283 results about "Supply and distribution" patented technology

The invention relates to a network topology dynamic optimization method and equipment for large-scale power supply and distribution equipment networking. The method comprises the following steps: step S101, real-time data acquisition and state sensing; step S102, carrying out network topology modeling and performance evaluation; step S103, dynamic risk assessment and optimization target generation; s104, carrying out topological optimization decision making based on a feasibility maintenance type genetic algorithm; step S105, carrying out optimal strategy verification and seamless switching; selecting an optimal network topology reconstruction scheme from the Pareto optimal solution set according to a preset decision strategy; and after the reconstruction scheme is verified on a control level, generating an equipment cascade and open circuit control instruction sequence, and guiding related nodes to complete undisturbed switching of the network topology in a preset time window through a distributed cooperative control mechanism. According to the method, generation of invalid solutions can be avoided, and the convergence efficiency of a large-scale network topology optimization algorithm is remarkably improved.

The invention relates to the technical field of power electronics and power supply and distribution, and discloses a data center AC / DC power distribution system input and output voltage and current monitoring method, which comprises the following steps: deploying an intelligent sensing unit with edge computing capability at each monitoring node, sampling according to a basic frequency, and extracting effective values, harmonic distortion rates, differential change rates and other characteristics of voltage and current in real time; judging that the system is in a steady state, a quasi transient state or a strong transient state according to the multi-stage dynamic threshold value, and respectively executing feature abstract uploading, local high-frequency backtracking or collaborative full-waveform synchronous acquisition; and the central server classifies and stores the data, constructs a state evolution model, and dynamically optimizes threshold parameters. The system comprises an intelligent sensing unit, a central monitoring server and an industrial Ethernet link. According to the method, the steady-state data transmission quantity is remarkably reduced, transient details are completely captured, and adaptive adjustment of the monitoring sensitivity is realized.

The invention belongs to the technical field of power supply and distribution, and particularly relates to a hydrogen-lithium hybrid power supply multi-mode uninterruptible power supply system, a control method and a storage medium, and the system comprises a hydrogen energy power supply vehicle, a lithium battery energy storage unit, a power conversion subsystem PCS, a voltage phase tracking module, a static change-over switch STS and a control unit. According to the invention, through cooperative work of the lithium battery and the hydrogen fuel cell, millisecond-level rapid switching during commercial power failure is realized, continuity of load power supply is ensured, and the problem of starting delay of a traditional hydrogen energy system is solved. Intelligent cooperative control of hydrogen energy and lithium batteries is realized according to different scenes, energy distribution is optimized, and the operation efficiency and stability of the system are improved. The control unit monitors the operation state of each part of the system in real time, calculates the dynamic efficiency and grid-connected / off-grid stability control quantity of the system, generates a control signal according to the dynamic efficiency and the grid-connected / off-grid stability control quantity, coordinates the work of each part, and ensures that the system can operate efficiently and stably in various operation modes.

The invention discloses a short-circuit current limiting and short-circuit recovery transient voltage control device and method for an aviation three-stage power generation system, and the device comprises a three-stage power generator, a power generator controller, a current sensor, a voltage and current collection module, and an asymmetric half-bridge excitation control circuit. Collecting the output current iL and voltage UL of the generator through a digital processor of the generator controller; when short circuit occurs, the given voltage USet of the voltage regulating loop is linearly reduced in a piecewise mode according to the relation between the iL and a preset threshold value, so that the generator works in a constant power interval; and when the short circuit is recovered, closing the upper / lower power tubes of the asymmetric half-bridge excitation control circuit according to the relationship between UL and a preset threshold value in a grading manner, and triggering a negative-pressure follow-current mode of a main excitation winding of the generator controller to quickly extinguish the field. The method can adapt to different generators without adjusting hardware circuit parameters, has no motor ablation risk during short circuit, has transient voltage less than 350V after short circuit recovery, has no power supply interruption in the whole process, has response delay less than 1ms, and greatly improves the safety and robustness of an aviation power supply and distribution system.

