Rail transit power operation load sharing power distribution system method and system

Abstract

The invention discloses a method and system for sharing a power distribution system by rail transit power operation loads, and the method comprises the steps: obtaining the power supply information of a shared power distribution system of a current urban rail transit station and the power utilization information of each rail transit line, the power supply information comprises the total power demand at the time t, the power output of the shared power distribution system at the time t, and the target power output of the shared power distribution system at the time t; the power utilization information comprises a target power demand of the rail transit line at the time t, a power demand of the rail transit line at a moment before the time t, impedance of the rail transit line and a power distribution proportion of the rail transit line in the shared power distribution system at the time t; and setting a rail transit line power dispatching model, simulating the rail transit power consumption condition according to the power supply information and the power consumption information, and dynamically adjusting the rail transit power according to the real-time simulation condition.

Description

Technical Field

[0001] The present invention belongs to the technical field of rail transit power dispatching, and more specifically, relates to a method and system for a rail transit power operation load sharing distribution system. Background Art

[0002] At present, service equipment (including advertising, vending, etc.) and interval maintenance equipment in urban rail transit stations are equipped with distribution boxes respectively, and a radial distribution scheme is adopted from the station substation, which results in a large number of cables, high construction investment, and great construction difficulty. Distribution cables with different types of loads are energized at different times, and the cable energization time is short, which also shortens the cable trial life.

[0003] In addition, there is no technical solution in the prior art that can efficiently distribute electricity to multiple rail transit lines. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes a method for sharing a power distribution system for rail transit power operation loads, comprising:

[0005] Obtaining power supply information of the shared power distribution system of the current urban rail transit station and power consumption information of each rail transit line, wherein the power supply information includes: total power demand at time t, power output of the shared power distribution system at time t, target power output of the shared power distribution system at time t, and power output of the shared power distribution system at a moment before time t; the power consumption information includes: target power demand of the rail transit line at time t, power demand of the rail transit line at time t, power demand of the rail transit line at a moment before time t, impedance of the rail transit line, and power allocation ratio of the rail transit line in the shared power distribution system at time t;

[0006] A rail transit line power dispatching model is set up, and the rail transit power consumption is simulated according to the power supply information and the power consumption information, and the rail transit power is dynamically adjusted according to the real-time simulation situation.

[0007] Furthermore, the rail transit line power dispatching model includes:

[0008]

[0009] Among them, k 1 is the first adjustment factor, P total (t) is the total power demand at time t, P shared (t) is the power output of the shared distribution system at time t, k 2 is the second adjustment factor, is the target power output of the shared distribution system at time t, k 3 is the third adjustment factor, is the power output of the shared distribution system at a moment before time t, α i is the first adjustment factor of the ith rail transit line, P i target (t) is the target power demand of the ith rail transit line at time t, P i (t) is the power demand of the ith rail transit line at time t, β i is the second adjustment factor of the ith rail transit line, P i prev (t) is the power demand of the ith rail transit line at a moment before time t, γ i is the third adjustment factor of the ith rail transit line, Z i is the impedance of the ith rail transit line, δ i is the fourth adjustment factor of the ith rail transit line, n is the number of rail transit lines, f i (t) is the power allocation ratio of the i-th rail transit line in the shared distribution system at time t.

[0010] Furthermore, it also includes setting up a power dispatching model for power consuming equipment to perform power dispatching on the power consuming equipment in the current urban rail transit station.

[0011] Furthermore, the power dispatching model package of the power-consuming equipment:

[0012]

[0013] Where m is the number of electrical equipment, Q l is the power demand of the lth electrical equipment in the current urban rail transit station, f l ′ is the power distribution ratio of the lth power-consuming equipment in the current urban rail transit station, Q shared is the power output of the current urban rail transit station, λ 1 is the first weight, δt l is the time variation of the power demand of the lth electrical equipment, λ 2 is the second weight, λ 3 is the third weight, λ 4 The fourth weight.

[0014] Furthermore, the rail transit line power dispatching model is solved by a numerical solution method, and the numerical solution method includes the Euler method or the fourth-order Runge-Kutta method.

