Cooperative energy scheduling method and device

Abstract

The embodiment of the invention provides a collaborative energy scheduling method and device, and the method comprises the steps: obtaining the first load information of a first energy router in a railway station end, the second load information of a second energy router in a traction station end, and the third load information of a third energy router in a railway line end, the first line resistor is arranged between the large power grid end and the railway station end, the second line resistor is arranged between the railway station end and the traction station end, and the third line resistor is arranged between the traction station end and the railway line end. And calculating target scheduling data according to the first load information, the second load information, the third load information, the first line resistance, the second line resistance, the third line resistance and a preset cooperative scheduling calculation formula. According to the embodiment of the invention, the network loss can be greatly reduced, and the comprehensive utilization efficiency of grid connection of various energy sources in the railway network is improved.

Description

Technical Field

[0001] The embodiments of this specification relate to the technical field of energy management systems, and in particular to a collaborative energy scheduling method and device. Background Art

[0002] Driven by the "dual carbon" goal, building a "source-grid-train-station-storage" integrated energy supply system that integrates photovoltaic power generation, ground-source heat pumps, air-cooled heat pumps, charging facilities and energy storage technology is crucial for the railway industry to achieve low-carbon transformation. The system aims to improve the traction efficiency of railway trains and the energy utilization efficiency of non-traction loads at stations, and is one of the key strategies for the railway department to achieve the "dual carbon" goal.

[0003] However, the current system faces many challenges: the train traction load not only has a large power demand, but also fluctuates frequently; there are significant differences in time and space between the new energy supply and the traction load; in addition, photovoltaic power generation, charging facilities, heat pumps, air conditioning and other dispatchable resources are relatively independent in planning and operation control, and have failed to fully realize the synergy of diversified distributed resources. Due to the difficulty in controlling power balance, the existing integrated functional system has a low comprehensive utilization efficiency of multiple energy sources and large network losses. Summary of the invention

[0004] In view of this, the embodiments of this specification provide a collaborative energy scheduling method. One or more embodiments of this specification also involve a collaborative energy scheduling device, a computing device, a computer-readable storage medium and a computer program to solve the technical defects existing in the prior art.

[0005] According to a first aspect of an embodiment of this specification, a collaborative energy scheduling method is provided, the method is used to adjust the power balance between a large power grid end, a railway station end, a traction depot end and a railway line end in a railway network collaborative function system, the method comprising: Obtaining first load information of a first energy router in a railway station end, second load information of a second energy router in a traction station end, third load information of a third energy router in a railway line end, a first line resistance between a large power grid end and a railway station end, a second line resistance between a railway station end and a traction station end, and a third line resistance between a traction station end and a railway line end; According to the first load information, the second load information, the third load information, the first line resistance, the second line resistance, and the third line resistance, and a preset collaborative scheduling calculation formula, the target scheduling data is calculated, wherein the target scheduling data includes the first target energy storage consumption power at the railway station end, the second target energy storage consumption power at the traction depot end, and the third target energy storage consumption power at the railway line end, as well as the first target transmission power transmitted from the railway station end to the large power grid end, the second target transmission power input from the traction depot end to the railway station end, and the third target transmission power input from the railway line end to the traction depot end.

[0006] In some embodiments, the first load information includes a first port voltage of a port connected to a large power grid in the first energy router, a current phase difference between the first port voltage and the current, a second port voltage of a port connected to a traction station in the first energy router, a first AC / DC load consumption power, a first non-traditional output power and a first traction power grid consumption power at a railway station, a first initial energy storage consumption power at a railway station, and a first threshold interval corresponding to an energy storage port at a railway station; The second load information includes the third port voltage of the port connected to the station end in the second energy router, the fourth port voltage of the port connected to the railway end in the second energy router, the second AC and DC load consumption power, the second non-traditional output power and the second traction power grid consumption power at the traction station end, the second initial energy storage consumption power at the traction station end, and the second threshold interval corresponding to the energy storage port at the traction station end; The third load information includes the fifth port voltage of the port connected to the traction station end in the third energy router, the third non-traditional output power and the third traction grid consumption power of the railway line end, the third initial energy storage consumption power of the railway line end, and the third threshold interval corresponding to the energy storage port of the railway line end; Calculating target scheduling data according to the first load information, the second load information, the third load information, the first line resistance, the second line resistance, and the third line resistance, and a preset collaborative scheduling calculation formula, including: According to the first port voltage, the current phase difference, the second port voltage, the first AC / DC load power consumption, the first non-traditional output power, the first traction grid power consumption, the first initial energy storage consumption power, the first threshold interval, the third port voltage, the fourth port voltage, the second AC / DC load power consumption, the second non-traditional output power, the second traction grid power consumption, the second initial energy storage consumption power, the second threshold interval, the fifth port voltage, the third non-traditional output power, the third traction grid power consumption, the third initial energy storage consumption power and the third threshold interval, the first line resistance, the second line resistance and the third line resistance, and the preset collaborative scheduling calculation formula, the first target energy storage consumption power, the second target energy storage consumption power, the third target energy storage consumption power, the first target transmission power, the second target transmission power and the third target transmission power are calculated.

[0007] In some embodiments, the collaborative scheduling calculation formula includes:

[0008]

[0009]

[0010]

[0011] in, U 1 represents the voltage at the first port, U 2 represents the second port voltage, U 3 represents the third port voltage, U 4 represents the voltage of the fourth port, U 5 represents the fifth port voltage, represents the current phase difference, P PV1 represents the first non-conventional output power, P PV2 represents the second non-conventional output power, P PV3 represents the third non-conventional output power, P Tra1 represents the power consumption of the first traction grid, P Tra2 represents the power consumption of the second traction grid, P Tra3 represents the power consumption of the third traction grid, P load1 Indicates the power consumed by the first AC / DC load, P load2 Indicates the power consumed by the second AC / DC load, P bat1 represents the first target energy storage consumption power, Pbat2 represents the second target energy storage consumption power, P bat3 represents the third target energy storage consumption power, P 1 represents the first target transmission power, P 2 represents the second target transmission power, P 3 represents the third target transmission power, R 1 represents the first line resistance, R 2 represents the second line resistance, R 3 represents the third line resistance; When the first target energy storage consumes power P bat1 , Second target energy storage consumption power P bat2 And the third target energy storage consumption power P bat3 If they are respectively the same as the corresponding first initial energy storage consumption power, second initial energy storage consumption power and third initial energy storage consumption power, this calculation formula cannot be used and no scheduling is required.

[0012] In some embodiments, when the first / second / third initial energy storage consumption power is within the corresponding first / second / third threshold interval, the first initial energy storage consumption power, the second initial energy storage consumption power or the third initial energy storage consumption power is preferentially scheduled based on a preset priority order.

[0013] In some embodiments, when the number of the first / second / third initial energy storage consumption powers that are within the corresponding first / second / third threshold intervals is less than 3 and greater than 0, the first / second / third initial energy storage consumption powers that are not within the corresponding threshold intervals are determined as the corresponding first / second / third target energy storage consumption powers, and the first / second / third target energy storage consumption powers within the corresponding first / second / third threshold intervals are calculated in combination with the collaborative scheduling calculation formula, and the first / second / third target transmission powers are calculated.

