193 results about "Traction substation" patented technology

The invention relates to a railway traction substation state monitoring method and system, equipment and a medium. The monitoring method comprises the following steps: acquiring real-time monitoring data of the equipment in a railway traction substation; performing data preprocessing on the real-time monitoring data to obtain a preprocessed monitoring data set, performing protocol identification, and converting heterogeneous data in the monitoring data set into structured data according to a preset protocol template library; based on the structured data, time-frequency domain characteristic parameters of the equipment are extracted, and a multi-dimensional characteristic matrix is constructed; inputting the multi-dimensional feature matrix into a pre-trained hybrid diagnosis model, and generating an equipment health degree score and a fault probability value; according to the health degree score and the fault probability value, generating an early warning instruction in combination with a dynamic threshold algorithm; and generating a priority maintenance strategy through a maintenance strategy optimization model based on the early warning instruction and the equipment maintenance resource constraint condition. According to the invention, accurate perception and intelligent decision making of the equipment state are realized in a multi-source heterogeneous data environment.

The invention discloses a zero-carbon intelligent electrified highway transportation system, and relates to the technical field of highway transportation green low-carbon and new energy automobiles, and the system comprises the following components: an energy supply and management module which supplies power through the combination of an external power grid and a renewable energy power generation micro-grid, carries out the voltage reduction and rectification of a traction substation, and outputs the power to a power supply module; a renewable energy power supply proportion dynamic adjustment formula is utilized, and the total central control platform dynamically adjusts the power supply proportion according to the power consumption demand and the energy reserve, so that stable power supply is guaranteed; through close cooperation of the energy supply and management module and the vehicle energy utilization module, electric power is obtained from the overhead contact line system in real time in the driving process, the problems that a new energy heavy truck is short in driving mileage and low in energy supplementing efficiency are effectively solved, the transportation efficiency is greatly improved, the requirement for long-distance freight can be better met, and the transportation cost is reduced. And the road freight industry is powerfully promoted to develop in a more efficient and more convenient direction, and the competitiveness of transportation enterprises in the market is remarkably enhanced.

The invention discloses a distributed cooperative voltage control method for a hybrid flexible traction substation group, and aims at solving the problems of output voltage cooperation, no-load circulating current suppression and multi-substation load distribution during networking operation of a plurality of hybrid flexible traction substations (HFTSS). Rapid synchronization of output voltage phases of the substations is achieved by introducing an average consistency algorithm, and nearby distribution of train loads among the traction substations is achieved by combining self-adaptive virtual impedance. According to the method, the capacity of the hybrid flexible traction substation for coping with the dynamic change of the external power grid voltage phase can be effectively enhanced, the loss of a contact network is reduced, the regenerative braking energy utilization efficiency is improved, and a feasible path is provided for large-scale application of a low-cost hybrid flexible traction power supply system and improvement of a cooperative control technology system.

The invention discloses a lithium battery alternating current and direct current integrated power supply device and a control method. The lithium battery alternating current and direct current integrated power supply device comprises a high-frequency switch rectifier module, a direct current converter, a coordination controller, an anti-reverse diode, a communication unit and a lithium battery system, the high-frequency switch rectifier modules are one-way AC / DC modules, the number of the high-frequency switch rectifier modules is one, the number of the high-frequency switch rectifier modules is one, the number of the high-frequency switch rectifier modules is one, the number of the high-frequency switch rectifier modules is one, the high-frequency switch rectifier modules are one-way AC / The modular design is adopted, capacity expansion and maintenance are convenient, parallel mixed use of different types of batteries is supported, the flexibility and reliability of the system are improved, a traditional lead-acid battery scheme can be effectively replaced, the problems of large potential safety hazards, short service life, difficulty in capacity expansion and the like of series design are solved, the requirements of a power system for high reliability, intelligence and modularization are met, and the application prospect is wide. The method is suitable for railway traction substations, station communication machinery rooms, power plants and other scenes.

The method is applied to the fields of train regenerative braking energy utilization, stray current and rail potential treatment and the like in electrified rail transit, especially urban rail transit. The invention provides a direct-current traction power supply system capable of reducing the energy storage capacity of a super capacitor of urban rail transit, which is combined with a super capacitor energy storage device of the urban rail transit and supplies power to a power electronic device for treating stray current and rail potential by utilizing regenerative braking energy of a train. The super-capacitor energy storage device has the following advantages that on one hand, the energy storage capacity of the super-capacitor bank in the super-capacitor energy storage device between train braking and traction can be reduced, and the utilization efficiency of regenerative braking energy stored by the super-capacitor bank is improved; on the other hand, the problems of stray current, rail potential and the like in the system can be solved from the source, and the power supply distance of a traction substation is remarkably increased. Therefore, the direct-current traction power supply system is of great significance to green and safe operation of urban rail transit.