[0015] The present invention also proposes a system for sharing a power distribution system for rail transit power operation loads, comprising:

[0016] An information acquisition module is used to acquire the power supply information of the shared power distribution system of the current urban rail transit station and the power consumption information of each rail transit line, wherein the power supply information includes: the total power demand at time t, the power output of the shared power distribution system at time t, the target power output of the shared power distribution system at time t, and the power output of the shared power distribution system at a moment before time t; the power consumption information includes: the target power demand of the rail transit line at time t, the power demand of the rail transit line at time t, the power demand of the rail transit line at a moment before time t, the impedance of the rail transit line, and the power allocation ratio of the rail transit line in the shared power distribution system at time t;

[0017] The adjustment module is used to set up a rail transit line power dispatching model, and simulate the rail transit power consumption according to the power supply information and the power consumption information, and dynamically adjust the rail transit power according to the real-time simulation situation.

[0018] Furthermore, the rail transit line power dispatching model includes:

[0019]

[0020] Among them, k 1 is the first adjustment factor, P total (t) is the total power demand at time t, P shared (t) is the power output of the shared distribution system at time t, k 2 is the second adjustment factor, is the target power output of the shared distribution system at time t, k 3 is the third adjustment factor, is the power output of the shared distribution system at a moment before time t, α i is the first adjustment factor of the ith rail transit line, P i target (t) is the target power demand of the ith rail transit line at time t, P i (t) is the power demand of the ith rail transit line at time t, β i is the second adjustment factor of the ith rail transit line, P i prev (t) is the power demand of the ith rail transit line at a moment before time t, γ i is the third adjustment factor of the ith rail transit line, Z i is the impedance of the ith rail transit line, δ iis the fourth adjustment factor of the ith rail transit line, n is the number of rail transit lines, f i (t) is the power allocation ratio of the i-th rail transit line in the shared distribution system at time t.

[0021] Furthermore, it also includes setting up a power dispatching model for power consuming equipment to perform power dispatching on the power consuming equipment in the current urban rail transit station.

[0022] Furthermore, the power dispatching model package of the power-consuming equipment:

[0023]

[0024] Where m is the number of electrical equipment, Q l is the power demand of the lth electrical equipment in the current urban rail transit station, f l ′ is the power distribution ratio of the lth power-consuming equipment in the current urban rail transit station, Q shared is the power output of the current urban rail transit station, λ 1 is the first weight, δt l is the time variation of the power demand of the lth electrical equipment, λ 2 is the second weight, λ 3 is the third weight, λ 4 The fourth weight.

[0025] Furthermore, the electrical equipment includes: service equipment and interval maintenance equipment. A three-level load main box is respectively set at both ends of the current urban rail transit station to provide power for the service equipment and the interval maintenance equipment.

[0026] Compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:

[0027] 1. The substation feeder switches were adjusted from 8 groups to 2 groups, saving the investment in 0.4kV equipment construction of the substation;

[0028] 2. The number of cables fed out of the substation was adjusted from 8 to 2, reducing cable investment and construction costs;

[0029] 3. The number of terminal distribution boxes is adjusted from 8 to 4, reducing the investment in distribution boxes and saving costs;

[0030] 4. The cable is charged for a long time in humid places, which is beneficial to improve the life of the cable in humid places;

[0031] 4. Since the cables are selected according to the load types with large capacity, when the load types with small capacity are running, the cable loss is small. Overall, the line loss is lower than the original system.

[0032] 5. The shared power distribution system will reduce investment, increase cable life, and reduce cable loss. In the context of high-quality development of rail transit, it has wide promotion value in the national rail transit.

[0033] 6. In addition, the present invention can also perform real-time power distribution and dispatching for multiple rail transit lines in urban rail transit stations, making full use of electrical energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a flow chart of the method of embodiment 1 of the present invention;

[0035] Figure 2 is a system structure diagram of Embodiment 2 of the present invention;

[0036] Figure 3 This is the current power distribution architecture diagram for service equipment and interval maintenance equipment;

[0037] Figure 4 This is a diagram of the power distribution architecture of the service equipment and interval maintenance equipment according to Example 2 of the present invention. DETAILED DESCRIPTION

[0038] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] The method provided by the present invention can be implemented in the following terminal environment, and the terminal may include one or more of the following components: a processor, a storage medium, and a display screen. The storage medium stores at least one instruction, and the instruction is loaded and executed by the processor to implement the method described in the following embodiment.