[0014] In some embodiments, the step of determining the first / second / third initial energy storage consumption power that is not in the corresponding threshold interval as the corresponding first / second / third target energy storage consumption power includes: The first / second / third initial energy storage consumption power that is not in the corresponding threshold interval is determined as the upper / lower boundary threshold of the corresponding first / second / third threshold interval that is close to the first / second / third initial energy storage consumption power, to obtain the determined first / second / third target energy storage consumption power.

[0015] In some embodiments, the above method further comprises: When the first / second / third initial energy storage consumption power is not within the corresponding first / second / third threshold interval, no scheduling is performed.

[0016] According to a second aspect of an embodiment of this specification, a collaborative energy dispatching device is provided, the device is used to adjust the power balance between a large power grid end, a railway station end, a traction depot end and a railway line end in a railway network collaborative function system, and the device includes: An acquisition module is used to acquire first load information of a first energy router in a railway station end, second load information of a second energy router in a traction station end, third load information of a third energy router in a railway line end, a first line resistance between a large power grid end and a railway station end, a second line resistance between a railway station end and a traction station end, and a third line resistance between a traction station end and a railway line end; A calculation module is used to calculate target scheduling data based on first load information, second load information, third load information, first line resistance, second line resistance, and third line resistance, as well as a preset collaborative scheduling calculation formula, wherein the target scheduling data includes a first target energy storage consumption power at the railway station end, a second target energy storage consumption power at the traction depot end, and a third target energy storage consumption power at the railway line end, as well as a first target transmission power transmitted from the railway station end to the large power grid end, a second target transmission power input from the traction depot end to the railway station end, and a third target transmission power input from the railway line end to the traction depot end.

[0017] In some embodiments, the first load information includes a first port voltage of a port connected to a large power grid in the first energy router, a current phase difference between the first port voltage and the current, a second port voltage of a port connected to a traction station in the first energy router, a first AC / DC load consumption power, a first non-traditional output power and a first traction power grid consumption power at a railway station, a first initial energy storage consumption power at a railway station, and a first threshold interval corresponding to an energy storage port at a railway station; The second load information includes the third port voltage of the port connected to the station end in the second energy router, the fourth port voltage of the port connected to the railway end in the second energy router, the second AC and DC load consumption power, the second non-traditional output power and the second traction power grid consumption power at the traction station end, the second initial energy storage consumption power at the traction station end, and the second threshold interval corresponding to the energy storage port at the traction station end; The third load information includes the fifth port voltage of the port connected to the traction station end in the third energy router, the third non-traditional output power and the third traction grid consumption power of the railway line end, the third initial energy storage consumption power of the railway line end, and the third threshold interval corresponding to the energy storage port of the railway line end; Calculating target scheduling data according to the first load information, the second load information, the third load information, the first line resistance, the second line resistance, and the third line resistance, and a preset collaborative scheduling calculation formula, including: According to the first port voltage, the current phase difference, the second port voltage, the first AC / DC load power consumption, the first non-traditional output power, the first traction grid power consumption, the first initial energy storage consumption power, the first threshold interval, the third port voltage, the fourth port voltage, the second AC / DC load power consumption, the second non-traditional output power, the second traction grid power consumption, the second initial energy storage consumption power, the second threshold interval, the fifth port voltage, the third non-traditional output power, the third traction grid power consumption, the third initial energy storage consumption power and the third threshold interval, the first line resistance, the second line resistance and the third line resistance, and the preset collaborative scheduling calculation formula, the first target energy storage consumption power, the second target energy storage consumption power, the third target energy storage consumption power, the first target transmission power, the second target transmission power and the third target transmission power are calculated.

[0018] In some embodiments, the collaborative scheduling calculation formula includes:

[0019]

[0020]

[0021]

[0022] in, U 1 represents the voltage at the first port, U 2 represents the second port voltage, U 3 represents the third port voltage, U 4 represents the voltage of the fourth port, U 5 represents the fifth port voltage, represents the current phase difference, P PV1 represents the first non-conventional output power, P PV2 represents the second non-conventional output power, P PV3 represents the third non-conventional output power, P Tra1 represents the power consumption of the first traction grid, P Tra2 represents the power consumption of the second traction grid, P Tra3 represents the power consumption of the third traction grid, P load1 Indicates the power consumed by the first AC / DC load, Pload2 Indicates the power consumed by the second AC / DC load, P bat1 represents the first target energy storage consumption power, P bat2 represents the second target energy storage consumption power, P bat3 represents the third target energy storage consumption power, P 1 represents the first target transmission power, P 2 represents the second target transmission power, P 3 represents the third target transmission power, R 1 represents the first line resistance, R 2 represents the second line resistance, R 3 represents the third line resistance; When the first target energy storage consumes power P bat1 , Second target energy storage consumption power P bat2 And the third target energy storage consumption power P bat3 If they are respectively the same as the corresponding first initial energy storage consumption power, second initial energy storage consumption power and third initial energy storage consumption power, this calculation formula cannot be used and no scheduling is required.

[0023] In some embodiments, when the first / second / third initial energy storage consumption power is within the corresponding first / second / third threshold interval, the first initial energy storage consumption power, the second initial energy storage consumption power or the third initial energy storage consumption power is preferentially scheduled based on a preset priority order.

[0024] In some embodiments, when the number of the first / second / third initial energy storage consumption powers that are within the corresponding first / second / third threshold intervals is less than 3 and greater than 0, the first / second / third initial energy storage consumption powers that are not within the corresponding threshold intervals are determined as the corresponding first / second / third target energy storage consumption powers, and the first / second / third target energy storage consumption powers within the corresponding first / second / third threshold intervals are calculated in combination with the collaborative scheduling calculation formula, and the first / second / third target transmission powers are calculated.

[0025] In some embodiments, the step of determining the first / second / third initial energy storage consumption power that is not in the corresponding threshold interval as the corresponding first / second / third target energy storage consumption power includes: The first / second / third initial energy storage consumption power that is not in the corresponding threshold interval is determined as the upper / lower boundary threshold of the corresponding first / second / third threshold interval that is close to the first / second / third initial energy storage consumption power, to obtain the determined first / second / third target energy storage consumption power.

[0026] In some embodiments, the computing module is further configured to: When the first / second / third initial energy storage consumption power is not within the corresponding first / second / third threshold interval, no scheduling is performed.

[0027] According to a third aspect of an embodiment of this specification, a computing device is provided, including: Memory and processor; The memory is used to store computer executable instructions, and the processor is used to execute the computer executable instructions. When the computer executable instructions are executed by the processor, the steps of the above-mentioned collaborative energy scheduling method are implemented.

[0028] According to a fourth aspect of the embodiments of this specification, a computer-readable storage medium is provided, which stores computer-executable instructions, and when the instructions are executed by a processor, the steps of the above-mentioned collaborative energy scheduling method are implemented.