The invention discloses a traction power supply system voltage mutual fuse monitoring method, system and device, relates to the technical field of traction power supply systems, and solves the problems that the existing traction power supply integrated automation system cannot monitor the continuous fusing process of a fuse, resulting in that the PT voltage is lower than the actual operation voltage, and the safety is poor. According to the technical scheme, the method is characterized in that according to the power supply characteristics of a traction substation, the operation condition of a voltage transformer of the substation is automatically recognized, and a fuse monitoring method of the voltage transformer is automatically selected according to the operation condition of the voltage transformer; and monitoring and early warning of incomplete fusing of the voltage transformer fuse are realized.

The invention discloses a railway traction station load prediction method and system, relates to the technical field of load prediction, and is used for solving the technical problems that the accuracy of railway traction station load prediction is low and actual requirements cannot be met in the prior art. The railway traction station load prediction method comprises the following steps: acquiring load data of a railway traction station; the load data comprises a training set and a test set; decomposing the load data into a plurality of narrowband intrinsic mode functions by constructing variational optimization; parameters in the variation optimization process are optimized; constructing a prediction model for each narrowband intrinsic mode function, optimizing parameters of the prediction model, and training the prediction model through the training set; after the training is completed, obtaining a first prediction result through the prediction model by using the test set, and restoring the first prediction result into an original load data dimension; and superposing and reconstructing prediction results obtained by all the prediction models to obtain a final prediction result.

The invention discloses an energy storage cophase power supply system based on a V-connection traction transformer, a control method and a storage medium, and belongs to the technical field of electrified railway power supply. The energy storage in-phase power supply system comprises a V-connection traction transformer, three single-phase compensation devices, an energy storage device and a coordination control device. The primary side of the V-connection traction transformer is connected with a three-phase power supply, and any port of the secondary side is connected with a traction load; aC ends of the three single-phase compensation devices are respectively connected to different ports of the secondary side, and DC ends are connected in parallel to a DC bus; the energy storage device is also connected in parallel with the DC bus. The coordination control device collects current and voltage signals and controls operation of the devices. The system has the functions of energy storage and in-phase power supply, and solves the problems of large traction load fluctuation of a traditional electrified railway traction substation, power return caused by train regenerative braking, train over-electricity split-phase stall and electric energy quality management.

The invention discloses an electrified railway hybrid electric energy quality treatment device which comprises a balancing transformer, a TCLC branch and an active electric energy quality regulator. The balancing transformer comprises a primary side end and a secondary side end, the primary side end is connected with a three-phase public power grid in the traction substation, the secondary side end is provided with a series winding used for being connected with an alpha-phase traction network and a closed-loop triangular winding used for being connected with a beta-phase traction network, and the closed-loop triangular winding is provided with a first self-coupling tap and a second self-coupling tap; the first self-coupling tap, the second self-coupling tap and the remaining vertexes are connected into the TCLC branch in parallel; and the other end of the TCLC branch is connected with an IGBT switch bridge arm of the active power quality regulator. The invention further provides an electrified railway hybrid power quality management control method. According to the device cooperation control method provided by the invention, the overall cost and the installation space of the device are effectively reduced on the premise that the problems of negative sequence, low power factor and harmonic waves existing in the traction substation are comprehensively treated.

A distributed grounding backflow monitoring system for a railway traction substation comprises an indoor equipment subsystem and an outdoor equipment subsystem. The outdoor equipment subsystem is composed of a plurality of centralized grounding box monitoring units and a plurality of voltage and integrity monitoring unit subordinate subsystems. The indoor equipment subsystem is arranged in a standard cabinet and comprises a man-machine interaction unit, a data storage and processing unit and a power supply module; the communication channel is mainly used for providing a channel for communication between subsystems, optical signals are selected, and electric signals can also be adopted. The utility model solves the problems of complex wiring, large work amount and large cable interference, and has the characteristics of convenient installation, modular layout and the like, an outdoor equipment power supply adopts an isolation transformer, a signal setting surge protector or an optical fiber, the safety influence of lightning stroke and overvoltage on indoor equipment is avoided, the overall power of the equipment is relatively large, and a regular polling mechanism is adopted, so that the safety of the equipment is ensured. The power consumption is reduced, the load is balanced, and the power configuration requirement is reduced.