[0040] The processor may include one or more processing cores. The processor uses various interfaces and lines to connect various parts in the entire terminal, and executes various functions of the terminal and processes data by running or executing instructions, programs, code sets or instruction sets stored in the storage medium, and calling data stored in the storage medium.

[0041] The storage medium may include a random access memory (RAM) or a read-only memory (ROM). The storage medium may be used to store instructions, programs, codes, code sets or instructions.

[0042] The display is used to show the interactive cross-section of each application.

[0043] All subscripts in the formulas of the present invention are only used to distinguish parameters and have no actual meaning.

[0044] In addition, those skilled in the art can understand that the structure of the above terminal does not constitute a limitation on the terminal, and the terminal may include more or fewer components, or combine certain components, or arrange the components differently. For example, the terminal also includes components such as a radio frequency circuit, an input unit, a sensor, an audio circuit, and a power supply, which will not be described in detail here.

[0045] Example 1

[0046] like Figure 1 As shown, an embodiment of the present invention provides a method for sharing a power distribution system for rail transit power operation loads, comprising:

[0047] Step 101, obtaining power supply information of the shared power distribution system of the current urban rail transit station and power consumption information of each rail transit line, wherein the power supply information includes: total power demand at time t, power output of the shared power distribution system at time t, target power output of the shared power distribution system at time t, and power output of the shared power distribution system at a moment before time t; the power consumption information includes: target power demand of the rail transit line at time t, power demand of the rail transit line at time t, power demand of the rail transit line at a moment before time t, impedance of the rail transit line, and power allocation ratio of the rail transit line in the shared power distribution system at time t;

[0048] Step 102, setting a rail transit line power dispatching model, and simulating rail transit power consumption according to the power supply information and the power consumption information, and dynamically adjusting rail transit power according to real-time simulation conditions.

[0049] Specifically, the rail transit line power dispatching model includes:

[0050]

[0051] Among them, k 1 is the first adjustment factor, P total (t) is the total power demand at time t, P shared (t) is the power output of the shared distribution system at time t, k 2 is the second adjustment factor, is the target power output of the shared distribution system at time t, k 3 is the third adjustment factor, is the power output of the shared distribution system at a moment before time t, α i is the first adjustment factor of the ith rail transit line, P i target (t) is the target power demand of the ith rail transit line at time t, P i(t) is the power demand of the ith rail transit line at time t, β i is the second adjustment factor of the ith rail transit line, P i prev (t) is the power demand of the ith rail transit line at a moment before time t, γ i is the third adjustment factor of the ith rail transit line, Z i is the impedance of the ith rail transit line, δ i is the fourth adjustment factor of the ith rail transit line, n is the number of rail transit lines, f i (t) is the power allocation ratio of the i-th rail transit line in the shared distribution system at time t.

[0052] Specifically, the rail transit line power dispatching model is solved by a numerical solution method, and the numerical solution method includes the Euler method or the fourth-order Runge-Kutta method.

[0053] Specifically, it also includes setting up a power dispatching model for power consuming equipment, which is used to dispatch power to the power consuming equipment in the current urban rail transit station.

[0054] Specifically, the power dispatch model package of the power consumption equipment includes:

[0055]

[0056] Where m is the number of electrical equipment, Q l is the power demand of the lth electrical equipment in the current urban rail transit station, f l ′ is the power distribution ratio of the lth power-consuming equipment in the current urban rail transit station, Q shared is the power output of the current urban rail transit station, λ 1 is the first weight, δt l is the time variation of the power demand of the lth electrical equipment, λ 2 is the second weight, λ 3 is the third weight, λ 4 The fourth weight.