[0029] According to a fifth aspect of the embodiments of this specification, a computer program is provided, wherein when the computer program is executed in a computer, the computer is caused to execute the steps of the above-mentioned collaborative energy scheduling method.

[0030] At least one embodiment of the embodiments of this specification can greatly reduce network losses and improve the comprehensive utilization efficiency of multiple energy grid-connected in the railway network by obtaining first load information, second load information, third load information, first line resistance, second line resistance and third line resistance, and calculating target scheduling data in combination with a collaborative scheduling calculation formula. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a flow chart of some embodiments of a collaborative energy scheduling method provided by some embodiments of this specification; Figure 2a It is a simple structural diagram of some embodiments of a collaborative energy scheduling method provided by some embodiments of this specification; Figure 2b It is a simple topological diagram of some embodiments of a collaborative energy scheduling method provided by some embodiments of this specification; Figure 3 It is a simplified structural diagram of a collaborative energy scheduling device provided in some embodiments of this specification; Figure 4 It is a structural block diagram of a computing device provided in some embodiments of this specification. DETAILED DESCRIPTION

[0032] Many specific details are described in the following description to facilitate a full understanding of this specification. However, this specification can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of this specification, so this specification is not limited to the specific implementation disclosed below.

[0033] The terms used in one or more embodiments of this specification are for the purpose of describing specific embodiments only and are not intended to limit one or more embodiments of this specification. The singular forms of "one" and "the" used in one or more embodiments of this specification and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in one or more embodiments of this specification refers to and includes any or all possible combinations of one or more associated listed items. The modifications of "one" and "multiple" mentioned in this disclosure are illustrative and non-restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0034] It should be understood that although the terms first, second, etc. may be used to describe various information in one or more embodiments of this specification, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of this specification, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0035] First, the terms involved in one or more embodiments of this specification are explained.

[0036] Railway network collaborative function system: a comprehensive energy supply system of "source-grid-vehicle-station-storage" that integrates various new energy sources such as photovoltaic power generation, ground-source heat pumps, air-cooled heat pumps, charging facilities, large power grid facilities, vehicle traction network systems, traction stations and energy storage systems.

[0037] Driven by the "dual carbon" goal, building a "source-grid-train-station-storage" integrated energy supply system that integrates photovoltaic power generation, ground-source heat pumps, air-cooled heat pumps, charging facilities and energy storage technology is crucial for the railway industry to achieve low-carbon transformation. The system aims to improve the traction efficiency of railway trains and the energy utilization efficiency of non-traction loads at stations, and is one of the key strategies for the railway department to achieve the "dual carbon" goal.

[0038] However, the current system faces many challenges: the train traction load not only has a large power demand, but also fluctuates frequently; there are significant differences in time and space between the supply of new energy and the traction load; in addition, dispatchable resources such as photovoltaic power generation, charging facilities, heat pumps and air conditioning are relatively independent in planning and operation control, and the synergy of diversified distributed resources has not been fully realized.

[0039] In order to solve the above problems, one or more embodiments of this specification simultaneously relate to a collaborative energy scheduling device, a computing device, a computer-readable storage medium and a computer program to solve the technical defects existing in the prior art. The following is further introduced through various embodiments.

[0040] See also Figure 1 , Figure 1 A flowchart of a collaborative energy scheduling method provided according to some embodiments of this specification is shown, which specifically includes the following steps.

[0041] Step 101: Obtain the first load information of the first energy router in the railway station end, the second load information of the second energy router in the traction depot end, the third load information of the third energy router in the railway line end, the first line resistance between the large power grid end and the railway station end, the second line resistance between the railway station end and the traction depot end, and the third line resistance between the traction depot end and the railway line end.

[0042] In some embodiments, Figure 2a and 2b As shown, the execution subject of the collaborative energy scheduling method can be a higher-level control unit (not shown in the figure) at the station end, the traction depot end and the railway end. The execution subject can connect to the target device through a wired connection or a wireless connection, and then obtain the first load information of the first energy router in the railway station end, the second load information of the second energy router in the traction depot end, the third load information of the third energy router in the railway end, the first line resistance between the large power grid end and the railway station end, the second line resistance between the railway station end and the traction depot end, and the third line resistance between the traction depot end and the railway end. It should be pointed out that the above-mentioned wireless connection method may include but is not limited to 3G / 4G / 5G / 6G connection, WiFi connection, Bluetooth connection, WiMAX connection, Zigbee connection, UWB (ultra wideband) connection, and other wireless connection methods currently known or to be developed in the future.

[0043] The railway network coordination function system can have multiple units. For the sake of simplicity, the following units are used as follows: Figure 2bTake the simple topology diagram shown as an example: according to the flow direction of electric energy, the large power grid end, the station end, the traction end and the railway end are connected in sequence. The large power grid end may refer to the energy supplier that provides the main energy supply (when performing power regulation, it can receive some of the electric energy with the regulation function transmitted by the railway station end). The power of the large power grid end mainly comes from the electric energy of mature technology, such as traditional supply methods such as thermal power generation and hydropower generation. The railway station end may refer to a unit that is directly connected to the large power grid and exchanges power with the large power grid end through alternating current (mainly receiving the electric energy of the large power grid end). The traction end is connected to the railway station end to receive electric energy and transmit it to the railway end. The railway end may refer to the line between each station (there is a circuit in the line, which generates power loss). Further, in the embodiment of the present invention, when the power is adjusted for the station end, the traction end and the railway end, the power balance is adjusted mainly by the first / second / third energy router set in each end.

[0044] Continue to participate Figure 2a and 2b According to the system design requirements, the energy routers at the station end, traction end and railway end are constructed differently. Among them, the first energy router (station end) is equipped with a high-voltage port, a traction port, a photovoltaic port, an energy storage port, an AC load port, a DC load port and an interconnection port; the second energy router (traction end) is equipped with a traction port, a photovoltaic port, an energy storage port, an AC load port and an interconnection port; the third energy router (railway end) is equipped with a traction port, a photovoltaic port, an energy storage port and an interconnection port. The high-voltage port can refer to a port connected to the large power grid. The large power grid end and the railway station end transmit electric energy through this port.

[0045] The energy storage port is an important processing port in the embodiment of the present invention. When making power adjustments, first consider whether the energy storage unit has energy storage margin. When the energy storage unit has margin, local adjustment is given priority (that is, the station end, traction end or railway end adjusts itself). The energy storage port is generally connected to the distributed energy storage unit through a non-isolated DC / DC converter, which can realize two-way control of voltage level conversion and power flow. In the island operation mode, the energy storage port is used to stabilize the DC bus voltage, and multiple energy storage units can be connected to increase the overall energy storage capacity to stabilize the DC bus voltage. In the grid-connected mode, the power is regulated in conjunction with the grid-connected port. It can operate in two modes: boost mode: forward power transmission at this time. buck mode: reverse power transmission at this time. Based on the different transmission directions of the power flow in these two modes, the energy storage battery can be changed in charge and discharge state according to the overall operation conditions.

