emergency power supply has become an increasingly important core guarantee for disaster relief and rescue. Traditional emergency power supply mainly uses a single large-capacity diesel generator or a stationary energy storage vehicle, which has problems such as fixed capacity that cannot be expanded as needed, system-wide power outage due to single-node failure, and inconvenient transportation and deployment. Modular emergency power supply, because it can flexibly expand capacity in parallel according to load demand and has high redundancy, is gradually becoming the mainstream technology for emergency power supply.

[0003] However, almost all existing modular emergency power supply systems are designed for fixed sites and static use scenarios. When directly applied to mobile scenarios such as vehicles and ships, they face serious technical bottlenecks and cannot meet the actual needs of mobile emergency response. They suffer from poor connection reliability under vibration, slow docking and networking speed, poor reliability of centralized management, lack of vibration adaptive protection mechanisms, and incompatibility between equipment from different manufacturers.

[0004] Based on this, the present invention provides a mobile scene vibration adaptive modular emergency power supply system and method. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a mobile scene vibration adaptive modular emergency power supply system and method, which solves the technical problems of unreliable connection, slow networking speed, single point of failure in centralized architecture, lack of vibration safety protection, and incompatibility between multiple vendors in existing modular emergency power supply systems under mobile vibration scenarios.

[0006] The technical solution adopted by this invention to solve its technical problem is: a mobile scene vibration adaptive modular emergency power supply system, comprising: Several modular energy storage power supply units, wherein each modular energy storage power supply unit includes at least one mobile energy storage vehicle, several mobile electric vehicles or pluggable battery swapping energy storage modules, and each unit is independently packaged and has an independent PCS power conversion unit. The fast self-organizing network interface device is integrated into the connection end of each modular energy storage power supply unit. It is used to realize the integrated blind mating of mechanical connection, power transmission and communication connection between different units. It includes a forced alignment mechanism, a floating multi-core connector, an electromagnetic locking component and a locking position sensor. The vibration adaptive compensation device includes a triaxial accelerometer, a bandpass filter circuit, a magnetorheological damping vibration isolation mechanism, and a contact resistance monitoring unit. Its output is connected to the drive circuit of the electromagnetic locking component, the control terminal of the magnetorheological damper, and the power limiting interface of the PCS. It is used to dynamically adjust the electromagnetic locking force, vibration isolation damping, and interface transmission power according to the real-time vibration state in the mobile scenario. The Distributed Adaptive Energy Management System (DA-EMS) consists of local controllers distributed in each modular energy storage power supply unit via a wireless self-organizing network. It has no fixed master controller and is used to automatically elect a master node, dynamically identify the capacity of newly connected units, and allocate the output power of each unit in real time, so as to realize stable power supply of multiple units in parallel in mobile scenarios.

[0007] Preferably, the fast self-organizing network interface device is an integrated blind-mating interface that integrates power, communication, and liquid cooling. The forced alignment mechanism consists of a tapered guide sleeve and a tapered guide post with a tapered angle of 30° to 60°, allowing a radial position deviation of ±5mm during docking. The floating multi-core connector includes a power pin, a communication pin, and a liquid-cooled quick connector. The connector is mounted on a circumferentially arranged helical spring or leaf spring, which can achieve radial floating compensation of ±1.5mm. After docking, it is automatically locked by an electromagnetic locking component.

[0008] Preferably, the triaxial accelerometer in the vibration adaptive compensation device has a sampling frequency of not less than 100Hz, and the bandpass filter circuit is a 0.5-10Hz bandpass filter used to filter out low-frequency components and high-frequency electrical noise caused by vehicle acceleration, deceleration, and attitude changes, retaining only the effective vibration components caused by road bumps and engine vibration; the magnetorheological damping vibration isolation mechanism is arranged between the floating connector and the mounting base, and can adjust the damping coefficient in real time according to the vibration magnitude to achieve active vibration isolation; the contact resistance monitoring unit uses a four-wire Kelvin measurement method to monitor the contact voltage drop of the power pin in real time, calculate the contact resistance value, and automatically adjust the electromagnetic locking force to increase the contact pressure when the contact resistance exceeds the threshold.