The present invention discloses a main wiring structure of a hub traction substation, which includes two external power supplies and two groups of traction transformers. It also includes a switching unit, several feedback lines, and two independently arranged busbars. One group of busbars is powered by one power supply, and the other group of busbars is powered by the other power supply. Each group of busbars is configured with the same number of feeder lines to form two independent power supply devices that are physically isolated and electrically separated from each other; the feeder lines all pass through the switching unit (7) and the corresponding switches (8); switches (8) are provided on all the feeder lines to achieve switching between the two groups of power supply devices through the switching of the switches. The main wiring structure of the hub traction substation of the present invention sets two mutually independent power supply devices. Due to the achievement of physical isolation and electrical separation, when one group of devices fails or is struck by lightning, the other group of devices can be unaffected and quickly put into operation, thus restoring normal power supply and improving power supply reliability.

The application discloses a high-speed railway pantograph-catenary arc electromagnetic radiation interference modeling analysis method, constructs a pantograph-catenary arc-pantograph power supply system integrated model containing a traction substation model, a traction network model, a train traction transmission system model, a train-track return current grounding system model and a pantograph-catenary arc model; under a pantograph-off arc transient condition, arc current is obtained through simulation calculation; and based on the arc current, a relationship between arc radiation power and spatial equivalent electric field intensity is established to represent the influence of time-varying characteristics of traction network electrical parameters on pantograph-catenary arc electromagnetic radiation interference. Under the pantograph-off arc transient condition, the real-time changes of impedance and capacitive reactance parameters of the traction network are involved in the unified solution of arc current formation, radiation power evolution and spatial electric field intensity calculation, and meanwhile, key coupling factors of the train high-voltage system and the train-track grounding system are mainly considered, so that the accuracy and engineering applicability of pantograph-catenary arc electromagnetic radiation interference analysis are improved.

The invention belongs to the technical field of electrical monitoring, and particularly relates to a railway traction substation three-dimensional visual monitoring system, which comprises a data acquisition unit, a data processing unit and a data feedback interaction unit, and is characterized in that the data acquisition unit is used for acquiring working condition data of electrical equipment in a railway traction substation; comprising a fixed acquisition module and a mobile acquisition module; according to the invention, image information acquisition is carried out on dead corners which are difficult to cover by the fixed acquisition module through the mobile trolley, comprehensive coverage and full monitoring of the railway traction substation are realized under dynamic and static cooperation mutual verification, and the safety and reliability degree of information acquisition is improved; moreover, when the information acquisition devices corresponding to the fixed acquisition modules in part of the areas break down, the mobile trolley can be controlled to go to the fault area as a supplement, so that the blank of a monitoring network is filled, and the anti-risk capability of the whole railway traction substation monitoring system is improved.

The invention discloses a graphical fault distance measurement method and system, relates to the field of traction substation tripping fault mark distance measurement in the railway industry, and can read a fault report of a fault distance measurement device and constant value parameter configuration of the fault distance measurement device off line, and calculate and analyze a fault type, whether line current is balanced or not and a fault distance according to the data and parameters. And a result is graphically displayed, so that the distance measurement error range can be narrowed by modifying and verifying the constant value parameters, and the corrected constant value parameters are exported and stored, thereby achieving the purposes of facilitating fault analysis, improving the working efficiency and shortening the maintenance time. Maintenance personnel are helped to quickly find out fault points, timely process faults and recover normal operation of lines, and the method is very important for safe, reliable and efficient transportation of a railway system.

The present application relates to a method, system, equipment, and medium for monitoring the status of a railway traction substation. The monitoring method includes: obtaining real-time monitoring data of equipment in the railway traction substation; preprocessing the real-time monitoring data to obtain a preprocessed monitoring data set and performing protocol identification, and converting the heterogeneous data in the monitoring data set into structured data based on a preset protocol template library; extracting the time-frequency domain characteristic parameters of the equipment based on the structured data and constructing a multi-dimensional feature matrix; inputting the multi-dimensional feature matrix into a pre-trained hybrid diagnostic model to generate an equipment health score and a fault probability value; generating an early warning instruction based on the health score and the fault probability value in combination with a dynamic threshold algorithm; and generating a priority maintenance strategy based on the early warning instruction and the equipment maintenance resource constraints through a maintenance strategy optimization model. The present application realizes accurate perception and intelligent decision-making of equipment status in a multi-source heterogeneous data environment.