[0046] The AC / DC load port is generally an uncontrollable load port, which is a port for interconnecting loads with large randomness and volatility in transmission power, such as AC / DC loads of multi-port power routers. This article takes DC loads and AC loads as examples. The power flow of such ports is generally unidirectional and uncontrollable.

[0047] The photovoltaic port is only an example. The port can be replaced by other non-traditional energy sources such as geothermal energy ports or wind energy ports, etc., and there is no restriction here. The output characteristics of the photovoltaic components of the photovoltaic port are limited by environmental factors, especially the influence of light intensity and temperature. Under different light intensity and temperature conditions, the output characteristics of photovoltaic cells show a significant nonlinear relationship. The photovoltaic port converter uses a boost circuit to connect to the DC bus. The DC load port also uses a boost circuit, and the single-phase AC load port uses a single-phase inverter to connect to the load. In order to maximize the use of renewable energy power generation, the power of this type of port is often selected in the MPPT working mode, the power flows from the photovoltaic port to the DC bus, and the power is uncontrollable.

[0048] The interconnection port needs to meet the requirements of converting the form and voltage level of electric energy through a three-phase AC / DC converter, and has the ability to actively adjust its own transmission power to stabilize the DC bus voltage, and can realize bidirectional control of power flow. The interconnection port topology commonly uses PWM rectifiers, and this structure is selected as the interconnection port in this paper. For safety and insulation considerations, a DAB converter can be used to electrically isolate the power grid from the energy router. Its characteristics are that each part is interconnected through a high-voltage public DC bus and the control is relatively independent. Since the railway station power supply is an important primary load, the energy router generally works in the grid-connected mode as the main power source and backup guarantee for the multi-port power router.

[0049] The traction network plays the role of power supply in the traction power supply system, but it does not have the function of generating electricity. It needs to be connected to the local 220kV or 110kV regional substation with the help of high-voltage transmission lines, and then the voltage is reduced by the traction transformer, and then the electric energy is transmitted to the contact network above the railway rails through the feeder line. The electric locomotive (EMU) uses its on-board pantograph to obtain electric energy from the contact network, and then supplies the on-board AC motor. The entire circuit loop is closed through the rails, the earth and the return line to achieve the traction operation of the train. The traction power supply system of the existing electrified railway uses industrial frequency, single-phase AC, and the rated voltage of its contact network is 25kV. The traction network port topology uses a single-phase PWM rectifier, which can carry out bidirectional power flow. However, the traction network mainly corresponds to vehicle braking and starting and stopping, so it cannot be accurately predicted and over-power adjustment cannot be made in time. Therefore, in the embodiment of the present invention, the port is considered to be an unadjustable window.

[0050] Correspondingly, the first / second / third load information may refer to various parameters involved in the first / second / third energy router for calculating and balancing power. Since the ports of the first / second / third energy router are different, the first / second / third load information is also different.

[0051] In some optional implementations, such as Figure 1 As shown, the first load information includes the first port voltage of the port connected to the large power grid in the first energy router, the current phase difference between the first port voltage and the current, the second port voltage of the port connected to the traction station in the first energy router, the first AC / DC load consumption power, the first non-traditional output power and the first traction power grid consumption power at the railway station, the first initial energy storage consumption power at the railway station, and the first threshold interval corresponding to the energy storage port at the railway station. When performing AC / DC conversion, a phase difference between voltage and current will be generated, and this difference is the above-mentioned current phase difference.

[0052] The second load information includes the third port voltage of the port connected to the station end in the second energy router, the fourth port voltage of the port connected to the railway end in the second energy router, the second AC and DC load power consumption, the second non-traditional output power and the second traction power grid consumption at the traction station end, the second initial energy storage consumption power at the traction station end, and the second threshold interval corresponding to the energy storage port at the traction station end.

[0053] The third load information includes the fifth port voltage of the port connected to the traction end in the third energy router, the third non-traditional output power and the third traction power grid consumption power at the railway end, the third initial energy storage consumption power at the railway end, and the third threshold interval corresponding to the energy storage port at the railway end.

[0054] The energy storage unit corresponding to each energy storage port has a minimum power requirement for maintaining basic operation during operation, so the power passing through the energy storage port must not be less than the minimum power requirement, that is, the lower threshold of the first / second / third threshold interval. Each energy storage unit also has its energy storage upper limit. When the energy storage reaches the upper limit, the state of the energy storage port of the corresponding first / second / third energy router becomes unadjustable, and its power is set to the upper threshold of the corresponding first / second / third threshold interval.

[0055] Step 102, calculate the target scheduling data according to the first load information, the second load information, the third load information, the first line resistance, the second line resistance, and the third line resistance, and a preset collaborative scheduling calculation formula, wherein the target scheduling data includes the first target energy storage consumption power at the railway station end, the second target energy storage consumption power at the traction depot end, and the third target energy storage consumption power at the railway line end, as well as the first target transmission power transmitted from the railway station end to the large power grid end, the second target transmission power input from the traction depot end to the railway station end, and the third target transmission power input from the railway line end to the traction depot end.

[0056] In some optional implementations, the aforementioned execution entity can calculate the target scheduling data through the following steps: according to the first port voltage, the current phase difference, the second port voltage, the first AC / DC load power consumption, the first non-traditional output power, the first traction grid power consumption, the first initial energy storage consumption power, the first threshold interval, the third port voltage, the fourth port voltage, the second AC / DC load power consumption, the second non-traditional output power, the second traction grid power consumption, the second initial energy storage consumption power, the second threshold interval, the fifth port voltage, the third non-traditional output power, the third traction grid power consumption, the third initial energy storage consumption power and the third threshold interval, the first line resistance, the second line resistance and the third line resistance, and the preset collaborative scheduling calculation formula, calculate the first target energy storage consumption power, the second target energy storage consumption power and the third target energy storage consumption power, as well as the first target transmission power transmitted from the railway station end to the large power grid end, the second target transmission power input from the traction depot end to the railway station end and the third target transmission power input from the railway line end to the traction depot end.

[0057] The first / second / third target energy storage consumption power may refer to the adjusted consumption power corresponding to the energy storage port in the first / second / third energy router. It should be noted that before calculation, it is necessary to first determine whether the current first / second / third initial energy storage consumption power is in the corresponding first / second / third threshold interval. If it is outside the threshold interval, the first / second / third initial energy storage consumption power is the first / second / third target energy storage consumption power. If it is within the threshold interval, the first / second / third target energy storage consumption power needs to be calculated. The first / second / third target transmission power needs to be obtained by calculation.

