A method and system for rail transit power operation load common power distribution system

Abstract

This invention discloses a method and system for a shared power distribution system for rail transit power operation loads. The method includes: acquiring 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. The power supply information includes: total power demand at time t, power output of the shared power distribution system at time t, and target power output of the shared power distribution system at 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 the time 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 power dispatching model for the rail transit lines is set up, and the rail transit power consumption is simulated based on the power supply information and the power consumption information. The rail transit power is dynamically adjusted based on the real-time simulation results.

Description

Technical Field

[0001] This invention belongs to the field of rail transit power dispatching technology, and more specifically, relates to a method and system for a shared power distribution system for rail transit power operation loads. Background Technology

[0002] Currently, service equipment (including advertising, vending machines, etc.) and maintenance equipment in urban rail transit stations are equipped with separate distribution boxes, and a radial power distribution scheme from the station substation is adopted. This results in a large number of cables, high construction investment, and significant construction difficulties. Different types of loads operate with energized cables at different times, and the short energized time of the cables also shortens their service life.

[0003] Furthermore, there is no existing technology that can efficiently distribute power across multiple rail transit lines. Summary of the Invention

[0004] To address the above technical problems, this invention proposes a method for a shared power distribution system for rail transit power operation loads, comprising:

[0005] Obtain 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. 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 the time 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 the time 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.

[0006] A power dispatching model for rail transit lines is set up, and the power consumption of rail transit is simulated based on the power supply information and the power consumption information. The power supply of rail transit is dynamically adjusted according to the real-time simulation.

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

[0008]

[0009] Where k1 is the first adjustment factor, P total (t) represents the total power demand at time t, P shared (t) represents the power output of the shared power distribution system at time t, and k2 is the second adjustment factor. For the target power output of the shared power distribution system at time t, k3 is the third adjustment factor. For the power output of the shared power distribution system at a moment before time t, α i P is the first adjustment factor for the i-th rail transit line. i target (t) represents the target power demand of the i-th rail transit line at time t, P i (t) represents the power demand of the i-th rail transit line at time t, β i P is the second adjustment factor for the i-th rail transit line. i prev (t) represents the power demand of the i-th rail transit line at a time t before time t, γ i Z is the third adjustment factor for the i-th rail transit line. i Let δ be the impedance of the i-th rail transit line. i f is the fourth adjustment factor for the i-th rail transit line, where n is the number of rail transit lines. i (t) represents the power distribution ratio of the i-th rail transit line in the shared power distribution system at time t.

[0010] Furthermore, it also includes setting up a power dispatching model for electrical equipment, used to dispatch power for electrical equipment in current urban rail transit stations.

[0011] Furthermore, the power dispatching model package for the electrical equipment includes:

[0012]

[0013] Where m is the number of electrical devices, Q l For the power demand of the l-th electrical equipment in a current urban rail transit station, f l ′ represents the power allocation ratio of the l-th electrical device in the current urban rail transit station, Q shared Let λ1 be the power output of the current urban rail transit station, and δt be the first weight. l Let λ be the time variation of the power demand of the l-th electrical device, λ2 be the second weight, λ3 be the third weight, and λ4 be the fourth weight.

[0014] Furthermore, the power dispatching model of the rail transit line is solved using numerical methods, including the Euler method or the fourth-order Runge-Kutta method.

[0015] This invention also proposes a shared power distribution system for rail transit power operation loads, comprising:

[0016] The 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. 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 the time 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 the time 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.

[0017] The adjustment module is used to set up a power dispatching model for rail transit lines, simulate the power consumption of rail transit based on the power supply information and the power consumption information, and dynamically adjust the power supply of rail transit based on the real-time simulation.