The invention relates to the technical field of low-voltage power supply and distribution systems, and discloses a dual-power-supply quick switching circuit for a low-voltage power supply system, which comprises a main power supply, a standby power supply, a circuit breaker QF1, a circuit breaker QF2, a relay KA1, a relay KA2, an alternating current contactor KM1, an alternating current contactor KM2 and a load, the main power supply is connected with the circuit breaker QF1, one path of the QF1 is connected with the KM1, and the KM1 is connected with the load; the other path is connected with the KA1 from the QF1, the KA1 is connected with the KM2, the KM2 is connected with a coil of the KM1 and then connected with the zero line N, and the 1B phase line and the 1C phase line of the main power supply are further connected with the two ends of the coil of the KA1; the standby power supply is connected with the circuit breaker QF2, one path of the QF2 is connected with the KM2, the KM2 is connected with the load, the other path of the QF2 is connected with the KA2 from the QF2, the KA2 is connected with the KM1, the KM1 is connected with a coil of the KM2 and then connected with the null line N, and the 2A phase line and the 2B phase line of the standby power supply are further connected with the two ends of the coil of the KA2. When the main power supply is abnormal, the standby power supply can be quickly switched to avoid shutdown of the lower-level equipment, the standby power supply can be automatically switched after the lower-level short circuit fault is isolated, and the power supply reliability of the low-voltage power supply and distribution system is greatly improved.

The invention relates to the technical field of transformer substation monitoring, and discloses a power supply and distribution safety monitoring method and system for a transformer substation. The method comprises the following steps: acquiring various data in a transformer substation, and performing time synchronization calibration on the three types of data; dividing a power supply and distribution operation mode into a steady-state mode, a transient mode and an overload mode based on the calibrated data, extracting a harmonic distortion rate, a dielectric loss angle tangent value and a vibration spectrum entropy value of a current waveform in each mode, and generating an operation characteristic matrix; detecting an operation mode switching event, and calculating a characteristic offset between modes; decomposing a degradation characteristic component in the operation characteristic matrix according to a matching degree between an insulation aging stage and current dielectric loss data in a historical fault case library; coupling compensation correction is performed on the degradation characteristic component in combination with the cross influence relationship between the electrical parameters and the mechanical parameters of the equipment; and reversely tracing the abnormal signal source equipment node along the topological structure of the power supply and distribution network based on the corrected degradation characteristic component, and outputting an equipment maintenance sequence.

The invention discloses a reinforcement learning-based cable arrangement method and system in a power supply and distribution system, and a storage medium. The method comprises the following steps of S1, obtaining cable information, laying environment information and constraints required to be met by cable laying; s2, abstracting a bridge system into a weighted undirected topological graph; s3, calling a path planning algorithm based on reinforcement learning, and calculating an optimal cable laying path by taking a minimum comprehensive cost function including path length cost, plot ratio cost and precious penalty terms as an optimization target under the constraint that cable laying needs to be met; s4, calculating the center coordinate of each cable to be arranged in each bridge by adopting a greedy algorithm according to the optimal cable laying path, and arranging the cables according to the center coordinate; according to the method, the optimal laying and arrangement path can be planned on the premise of meeting various physical constraints of cable laying, and the method can automatically and dynamically adapt to different laying scenes.

The invention belongs to the technical field of power supply and distribution of a data center, and provides an electrical protection method and system for power supply and distribution of the data center, aiming at the data center of a 2N power distribution architecture, electric energy parameters of two paths of external mains supply are collected and transmitted to an EMS of an energy storage system, and system charging and discharging power is controlled and adjusted through the EMS. According to the fact that the sum of the power on the two alternating current buses is larger than a set protection threshold value, the first switch device is controlled to cut off the connection between the energy storage system and the second alternating current bus, overload of a superior line or a transformer during charging or power supply switching is prevented, and in addition, through the measures of a reverse power detection device, first-path voltage loss linkage and the like, the energy storage system can be effectively protected. An external electrical protection system independent of the energy storage system is added to form dual protection, so that a dual fault superposition scene of energy storage system faults or power grid faults is effectively isolated, and the reliability of an originally designed power supply network of the data center is guaranteed.

The invention provides a power supply and distribution control method for an offshore wind-solar complementary direct supply type seabed data center, and the method comprises the steps: collecting wind power and photovoltaic electric energy to an ashore substation through a same AC power transmission channel, converting the wind power and photovoltaic electric energy into a first AC voltage, and generating a DC bus voltage; the direct-current bus directly supplies information processing load, and the first alternating-current voltage drives the cooling system; configuring a multi-time-scale energy storage system comprising a super capacitor, a flow battery and a standby power supply, and stabilizing second-level, minute-to-hour-level and longer-period power fluctuations respectively; based on wind and light output prediction and the energy storage charge state, load and charge and discharge are dispatched cooperatively. According to the method, the power transmission cost and conversion loss are reduced, the green power consumption rate and the power supply quality are improved, the dependence on outsourcing power is reduced, and efficient, stable and low-carbon operation is realized.