[0058] In some optional implementations, when the first / second / third initial energy storage consumption power is within the corresponding first / second / third threshold interval, the first initial energy storage consumption power, the second initial energy storage consumption power or the third initial energy storage consumption power is preferentially scheduled based on the preset priority order. The preset priority order can set different priorities according to actual needs. As a specific example, the priority order is the first initial energy storage consumption power, the second initial energy storage consumption power and the third initial energy storage consumption power according to the size of the priority. That is, when all three are within the corresponding threshold interval, when facing the power gap (increase or decrease), the first initial energy storage consumption power is preferentially adjusted until the first initial energy storage consumption power reaches the upper threshold or lower threshold of the corresponding first threshold interval. Secondly, the second initial energy storage consumption power is adjusted until the second initial energy storage consumption power reaches the upper threshold or lower threshold of the corresponding second threshold interval. Finally, the third initial energy storage consumption power is adjusted. This adjustment method can set different priorities for different energy routers to meet different application requirements, which increases the practicality of the embodiment of the present invention.

[0059] In some optional implementations, when the number of the first / second / third initial energy storage consumption powers that are within the corresponding first / second / third threshold intervals is less than 3 and greater than 0, the first / second / third initial energy storage consumption powers that are not within the corresponding threshold intervals are determined as the corresponding first / second / third target energy storage consumption powers, and the first / second / third target energy storage consumption powers within the corresponding first / second / third threshold intervals are calculated in combination with the collaborative scheduling calculation formula, and the first / second / third target transmission powers are calculated.

[0060] In some optional implementations, the step of determining the first / second / third initial energy storage consumption power that is not in the corresponding threshold interval as the corresponding first / second / third target energy storage consumption power includes: determining the first / second / third initial energy storage consumption power that is not in the corresponding threshold interval as the upper / lower boundary threshold of the corresponding first / second / third threshold interval that is close to the first / second / third initial energy storage consumption power, and obtaining the determined first / second / third target energy storage consumption power.

[0061] In some optional implementations, when the first / second / third initial energy storage consumption power is not within the corresponding first / second / third threshold interval, no scheduling is performed. Obviously, when the first / second / third initial energy storage consumption power is not within the corresponding first / second / third threshold interval, scheduling cannot be performed. At this time, the railway network presents the characteristics of a radiation network, and the line transmission power cannot be adjusted.

[0062] At least one embodiment of the embodiments of this specification can greatly reduce network losses and improve the comprehensive utilization efficiency of multiple energy grid-connected in the railway network by obtaining first load information, second load information, third load information, first line resistance, second line resistance and third line resistance, and calculating target scheduling data in combination with a collaborative scheduling calculation formula.

[0063] In some optional implementations, the collaborative scheduling calculation formula includes: (1) (2) (3) (4) in, U 1 represents the voltage at the first port, U 2 represents the second port voltage, U 3 represents the third port voltage, U 4 represents the voltage of the fourth port, U 5 represents the fifth port voltage, represents the current phase difference, P PV1 represents the first non-conventional output power, P PV2 represents the second non-conventional output power, P PV3 represents the third non-conventional output power, P Tra1 represents the power consumption of the first traction grid, P Tra2 represents the power consumption of the second traction grid, P Tra3 represents the power consumption of the third traction grid, P load1 Indicates the power consumed by the first AC / DC load, P load2 Indicates the power consumed by the second AC / DC load, P bat1 represents the first target energy storage consumption power, P bat2 represents the second target energy storage consumption power, P bat3 represents the third target energy storage consumption power, P 1 represents the first target transmission power, P 2 represents the second target transmission power, P 3 represents the third target transmission power, R1 represents the first line resistance, R2 represents the second line resistance, and R3 represents the third line resistance; When the first target energy storage consumes power Pbat1 , Second target energy storage consumption power P bat2 And the third target energy storage consumption power P bat3 If they are respectively the same as the corresponding first initial energy storage consumption power, second initial energy storage consumption power and third initial energy storage consumption power, this calculation formula cannot be used and no scheduling is required.

[0064] The derivation steps of sub-calculation formula (1) are as follows: The first step is to construct the network loss calculation formula for each line, as shown below:

[0065] in, represents the network loss power of the first line between the large power grid and the railway station, Indicates the network loss power of the second line between the railway station end and the traction depot end, Represents the network loss power of the third line between the traction depot end and the railway line end.

[0066] The second step is to , and Ask about P 1. P 2 and P The partial derivative of 3 gives the following formula:

[0067] The third step is to make the three equal, and we can get the sub-calculation formula (4):

[0068] In addition, it should be pointed out that among the sub-calculations (1) to (4), sub-calculations (1) can be equivalent to two calculations. Therefore, it can be seen that the collaborative scheduling calculation includes 6 variables: P 1. P 2. P 3. P bat1 , P bat2 and P bat3, and 5 calculation formulas (the first sub-calculation formula is equivalent to 2 calculation formulas), namely the first target transmission power, the second target transmission power, the third target transmission power, the first target energy storage consumption power, the second target energy storage consumption power and the third target energy storage consumption power. Among them, the first target energy storage consumption power, the second target energy storage consumption power and the third target energy storage consumption power can be determined by the corresponding first initial energy storage consumption power, the second initial energy storage consumption power and the third initial energy storage consumption power according to the aforementioned determination method.

[0069] The above embodiment is further described below through a specific embodiment: (1) When the energy storage regulation capacity of the three nodes (railway station end, traction depot end and railway line end) reaches the upper limit: like Figure 2b As shown, for the external power balance of the energy router, if the energy storage regulation capacity of the three ends reaches the upper limit, the network will show the characteristics of a radiation network, and the line transmission power cannot be adjusted. The energy router at the railway station end is balanced by the power grid, and the power of the interconnected line is determined by the power shortage or balance of the next-level energy router. At this time, you can calculate without referring to the aforementioned collaborative scheduling calculation formula (because no complex calculation is required), or you can use the aforementioned collaborative scheduling calculation formula to obtain the result (the calculation result is the same).

[0070] If the energy storage regulation capacity of one or two nodes reaches the upper limit, the line power transmission needs to analyze the energy routers of different nodes separately.

[0071] (2) When the energy storage regulation of two nodes reaches the upper limit: When the energy storage regulation of the energy routers at the traction station and along the railway reaches the upper limit, the network presents the characteristics of a radiation network, and the line transmission power cannot be adjusted. The energy router at the railway station participates in balancing the power of the energy router at the same level, and the power of the interconnected line is determined by the power shortage or balance of the energy router at the next level. The output power of the interconnected port at the railway station can be obtained by the aforementioned collaborative scheduling calculation formula.

[0072] When the energy storage regulation capacity of the energy routers at the railway station end and the railway line end reaches the upper limit, the power output by the energy router at the railway line end to the upper-level energy router is determined, and the upper-level port (interconnection port) becomes an uncontrollable port; the lower-level port of the energy router at the traction station end becomes an uncontrollable bidirectional port, and the power balance of the energy router at this level is mainly regulated by the energy storage at this level, and the power of the upper-level interconnection port is obtained by the aforementioned collaborative scheduling calculation formula; the energy router at the railway station end adjusts the power by two controllable bidirectional power ports, the power grid and the lower-level interconnection port, and the power is all obtained by the aforementioned collaborative scheduling calculation formula.