[0009] Preferably, the vibration adaptive compensation device is configured to execute three-level vibration adaptive control logic with a hysteresis interval: The effective value of vibration acceleration 'a' is obtained by real-time acquisition and filtering; The action threshold is set to 0.3g, and the recovery threshold is set to 0.25g. When a exceeds 0.3g and the duration is ≥200ms, increase the electromagnetic locking current and simultaneously increase the damping coefficient of the magnetorheological damper to improve the connection stiffness. When a exceeds 0.8g and the duration is ≥200ms, the maximum allowable transmission power of the PCS interface is reduced proportionally, down to a minimum of 30% of the rated power; When a falls below 0.25g and lasts for more than 5 seconds, the lockout current, damping coefficient, and transmission power are gradually restored to their rated values; the difference between the action threshold of 0.3g and the recovery threshold of 0.25g constitutes a hysteresis dead zone to prevent control oscillation.

[0010] Preferably, when the vibration exceeds the second threshold, the derating formula for the interface transmission power is: P_limit=P_rated×max(0.3,1-k·(a-0.8)), where k is a derating coefficient of 0.5 to 1.0, which is dynamically adjusted according to the real-time value of the contact resistance: the larger the contact resistance, the larger the value of k; the vibration adaptive compensation device also has a vibration feedforward control function, which obtains information on road bumps ahead or vehicle suspension vibration signals by connecting to the vehicle CAN bus, and adjusts the locking force and damping coefficient 100 to 500 ms in advance to achieve composite control of feedforward + feedback.

[0011] Preferably, the electromagnetic locking assembly is a double-safety structure that maintains its position even when power is off: when energized, the electromagnetic force attracts the armature, causing the locking pin to insert into the locking hole, thus achieving automatic locking; when power is off, the built-in mechanical spring maintains the insertion position of the locking pin, preventing the connection from being broken due to power failure; the locking position sensor detects the position of the locking pin in real time, and power transmission is only allowed when the locking pin is fully in place. Power output is prohibited when the pin is not locked or is not locked properly, thus avoiding arcing during insertion and removal under load.

[0012] Preferably, in the Distributed Adaptive Energy Management System (DA-EMS), the main controller is dynamically generated by each local controller through the Raft election algorithm. The election criteria include a weighted score of each unit's remaining power SOC, communication signal strength, and controller computing power. The unit with the highest score becomes the main controller. When the main controller goes offline, communication is interrupted, or a fault occurs, the system automatically completes a re-election within 1 second without interrupting power supply. After a newly connected modular unit is connected, it automatically broadcasts its type, rated capacity, and current SOC to the entire network. The main controller automatically includes it in power allocation, achieving plug-and-play functionality without manual configuration.

[0013] Preferably, the fast self-organizing network interface device adopts a unified application layer communication protocol. The frame format includes a device type code, a capacity declaration field, a status word field, a power command field, and a check field, supporting interoperability and parallel connection of energy storage units, electric vehicles, and battery swapping modules from different manufacturers and with different capacities. The DA-EMS also has a dynamic circulating current suppression function, which detects the output current difference of each parallel unit in real time and achieves circulating current suppression by fine-tuning the output voltage of each unit, avoiding parallel circulating current caused by changes in contact resistance due to vibration. The device type code is defined as follows: 0x01-Mobile energy storage discharge vehicle, 0x02-Battery swapping energy storage module, 0x03-Electric vehicle, 0x04-Third-party energy storage device, 0x05-Photovoltaic input unit, 0x06-Load unit.