[0057] Example 2

[0058] like Figure 2 As shown, the embodiment of the present invention also proposes a system for sharing a power distribution system for rail transit power operation loads, comprising:

[0059] An information acquisition module is used to acquire the power supply information of the shared power distribution system of the current urban rail transit station and the power consumption information of each rail transit line, wherein the power supply information includes: the total power demand at time t, the power output of the shared power distribution system at time t, the target power output of the shared power distribution system at time t, and the power output of the shared power distribution system at a moment before time t; the power consumption information includes: the target power demand of the rail transit line at time t, the power demand of the rail transit line at time t, the power demand of the rail transit line at a moment before time t, the impedance of the rail transit line, and the power allocation ratio of the rail transit line in the shared power distribution system at time t;

[0060] The adjustment module is used to set up a rail transit line power dispatching model, and simulate the rail transit power consumption according to the power supply information and the power consumption information, and dynamically adjust the rail transit power according to the real-time simulation situation.

[0061] Specifically, the rail transit line power dispatching model includes:

[0062]

[0063] Among them, k 1 is the first adjustment factor, P total (t) is the total power demand at time t, P shared (t) is the power output of the shared distribution system at time t, k 2 is the second adjustment factor, is the target power output of the shared distribution system at time t, k 3 is the third adjustment factor, is the power output of the shared distribution system at a moment before time t, α i is the first adjustment factor of the ith rail transit line, P i target (t) is the target power demand of the ith rail transit line at time t, P i (t) is the power demand of the ith rail transit line at time t, β i is the second adjustment factor of the ith rail transit line, P i prev (t) is the power demand of the ith rail transit line at a moment before time t, γ i is the third adjustment factor of the ith rail transit line, Z i is the impedance of the ith rail transit line, δ i is the fourth adjustment factor of the ith rail transit line, n is the number of rail transit lines, f i(t) is the power allocation ratio of the i-th rail transit line in the shared distribution system at time t.

[0064] Specifically, the rail transit line power dispatching model is solved by a numerical solution method, and the numerical solution method includes the Euler method or the fourth-order Runge-Kutta method.

[0065] Specifically, it also includes setting up a power dispatching model for power consuming equipment, which is used to dispatch power to the power consuming equipment in the current urban rail transit station.

[0066] Specifically, the power dispatch model package of the power consumption equipment includes:

[0067]

[0068] Where m is the number of electrical equipment, Q l is the power demand of the lth electrical equipment in the current urban rail transit station, f l ′ is the power distribution ratio of the lth power-consuming equipment in the current urban rail transit station, Q shared is the power output of the current urban rail transit station, λ 1 is the first weight, δt l is the time variation of the power demand of the lth electrical equipment, λ 2 is the second weight, λ 3 is the third weight, λ 4 The fourth weight.

[0069] Specifically, the electrical equipment includes: service equipment and interval maintenance equipment. A three-level load main box is respectively set at both ends of the current urban rail transit station to provide power for the service equipment and the interval maintenance equipment.

[0070] like Figure 3 As shown in the figure, the current technical solution is that the service equipment adopts radial power distribution mode, and 4 power supplies are fed from the substation to provide power for the service equipment distribution boxes at the station hall A end, the station hall B end, the platform A end, and the platform B end. 4 power supplies are fed from the substation to provide power for the left line of the A end, the right line of the A end, the left line of the B end, and the right line of the B end. In this way, the low-voltage cabinet requires 8 feeder switches, the distribution circuit requires 8 cables, and the end requires 8 distribution boxes.

[0071] like Figure 4 As shown, the service equipment and interval maintenance of the present invention are used in different time periods. Both the service equipment and interval maintenance are third-level loads. The distribution boxes of both are set in the distribution rooms at both ends of the station. In the distribution system solution, there is no circuitous laying of distribution cables. Therefore, it is completely feasible to share the distribution system, and the low-voltage cabinet feeder, loop cable, and distribution box inlet switch only need to be selected according to the larger capacity of the two types.

[0072] A three-level load main box is set at each end of the station (platform or station hall) to provide power for the service equipment and interval maintenance at this end. In this way, the low-voltage cabinet only needs two feeder switches, and the distribution circuit needs two cables. The cross-section of this cable is consistent with the original plan, and there is no need to increase the cross-section. The end is integrated into two distribution main boxes and two station hall advertising lighting distribution boxes.

[0073] Example 3

[0074] The embodiment of the present invention further proposes a storage medium storing a plurality of instructions, wherein the instructions are used to implement the method for sharing a power distribution system for rail transit power operation loads.