The invention discloses an electric energy feedback collection and load peak suppression system for a wharf crane, and relates to the technical field of wharf power supply and distribution and energy management. Wherein the wharf crane comprises a quayside container crane (quay crane), a rail or rubber-tyred container portal crane (gantry crane) and the like, which are called cranes for short hereinafter. According to the system, instantaneous power, average power, peak duration and power increasing rate of a wharf power station, feedback power and feedback electric energy of a crane, capacity and charging and discharging parameters of an energy storage device, and electric energy quality indexes of a power grid are collected in real time; respectively calculating a peak impact index, a feedback absorption coefficient, a peak valley switching coefficient and a harmonic suppression coefficient, and comparing and analyzing with a preset threshold to generate a corresponding strategy; and integrating the results of the modules, carrying out unified scheduling on the energy storage device, and realizing power fluctuation compensation and stable output through a smooth scheduling strategy, thereby constructing an operation mechanism. According to the method, the instantaneous peak power of the wharf power station can be effectively inhibited, the feedback energy consumption capability is improved, the peak-valley scheduling economy is optimized, the electric energy quality is improved, and the safety, stability and energy efficiency of system operation are improved.

The invention belongs to the technical field of power supply and distribution systems, and discloses a direct current power supply and distribution system and method of a nuclear power station facing a computing power data center, and the system comprises a direct current power supply and distribution architecture of a main power supply system, a medium-voltage direct current system and a low-voltage direct current system. Alternating current of a main power supply system is converted into medium-voltage direct current to be supplied to a medium-voltage direct current system through a first voltage conversion module, then the medium-voltage direct current is converted into low-voltage direct current to be supplied to a low-voltage direct current system through a second voltage conversion module, and the medium-voltage direct current system directly supplies power to a low-voltage system when a main power supply fails. And when the main power supply and the medium-voltage system both fail, the low-voltage system operates independently to meet the load requirement. By adopting the system, the equipment investment and the operation cost are obviously reduced, the electric energy transmission efficiency and the power supply reliability are improved, the potential safety hazard is eliminated, and the efficient cooperative power supply of the station power of the nuclear power station and the load of the data center is realized.

The invention provides a power supply and distribution system fault early warning method and system based on multi-parameter trend analysis, and relates to the field of power monitoring. The method comprises the following steps: collecting multi-parameter time sequence data of a power supply and distribution system, and carrying out working condition environment box classification to obtain a classified data set; a sliding window algorithm is adopted to extract time sequence features of the classified data set, the change trend slope of parameters in each window is calculated through linear regression, and trend feature data are obtained. And based on the trend feature data, judging an abnormal trend and generating an abnormal mark and an associated parameter set. And performing fault positioning analysis and temperature rise coefficient calculation on the abnormal mark and the associated parameter set, performing fault state identification in combination with short-term environment data, and generating a fault positioning analysis result. And generating an early warning signal based on a fault positioning analysis result. The technical problems of fault early warning lag and low positioning accuracy caused by lack of analysis of multi-parameter variation trend and no elimination of environmental factor interference are solved.

The invention discloses a low-voltage transformer area topology identification method and system based on node mutual impedance characteristic identification, and relates to the technical field of power supply and distribution. The identification method comprises the following steps: firstly, synchronously acquiring voltage and current time sequence data of the head end of a transformer area and each user node; constructing and solving a mathematical model based on a circuit superposition principle to obtain a user node mutual impedance coefficient matrix; the impedance feature vector of each user node is extracted, the difference value between the self-impedance and the mutual impedance is calculated, and the difference value is compared with a preset judgment threshold value based on physical parameters, so that the relationship between the upstream and the downstream of the user nodes and the same access point is accurately judged; and finally, reconstructing a complete tree-shaped physical topology of the transformer area. According to the method, only existing measurement data is utilized, extra hardware is not depended on, efficient and accurate automatic identification of the topological structure of the low-voltage transformer area is achieved, and reliable support is provided for refined operation and maintenance such as power distribution network line loss treatment and fault positioning.