[0014] Preferably, a method for adaptive emergency power supply for mobile scenarios based on vibration includes the following steps: S1 Modular Unit Quick Connection: Move each modular energy storage power supply unit to the designated position, and achieve blind insertion and connection through the forced alignment mechanism of the quick self-organizing network interface. The electromagnetic locking component automatically detects the position and locks it. After the position sensor confirms that the locking is reliable, the mechanical connection is completed. S2 self-organizing network and master node election: After the local controller of each unit is powered on, it automatically forms a wireless network and elects a master controller within 2 seconds based on a weighted score of SOC, communication quality and computing power. S3 Automatic Capacity Identification and Black Start: The main controller automatically identifies the type, capacity and SOC of all connected units, and automatically coordinates each unit to achieve black start in the absence of an external power grid, establishing a stable AC or DC bus voltage. S4 Vibration Adaptive Closed-Loop Control: The vibration adaptive compensation device of each unit collects the vibration acceleration in real time. After being filtered by a 0.5-10Hz bandpass filter, the electromagnetic locking force, magnetorheological damping and transmission power are dynamically adjusted according to the vibration magnitude. At the same time, the contact resistance is monitored in real time and the contact pressure is adjusted to achieve reliable power supply in moving vibration scenarios. S5 Dynamic Power Allocation: The main controller dynamically allocates the output power of each unit in real time according to the load size and the SOC of each unit. Units with high SOC output more power and units with low SOC output less power, while suppressing parallel circulating current. S6 Dynamic Topology Healing: When a unit fails, disconnects, or a new unit is connected, the system automatically re-elects a master node and redistributes power, completing the topology update within 1 second without interrupting the power supply to the load.

[0015] Preferably, the recovery delay time of vibration control in step S4 is 3 to 10 seconds to avoid frequent parameter switching caused by the instantaneous drop in vibration. When the effective value of vibration acceleration continuously exceeds the extreme shutdown threshold of 2.0g and the duration is ≥2 seconds, the system determines it to be an extreme vibration condition, controls the PCS to softly reduce the power to 0 and issues an audible and visual alarm. After the vibration acceleration drops below 0.3g and remains stable for 3 seconds, it automatically performs a soft start to reconnect to the grid and supply power. The entire networking process does not require manual wiring and configuration. The connection time of a single module does not exceed 10 seconds, and the time from the completion of the connection of the first module to the system being powered by the load does not exceed 30 seconds, which can realize rapid emergency power supply in mobile scenarios.

[0016] The advantages of this invention are: 1. This invention has extremely strong vibration adaptability: it can work continuously for 8 hours in a random vibration environment with a vibration spectrum of 0.5-10Hz and a total acceleration root mean square of 1.2g, with a contact resistance change of less than 0.1mΩ, no loosening, no overheating, and no arcing. The connector life is more than 3 times longer than traditional connectors, the single module docking time is less than 10 seconds, and the time from the completion of the first module docking to black start load power supply is less than 30 seconds, which is more than 20 times faster than traditional manual wiring, truly meeting the "minute-level" response requirements for emergency power supply.

[0017] 2. The distributed architecture of this invention has no single point of failure, the master node failure switching time is less than 1 second, the load is imperceptible, the system availability reaches 99.99%, it supports mixed connection of power supply equipment of different manufacturers, different capacities and different types, the capacity can be flexibly expanded from tens of kW to several MW, it is plug and play, it does not power on if not locked, it automatically reduces power under large vibration, and it has soft protection against extreme vibration. The design avoids safety hazards such as arcing, electric shock, and fire. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a diagram showing the overall hierarchical architecture of the emergency power supply system of the present invention; Figure 2 This is a flowchart illustrating the steps of the vibration adaptive emergency power supply method of the present invention; Figure 3 This is a block diagram of the vibration adaptive control logic of the present invention. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Vehicle-mounted Mobile Emergency Power Supply System for Power Disaster Relief This embodiment describes a mobile emergency power supply system configured for power outages by a provincial power company. Mounted on an 8×8 heavy-duty off-road chassis, the system is configured as follows: one 200kW / 400kWh lithium iron phosphate mobile energy storage vehicle as the main unit; two 50kW / 100kWh pluggable swappable energy storage modules as expansion units; and two modified pure electric pickup trucks (30kW / 60kWh each) as mobile replenishment units. The total rated capacity of the system is 360kW / 720kWh, outputting 380V three-phase AC. It can simultaneously meet the power supply needs of two emergency repair vehicles, one on-site command center, and ten sets of emergency lighting. It supports continuous power supply while the vehicles are in motion and can expand its capacity to handle loads within one minute of stopping.