[0075] Optionally, in this embodiment, the above storage medium may be located in any computer terminal in a computer terminal group in a computer network, or in any mobile terminal in a mobile terminal group.

[0076] Optionally, in this embodiment, the storage medium is configured to store program codes for executing the following steps: Step 101, obtaining power supply information of the shared power distribution system of the current urban rail transit station and power consumption information of each rail transit line, wherein the power supply information includes: total power demand at time t, power output of the shared power distribution system at time t, target power output of the shared power distribution system at time t, and power output of the shared power distribution system at a moment before time t; the power consumption information includes: target power demand of the rail transit line at time t, power demand of the rail transit line at time t, power demand of the rail transit line at a moment before time t, impedance of the rail transit line, and power allocation ratio of the rail transit line in the shared power distribution system at time t;

[0077] Step 102, setting a rail transit line power dispatching model, and simulating rail transit power consumption according to the power supply information and the power consumption information, and dynamically adjusting rail transit power according to real-time simulation conditions.

[0078] Specifically, the rail transit line power dispatching model includes:

[0079]

[0080] Among them, k 1 is the first adjustment factor, P total (t) is the total power demand at time t, P shared (t) is the power output of the shared distribution system at time t, k 2 is the second adjustment factor, is the target power output of the shared distribution system at time t, k 3is the third adjustment factor, is the power output of the shared distribution system at a moment before time t, α i is the first adjustment factor of the ith rail transit line, P i targtet (t) is the target power demand of the ith rail transit line at time t, P i (t) is the power demand of the ith rail transit line at time t, β i is the second adjustment factor of the ith rail transit line, P i prev (t) is the power demand of the ith rail transit line at a moment before time t, γ i is the third adjustment factor of the ith rail transit line, Z i is the impedance of the ith rail transit line, δ i is the fourth adjustment factor of the ith rail transit line, n is the number of rail transit lines, f i (t) is the power allocation ratio of the i-th rail transit line in the shared distribution system at time t.

[0081] Specifically, the rail transit line power dispatching model is solved by a numerical solution method, and the numerical solution method includes the Euler method or the fourth-order Runge-Kutta method.

[0082] Specifically, it also includes setting up a power dispatching model for power consuming equipment, which is used to dispatch power to the power consuming equipment in the current urban rail transit station.

[0083] Specifically, the power dispatch model package of the power consumption equipment includes:

[0084]

[0085] Where m is the number of electrical equipment, Q l is the power demand of the lth electrical equipment in the current urban rail transit station, f l ′ is the power distribution ratio of the lth power-consuming equipment in the current urban rail transit station, Q shared is the power output of the current urban rail transit station, λ 1 is the first weight, δt l is the time variation of the power demand of the lth electrical equipment, λ 2 is the second weight, λ 3 is the third weight, λ 4 The fourth weight.

[0086] Example 4

[0087] An embodiment of the present invention also proposes an electronic device, including a processor and a storage medium connected to the processor, wherein the storage medium stores a plurality of instructions, and the instructions can be loaded and executed by the processor so that the processor can execute a method for sharing a power distribution system for rail transit power operation loads.

[0088] Specifically, the electronic device of this embodiment may be a computer terminal, and the computer terminal may include: one or more processors, and a storage medium.

[0089] Among them, the storage medium can be used to store software programs and modules, such as a method for a rail transit power operation load sharing distribution system in an embodiment of the present invention, and the corresponding program instructions / modules. The processor executes various functional applications and data processing by running the software programs and modules stored in the storage medium, that is, realizing the above-mentioned method for a rail transit power operation load sharing distribution system. The storage medium may include high-speed random storage media, and may also include non-volatile storage media, such as one or more magnetic storage systems, flash memory, or other non-volatile solid-state storage media. In some instances, the storage medium may further include storage media remotely arranged relative to the processor, and these remote storage media may be connected to the terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0090] The processor can call the information and application program stored in the storage medium through the transmission system to execute the steps: Step 101, obtaining the power supply information of the shared power distribution system of the current urban rail transit station and the power consumption information of each rail transit line, wherein the power supply information includes: the total power demand at time t, the power output of the shared power distribution system at time t, the target power output of the shared power distribution system at time t, and the power output of the shared power distribution system at a moment before time t; the power consumption information includes: the target power demand of the rail transit line at time t, the power demand of the rail transit line at time t, the power demand of the rail transit line at a moment before time t, the impedance of the rail transit line, and the power distribution ratio of the rail transit line in the shared power distribution system at time t;

[0091] Step 102, setting a rail transit line power dispatching model, and simulating rail transit power consumption according to the power supply information and the power consumption information, and dynamically adjusting rail transit power according to real-time simulation conditions.