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

[0019]

[0020] Where k1 is the first adjustment factor, P total (t) represents the total power demand at time t, P shared (t) represents the power output of the shared power distribution system at time t, and k2 is the second adjustment factor. For the target power output of the shared power distribution system at time t, k3 is the third adjustment factor. For the power output of the shared power distribution system at a moment before time t, α i P is the first adjustment factor for the i-th rail transit line. i target (t) represents the target power demand of the i-th rail transit line at time t, P i (t) represents the power demand of the i-th rail transit line at time t, β i P is the second adjustment factor for the i-th rail transit line. i prev (t) represents the power demand of the i-th rail transit line at a time t before time t, γ i Z is the third adjustment factor for the i-th rail transit line. i Let δ be the impedance of the i-th rail transit line. i f is the fourth adjustment factor for the i-th rail transit line, where n is the number of rail transit lines. i (t) represents the power distribution ratio of the i-th rail transit line in the shared power distribution system at time t.

[0021] Furthermore, it also includes setting up a power dispatching model for electrical equipment, used to dispatch power for electrical equipment in current urban rail transit stations.

[0022] Furthermore, the power dispatching model package for the electrical equipment includes:

[0023]

[0024] Where m is the number of electrical devices, Q l For the power demand of the l-th electrical equipment in a current urban rail transit station, f l ′ represents the power allocation ratio of the l-th electrical device in the current urban rail transit station, Q shared Let λ1 be the power output of the current urban rail transit station, and δt be the first weight. l Let λ be the time variation of the power demand of the l-th electrical device, λ2 be the second weight, λ3 be the third weight, and λ4 be the fourth weight.

[0025] Furthermore, the electrical equipment includes service equipment and section maintenance equipment. A three-level load control box is installed at each end of the current urban rail transit station to provide power to the service equipment and the section maintenance equipment.

[0026] Compared with the prior art, the above-described technical solutions conceived in this invention have the following beneficial effects:

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

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

[0029] 3. The number of terminal distribution boxes has been reduced from 8 to 4, reducing investment in distribution box structures and saving costs;

[0030] 4. Cables carry electricity for a longer time in damp environments, which helps to extend cable life in damp conditions;

[0031] 4. Because the cables are selected according to the type of load with large capacity, the cable loss is small when the load type with small capacity is running. Overall, the line loss is reduced compared to the original system.

[0032] 5. A shared power distribution system will reduce investment, extend cable life, and reduce cable loss. In the context of high-quality development of rail transit, it has broad application value across the country's rail transit system.

[0033] 6. In addition, the present invention can also perform real-time power distribution and scheduling for multiple rail transit lines in urban rail transit stations, making full use of electrical energy. Attached Figure Description

[0034] Figure 1 This is a flowchart of the method in Embodiment 1 of the present invention;

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

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

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

[0038] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0039] The method provided by this invention can be implemented in a terminal environment that 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, which is loaded and executed by the processor to implement the method described in the following embodiments.

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

[0041] Storage media can include random access memory (RAM) or read-only memory (ROM). Storage media can be used to store instructions, programs, code, code sets, or instructions.

[0042] The display screen is used to show the interactive sections of various applications.

[0043] In the formula of this invention, all subscripts are only used to distinguish parameters and have no actual meaning.

[0044] In addition, those skilled in the art will understand that the structure of the terminal described above does not constitute a limitation on the terminal. The terminal may include more or fewer components, or combine certain components, or have different component arrangements. For example, the terminal may also include radio frequency circuits, input units, sensors, audio circuits, power supplies, and other components, which will not be described in detail here.

[0045] Example 1

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

[0047] Step 101: Obtain 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. 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 the time 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 the time 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.

[0048] Step 102: Set up a power dispatching model for the rail transit line, and simulate the power consumption of the rail transit based on the power supply information and the power consumption information. Based on the real-time simulation, dynamically adjust the power supply of the rail transit.