[0022] Specific hardware configuration of each unit: Each unit is equipped with the fast self-organizing network interface of this invention at its end. The forced alignment mechanism adopts a 45° cone angle stainless steel tapered guide post and guide sleeve. Tests have verified that this cone angle minimizes the alignment force, allows a radial mating deviation of ±5mm, and does not require precise alignment. The floating multi-core connector integrates 2 300A DC power pins (high conductivity copper alloy substrate, hard gold plating on the contact parts, plating thickness ≥1.27μm, initial contact resistance <0.1mΩ), 2 CAN communication pins (shielded twisted pair), and 2 DN12 liquid-cooled quick connectors (cut-off type, leak-free insertion and removal). The connector as a whole... Mounted on eight circumferentially evenly arranged stainless steel helical springs, the spring stiffness is matched and designed to achieve radial ±1.5mm and angular ±2° floating compensation, completely offsetting the relative displacement caused by docking deviation and vibration; the electromagnetic locking assembly uses four circumferentially evenly arranged electromagnetic locks with a rated voltage of 24V. When energized, the electromagnet attracts the armature and compresses the spring, and the locking pin retracts (unlocked state). When de-energized, the spring pops out and the locking pin inserts into the locking hole (locked state). The locking holding force is greater than 2000N. Each lock is equipped with a Hall effect position sensor to detect the extension position of the locking pin. Power output is only allowed when all four locks are in position.

[0023] The specific configuration of the vibration adaptive compensation device is as follows: The triaxial accelerometer uses the ADXL355 low-noise MEMS sensor from Analog Devices (ADI), with a sampling frequency of 100Hz, a measurement range of ±4g, and a resolution of 0.1mg; the bandpass filter circuit uses a fourth-order Butterworth active filter with a passband of 0.5~10Hz and an out-of-band attenuation greater than 40dB / decade, effectively filtering out low-frequency components of vehicle acceleration and deceleration and high-frequency vibration components of the engine; the magnetorheological damper uses the RD-8041 magnetorheological damper from Lord, arranged between the floating connector mounting plate and the unit housing, with a damping coefficient that can be continuously adjusted between 100~1000N·s / m and a response time of less than 10ms; the contact resistance monitoring unit uses a high-precision differential amplifier to measure the voltage drop across the power pins, and calculates the contact resistance in real time based on the output current, with a measurement accuracy of 0.01mΩ. When the contact resistance exceeds 0.5mΩ, the electromagnetic locking current is automatically increased to increase the contact pressure and reduce the contact resistance.

[0024] System power-on initialization procedure: After the system is first powered on or after being left to stand still for more than 24 hours, the magnetorheological damper automatically executes an anti-settling self-test agitation procedure: the main controller controls the excitation current to output a sweep frequency signal with decreasing amplitude (the frequency linearly decreases from 10Hz to 1Hz, lasting for 3 seconds), driving the damper piston to perform reciprocating micro-movements with an amplitude of ±2mm, so that the ferromagnetic particles settled in the magnetorheological fluid are resuspended uniformly. After the self-test agitation is completed, the system is allowed to enter the normal active control mode to ensure the accuracy and consistency of the damping coefficient response.