The utility model discloses a digital twin operation and maintenance data holographic sensing system for supporting a high-speed railway traction substation, which comprises a substation intelligent monitoring control system. A substation on-line monitoring subsystem, a substation dynamic ring measurement and control subsystem, a substation security monitoring subsystem, a substation unmanned aerial vehicle inspection system, a substation integrated automation system and a substation intelligent monitoring control workstation are respectively connected through a substation intelligent monitoring control switch. A one-way isolation device is arranged between the substation integrated automation system and the substation intelligent monitoring control switch and used for achieving one-way isolation when data of the substation integrated automation system is transmitted to the substation intelligent monitoring control system. The substation unmanned aerial vehicle inspection subsystem is connected with the substation intelligent monitoring switch through the substation wireless access security gateway; and the substation intelligent monitoring control system processes the accessed system data and transmits the processed data to the substation intelligent monitoring control workstation and the railway integrated data network.

The present application relates to the technical field of electrified railway control, and discloses a phase control closing method and a heavy haul locomotive circuit breaker, the method comprising: step one, establishing equivalent mathematical models for the heavy haul locomotive, traction substation, AT substation and traction network; step two, establishing a vehicle-network-station simulation model based on a MATALB / Simulink simulation platform; step three, obtaining the influence of different line loads on phase selection closing according to the vehicle-network-station simulation model; and step four, determining a phase control closing scheme and conducting test verification. The phase control closing and opening method of the heavy haul locomotive circuit breaker with the above structure can establish equivalent mathematical models for the heavy haul locomotive, traction substation, AT substation and traction network, and then establish a vehicle-network-station simulation model, analyze the influence of different line loads on phase selection closing, and determine a phase selection closing scheme according to the breakdown characteristics of the circuit breaker and the analysis results. The phase selection closing scheme determined through test verification can achieve the purpose of reducing the overvoltage of the closing system.

The invention provides an urban rail transit traction power supply flywheel energy storage and medium-voltage energy feedback collaborative optimization configuration method, and the method comprises the steps: introducing a flywheel energy storage unit FESE and an inversion energy feedback unit IEFE into an urban rail transit power supply system at the same time, and constructing an urban rail transit AC-DC hybrid power flow analysis model; taking the daily total cost and the static recovery period as targets to construct a comprehensive cost index; the number of FESEs and the number of IEFEs are used as discrete variables, a charging voltage threshold value and a discharging voltage threshold value of the FESEs and an action voltage threshold value of an inversion energy feedback unit are used as continuous variables, a hierarchical swarm intelligent optimization method is adopted, the purpose of minimizing a comprehensive cost index is taken as a target, and on the premise that the operation constraint of a power supply system is met, the power supply system is optimized. And outputting a collaborative optimization configuration scheme including the FESE number, the IEFE number and the sum of the FESE number and the IEFE number of the traction substations.

The invention discloses an intelligent traction power supply system power adjusting method and system. Comprising the following steps: calculating real-time transfer power, and calculating compensation current in real time by combining a power transfer error and negative sequence current; calculating a current tracking value based on the current inner loop instruction value and the voltage synchronization signal; designing a feedforward-feedback composite controller, and respectively calculating a feedforward compensation quantity and a feedback control quantity; based on the feedback control quantity and the feedforward compensation quantity, the total duty ratio of the PWM modulation signal is calculated, and a railway power regulator is driven to output an actual current value; the control method and system provided by the invention are low in engineering implementation cost, adaptive to the RPC application scene of the traction substation, and easy to popularize.

The application discloses a fault ranging method in a 1-2 mode of a traction power supply system feeder breaker, relates to the technical field of electrified railway traction power supply, and converts the uplink and downlink feeder currents of a traction substation by means of the cross-link current of an AT substation and a partition substation, so that the first fault interval from the traction substation to the AT substation can also be subjected to fault ranging by the fault ranging principle of the cross-link current ratio method. The method simultaneously considers the difference between type I and type II substation, and the fault ranging precision of the first fault interval can be improved by using the method, the ranging error is controlled within a range of 250 meters, the fault point can be quickly positioned by operation and maintenance personnel when a fault occurs, the fault is timely disposed and the line is recovered to normal operation, and the method has important significance for guaranteeing the safe, stable and efficient operation of a railway transportation system.