[0092] Specifically, the rail transit line power dispatching model includes:

[0093]

[0094] Among them, k1 is the first adjustment factor, P total (t) is the total power demand at time t, P shared (t) is the power output of the shared distribution system at time t, k 2 is the second adjustment factor, is the target power output of the shared distribution system at time t, k 3 is the third adjustment factor, is the power output of the shared distribution system at a moment before time t, α i is the first adjustment factor of the ith rail transit line, P i target (t) is the target power demand of the ith rail transit line at time t, P i (t) is the power demand of the ith rail transit line at time t, β i is the second adjustment factor of the ith rail transit line, P i prev (t) is the power demand of the ith rail transit line at a moment before time t, γ i is the third adjustment factor of the ith rail transit line, Z i is the impedance of the ith rail transit line, δ i is the fourth adjustment factor of the ith rail transit line, n is the number of rail transit lines, f i (t) is the power allocation ratio of the i-th rail transit line in the shared distribution system at time t.

[0095] Specifically, the rail transit line power dispatching model is solved by a numerical solution method, and the numerical solution method includes the Euler method or the fourth-order Runge-Kutta method.

[0096] Specifically, it also includes setting up a power dispatching model for power consuming equipment, which is used to dispatch power to the power consuming equipment in the current urban rail transit station.

[0097] Specifically, the power dispatch model package of the power consumption equipment includes:

[0098]

[0099] Where m is the number of electrical equipment, Q l is the power demand of the lth electrical equipment in the current urban rail transit station, f l ′ is the power distribution ratio of the lth power-consuming equipment in the current urban rail transit station, Q shared is the power output of the current urban rail transit station, λ 1 is the first weight, δt lis the time variation of the power demand of the lth electrical equipment, λ 2 is the second weight, λ 3 is the third weight, λ 4 The fourth weight.

[0100] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0101] In the above embodiments of the present invention, 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.

[0102] In the several embodiments provided by the present invention, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the system embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0103] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0104] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0105] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only storage medium (ROM, Read-Only Memory), random access storage medium (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0106] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A method for rail transit power operation load sharing power distribution system, characterized in that: include: Obtaining power supply information of the shared power distribution system of the current urban rail transit station and power consumption information of each rail transit line, wherein the power supply information includes: total power demand at time t, power output of the shared power distribution system at time t, target power output of the shared power distribution system at time t, and power output of the shared power distribution system at a moment before time t; the power consumption information includes: target power demand of the rail transit line at time t, power demand of the rail transit line at time t, power demand of the rail transit line at a moment before time t, impedance of the rail transit line, and power allocation ratio of the rail transit line in the shared power distribution system at time t; A rail transit line power dispatching model is set up, and the rail transit power consumption is simulated according to the power supply information and the power consumption information, and the rail transit power is dynamically adjusted according to the real-time simulation situation.

2. A method for sharing a power distribution system for rail transit power operation loads as claimed in claim 1, characterized in that: The rail transit line power dispatching model includes: Among them, k1 is the first adjustment factor, P total (t) is the total power demand at time t, P shared (t) is the power output of the shared distribution system at time t, k2 is the second adjustment factor, is the target power output of the shared distribution system at time t, k3 is the third adjustment factor, is the power output of the shared distribution system at a moment before time t, α i is the first adjustment factor of the ith rail transit line, P i target (t) is the target power demand of the ith rail transit line at time t, P i (t) is the power demand of the ith rail transit line at time t, β i is the second adjustment factor of the ith rail transit line, P i prev (t) is the power demand of the ith rail transit line at a moment before time t, γ i is the third adjustment factor of the ith rail transit line, Z i is the impedance of the ith rail transit line, δ i is the fourth adjustment factor of the ith rail transit line, n is the number of rail transit lines, f i (t) is the power allocation ratio of the i-th rail transit line in the shared distribution system at time t.