[0025] The specific configuration of the distributed adaptive energy management system is as follows: Each unit has a built-in ARM Cortex-A7 industrial-grade controller running a Linux operating system. The controllers communicate with each other via a 5.8GHz industrial Wi-Fi Mesh self-organizing network with a communication bandwidth of 300Mbps and an end-to-end latency of less than 10ms. The software uses the Raft consensus algorithm to elect the master node. The election scoring rules are: SOC weight 60%, communication signal strength weight 25%, and controller load weight 15%. The node with the highest score becomes the master node. The master node sends a heartbeat every 500ms. If a slave node does not receive a heartbeat for three consecutive times, it initiates a re-election. The election process takes less than 1 second. The unified application layer protocol adopts the CANopen extended protocol. The frame format includes a 1-byte device type code, a 2-byte capacity declaration, a 4-byte status word, a 4-byte power command, and a 2-byte CRC check. It supports plug-and-play for various devices such as energy storage vehicles, battery swapping modules, electric vehicles, photovoltaic panels, and loads. The circulating current suppression function uses droop control + fine-tuning voltage to control the circulating current between parallel modules to within 1% of the rated current.

[0026] On-site deployment and working process: S1 Rapid docking: After the emergency vehicle arrives at the fault site, staff drive two battery swapping modules and two electric pickup trucks around the energy storage vehicle, roughly align them with the interface positions, and push them in. The tapered guide post automatically guides the module, and the floating connector automatically compensates for positional deviations. After docking, the electromagnetic lock is de-energized and automatically ejects the locking pin. The position sensor detects that all four locks are in place. The entire single-module docking process takes an average of 8 seconds and requires no tools. S2 Self-organizing network election: After each module is powered on, it automatically sends a Mesh networking request. The entire network is formed after 1.2 seconds. Each node broadcasts its own status. According to the scoring rules, the energy storage vehicle SO C85% was the highest, with the best communication signal, and was elected as the main controller. The entire election process took 1.2 seconds. S3 Black Start: The main controller detected a total available capacity of 360kW. First, it controlled the energy storage vehicle to establish a 750V DC bus voltage (first closing the pre-charge contactor, and then closing the main contactor after the bus voltage reached over 95% of the set value). Then, it sequentially closed the DC contactors of other modules, synchronizing the output voltage of each module, and started the PCS to output 380V / 50Hz three-phase AC. From the completion of the first module connection to the stable AC output carrying the load, the total time was 22 seconds, meeting the design requirement of power supply within 30 seconds. S4 Vibration Dynamic adaptive control: When the vehicle is idling, the vibration acceleration is 0.18g, the system operates at its rated state, the electromagnetic locking current is 2A, the magnetorheological damping coefficient is 300N·s / m, and the full power output is 360kW. When the vehicle is traveling on a Class III gravel road, the normal road surface vibration is 0.4~0.6g (exceeding the first threshold of 0.3g), the system automatically increases the locking current to 5A and the magnetorheological damping coefficient to 700N·s / m, increases the connection stiffness, suppresses micro-motion, and maintains full power output. When passing through a washboard road, the vibration acceleration reaches 1.1g (exceeding the second threshold of 0.8g), and the system detects that the contact resistance has decreased from 0. The resistance increased from 18mΩ to 0.25mΩ, and the derating factor k was automatically set to 0.7. The calculated value was P_limit=P_rated×max(0.3,1-0.7×(1.1-0.8))=0.79P_rated, meaning the output was drated to 79% of the rated power (284kW). At the same time, the lockout current was increased to 6A to increase the contact pressure, at which point the contact resistance dropped back to 0.2mΩ. After passing through a washboard road, the vibration dropped back to 0.15g, and after 5 seconds, the system automatically restored all parameters to the rated values. During the journey, a large pothole was encountered, and the impact acceleration reached 2.3g for a sustained period of 0.For the first 5 seconds, because the duration was less than 2 seconds, the system only performed a momentary derating and did not cut off power. S5 Dynamic Power Allocation: The actual load on site was 250kW. The main controller allocated power proportionally according to the SOC of each unit: the energy storage vehicle output 140kW at 85% SOC, the two battery swapping modules each output 40kW at 80% SOC, and the two electric vehicles each output 15kW at 70% SOC. Circulating current was monitored in real time, and the output voltage of each module was fine-tuned to keep the circulating current below 2A. S6 Topology Healing: One hour after power supply, an electric pickup truck needed to go to another location for rescue. The staff simply disconnected the interface and drove the truck away. The system detected the node offline within 0.8 seconds, automatically redistributed power, and other modules increased output to fill the gap. Throughout the process, the AC voltage fluctuation was less than 5%, and the load was not affected. Later, a 40kW mobile lighting load was added on site. The staff connected a 40kW third-party energy storage module (following the unified protocol of this invention). After docking, the module automatically broadcast its own information, and the main controller identified the new module within 300ms and automatically included it in the power allocation, without any manual configuration.