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

[0050]

[0051] Where k1 is the first adjustment factor, P total (t) represents the total power demand at time t, P shared (t) represents the power output of the shared power distribution system at time t, and k2 is the second adjustment factor. For the target power output of the shared power distribution system at time t, k3 is the third adjustment factor. For the power output of the shared power distribution system at a moment before time t, α i P is the first adjustment factor for the i-th rail transit line. i target (t) represents the target power demand of the i-th rail transit line at time t, P i (t) represents the power demand of the i-th rail transit line at time t, β i P is the second adjustment factor for the i-th rail transit line. i prev (t) represents the power demand of the i-th rail transit line at a time t before time t, γ i Z is the third adjustment factor for the i-th rail transit line. i Let δ be the impedance of the i-th rail transit line. if is the fourth adjustment factor for the i-th rail transit line, where n is the number of rail transit lines. i (t) represents the power distribution ratio of the i-th rail transit line in the shared power distribution system at time t.

[0052] Specifically, the power dispatching model of the rail transit line is solved using numerical methods, including the Euler method or the fourth-order Runge-Kutta method.

[0053] Specifically, this also includes setting up a power dispatching model for electrical equipment, which is used to dispatch power for electrical equipment in current urban rail transit stations.

[0054] Specifically, the power dispatching model package for electrical equipment includes:

[0055]

[0056] Where m is the number of electrical devices, Q l For the power demand of the l-th electrical equipment in a current urban rail transit station, f l ′ represents the power allocation ratio of the l-th electrical device in the current urban rail transit station, Q shared Let λ1 be the power output of the current urban rail transit station, and δt be the first weight. l Let λ be the time variation of the power demand of the l-th electrical device, λ2 be the second weight, λ3 be the third weight, and λ4 be the fourth weight.

[0057] Example 2

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

[0059] The 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. 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 the time 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 the time 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.

[0060] The adjustment module is used to set up a power dispatching model for rail transit lines, simulate the power consumption of rail transit based on the power supply information and the power consumption information, and dynamically adjust the power supply of rail transit based on the real-time simulation.

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

[0062]

[0063] Where k1 is the first adjustment factor, P total (t) represents the total power demand at time t, P shared (t) represents the power output of the shared power distribution system at time t, and k2 is the second adjustment factor. For the target power output of the shared power distribution system at time t, k3 is the third adjustment factor. For the power output of the shared power distribution system at a moment before time t, α i P is the first adjustment factor for the i-th rail transit line. i target (t) represents the target power demand of the i-th rail transit line at time t, P i (t) represents the power demand of the i-th rail transit line at time t, β i P is the second adjustment factor for the i-th rail transit line. i prev (t) represents the power demand of the i-th rail transit line at a time t before time t, γ i Z is the third adjustment factor for the i-th rail transit line. i Let δ be the impedance of the i-th rail transit line. i f is the fourth adjustment factor for the i-th rail transit line, where n is the number of rail transit lines. i (t) represents the power distribution ratio of the i-th rail transit line in the shared power distribution system at time t.

[0064] Specifically, the power dispatching model of the rail transit line is solved using numerical methods, including the Euler method or the fourth-order Runge-Kutta method.

[0065] Specifically, this also includes setting up a power dispatching model for electrical equipment, which is used to dispatch power for electrical equipment in current urban rail transit stations.

[0066] Specifically, the power dispatching model package for electrical equipment includes:

[0067]

[0068] Where m is the number of electrical devices, Ql For the power demand of the l-th electrical equipment in a current urban rail transit station, f l ′ represents the power allocation ratio of the l-th electrical device in the current urban rail transit station, Q shared Let λ1 be the power output of the current urban rail transit station, and δt be the first weight. l Let λ be the time variation of the power demand of the l-th electrical device, λ2 be the second weight, λ3 be the third weight, and λ4 be the fourth weight.

[0069] Specifically, the electrical equipment includes service equipment and section maintenance equipment. A three-level load control box is installed at each end of the current urban rail transit station to provide power to the service equipment and the section maintenance equipment.

[0070] like Figure 3 As shown, the current technical solution uses a radial power distribution system for the service equipment, feeding four power sources from the substation to power the service equipment distribution boxes at station concourse A, station concourse B, platform A, and platform B. Four more power sources from the substation power the maintenance boxes for the left and right tracks at A, B, and B. This requires eight feeder switches in the low-voltage cabinet, eight cable circuits in the distribution loop, and eight distribution boxes at the terminal.