The invention discloses a vehicle-mounted adaptive multi-mode intelligent switching power supply system, and belongs to the electrical field. The system comprises a diesel generating set, a dual-power-supply automatic switching control box, an uninterruptible power supply, a power battery pack, an alternating-current power distribution unit, a direct-current power supply, a direct-current power distribution unit, an alternating-current switching box, a master control panel and a power supply and distribution system cable network. The diesel generating set is used as a standby power supply and is automatically switched with the mains supply through the dual-power-supply automatic switching control box; the uninterruptible power supply realizes alternating current conversion and battery inversion backup; the direct-current power supply provides low-voltage direct-current output; the alternating-current and direct-current power distribution units realize electric energy distribution and control; the alternating current switching box realizes single-path input and multi-path output; and the master control panel centrally controls the start, stop and on-off of the system. The system has the characteristics of multi-mode self-adaption, intelligent switching, fault self-recovery and high reliability, and is suitable for stable power supply of vehicle-mounted equipment such as a military command vehicle.

The invention provides an SST driving type high-voltage full-direct-current power supply framework suitable for an MW level computing power cabinet, and belongs to the technical field of data center power supply and distribution. The SST driving type high-voltage full-direct-current power supply framework comprises a solid-state transformer, the solid-state transformer comprises a rectifier and a dual-active-bridge converter which are cascaded, and the rectifier is connected with medium-voltage alternating current of a power grid and used for converting the medium-voltage alternating current into direct current of a first voltage value and outputting the direct current to the dual-active-bridge converter; the dual-active bridge converter is used for converting the direct current of the first voltage value into direct current of a second voltage value and outputting the direct current through the direct current bus, and the second voltage value is smaller than the first voltage value; and the data center load is connected to the direct current bus, and the rated voltage of the data center load is matched with the second voltage value. The MW level computing power cabinet can improve the transmission efficiency, adapts to MW level power density, realizes high-speed dynamic response to adapt to the load characteristics of the AI data center, and is beneficial to saving the space of a machine room and improving the computing power density.

The invention relates to the technical field of power supply and distribution systems, and discloses a state-aware undisturbed switching control method for a heat pipe cooling double-loop system, which comprises the following steps of: acquiring a hot node temperature and a steady-state integral operator value of a main heat dissipation distribution branch for representing a power load heat dissipation state, and synchronously monitoring cold-state temperature response data of a standby branch; constructing a dynamic thermal resistance topological model and substituting a steady-state integral operator numerical value to inversely calculate an integral preset initial value; according to the invention, the switching logic is reconstructed to an automatic control function unit logic domain, a mechanical execution dead zone and phase change latent heat hysteresis are cooperatively eliminated, and the thermal power regulation execution unit is controlled to be stable and reliable. Transient thermal pulsation of a power distribution environment is suppressed, and thermal safety of a high-power load power supply link is guaranteed.

The application discloses a solar array simulator equalization power supply and distribution control system, and relates to the technical field of solar energy, which comprises a first photovoltaic module, a second photovoltaic module, a low-voltage detection module, an electric energy transmission module, a voltage stabilizing module, a first energy storage module, a second energy storage module, an isolation voltage transformation module, an equalization module and a micro-control module. The solar array simulator equalization power supply and distribution control system can improve energy storage efficiency and control voltage balance, improve the utilization rate of electric energy and prolong the service life.

The invention discloses a distributed photovoltaic aggregation frequency modulation standby optimal configuration method considering node frequency security constraints under transmission and distribution cooperation. The method comprises the following steps: describing uncertainty of photovoltaic aggregation frequency modulation capability by using a Gaussian mixture model, and establishing a power transmission network node frequency response model containing frequency space distribution characteristics; taking minimization of system power generation and frequency modulation reserve cost as a target, and combining opportunity constraint planning to construct an optimal configuration model; a response model is reduced based on a frequency divider theory, a Bernstein polynomial approximates frequency dynamics, and a differential algebraic equation is converted into an algebraic equation; then, binary expansion and Gaussian mixture model linear invariance are utilized to convert the model into a mixed integer linear programming model, and Bernstein polynomial convex hull property tightening constraint is combined; and finally, solving the model to obtain the optimal photovoltaic aggregation frequency modulation reserve capacity and control parameters. The frequency space distribution is accurately described, the problem of insufficient frequency safety risk identification is solved, and the frequency safety level of a power system is improved.