[0027] Type test results: An 8-hour random vibration test (vibration spectrum 0.5–10 Hz, total acceleration RMS 1.2g, simulating off-road terrain) was conducted on a vibration test bench. The system of this invention operated continuously at full power. After the test, the connector contact resistance changed from 0.18 mΩ to 0.22 mΩ, a change of 0.04 mΩ, with no overheating, arcing, or wear marks. In contrast, the comparative test using a traditional threaded connector showed a contact resistance rising to 3.7 mΩ after 2 hours, with obvious burn marks on the pin surface, and the connector detached and lost power after 4 hours. Reliability test: A forced power-off of the master node resulted in a system re-election in 0.9 seconds, with an AC output interruption time of less than 10 ms. Sensitive loads such as servers and communication equipment showed no restarts or abnormalities. Dating speed test: The average time for 10 docking attempts was 8.2 seconds, with a fastest of 6 seconds and a slowest of 11 seconds, significantly faster than the 12 minutes / module of traditional wiring.

[0028] Comparative Example 1: Modular Energy Storage System with Traditional Threaded Connection + Centralized EMS Using a traditional modular system with the same capacity as in Example 1, the connectors are copper busbar bolt connections, and energy management is handled by a centralized controller. In the same off-road driving power supply test: docking time was 12 minutes per module, and docking three modules took 38 minutes; after driving 10 kilometers, inspection revealed that two connector bolts were loose, contact resistance rose to 4.8mΩ, pin temperature reached 87℃, and slight arcing was observed; after a simulated power outage by the centralized main controller, the system went completely black, with a restart recovery time of 6 minutes and 20 seconds, and all loads were interrupted; connecting a new module required manual address setting, DIP switch configuration, and parameter configuration, taking 11 minutes.

[0029] Comparative Example 2: Standard quick-connect connector + modular system with vibration-free control Using a standard industrial quick-connect connector without vibration adaptive control, the connector underwent arcing and burning after 15 minutes of full-power operation under 1.0g vibration. The contact resistance instantly rose to 20mΩ, triggering the system overcurrent protection to cut off power.

[0030] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any device-plus-function clause is intended to cover the structure described herein for performing the function, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0031] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0032] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A mobile scene vibration adaptive modular emergency power supply system, characterized in that, include: Several modular energy storage power supply units, wherein each modular energy storage power supply unit includes at least one mobile energy storage vehicle, several mobile electric vehicles or pluggable battery swapping energy storage modules, and each unit is independently packaged and has an independent PCS power conversion unit. The fast self-organizing network interface device is integrated into the connection end of each modular energy storage power supply unit. It is used to realize the integrated blind mating of mechanical connection, power transmission and communication connection between different units. It includes a forced alignment mechanism, a floating multi-core connector, an electromagnetic locking component and a locking position sensor. The vibration adaptive compensation device includes a triaxial accelerometer, a bandpass filter circuit, a magnetorheological damping vibration isolation mechanism, and a contact resistance monitoring unit. Its output is connected to the drive circuit of the electromagnetic locking component, the control terminal of the magnetorheological damper, and the power limiting interface of the PCS. It is used to dynamically adjust the electromagnetic locking force, vibration isolation damping, and interface transmission power according to the real-time vibration state in the mobile scenario. The Distributed Adaptive Energy Management System (DA-EMS) consists of local controllers distributed in each modular energy storage power supply unit via a wireless self-organizing network. It has no fixed master controller and is used to automatically elect a master node, dynamically identify the capacity of newly connected units, and allocate the output power of each unit in real time, so as to realize stable power supply of multiple units in parallel in mobile scenarios.