A kind of multi-bus traction substation self-healing reconfiguration failure recovery power supply method and system, including: in situ self-healing reconfiguration action, bus fault power supply low voltage side breaker refuses to divide, corresponding switch is locked by GOOSE signal, preset switch number constant value, breaker time delay is gradually opened in the criterion of switch number satisfaction, spare power supply high voltage side breaker time delay is closed, spare power supply low voltage side breaker has no blocking signal, then time delay is gradually closed in the criterion of switch number satisfaction, in situ self-healing reconfiguration action, bus spare power supply low voltage side breaker refuses to close, breaker time delay is gradually closed in the criterion of switch number satisfaction.The present application has the advantages that: when the self-healing action fails due to the failure of self-healing reconfiguration process, the bus will not stop power recovery, and the power supply range can be maximized, avoiding the power failure of non-fault phase bus, the present application does not need to add new equipment, and can be realized by upgrading the existing protection device.

The application discloses a kind of traction network impedance simulation system and control method based on voltage source converter, and main substation is simulated by three-phase transformer, and traction substation is simulated by single-phase transformer.Three-phase transformer steps down power supply voltage, and the voltage on the high-voltage side of the single-phase transformer of the traction substation group comes from the same two-phase voltage of the three-phase transformer, which supplies the traction network after stepping down the voltage. Among them, for the impedance simulation of the traction network, the movement of the train is equivalent to the change of the line impedance, and the VSC is used to simulate the impedance of the traction network. The VSC is used to realize the change of the impedance of the traction network on both sides of the train during the train operation. The VSC device is used to simulate the impedance of the traction network on both sides of the train during the train operation, and relevant researchers can use the invention to carry out experimental verification of the related theory of the new type of substation group bilateral traction power supply system, and promote the development of the new type of substation group bilateral traction power supply technology.

This utility model discloses a DC traction substation distribution cabinet device, including a cabinet body. A closed door is movably connected to one side surface of the cabinet body, and heat dissipation holes are provided on both sides of the cabinet body. A positioning top plate is fixedly connected to one side surface of the cabinet body, and a lifting adjustment component is provided at the lower end of the positioning top plate. This utility model changes the position of the connecting rod by moving the toggle block and squeezing the limit spring, thereby changing the engagement relationship between the cross-shaped locking block and the cross-shaped slot. This allows the connecting rod and related components to rotate independently without being rotated by the circular tube, enabling the protective plate to be opened and closed independently. Only the parts that need to be inspected or maintained are exposed, which can significantly reduce the opportunity for operators to come into contact with other unrelated parts inside the cabinet, simplify the operating environment, and thus reduce the risk of equipment failure or safety accidents caused by accidental contact.

The invention provides a method and system for improving the power supply capacity of an urban rail traction power supply system, and belongs to the technical field of urban rail transit traction power supply systems. The method comprises the following steps: acquiring traction station incoming line power, train speed, train power and train position information data of the urban rail traction power supply system; the collected data is preprocessed; establishing an urban rail traction power supply system simulation model; predicting the traction station peak power in a fixed time period from the current time period to the future time period; carrying out traction station peak power prediction parameter regulation and control; and generating a control instruction according to the optimal parameters, and regulating and controlling the converter device. By reducing the peak power of the incoming line of the traction station, the power supply capability is effectively improved; by coordinating and controlling the working parameters of the controllable converter device, the power distribution among multiple devices is dynamically balanced on the premise of ensuring the safe operation of the system, and finally the target of improving the overall power supply capability of the system is achieved.

The invention belongs to the technical field of electrified railway traction power supply, and particularly relates to a traction network multi-terminal longitudinal differential protection system and method in a bilateral through AT power supply mode. The system is provided with multi-terminal longitudinal differential protection elements according to uplink and downlink feeder lines, multi-terminal branches formed by traction substations, AT stations and partition stations are covered, and each branch is provided with a current transformer. The protection element comprises a power frequency variable quantity current differential element, a T line / F line current differential element and a low-voltage differential current starting element which are respectively adaptive to fault transient state and steady state characteristics, and rapid fault identification and accurate fault removal are realized through cooperative action. The method combines a current threshold criterion, a voltage criterion and an opposite-side permission signal, ensures the action quickness, selectivity, sensitivity and reliability, realizes quick removal of power supplies at two ends of a fault, reduces the fault isolation range, and ensures safe and stable operation of a traction network.