[0073] When the energy storage regulation of the energy routers at the railway station and traction depot ends reaches the limit, the energy routers at the end nodes along the railway line use energy storage to balance power, and the power of the upper-level port is calculated by the aforementioned collaborative scheduling formula; the energy router at the traction depot end relies on the upper and lower interconnected ports to maintain power balance, and the size is calculated by the aforementioned collaborative scheduling formula; the energy router at the railway station end relies on the power grid and the lower-level port to maintain power, and the power size is also calculated by the aforementioned collaborative scheduling formula.

[0074] (3) When the energy storage regulation of a node reaches the upper limit: For node energy routers at the end of the radiation network such as the end along the railway line, there are only two controllable bidirectional power ports, namely the energy storage and the upper interconnection port. Therefore, when the energy storage reaches the limit, the interconnection port is directly used to assist in power balance. At this time, the power of the terminal node flows to the intermediate traction station end node. The input power of the lower interconnection port in the traction station end node energy router is determined by the remaining or insufficient power at the end. The lower interconnection port changes from a controllable bidirectional power port to an uncontrollable one. The controllable bidirectional power port at the traction station end is reduced to two ports, the upper interconnection port and the energy storage port. It is equivalent to becoming the end node of the original network. The output power of the upper and lower interconnection ports at the railway station end and the traction station end can be obtained by the aforementioned collaborative scheduling calculation formula.

[0075] For energy routers located at the intermediate nodes of the radiation network, such as the traction station end, there are three controllable bidirectional power ports: energy storage and upper and lower level interconnection ports. Therefore, when the energy storage reaches the limit, the upper and lower level interconnection ports can participate in the auxiliary power balance at the same time. At this time, the output power of the upper and lower level interconnection ports is obtained by the aforementioned collaborative scheduling calculation formula.

[0076] For nodes such as railway stations located at the junction of the power grid and the DC network, there are three controllable bidirectional power ports: energy storage, grid connection and lower-level interconnection. Therefore, when the energy storage reaches the limit, the grid-connected port and the lower-level interconnection port cooperate to participate in the power balance of the energy router at this level. At this time, the grid-connected power and the output power of the interconnection port are obtained by the aforementioned collaborative scheduling calculation formula.

[0077] (4) When the energy storage regulation of the three nodes has not reached the upper limit: At this time, the energy storage of the three nodes has adjustment margin, which can balance the energy inside the energy router at this level without the need to use the aforementioned collaborative scheduling calculation formula. At this time, the network loss is 0.

[0078] The above formula is derived based on the network loss slight increase rate (intermediate variable, this data does not need to be calculated during calculation, it is only used here to illustrate its derivation principle) and the power balance of each line. According to this calculation formula, the target scheduling data can be accurately calculated, so that the power balance of the grid-connected power grid can be performed very easily.

[0079] Corresponding to the above method embodiment, this specification also provides a collaborative energy scheduling device embodiment, Figure 3 FIG. 1 shows a schematic diagram of a structure of a collaborative energy scheduling device provided in some embodiments of this specification. Figure 3 As shown, the device comprises: The acquisition module 301 is used to obtain the first load information of the first energy router in the railway station end, the second load information of the second energy router in the traction depot end, the third load information of the third energy router in the railway line end, the first line resistance between the large power grid end and the railway station end, the second line resistance between the railway station end and the traction depot end, and the third line resistance between the traction depot end and the railway line end.

[0080] The calculation module 302 is used to calculate the target scheduling data according to the first load information, the second load information, the third load information, the first line resistance, the second line resistance, and the third line resistance, and a preset collaborative scheduling calculation formula, wherein the target scheduling data includes the first target energy storage consumption power at the railway station end, the second target energy storage consumption power at the traction depot end, and the third target energy storage consumption power at the railway line end, as well as the first target transmission power transmitted from the railway station end to the large power grid end, the second target transmission power input from the traction depot end to the railway station end, and the third target transmission power input from the railway line end to the traction depot end.

[0081] In some embodiments, the first load information includes the first port voltage of the port connected to the large power grid in the first energy router, the current phase difference between the first port voltage and the current, the second port voltage of the port connected to the traction station in the first energy router, the first AC / DC load consumption power, the first non-traditional output power and the first traction power grid consumption power at the railway station, the first initial energy storage consumption power at the railway station, and the first threshold interval corresponding to the energy storage port at the railway station; the second load information includes the third port voltage of the port connected to the station in the second energy router, the fourth port voltage of the port connected to the railway line in the second energy router, the second AC / DC load consumption power, the second non-traditional output power and the second traction power grid consumption power at the traction station, the second initial energy storage consumption power at the traction station, and the second threshold interval corresponding to the energy storage port at the traction station; the third load information includes the fifth port voltage of the port connected to the traction station in the third energy router, the third non-traditional output power and the third traction power grid consumption power at the railway line, the third initial energy storage consumption power at the railway line, and a third threshold interval corresponding to the energy storage port at the end of the railway line; according to the first load information, the second load information, the third load information, the first line resistance, the second line resistance, and the third line resistance, and a preset collaborative scheduling calculation formula, calculate the target scheduling data, including: according to the first port voltage, the current phase difference, the second port voltage, the first AC and DC load power consumption, the first non-traditional output power, the first traction power grid consumption, the first initial energy storage consumption power, the first threshold interval, the third port voltage, the fourth port voltage, the second AC and DC load power consumption, the second non-traditional output power, the second traction power grid consumption, the second initial energy storage consumption power, the second threshold interval, the fifth port voltage, the third non-traditional output power, the third traction power grid consumption, the third initial energy storage consumption power and the third threshold interval, the first line resistance, the second line resistance and the third line resistance, and a preset collaborative scheduling calculation formula, calculate the first target energy storage consumption power, the second target energy storage consumption power, the third target energy storage consumption power, the first target transmission power, the second target transmission power and the third target transmission power.

[0082] In some embodiments, the collaborative scheduling calculation formula includes:

[0083]

[0084]

[0085]

[0086] in, U 1 represents the voltage at the first port, U2 represents the second port voltage, U 3 represents the third port voltage, U 4 represents the voltage of the fourth port, U 5 represents the fifth port voltage, represents the current phase difference, P PV1 represents the first non-conventional output power, P PV2 represents the second non-conventional output power, P PV3 represents the third non-conventional output power, P Tra1 represents the power consumption of the first traction grid, P Tra2 represents the power consumption of the second traction grid, P Tra3 represents the power consumption of the third traction grid, P load1 Indicates the power consumed by the first AC / DC load, P load2 Indicates the power consumed by the second AC / DC load, P bat1 represents the first target energy storage consumption power, P bat2 represents the second target energy storage consumption power, P bat3 represents the third target energy storage consumption power, P 1 represents the first target transmission power, P 2 represents the second target transmission power, P 3 represents the third target transmission power, R 1 represents the first line resistance, R 2 represents the second line resistance, R 3 represents the third line resistance; When the first target energy storage consumes power P bat1 , Second target energy storage consumption power P bat2 And the third target energy storage consumption power P bat3 If they are respectively the same as the corresponding first initial energy storage consumption power, second initial energy storage consumption power and third initial energy storage consumption power, this calculation formula cannot be used and no scheduling is required.

