148results about How to "Rapid isolation" patented technology

The invention discloses a waterproof composite material production intelligent control system, and relates to the technical field of control systems, the system comprises a data acquisition layer, a standard template generation module, a data processing layer, a Transform-based model core layer and an output layer, the data acquisition layer acquires production data in real time; a data processing standard template is generated through a standard template generation module, standardization processing is conducted on real-time data through a data processing layer, production process modeling and production state analysis are conducted through a Transform model core layer, an analysis result is decoded into a control instruction through an output layer, and production line process parameters are adjusted. The production process is intelligently and optimally controlled by applying the artificial intelligence technology, the intelligent level, the operation efficiency and the product quality of the production line are remarkably improved, meanwhile, the production goals of energy conservation, efficiency improvement and intrinsic safety are achieved through refined management and control and whole-process safety protection, and intelligent and green development of the waterproof composite material industry is promoted.

The invention discloses a power distribution area reactive compensation control method based on an energy storage PCS converter, and the method comprises the following steps: 1, data collection and processing: collecting the power parameters of a power distribution area in real time through employing the technology of Internet of Things, such as voltage, current, active power, reactive power, and frequency; the data preprocessing module is used for cleaning, filtering and normalizing the collected data to ensure the accuracy and consistency of the data; 2, constructing a multi-objective optimization model; designing an objective function; and constructing a multi-objective optimization model comprising reactive power compensation, active power optimization, voltage stability and energy efficiency improvement. According to the invention, the performance and reliability of the reactive compensation control method for the power distribution area based on the energy storage PCS converter are effectively improved, and more efficient and more stable power grid operation is realized; the system can quickly isolate a fault unit after detecting a fault, realizes cooperative work among multiple PCS converters through distributed optimization, and ensures stable operation of the system.

The invention relates to the technical field of power maintenance, and discloses a power distribution network-oriented single-phase earth fault AI comprehensive research and judgment system, which integrates a power distribution network monitoring module, a fault diagnosis equipment module and an AI comprehensive research and judgment module. The system can accurately judge the type, position and severity of the single-phase earth fault by monitoring and collecting all-dimensional data of the power distribution network in real time and combining intelligent analysis of the AI comprehensive research and judgment module, and the accuracy of fault positioning and isolation is remarkably improved. The AI comprehensive research and judgment module adopts a Markov decision process for modeling, and a deep reinforcement learning algorithm is used for training a research and judgment model, so that rapid fault positioning, isolation and power supply recovery are realized, the fault processing efficiency and the power supply recovery speed are effectively improved, and the power failure time and the influence on users are reduced.

The invention discloses an automatic feeder fault processing method based on a 5G network, and the method improves the fault processing capability of a power distribution network through the high speed, low delay and high safety of the 5G communication network, can quickly position a fault region through the information exchange between power distribution terminals in combination with the fault signals of the power distribution terminals and adjacent terminals, and improves the fault processing efficiency. Therefore, quick isolation of a fault section is achieved, when a fault occurs, the power failure range is controlled within the minimum range, the power failure time is shortened, fault positioning and control decision making are completely and autonomously completed by the power distribution terminal, the whole processing process does not depend on a power distribution main station, and the main station only needs to receive a fault processing result afterwards; according to the method, the network topology structure can be automatically updated when part of power distribution terminals have communication faults, the operation states of all nodes and circuit breakers in a power distribution line can be monitored in real time, remote measurement can be conducted on voltage, current, power factors and the like, and operation parameter curves of all the nodes can be displayed in real time.

The invention provides a modified vermiculite-based lithium ion battery fire extinguishing agent and a preparation method thereof.The modified vermiculite-based lithium ion battery fire extinguishing agent is prepared from, by mass, 5-30% of LDHs / vermiculite compound, 0.5-3% of stabilizer, 0.5-3% of dispersing agent, 2-4% of dispersing aid, 0.5-3% of thickening agent, 0.1-1% of preservative and the balance water, the sum of the mass percentages of all the raw materials is equal to 100%. The fire extinguishing agent prepared by the invention has both physical and chemical fire suppression effects, solves the problem that an original vermiculite-based fire extinguishing agent only depends on physical fire suppression and is low in fire extinguishing efficiency, and can quickly extinguish a fire of a lithium ion battery and effectively suppress re-combustion of the lithium ion battery.