The application is applied to the fields of train regenerative braking energy utilization, stray current and track potential treatment in electrified rail transit, especially urban rail transit. The application provides a DC traction power supply system for reducing the super capacitor energy storage capacity of urban rail transit, which is combined with the super capacitor energy storage device of urban rail transit, and uses the train regenerative braking energy to supply power to the power electronic device for treating stray current and track potential. The application has the following advantages: on the one hand, the super capacitor group in the super capacitor energy storage device can reduce the energy storage capacity between train braking and traction, and improve the regenerative braking energy utilization efficiency of the super capacitor group; on the other hand, the problem of stray current and track potential in the system can be solved from the source, and the power supply distance of the traction substation can be significantly improved. Therefore, the DC traction power supply system has important significance for green and safe operation of urban rail transit.

The invention discloses a neutral section passing system and method suitable for bilateral power supply mode electric section and neutral section conversion. The system comprises a first traction substation, a second traction substation, a first power supply arm, a second power supply arm, a first electric section, a section post and a ground automatic neutral section passing device. The partition station is used for enabling the first electric section to be electrified by closing a circuit breaker in a bilateral power supply mode, and is used for converting the first electric section into a first electric split phase by opening the circuit breaker when the bilateral power supply mode is split into a unilateral power supply mode; and the ground automatic neutral section passing device is used for conducting the first electronic switch group before the train drives into the first electric neutral section to enable the first power supply arm to supply power to a contact network of the first electric neutral section, and turning off the first electronic switch group after the train passes through the first electric neutral section to enable the train to finish electrified neutral section passing. According to the method, the technical effect that the train passes through the electric segmentation / electric phase splitting in a non-perception automatic electrified mode in the bilateral / unilateral power supply mode conversion state is achieved.

The invention discloses an intelligent voltage monitoring and switching device and method for a traction substation, and relates to the technical field of railway traction power supply. Each section of bus of the traction substation is provided with a main voltage transformer and a standby voltage transformer, and each voltage transformer is provided with a voltage transformer fault monitoring module; each voltage transformer fault monitoring module comprises a voltage discrimination circuit, a voltage normal discrimination circuit, a non-voltage discrimination circuit, a low voltage value discrimination circuit, a high voltage difference discrimination circuit, a voltage transformer abnormity discrimination circuit and a voltage transformer normal discrimination circuit. And the voltage automatic switching device judges whether to switch the currently running voltage transformer according to the voltage transformer abnormal signal or the voltage transformer normal signal output by each voltage transformer fault monitoring module. Whether the voltage transformer is abnormal or not is comprehensively judged according to the normal mark of the voltage transformer, so that the fault of the used voltage transformer is determined, and the standby voltage transformer is automatically put into use.

The application discloses a hybrid regenerative braking energy absorption system and a control method thereof. The system has three different branches, namely a branch one feeding back to a 400V power distribution system, a branch two feeding back to a secondary side 1180V loop of a rectifier transformer and a branch three storing regenerative braking energy by using an energy storage unit. The regenerative braking energy is firstly supplied to a low-voltage power and lighting system through the branch one. If the braking energy is greater than the rated capacity of the branch one, the excess energy is fed back to a high-voltage AC power grid through the branch two and the rectifier transformer for a traction substation high-voltage. If the regenerative braking energy is greater than the capacity of the entire feedback part, resulting in continuous increase of the traction grid voltage, the excess energy is stored by the energy storage unit. Any branch in the system can be operated independently, and the required floor area is small, so that the system is convenient to access the already operated urban rail transit traction substation.

The invention relates to a traction power supply regenerative braking energy scheduling method and system. The method comprises the steps that real-time power information of any two adjacent traction substations is collected; real-time power information of any two adjacent traction substations is updated in real time, an energy scheduling reference value is obtained through calculation based on the real-time power information updated in real time, and an energy scheduling value is determined through the energy scheduling reference value; and completing energy bidirectional transfer scheduling between any two adjacent traction substations based on the energy scheduling value. According to the method, a high-reliability communication network and a data consistency algorithm are adopted, and it is guaranteed that the energy dispatching device of the subsection transfers the locomotive regenerative braking energy to the adjacent substation section to be used by a traction train under the condition that the locomotive regenerative braking energy cannot be utilized in the substation section.