[0071] like Figure 4 As shown, the service equipment and the section maintenance equipment of this invention are used in different time periods. Both the service equipment and the section maintenance equipment are level three loads, and their distribution boxes are located in the distribution rooms at both ends of the station. In the power distribution system scheme, there is no detour in the laying of power distribution cables. Therefore, it is entirely feasible for them to share the power distribution system. The low-voltage switchgear feeder, circuit cable, and distribution box incoming switch only need to be selected according to the larger of the two types.

[0072] One three-level load control box is installed at each end of the station (platform or concourse) to provide power for the service equipment and maintenance of the section. In this way, the low-voltage cabinet only needs 2 feeder switches and the power distribution circuit needs 2 cables. The cross-section of these cables is the same as the original plan, so there is no need to increase the cross-section. The ends are integrated into 2 main distribution boxes and 2 concourse advertising lighting distribution boxes.

[0073] Example 3

[0074] This invention also proposes a storage medium storing multiple instructions for implementing the method of a shared power distribution system for rail transit power operation loads.

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

[0076] Optionally, in this embodiment, the storage medium is configured to store program code for performing the following 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 time 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 time 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.

[0077] Step 102: Set up a power dispatching model for the rail transit line, and simulate the power consumption of the rail transit based on the power supply information and the power consumption information. Based on the real-time simulation, dynamically adjust the power supply of the rail transit.

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

[0079]

[0080] Where k1 is the first adjustment factor, P total (t) represents the total power demand at time t, P shared (t) represents the power output of the shared power distribution system at time t, and k2 is the second adjustment factor. For the target power output of the shared power distribution system at time t, k3 is the third adjustment factor. For the power output of the shared power distribution system at a moment before time t, α i P is the first adjustment factor for the i-th rail transit line. i targtet (t) represents the target power demand of the i-th rail transit line at time t, P i (t) represents the power demand of the i-th rail transit line at time t, β i P is the second adjustment factor for the i-th rail transit line. i prev (t) represents the power demand of the i-th rail transit line at a time t before time t, γ i Z is the third adjustment factor for the i-th rail transit line. i Let δ be the impedance of the i-th rail transit line. i f is the fourth adjustment factor for the i-th rail transit line, where n is the number of rail transit lines. i(t) represents the power distribution ratio of the i-th rail transit line in the shared power distribution system at time t.

[0081] Specifically, the power dispatching model of the rail transit line is solved using numerical methods, including the Euler method or the fourth-order Runge-Kutta method.

[0082] Specifically, this also includes setting up a power dispatching model for electrical equipment, which is used to dispatch power for electrical equipment in current urban rail transit stations.

[0083] Specifically, the power dispatching model package for electrical equipment includes:

[0084]

[0085] Where m is the number of electrical devices, Q l For the power demand of the l-th electrical equipment in a current urban rail transit station, f l ′ represents the power allocation ratio of the l-th electrical device in the current urban rail transit station, Q shared Let λ1 be the power output of the current urban rail transit station, and δt be the first weight. l Let λ be the time variation of the power demand of the l-th electrical device, λ2 be the second weight, λ3 be the third weight, and λ4 be the fourth weight.

[0086] Example 4

[0087] This invention also proposes an electronic device, including a processor and a storage medium connected to the processor. The storage medium stores multiple instructions, which can be loaded and executed by the processor to enable the processor to perform a method for a shared power distribution system for rail transit power operation loads.

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

[0089] The storage medium can be used to store software programs and modules, such as the method for a shared power distribution system for rail transit power operation loads in an embodiment of the present invention. The corresponding program instructions / modules are executed by the processor through running the software programs and modules stored in the storage medium, thereby performing various functional applications and data processing, thus realizing the aforementioned method for a shared power distribution system for rail transit power operation loads. The storage medium may include high-speed random access 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 configured relative to the processor, which can be connected to the terminal via a network. Examples of such networks 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 stored in the storage medium through the transmission system to execute the following steps: Step 101, obtain 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. 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 the time 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 the time 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: Set up a power dispatching model for the rail transit line, and simulate the power consumption of the rail transit based on the power supply information and the power consumption information. Based on the real-time simulation, dynamically adjust the power supply of the rail transit.