[0087] In some embodiments, when the first / second / third initial energy storage consumption power is within the corresponding first / second / third threshold interval, the first initial energy storage consumption power, the second initial energy storage consumption power or the third initial energy storage consumption power is preferentially scheduled based on a preset priority order.

[0088] In some embodiments, when the number of the first / second / third initial energy storage consumption powers that are within the corresponding first / second / third threshold intervals is less than 3 and greater than 0, the first / second / third initial energy storage consumption powers that are not within the corresponding threshold intervals are determined as the corresponding first / second / third target energy storage consumption powers, and the first / second / third target energy storage consumption powers within the corresponding first / second / third threshold intervals are calculated in combination with the collaborative scheduling calculation formula, and the first / second / third target transmission powers are calculated.

[0089] In some embodiments, the step of determining the first / second / third initial energy storage consumption power that is not in the corresponding threshold interval as the corresponding first / second / third target energy storage consumption power includes: The first / second / third initial energy storage consumption power that is not in the corresponding threshold interval is determined as the upper / lower boundary threshold of the corresponding first / second / third threshold interval that is close to the first / second / third initial energy storage consumption power, to obtain the determined first / second / third target energy storage consumption power.

[0090] The above is a schematic scheme of a collaborative energy scheduling device of this embodiment. It should be noted that the technical scheme of the collaborative energy scheduling device and the technical scheme of the collaborative energy scheduling method described above belong to the same concept, and the details not described in detail in the technical scheme of the collaborative energy scheduling device can be found in the description of the technical scheme of the collaborative energy scheduling method described above.

[0091] Figure 4 The structure block diagram of a computing device 400 provided according to some embodiments of the present specification is shown. The components of the computing device 400 include but are not limited to a memory 410 and a processor 420. The processor 420 is connected to the memory 410 via a bus 430, and the database 450 is used to store data.

[0092] The computing device 400 also includes an access device 440 that enables the computing device 400 to communicate via one or more networks 460. Examples of these networks include a public switched telephone network (PSTN), a local area network (LAN), a wide area network (WAN), a personal area network (PAN), or a combination of communication networks such as the Internet. The access device 440 may include one or more of any type of network interface (e.g., a network interface card (NIC)) that is wired or wireless, such as an IEEE 802.11 wireless local area network (WLAN) wireless interface, a world-wide interoperability for microwave access (Wi-MAX) interface, an Ethernet interface, a universal serial bus (USB) interface, a cellular network interface, a Bluetooth interface, and a near field communication (NFC).

[0093] In one embodiment of the present specification, the above components of the computing device 400 and Figure 4 Other components not shown in the figure may also be connected to each other, for example, via a bus. It should be understood that Figure 4 The computing device structure block diagram shown is only for the purpose of illustration, and is not intended to limit the scope of this specification. Those skilled in the art can add or replace other components as needed.

[0094] The computing device 400 may be any type of stationary or mobile computing device, including a mobile computer or mobile computing device (e.g., a tablet computer, a personal digital assistant, a laptop computer, a notebook computer, a netbook, etc.), a mobile phone (e.g., a smart phone), a wearable computing device (e.g., a smart watch, smart glasses, etc.), or other types of mobile devices, or a stationary computing device such as a desktop computer or a personal computer (PC). The computing device 400 may also be a mobile or stationary server.

[0095] Among them, the processor 420 is used to execute the following computer executable instructions, which implement the steps of the above-mentioned collaborative energy scheduling method when executed by the processor. The above is a schematic scheme of a computing device of this embodiment. It should be noted that the technical solution of the computing device and the technical solution of the above-mentioned collaborative energy scheduling method belong to the same concept. The details of the technical solution of the computing device that are not described in detail can be found in the description of the technical solution of the above-mentioned collaborative energy scheduling method.

[0096] An embodiment of the present specification also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the steps of the above-mentioned collaborative energy scheduling method.

[0097] The above is a schematic scheme of a computer-readable storage medium of this embodiment. It should be noted that the technical scheme of the storage medium and the technical scheme of the above-mentioned collaborative energy scheduling method belong to the same concept, and the details not described in detail in the technical scheme of the storage medium can be referred to the description of the technical scheme of the above-mentioned collaborative energy scheduling method.

[0098] An embodiment of the present specification also provides a computer program, wherein when the computer program is executed in a computer, the computer is caused to execute the steps of the above-mentioned collaborative energy scheduling method.

[0099] The above is a schematic scheme of a computer program of this embodiment. It should be noted that the technical scheme of the computer program and the technical scheme of the above-mentioned collaborative energy scheduling method belong to the same concept, and the details not described in detail in the technical scheme of the computer program can be referred to the description of the technical scheme of the above-mentioned collaborative energy scheduling method.

[0100] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0101] Computer instructions include computer program codes, which may be in source code form, object code form, executable files or some intermediate form, etc. Computer readable media may include: any entity or device capable of carrying computer program codes, recording media, USB flash drives, mobile hard disks, magnetic disks, optical disks, computer memories, read-only memories (ROM), random access memories (RAM), electric carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the contents of computer readable media may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer readable media do not include electric carrier signals and telecommunication signals.

[0102] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity of description, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the embodiments of this specification are not limited by the order of the actions described, because according to the embodiments of this specification, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the embodiments of this specification.

[0103] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0104] The preferred embodiments of this specification disclosed above are only used to help explain this specification. The optional embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of the embodiments of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the embodiments of this specification, so that those skilled in the art can understand and use this specification well. This specification is limited only by the claims and their full scope and equivalents.

Claims

1. A collaborative energy scheduling method, characterized in that: The method is used to adjust the power balance between the large power grid end, the railway station end, the traction depot end and the railway line end in the railway network cooperative function system, and the method comprises: Obtaining first load information of a first energy router in a railway station end, second load information of a second energy router in a traction station end, third load information of a third energy router in a railway line end, a first line resistance between a large power grid end and a railway station end, a second line resistance between a railway station end and a traction station end, and a third line resistance between a traction station end and a railway line end; According to the first load information, the second load information, the third load information, the first line resistance, the second line resistance, and the third line resistance, and a preset collaborative scheduling calculation formula, the target scheduling data is calculated, wherein the target scheduling data includes the first target energy storage consumption power at the railway station end, the second target energy storage consumption power at the traction depot end, and the third target energy storage consumption power at the railway line end, as well as the first target transmission power transmitted from the railway station end to the large power grid end, the second target transmission power input from the traction depot end to the railway station end, and the third target transmission power input from the railway line end to the traction depot end.