The invention discloses a multi-level security authentication method and system, and relates to the technical field of the Internet of Things, and the method comprises the steps: enabling a new node to verify the anti-quantum signature legality and behavior feature trust score of an identity certificate through a neighbor node according to a dynamic authentication path, and outputting a device layer authentication result; according to the equipment layer authentication result, selecting a verification node in an authentication path to carry out identity recheck and trust score weighted updating on a new node to obtain a neighbor layer authentication result and a whole network trust score; based on the neighbor layer authentication result, the core node verifies the whole network trust score and anti-quantum signature legality of the new node through the dynamic authentication atlas, and performs updating and anomaly detection on the dynamic atlas; through anti-quantum signature verification and behavior feature trust scoring, the ability of new node authentication to resist quantum computing attack and malicious node disguise is enhanced.

The invention relates to a snowflake-type power distribution network self-healing processing logic optimization method, system and device and a medium, and belongs to the technical field of power system automation, and the method comprises the following steps: constructing a protection cooperation rule of snowflake-type power distribution network self-healing logic and a low-voltage photovoltaic grid-connected circuit breaker; optimizing the centralized logic of the master station; and constructing a distributed rapid self-healing logic based on the protection cooperation rule and the optimized master station centralized logic so as to optimize the self-healing processing logic of the snowflake type power distribution network. According to the invention, by introducing the direction signal and the direction relay, the problem that the relay protection system misjudges the fault current of multiple power supply ends is effectively solved, and wrong circuit breaker tripping events are reduced. The optimized fault processing logic can isolate a fault area more quickly, power supply to a non-fault area is recovered, and the reliability and stability of a power grid are improved.

The present invention discloses a distribution network monitoring system based on 5G Internet of Things, comprising: a distribution network connected to a plurality of distribution network terminals via cables, a processing module provided with a conversion circuit and a processor, a data acquisition module monitoring the power consumption data of the distribution network in real time for 24 hours, and a protection module playing a protective role when the power consumption data of the distribution network is abnormal. The inspection module transmits back the captured video by means of an unmanned aerial vehicle inspection, and uses video monitoring to supervise the distribution system, transmits back diagnostic data, and realizes a panoramic view of the distribution network. The distribution network monitoring system can measure the distribution data and the video image of the distribution network, and transmits data with the help of 5G technology, so as to provide timely protection when a fault occurs in the distribution network. 5G communication is not limited by the number of channels erected and the grid structure of the grid. 5G communication is used to exchange information between multiple protection terminals in the grid area, so that the response is faster and the use effect of the monitoring system is improved.

The invention discloses an intelligent substation merging unit fault diagnosis and self-healing method based on tensor decomposition, and the method comprises the steps: collecting all operation data of a merging unit from a sensor network of an intelligent substation in real time, carrying out the processing, organizing the processed data into a tensor form, and outputting multi-dimensional data; decomposing the multi-dimensional data by using a tensor decomposition method, extracting fault features, and detecting the fault features to obtain a detection result; and determining the position and the type of the fault based on the detection result, starting a self-healing control strategy, and automatically repairing the fault by taking corresponding measures. Through the adaptive control technology, automatic repair of faults is realized, the self-healing capability of the intelligent substation is enhanced, and the reliability and stability of the system are improved.

The invention provides a bypass control method and system suitable for a high-voltage cascade type energy storage system, electronic equipment and a medium, and belongs to the field of energy storage systems. The high-voltage cascade type energy storage system comprises energy storage units, each energy storage unit comprises a plurality of H-bridge power unit chain links, the direct current side of each H-bridge power unit is connected with a battery cluster, and the method comprises the steps that when a certain H-bridge power unit or battery cluster in the high-voltage cascade type energy storage system breaks down, the fault type is judged; if it is determined that the fault type is a bypass fault, the energy storage unit is switched to a bypass mode through switching, so that the fault unit is bypassed; and if the fault is determined to be a non-bypass fault, triggering the high-voltage cascade type energy storage system to trip and stop through the power conversion system. Through design and implementation of an automatic bypass function, rapid isolation can be ensured when a battery cluster or a power unit breaks down, operation of the whole energy storage unit is not affected, and a system can rapidly respond and maintain stable operation.