The invention provides a topological structure of a power supply and distribution system of an all-electric propulsion satellite. The topological structure comprises a power supply control and distribution unit, an integrated battery, a solar cell array, a deconcentrator, a load distributor, an electrical connection device, at least one group of independent propulsion module batteries, independent propulsion module equipment and ground charging and power supply equipment, the power control and power distribution unit adjusts electric energy and manages power distribution; an integrated battery stores energy and supplies power; the solar cell array supplies power during illumination; the power supply and distribution switching process comprises the following steps of: supplying power by a solar cell array before separation, supplementing an integrated battery in an earth shadow period, and shelving an independent propulsion cabin battery; in the separation conversion stage, the primary satellite stops supplying power, and the independent propulsion module is powered by a battery and detonated for separation; and after separation, the main satellite is electrically propelled to transfer orbits to predetermined orbits, and the independent propulsion cabins are powered by batteries to deorbit. Therefore, the system is suitable for the design of a power supply and distribution subsystem of a satellite containing a primary satellite and an independent propulsion module, the integration level is high, the single-machine integration level is large, and system optimization is simple and reliable.

The invention belongs to the technical field of textile automatic control, and provides a blank pipe tray feeding, supplying and distributing system for tray type automatic spooling equipment, which sets a simulation operation period, and performs stability analysis on passing interval time of trays on a path A and a path B in the divided simulation operation period; judging whether the tray interval time on the path A and the path B is stable or not, respectively acquiring a representative value of the tray interval time A and a representative value of the tray interval time B according to the stable condition of the tray interval time on the path A and the path B, and performing supply shunting matching degree analysis to determine the matching degree on shunting time of the path A and the path B; the closing time and the releasing time of the anti-blocking device can be reasonably set by determining the matching degree, it is ensured that the tray can smoothly pass through the intersection according to the matching degree condition, the matching degree of the A path and the B path in the shunting time is determined, and the A path and the B path can supply empty pipe trays to the CBF channel according to the reasonable time rhythm.

The purpose of this invention is to disclose a power supply and distribution method and system for a gas-fired micro power station. By dividing the generator sets into a constant power output group and other supplementary groups, when the power changes, only one of the constant power output group or the other supplementary groups needs to be controlled. This solves the technical problem that generator sets in the power station come from different manufacturers, the gas control systems are different, and multiple systems are incompatible, making parallel operation impossible. Peak shaving and valley filling are achieved through energy storage modules. Energy storage resists load changes and seamlessly switches with diesel generator start-up, reducing the number of generators used and forming a hybrid power supply mode that combines generators and energy storage. This avoids problems such as generator tripping, motor overheating, and large energy loss in the power station caused by load impacts.

The invention discloses an important data error correction method suitable for an aerospace power supply and distribution single machine. According to the method, the Hamming code principle and the binary coding principle are utilized, and the characteristics of a microcontroller of the aerospace power supply and distribution stand-alone are combined, so that an error correction coding and decoding method is designed. According to the method, the single-machine micro-control system can correct a certain degree of data bit flipping errors under the condition that the data bit flipping errors occur under the influence of space environments such as space single particles, errors of important data caused by the space environments are reduced, and then part of autonomous control operations threatening spacecraft safety are prevented from occurring.

The invention provides an intelligent power supply and distribution monitoring and early warning system for an electric power room, and relates to the technical field of electric power safety. The system comprises a multi-type sensor, an RFID reader, an antenna, a gateway and a cloud platform. The multiple types of sensors are installed at a plurality of preset monitoring positions of a power distribution cabinet body, and an exclusive RFID tag is integrated in each sensor. The RFID reader and the antenna are fixed on the inner wall of the power distribution cabinet body, and the RFID reader is connected with the antenna through a shielding coaxial cable; the RFID reader establishes a wireless link with the RFID tag through the antenna; and the RFID reader is in network communication with the cloud platform through the gateway. The problem that an existing monitoring scheme is difficult to guarantee stable transmission of monitoring data can be solved.

The invention belongs to the technical field of power supply and distribution management, and particularly relates to a cross-modal prediction method and system for wind and light power, a terminal and a storage medium, and the method comprises the steps: combining a preset dynamic Prompt weight adjustment rule based on an obtained cross-modal fusion feature, and carrying out the prediction of the wind and light power according to the short-term and middle-term layering of a preset time range. And meanwhile, calculating a gradient norm of a prediction loss function in the pre-trained large model after adaptation, and when the gradient norm meets a preset threshold value, triggering parameter updating of the LoRA adaptation module and recalculation of cross-modal feature fusion to obtain a wind-solar power prediction result after hierarchical updating. The layered prediction and dynamic updating mechanism can respond to data change in real time and adjust model parameters in time, so that a prediction result can better adapt to rapid change of an actual scene, and the real-time performance and accuracy of prediction are improved.