2. The method according to claim 1, characterized in that The first load information includes a first port voltage of a port connected to a large power grid in the first energy router, a current phase difference between the first port voltage and the current, a second port voltage of a port connected to a traction station in the first energy router, a first AC / DC load consumption power, a first non-traditional output power and a first traction power grid consumption power at a railway station, a first initial energy storage consumption power at a railway station, and a first threshold interval corresponding to an energy storage port at a railway station; The second load information includes a third port voltage of a port connected to the station end in the second energy router, a fourth port voltage of a port connected to the railway end in the second energy router, a second AC / DC load consumption power, a second non-traditional output power and a second traction grid consumption power at the traction station end, a second initial energy storage consumption power at the traction station end, and a second threshold interval corresponding to the energy storage port at the traction station end; The third load information includes the fifth port voltage of the port connected to the traction station end in the third energy router, the third non-traditional output power and the third traction grid consumption power of the railway line end, the third initial energy storage consumption power of the railway line end, and the third threshold interval corresponding to the energy storage port of the railway line end; The calculating target scheduling data according to the first load information, the second load information, the third load information, the first line resistance, the second line resistance, and the third line resistance, and a preset collaborative scheduling calculation formula includes: According to the first port voltage, the current phase difference, the second port voltage, the first AC / DC load power consumption, the first non-traditional output power, the first traction grid power consumption, the first initial energy storage consumption power, the first threshold interval, the third port voltage, the fourth port voltage, the second AC / DC load power consumption, the second non-traditional output power, the second traction grid power consumption, the second initial energy storage consumption power, the second threshold interval, the fifth port voltage, the third non-traditional output power, the third traction grid power consumption, the third initial energy storage consumption power and the third threshold interval, the first line resistance, the second line resistance and the third line resistance, and the preset collaborative scheduling calculation formula, calculate the first target energy storage consumption power, the second target energy storage consumption power, the third target energy storage consumption power, the first target transmission power, the second target transmission power and the third target transmission power.

3. The method according to claim 2, characterized in that The collaborative scheduling calculation formula includes: in, U 1 represents the first port voltage, U 2 represents the second port voltage, U 3 represents the third port voltage, U 4 represents the fourth port voltage, U 5 represents the fifth port voltage, represents the current phase difference, P PV1 represents the first non-conventional output power, P PV2 represents the second non-conventional output power, P PV3 represents the third non-conventional output power, P Tra1 represents the power consumed by the first traction grid, P Tra2 represents the power consumption of the second traction grid, P Tra3 represents the power consumption of the third traction grid, P load1 represents the power consumed by the first AC / DC load, P load2 represents the power consumed by the second AC / DC load, P bat1 represents the first target energy storage consumption power, P bat2 represents the second target energy storage consumption power, P bat3 represents the third target energy storage consumption power, P 1 represents the first target transmission power, P 2 represents the second target transmission power, P 3 represents the third target transmission power, R 1 represents the first line resistance, R 2 represents the second line resistance, R 3 represents the third line resistance; When the first target energy storage consumes power P bat1 , Second target energy storage consumption power P bat2 And the third target energy storage consumption power P bat3 If they are respectively the same as the corresponding first initial energy storage consumption power, second initial energy storage consumption power and third initial energy storage consumption power, this calculation formula cannot be used and no scheduling is required.

4. The method according to claim 3, characterized in that When the first / second / third initial energy storage consumption power is within the corresponding first / second / third threshold interval, the first initial energy storage consumption power, the second initial energy storage consumption power or the third initial energy storage consumption power is preferentially scheduled based on a preset priority order.

5. The method according to claim 3, characterized in that: When the number of the first / second / third initial energy storage consumption powers that are within the corresponding first / second / third threshold intervals is less than 3 and greater than 0, the first / second / third initial energy storage consumption powers that are not within the corresponding threshold intervals are determined as the corresponding first / second / third target energy storage consumption powers, and the first / second / third target energy storage consumption powers within the corresponding first / second / third threshold intervals are calculated in combination with the collaborative scheduling calculation formula, and the first / second / third target transmission powers are calculated.

6. The method according to claim 5, characterized in that The step of determining the first / second / third initial energy storage consumption power that is not in the corresponding threshold interval as the corresponding first / second / third target energy storage consumption power comprises: The first / second / third initial energy storage consumption power that is not in the corresponding threshold interval is determined as the upper / lower boundary threshold of the corresponding first / second / third threshold interval that is close to the first / second / third initial energy storage consumption power to obtain the determined first / second / third target energy storage consumption power.

7. The method according to claim 3, characterized in that Also includes: When the first / second / third initial energy storage consumption power is not within the corresponding first / second / third threshold interval, no scheduling is performed.

8. A collaborative energy scheduling device, characterized in that: The device is used to adjust the power balance between the large power grid end, the railway station end, the traction end and the railway line end in the railway network cooperative function system, and the device includes: An acquisition module is used to acquire first load information of a first energy router in a railway station end, second load information of a second energy router in a traction station end, third load information of a third energy router in a railway line end, a first line resistance between a large power grid end and a railway station end, a second line resistance between a railway station end and a traction station end, and a third line resistance between a traction station end and a railway line end; A calculation module is used to calculate target scheduling data based on the first load information, the second load information, the third load information, the first line resistance, the second line resistance, and the third line resistance, as well as a preset collaborative scheduling calculation formula, wherein the target scheduling data includes a first target energy storage consumption power at the railway station end, a second target energy storage consumption power at the traction depot end, and a third target energy storage consumption power at the railway line end, as well as a first target transmission power transmitted from the railway station end to the large power grid end, a second target transmission power input from the traction depot end to the railway station end, and a third target transmission power input from the railway line end to the traction depot end.

9. A collaborative energy scheduling system, characterized in that: It includes a master control end, a large power grid end, a railway station end, a traction end and a railway end, wherein the railway station end, the traction end and the railway end are respectively provided with a first energy router, a second energy router and a third energy router, wherein: The master control end is connected to the large power grid end, the first energy router, the second energy router and the third energy router respectively, and the master control end is provided with a memory and a processor; the memory is used to store computer executable instructions, and the processor is used to execute the computer executable instructions, and when the computer executable instructions are executed by the processor, the steps of the collaborative energy scheduling method according to any one of claims 1 to 7 are implemented; The large power grid end is connected to the AC grid-connected port of the first energy router, and the large power grid end is used to perform bidirectional AC power transmission with the railway station end through the AC grid-connected port; The first energy router is provided with an energy storage DC port, a distributed non-traditional port, an AC grid-connected port, a traction grid port, an interconnection port, an AC load port and a DC load port; the energy storage DC port is used for energy storage; the distributed non-traditional port is used for receiving non-traditional electric energy; the traction grid port is used for supplying power to the traction grid; the interconnection port is connected to the first interconnection port of the second energy router, and the interconnection port is used for bidirectional energy flow with the second energy router; the AC / DC load port is used for supplying power to other AC / DC loads; The second energy router is provided with an energy storage DC port, a distributed non-traditional port, a traction network port, a first interconnection port, a second interconnection port and a DC load port; the second interconnection port is connected to the interconnection port of the third energy router, and the second interconnection port is used for bidirectional energy flow with the third energy router; The third energy router is provided with an energy storage DC port, a distributed non-traditional port, a traction network port and an interconnection port.

10. A computer-readable storage medium storing computer-executable instructions, characterized in that: When the computer executable instructions are executed by a processor, the steps of the collaborative energy scheduling method described in any one of claims 1 to 7 are implemented.

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