The invention provides a hydrogen production system which comprises at least one water electrolysis hydrogen production device used for electrolyzing water to produce hydrogen and oxygen, and each water electrolysis hydrogen production device comprises a hydrogen-alkali mixture outlet and an oxygen-alkali mixture outlet; a hydrogen-alkali mixture outlet or an oxygen-alkali mixture outlet of each water electrolysis hydrogen production device is independently provided with a gas analysis device and an alkali liquor supply adjusting device, and the gas analysis device is used for analyzing the hydrogen purity of the hydrogen-alkali mixture outlet or the oxygen purity of the oxygen-alkali mixture outlet of the water electrolysis hydrogen production device. The alkali liquor supply adjusting equipment is used for supplying and adjusting alkali liquor of the water electrolysis hydrogen production equipment, and the problems that gas produced by an existing electrolytic bath is separated and analyzed through the same separator, the electrolytic bath with poor gas product purity in a system cannot be diagnosed, and then the faulted electrolytic bath cannot be rapidly positioned and isolated, and the system is not easy to operate are solved. And the electrolytic bath alkali liquor cannot be independently supplied and adjusted, so that the hydrogen production efficiency of the electrolytic bath in the hydrogen production system is low.

The present invention relates to a distribution network fault processing method and system with coordinated self-adaptation between a master station and a terminal, wherein fault processing of the master station and the terminal is allocated according to a fault processing strategy, a distribution network fault location model is used to locate the fault during the master station processing, and after the fault is isolated, the active loads in the distribution network are classified according to the regulation capability and the power supply is restored to the non-fault power outage area according to the classification. The present invention effectively uses the coordinated self-adaptation control mode of the master station and the terminal to realize the rapid location, isolation and recovery of intelligent distribution network faults, thereby improving the efficiency and accuracy of fault location.

The invention discloses a DC micro-grid fault diagnosis method based on a reduced-order unknown input observer. The method comprises the following steps: S1, calculating a state transition matrix, a control matrix, an observation matrix and a control input observation matrix of a state space model of each converter and line; s2, voltage and current of the alternating current side and the direct current side of each converter and interelectrode voltage and current at the two ends of a line are collected, and input quantity and output quantity of the state space model of each converter and the line are calculated; s3, calculating a state transition matrix, a control matrix, an observation matrix and a control input observation matrix of the state space model during steady-state operation of the direct-current micro-grid system; s4, calculating a direct current micro-grid system fault component matrix; s5, designing a sensitivity matrix; s6, stabilizing the reduced-order unknown input observer; s7, calculating a normalized residual error output by the observer; and S8, calculating a fault reconstruction error, and judging a fault sequence number. According to the method, whether the fault occurs in the DC micro-grid can be rapidly detected, and the method has important practical significance on rapid isolation of the fault and guarantee of safe and stable operation of the system.

The invention relates to the technical field of electric power control, in particular to an intelligent electric power operation monitoring control method and system. The method comprises the following steps: acquiring data uploaded by a power station; performing power station distribution network construction on the data uploaded by the power stations to obtain a power station distribution network; performing data storage on the power station uploading data by using the power station distribution network to generate standard power station distribution storage data; line integration is carried out on the power station distributed storage data, a power station transmission network is generated, and the power station transmission network comprises a power station module and a power line module; and performing dynamic power monitoring on the power station transmission network to generate power equipment monitoring data and power line monitoring data. According to the invention, the precision and comprehensiveness of power monitoring control are improved through construction of the power station network, dynamic monitoring, intelligent anomaly detection and automatic fault recovery.

The utility model relates to the technical field of preservation devices, in particular to a preservation device for microorganism sampling. The technical problems that according to an existing preservation device, due to the fact that preservation conditions and types of different microorganisms are different, mutual isolation between samples stored in glass bottles is poor, cross contamination is likely to happen when bottle caps are opened and closed for storage, meanwhile, air and other pollutants are likely to enter the bottles when the bottle caps are frequently opened for storing the samples, and the storage time is shortened are solved. The sample is polluted, and the preservation quality of the sample is influenced. According to the technical scheme, the preservation device for microorganism sampling comprises a storage tank, a sealing assembly, a storage assembly and a control assembly; the sealing cover is combined with the sealing strip to be buckled and sealed with the storage tank, so that air and external pollutants are effectively prevented from entering the storage tank, microorganism samples in the storage tank are protected from being influenced by external factors, meanwhile, the situation that the samples in the storage tank are leaked or volatilized to cause deterioration of the samples is avoided, and the storage stability of the microorganism samples is improved.