2. The mobile scene vibration adaptive modular emergency power supply system according to claim 1, characterized in that: The rapid self-organizing network interface device is an integrated blind-mating interface that integrates power, communication, and liquid cooling. The forced alignment mechanism consists of a tapered guide sleeve and a tapered guide post with a tapered angle of 30° to 60°, allowing a radial position deviation of ±5mm during docking. The floating multi-core connector includes a power pin, a communication pin, and a liquid-cooled quick connector. The connector is mounted on a circumferentially arranged helical spring or leaf spring, which can achieve radial floating compensation of ±1.5mm. After docking, it is automatically locked by an electromagnetic locking component.

3. The mobile scene vibration adaptive modular emergency power supply system according to claim 1, characterized in that: The triaxial accelerometer in the vibration adaptive compensation device has a sampling frequency of no less than 100Hz, and the bandpass filter circuit is a 0.5-10Hz bandpass filter used to filter out low-frequency components and high-frequency electrical noise caused by vehicle acceleration, deceleration, and attitude changes, retaining only the effective vibration components caused by road bumps and engine vibration. The magnetorheological damping vibration isolation mechanism is arranged between the floating connector and the mounting base, and can adjust the damping coefficient in real time according to the vibration magnitude to achieve active vibration isolation. The contact resistance monitoring unit uses a four-wire Kelvin measurement method to monitor the contact voltage drop of the power pin in real time, calculate the contact resistance value, and automatically adjust the electromagnetic locking force to increase the contact pressure when the contact resistance exceeds the threshold.

4. The mobile scene vibration adaptive modular emergency power supply system according to claim 1, characterized in that: The vibration adaptive compensation device is configured to execute three-level vibration adaptive control logic with a hysteresis interval: The effective value of vibration acceleration 'a' is obtained by real-time acquisition and filtering; The action threshold is set to 0.3g, and the recovery threshold is set to 0.25g. When a exceeds 0.3g and the duration is ≥200ms, increase the electromagnetic locking current and simultaneously increase the damping coefficient of the magnetorheological damper to improve the connection stiffness. When a exceeds 0.8g and the duration is ≥200ms, the maximum allowable transmission power of the PCS interface is reduced proportionally, down to a minimum of 30% of the rated power; When a falls below 0.25g and lasts for more than 5 seconds, the lockout current, damping coefficient, and transmission power are gradually restored to their rated values; the difference between the action threshold of 0.3g and the recovery threshold of 0.25g constitutes a hysteresis dead zone to prevent control oscillation.

5. A mobile scene vibration adaptive modular emergency power supply system according to claim 4, characterized in that: When the vibration exceeds the second threshold, the derating formula for the interface transmission power is: P_limit=P_rated×max(0.3,1-k·(a-0.8)), where k is a derating coefficient of 0.5 to 1.0, which is dynamically adjusted according to the real-time value of the contact resistance: the larger the contact resistance, the larger the value of k. The vibration adaptive compensation device also has a vibration feedforward control function, which obtains information about road bumps ahead or vehicle suspension vibration signals by connecting to the vehicle's CAN bus, and adjusts the locking force and damping coefficient 100 to 500 ms in advance to achieve composite control of feedforward and feedback.

6. The mobile scene vibration adaptive modular emergency power supply system according to claim 1, characterized in that: The electromagnetic locking assembly is a double-safety structure that maintains its position even when power is off: when energized, the electromagnetic force attracts the armature, which drives the locking pin to insert into the locking hole, thus achieving automatic locking; when power is off, the built-in mechanical spring maintains the locking pin in the inserted position, preventing the connection from being broken due to power failure; the locking position sensor detects the position of the locking pin in real time, and power transmission is only allowed when the locking pin is fully in place. Power output is prohibited when the pin is not locked or not locked properly, thus avoiding arcing during insertion and removal under load.