The invention discloses a self-locking circuit for a low-voltage power supply and distribution system, which integrates the functions of starting, self-locking keeping, overcurrent protection, state indication and resetting, is completely composed of analog and digital hardware electronic components, does not need to be controlled by any software program, and is simple in structure and convenient to use. The method is suitable for industrial automation, safety equipment power supply and other scenes with high reliability requirements.

The invention belongs to the field of power supply and distribution, and particularly relates to a method for monitoring and identifying a broken line grounding fault in a high-voltage winding of a distribution transformer in a Dyn wiring mode in real time. The method comprises the following steps: S1, monitoring high-voltage side zero-sequence voltage and low-voltage side voltage data of the distribution transformer in real time; s2, obtaining high-voltage side zero-sequence voltage data, and setting the high-voltage side zero-sequence voltage data as a judgment basis 1; s3, synchronously collecting three-phase voltage of a low-voltage side, and designing a judgment basis 2; and S4, in combination with the judgment basis 1 and the judgment basis 2, diagnosing the internal condition of the high-voltage winding in the corresponding transformer, and correspondingly prompting the fault condition. High-voltage side data are collected through a voltage transformer, and low-voltage side data are collected in real time through an existing port meter or a low-voltage fusion terminal. Zero-sequence voltage is calculated through high-voltage-side three-phase voltage data collected by a voltage transformer, or the zero-sequence voltage is directly measured through a secondary circuit opening triangle of the voltage transformer, and generation of the high-voltage-side zero-sequence voltage serves as a starting condition.

The invention discloses a power supply and distribution abnormal value disposal method for a metallurgical steel plant, and the method comprises the steps: continuously detecting the power supply and distribution data of the metallurgical steel plant in real time through an advanced data collection module, and carrying out the precise comparison with a preset standard fluctuation interval, thereby rapidly recognizing an abnormal value. When an abnormal value occurs, the data processing module is started immediately, the influence of external factors (such as weather conditions, manual operation and animal interference) and equipment faults on the power supply and distribution system is analyzed deeply, and corresponding treatment measures are generated accordingly. If an abnormal value is caused by external factors and does not cause long-term influence on equipment, the system automatically optimizes a standard fluctuation interval to adapt to actual operation conditions, and in addition, a feedback module verifies a disposal effect to ensure that the abnormity is properly handled. The method can significantly improve the stability and operation efficiency of the power supply and distribution system, reduces the production risk, and is an important auxiliary means for management of metallurgical steel plants.

The invention discloses a multi-platform cooperative take-off and landing unmanned aerial vehicle transportation support vehicle based on intelligent control, and belongs to the technical field of special vehicles. The transport vehicle comprises a vehicle chassis, a transport carriage, a lifting device, a secondary expansion mechanism, a vehicle control system and a power supply and distribution system, the vehicle chassis is used for supporting the whole vehicle, the transport carriage is fixed to the vehicle chassis, and an upper-layer bearing space and a lower-layer independent bearing space are formed in the transport carriage. A lifting device is arranged on the upper-layer bearing compartment and can move upwards to the outside of the transportation compartment for the unmanned aerial vehicle to take off; a second-stage extension mechanism is longitudinally arranged in the lower-layer bearing space, and the second-stage extension mechanism can extend to the side part to release the unmanned aerial vehicle; the vehicle control system controls all the mechanisms to act in a linkage mode, the unmanned aerial vehicle is locked and unlocked, and charging is started and stopped, and the power supply and distribution system supplies power to electric equipment of the whole vehicle and the unmanned aerial vehicle. The method has the advantages that the requirement for collaborative operation of multiple unmanned aerial vehicles is met, the technical problems that the number of traditional unmanned aerial vehicle transport vehicles is limited, and operation collaboration is poor are solved, and the method is suitable for diversified operation scenes.

1. Name of the product in this design: Power distribution device (explosion-proof high-voltage assembly for mining). 2. Purpose of this design: A high-voltage power supply and distribution device used in underground coal mines with explosion hazards for controlling, protecting, and measuring high-voltage power supply systems. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.