This utility model discloses a tunnel fire-fighting foam liquid filling system, belonging to the field of fire-fighting equipment technology. It includes several fire boxes, a foam liquid filling vehicle, and a monitoring center. Both the fire boxes and the foam liquid filling vehicle are networked with the monitoring center to achieve data exchange. Specifically, each fire box contains a foam liquid storage tank and a first control device. The foam liquid storage tank is equipped with a first liquid level sensor, a solenoid valve, a variable frequency delivery pump, and a first flow meter. A flow regulating valve and a second flow meter are installed on the pressure water pipe. All components are connected to the first control device. The foam liquid filling vehicle contains a foam liquid storage tank, a variable frequency high-pressure pump, a battery, a third flow meter, and a second control device. Both the first and second control devices are connected to the monitoring center. This utility model provides a highly efficient, intelligent, and easy-to-maintain tunnel fire-fighting foam liquid filling system.

The present disclosure relates to a method, system, device and medium for optimizing the self-healing processing logic of a snowflake-type distribution network, and belongs to the field of power system automation technology. The method comprises the following steps: constructing the protection coordination rules of the snowflake-type distribution network self-healing logic and the low-voltage photovoltaic grid-connected circuit breaker; optimizing the master station centralized logic; constructing a distributed fast self-healing logic based on the protection coordination rules and the optimized master station centralized logic to optimize the self-healing processing logic of the snowflake-type distribution network. The present disclosure effectively solves the problem of the relay protection system misjudging the fault current of multiple power supply terminals by introducing directional signals and directional relays, and reduces the erroneous circuit breaker tripping events. The optimized fault processing logic can isolate the fault area more quickly, restore power supply to the non-fault area, and improve the reliability and stability of the power grid.

The invention relates to the field of modular charging, in particular to a modular charging mechanism for a power pack and a management method thereof, and the modular charging mechanism comprises a power supply placement table which provides placement space for a plurality of groups of power supplies and is arranged in an array manner; the modular mechanism is arranged on the outer side of the power supply placement table, is arranged corresponding to the power supply placement table, and is used for carrying out centralized modular charging on multiple groups of power supplies to realize synchronous or independent power supply; according to the modular charging mechanism for the power pack and the management method of the modular charging mechanism for the power pack, when abnormal high temperature occurs to the power supply, a melt is heated and melted to trigger a linkage mechanism, and a limiting plate is driven to be automatically stored through spring reset and gear transmission, so that the temperature of the power supply is lowered, and the reliability of charging is improved. And the power supply is quickly released from being clamped.

The invention provides a power distribution network protection setting value optimization method and device, electronic equipment and a storage medium, and the method comprises the steps: carrying out the analysis of the matching condition of a power distribution network based on equipment basic parameters, an initial protection setting value ledger and an operation mode, generating a protection setting value initial mismatch point ledger, carrying out the pre-calculation of a protection setting value, and carrying out the calculation of an initial mismatch point ledger; after a pre-calculation protection setting value ledger is generated, the matching condition is counted, and a setting calculation mismatching point and an event level thereof are determined; checking the setting calculation mismatch point and the protection setting value of the adjacent equipment, counting the checking result to form a checking mismatch point, recalculating the event level of the checking mismatch point, comparing the checked protection setting value with the initial protection setting value based on the calculation result, and adjusting the protection setting value according to the comparison result. The problem that a protection device acts inaccurately or is not timely due to the fact that an existing protection constant value cannot adapt to power grid operation state changes can be solved, and it is ensured that the protection constant value accurately reflects actual operation conditions of a power grid.

This invention discloses a rapid splicing control method for high-efficiency liquid-cooled energy storage modules, relating to the field of energy storage system technology. It includes five core control steps: pre-configuration before splicing involves reading module identity and parameters via wireless communication, verifying compatibility, and generating a splicing sequence; physical splicing employs visual and mechanical collaborative positioning, dynamically adjusting to ensure precise interface alignment; the liquid-cooled circuit opens the reversing valve in a timed sequence, monitoring pressure and flow to achieve leak-free connectivity; the electrical interface uses adaptive detection to match protocols and voltage, with soft-start to avoid current surges; after splicing, a collaborative algorithm dynamically allocates power and flow, with closed-loop control ensuring stable system operation. This invention significantly improves the splicing efficiency and positioning accuracy of liquid-cooled energy storage modules, possesses fault tolerance and flexible expansion capabilities, adapts to large-scale and distributed energy storage scenarios, and meets the high-efficiency and reliable operation requirements of energy storage systems.