7. The mobile scene vibration adaptive modular emergency power supply system according to claim 1, characterized in that: In the Distributed Adaptive Energy Management System (DA-EMS), the main controller is dynamically generated by each local controller through the Raft election algorithm. The election criteria include a weighted score of each unit's remaining power SOC, communication signal strength, and controller computing power. The unit with the highest score becomes the main controller. When the main controller goes offline, communication is interrupted, or a fault occurs, the system automatically completes a re-election within 1 second without interrupting power supply. After a newly connected modular unit is connected, it automatically broadcasts its type, rated capacity, and current SOC to the entire network. The main controller automatically includes it in the power allocation, achieving plug-and-play functionality without manual configuration.

8. The mobile scene vibration adaptive modular emergency power supply system according to claim 1, characterized in that: The fast self-organizing network interface device adopts a unified application layer communication protocol. The frame format includes a device type code, capacity declaration field, status word field, power command field, and check field, supporting interoperability and parallel connection of energy storage units, electric vehicles, and battery swapping modules from different manufacturers and with different capacities. The DA-EMS also has a dynamic circulating current suppression function, which detects the output current difference of each parallel unit in real time and achieves circulating current suppression by fine-tuning the output voltage of each unit, thus avoiding parallel circulating current caused by changes in contact resistance due to vibration.

9. A method for adaptive emergency power supply for mobile scenarios based on the system described in any one of claims 1-8, characterized in that, Includes the following steps: S1 Modular Unit Quick Connection: Move each modular energy storage power supply unit to the designated position, and achieve blind insertion and connection through the forced alignment mechanism of the quick self-organizing network interface. The electromagnetic locking component automatically detects the position and locks it. After the position sensor confirms that the locking is reliable, the mechanical connection is completed. S2 self-organizing network and master node election: After the local controller of each unit is powered on, it automatically forms a wireless network and elects a master controller within 2 seconds based on a weighted score of SOC, communication quality and computing power. S3 Automatic Capacity Identification and Black Start: The main controller automatically identifies the type, capacity and SOC of all connected units, and automatically coordinates each unit to achieve black start in the absence of an external power grid, establishing a stable AC or DC bus voltage. S4 Vibration Adaptive Closed-Loop Control: The vibration adaptive compensation device of each unit collects the vibration acceleration in real time. After being filtered by a 0.5-10Hz bandpass filter, the electromagnetic locking force, magnetorheological damping and transmission power are dynamically adjusted according to the vibration magnitude. At the same time, the contact resistance is monitored in real time and the contact pressure is adjusted to achieve reliable power supply in moving vibration scenarios. S5 Dynamic Power Allocation: The main controller dynamically allocates the output power of each unit in real time according to the load size and the SOC of each unit. Units with high SOC output more power and units with low SOC output less power, while suppressing parallel circulating current. S6 Dynamic Topology Healing: When a unit fails, disconnects, or a new unit is connected, the system automatically re-elects a master node and redistributes power, completing the topology update within 1 second without interrupting the power supply to the load.

10. The method for adaptive emergency power supply in mobile scenarios according to claim 9, characterized in that: In step S4, the recovery delay time for vibration control is 3 to 10 seconds to avoid frequent parameter switching caused by the instantaneous drop in vibration. When the effective value of vibration acceleration continuously exceeds the extreme shutdown threshold of 2.0g and the duration is ≥2 seconds, the system determines it to be an extreme vibration condition, controls the PCS to softly reduce the power to 0 and issues an audible and visual alarm. After the vibration acceleration drops below 0.3g and remains stable for 3 seconds, it automatically performs a soft start to reconnect to the grid and supply power. The entire networking process does not require manual wiring and configuration. The connection time of a single module does not exceed 10 seconds, and the time from the completion of the connection of the first module to the system being powered by the load does not exceed 30 seconds, which can realize rapid emergency power supply in mobile scenarios.

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