3. A method for sharing a power distribution system for rail transit power operation loads as claimed in claim 2, characterized in that: It also includes setting up a power dispatching model for power consuming equipment, which is used to dispatch power to the power consuming equipment in the current urban rail transit station.

4. A method for sharing a power distribution system for rail transit power operation loads as claimed in claim 3, characterized in that: The power dispatch model package of the power consumption equipment: Where m is the number of electrical equipment, Q l is the power demand of the lth electrical equipment in the current urban rail transit station, f l ′ is the power distribution ratio of the lth power-consuming equipment in the current urban rail transit station, Q shared is the power output of the current urban rail transit station, λ1 is the first weight, δt l is the time variation of the power demand of the lth electrical equipment, λ2 is the second weight, λ3 is the third weight, and λ4 is the fourth weight.

5. A method for sharing a power distribution system for rail transit power operation loads as claimed in claim 2, characterized in that: The rail transit line power dispatching model is solved by a numerical solution method, and the numerical solution method includes the Euler method or the fourth-order Runge-Kutta method.

6. A system for sharing power distribution system with rail transit power operation loads, characterized in that: include: An information acquisition module is used to acquire the power supply information of the shared power distribution system of the current urban rail transit station and the power consumption information of each rail transit line, wherein the power supply information includes: the total power demand at time t, the power output of the shared power distribution system at time t, the target power output of the shared power distribution system at time t, and the power output of the shared power distribution system at a moment before time t; the power consumption information includes: the target power demand of the rail transit line at time t, the power demand of the rail transit line at time t, the power demand of the rail transit line at a moment before time t, the impedance of the rail transit line, and the power allocation ratio of the rail transit line in the shared power distribution system at time t; The adjustment module is used to set up a rail transit line power dispatching model, and simulate the rail transit power consumption according to the power supply information and the power consumption information, and dynamically adjust the rail transit power according to the real-time simulation situation.

7. A rail transit power operation load sharing distribution system as claimed in claim 6, characterized in that: The rail transit line power dispatching model includes: Among them, k1 is the first adjustment factor, P total (t) is the total power demand at time t, P shared (t) is the power output of the shared distribution system at time t, k2 is the second adjustment factor, is the target power output of the shared distribution system at time t, k3 is the third adjustment factor, is the power output of the shared distribution system at a moment before time t, α i is the first adjustment factor of the ith rail transit line, P i target (t) is the target power demand of the ith rail transit line at time t, P i (t) is the power demand of the ith rail transit line at time t, β i is the second adjustment factor of the ith rail transit line, P i prev (t) is the power demand of the ith rail transit line at a moment before time t, γ i is the third adjustment factor of the ith rail transit line, Z i is the impedance of the ith rail transit line, δ i is the fourth adjustment factor of the ith rail transit line, n is the number of rail transit lines, f i (t) is the power allocation ratio of the i-th rail transit line in the shared distribution system at time t.

8. A rail transit power operation load sharing distribution system as claimed in claim 7, characterized in that: It also includes setting up a power dispatching model for power consuming equipment, which is used to dispatch power to the power consuming equipment in the current urban rail transit station.

9. A rail transit power operation load sharing distribution system as claimed in claim 8, characterized in that: The power dispatch model package of the power consumption equipment: Where m is the number of electrical equipment, Q l is the power demand of the lth electrical equipment in the current urban rail transit station, f l ′ is the power distribution ratio of the lth power-consuming equipment in the current urban rail transit station, Q shared is the power output of the current urban rail transit station, λ1 is the first weight, δt l is the time variation of the power demand of the lth electrical equipment, λ2 is the second weight, λ3 is the third weight, and λ4 is the fourth weight.

10. A rail transit power operation load sharing distribution system as claimed in claim 8, characterized in that: The electrical equipment includes: service equipment and interval maintenance equipment. A three-level load main box is respectively set at both ends of the current urban rail transit station to provide power for the service equipment and the interval maintenance equipment.

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