The application discloses a CXL switch fault port triggered mainboard level task migration and memory page redirection mechanism, comprising: monitoring the health state of a SerDes physical layer and detecting port faults; classifying faults according to the deviation degree of health parameters; independently isolating fault ports at the hardware level according to fault levels; reporting fault events to a baseboard management controller, which queries a port-device-task association graph to identify affected tasks, evaluates the migration feasibility of other available CXL devices and generates migration suggestions to perform task migration and redirection of the memory page under the fault port. The application realizes rapid detection and independent isolation from the port hardware level, full-link cooperation of mainboard level task migration and memory redirection, and improves the end-to-end fault recovery capability of the system.

The invention relates to the technical field of intelligent fire fighting, and discloses an unattended indoor fire-fighting robot which is characterized in that the discharge end of one side of a pressurizing box is connected with a fire extinguishing nozzle, the other side of the top of a mounting plate is provided with a monitoring box, and the bottom of the monitoring box is provided with a monitoring instrument for fire monitoring; according to the fire extinguishing device, the limiting winding box is driven by the threaded seat to rotate, winding and unwinding of the traction cable are achieved, the rotating pipe automatically deflects to the horizontal position under the dead weight by unwinding the traction cable, fire extinguishing dry powder is conveyed into the rotating pipe, the fire extinguishing dry powder is evenly distributed to a fire extinguishing area through the distribution holes, and the fire extinguishing effect is improved. The fire extinguishing dry powder is sprayed to the fire extinguishing position in a circumferential distribution mode by combining rotation of the rotating pipe, so that the fire extinguishing dry powder can surround the fire position in a cylinder shape, the use effect of the fire extinguishing dry powder is improved, the actual fire extinguishing isolation area is expanded, the fire area is rapidly isolated, fire spreading is prevented, and loss is reduced.

The application belongs to the technical field of lithium batteries, and particularly relates to a hybrid battery system structure, which comprises a box body, an A module, a B module, an A area explosive disposal system and a B area explosive disposal system. An isolation beam is arranged in the box body, and the isolation beam divides the internal space of the box body into an A area and a B area. The A module is arranged in the A area, and the B module is arranged in the B area. The A area explosive disposal system comprises an explosive disposal gas collection bin arranged below the A area and a longitudinal explosive disposal channel arranged on the side of the box body and in communication with the explosive disposal gas collection bin. The B area explosive disposal system is arranged above the B area and in communication with each second battery cell explosive disposal valve. The A area explosive disposal system and the B area explosive disposal system are not in communication with each other. The application realizes physical isolation, thermal isolation and electrical isolation of different chemical system battery cells, and effectively prevents a single side thermal runaway from spreading and causing a chain reaction accident.

The invention relates to an offshore wind power and conventional power supply direct current bundling and sending-out system. The invention provides an offshore wind power and conventional power supply direct-current bundling and sending-out system, which aims at solving the problems of existing offshore wind power sending-out, and comprises an offshore wind power flexible direct-current sending-out system, a conventional power supply flexible direct-current sending-out system and a direct-current bundling and sending-out system. The offshore wind power flexible direct current sending-out system comprises an offshore wind power unit group, an alternating current collection submarine cable, an offshore flexible direct current converter station and a direct current sending-out submarine cable. The conventional power supply flexible direct current sending-out system comprises a conventional power supply, an alternating current power transmission line, a land flexible direct current converter station and a direct current power transmission line; the direct-current bundling and sending-out system comprises a direct-current incoming line, a land direct-current pooling station and a direct-current outgoing line. The offshore wind power fluctuation can be stabilized, and the influence of the offshore wind power fluctuation on system stability is reduced; the requirements of various operation modes are met, and direct-current fault isolation and alternating-current fault ride-through are realized; the power transmission cost is saved.

The invention relates to the field of relay protection device debugging, and provides a relay protection debugging synchronous triggering device and method, which are characterized in that a triggering signal simulation module and a touch module are positioned in the same clock source through a clock module, so that the debugging accuracy is improved; three modes of timing triggering, synchronous triggering and external signal triggering are supported, and the test requirements of multiple scenes can be met. The multi-channel synchronous triggering module is used for distributing signals to the corresponding tentacle modules; the tentacle module can respectively control the connection / disconnection of an input terminal of the relay protection device, the connection / disconnection of a port of the relay protection tester and the disconnection of the air switch according to an application scene; the control module can receive and process a feedback signal and calculate an action time difference in real time; and automatic fault detection and standby module switching are realized, so that the fault module can be quickly isolated and the standby module can be started. The method can solve the problem that protection logic action conditions are difficult to synchronize due to scattered operation sites of a substation site, and can replace manual work to realize remote cooperation and maximize synchronization.

The invention relates to the field of energy storage power station control, and particularly discloses a layered distributed emergency stop control system of an energy storage power station, which comprises a local emergency stop control unit used for executing shutdown control of at least part of equipment in the energy storage power station; the regional emergency stop control unit is associated with all local emergency stop control units in a regional coverage range and is used for executing shutdown control of equipment in the regional coverage range in the energy storage power station; and the station end scram control unit is associated with the all-region scram control unit and is used for executing all-region shutdown control of the energy storage power station through the station end controller when the station end scram button is triggered. According to the technical scheme provided by the invention, through the arrangement of the regionalized distributed layered emergency stop control units, the reliability risk that the existing emergency stop control system is easily influenced by the single-point fault of the central controller is avoided, and the omnibearing precise shutdown control and local isolation protection of the energy storage power station are realized.

This utility model discloses a cooling device for precipitation of phenylhydrazine hydrochloride mother liquor, comprising a refrigeration compressor, an oil separator fixedly connected to the output end of the refrigeration compressor, an evaporative condenser fixedly connected to the main outlet of the oil separator, an auxiliary ammonia storage tank fixedly connected to the outlet of the evaporative condenser via a first pipeline, an ammonia tank fixedly connected to the outlet of the auxiliary ammonia storage tank via a second pipeline, a shut-off valve installed at the connection between the ammonia tank and the second pipeline, and a thin-film evaporator fixedly connected to the outlet of the ammonia tank via a third pipeline. The main outlet of the thin-film evaporator is fixedly connected to a brine tank. Through the above structure, a buffer system is formed by the interlocking of the ammonia tank, the auxiliary ammonia storage tank, and the double shut-off valves, which can quickly isolate the ammonia source in case of emergency shutdown. In addition, the use of a closed-loop system with a low-temperature brine medium can effectively reduce energy consumption, thereby preventing the waste of cooling capacity caused by intermittent production.

An electric steering engine includes a rudder bar, a large gear assembly and multiple drive mechanisms, the multiple drive mechanisms are circumferentially distributed on the outer periphery of the large gear assembly, a through hole is opened at the center of the large gear assembly, the rudder bar is located in the through hole and is coaxially connected to the large gear assembly; the drive mechanism includes a drive assembly, a pinion assembly, a suspension device, and a sliding assembly, the suspension device is located on the outer periphery of the large gear assembly and a support is provided on the lower side, the pinion assembly is located in the suspension device, the drive assembly is located on the upper side of the suspension device and the output end is connected to the upper end of the pinion assembly, the pinion assembly is meshed and connected to the large gear assembly, the pinion assembly is sleeved with two rollers matching the shape of the large gear assembly, the two rollers are respectively located on the upper and lower sides of the large gear assembly, and the sliding assembly is installed in the suspension device. This design can not only prevent jamming, but also has a stable structure and high reliability.

The invention relates to the field of vehicle-mounted transformers, and provides a vehicle-mounted traction transformer gas protection method, system, equipment and medium, and the method comprises the steps: monitoring the pressure and temperature of transformer oil in a transformer, and obtaining the state of a pressure relief valve; in response to the abnormal internal pressure, when the pressure relief valve triggers the protection action, a main circuit breaker tripping signal is generated, and the whole vehicle stops running; when the internal pressure is normal and the pressure relief valve does not trigger the protection action, the protection action is triggered according to the gas relay protection signal, and gas delay protection is carried out; and responding to temperature abnormity, starting temperature alarm, checking the state of the gas relay, and controlling the vehicle to run. According to the method, through reasonable cooperation of gas protection hardware parameter setting and protection logic, on the premise that internal faults of the transformer are quickly responded and isolated, and vehicle application safety is guaranteed, the reliability and application vitality of the whole vehicle and the traction transformer are further improved.