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

[0093]

[0094] Where k1 is the first adjustment factor, P total (t) represents the total power demand at time t, P shared (t) represents the power output of the shared power distribution system at time t, and k2 is the second adjustment factor. For the target power output of the shared power distribution system at time t, k3 is the third adjustment factor. For the power output of the shared power distribution system at a moment before time t, α i P is the first adjustment factor for the i-th rail transit line.i target (t) represents the target power demand of the i-th rail transit line at time t, P i (t) represents the power demand of the i-th rail transit line at time t, β i P is the second adjustment factor for the i-th rail transit line. i prev (t) represents the power demand of the i-th rail transit line at a time t before time t, γ i Z is the third adjustment factor for the i-th rail transit line. i Let δ be the impedance of the i-th rail transit line. i f is the fourth adjustment factor for the i-th rail transit line, where n is the number of rail transit lines. i (t) represents the power distribution ratio of the i-th rail transit line in the shared power distribution system at time t.

[0095] Specifically, the power dispatching model of the rail transit line is solved using numerical methods, including the Euler method or the fourth-order Runge-Kutta method.

[0096] Specifically, this also includes setting up a power dispatching model for electrical equipment, which is used to dispatch power for electrical equipment in current urban rail transit stations.

[0097] Specifically, the power dispatching model package for electrical equipment includes:

[0098]

[0099] Where m is the number of electrical devices, Q l For the power demand of the l-th electrical equipment in a current urban rail transit station, f l ′ represents the power allocation ratio of the l-th electrical device in the current urban rail transit station, Q shared Let λ1 be the power output of the current urban rail transit station, and δt be the first weight. l Let λ be the time variation of the power demand of the l-th electrical device, λ2 be the second weight, λ3 be the third weight, and λ4 be the fourth weight.

[0100] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0101] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0102] In the several embodiments provided by this invention, it should be understood that the disclosed technical content can be implemented in other ways. The system embodiments described above are merely illustrative; for example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between units or modules, and may be electrical or other forms.

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

[0104] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0105] If the integrated unit is implemented as 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, in essence, 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. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: USB flash drives, read-only storage media (ROM), random access storage media (RAM), portable hard drives, magnetic disks, optical disks, and other media capable of storing program code.

[0106] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A method for sharing a power distribution system for rail transit power operation loads, characterized in that, include: Obtain power supply information for the shared power distribution system of current urban rail transit stations and power consumption information for each rail transit line, wherein the power supply information includes: in time Total power demand at any given time, shared power distribution system at any given time Power output at any time, shared power distribution system at any time Target power output at any time, shared power distribution system at any time The power output at a previous moment, the electricity consumption information includes: the power output of the rail transit line at a given time. Target power demand at any given time, rail transit lines in time Power demand at any time, rail transit lines at any time The power demand at the previous moment, the impedance of the rail transit line, and the time of the rail transit line The power distribution ratio in a shared power distribution system at all times; A power dispatching model for rail transit lines is set up, and the power consumption of rail transit is simulated based on the power supply information and the power consumption information. The power supply of rail transit is dynamically adjusted based on the real-time simulation. The power dispatching model for the rail transit line includes: ， ， ， in, As the first adjustment factor, In time Total power demand at any given time For shared power distribution systems in time Power output at any given moment As the second adjustment factor, For shared power distribution systems in time Target power output at any given time As the third adjustment factor, For shared power distribution systems in time The power output at the previous moment, For the first The first adjustment factor for each rail transit line. For the first The rail transit lines at the time Target power requirement at any given time, For the first Each rail transit line in time Power requirements at any time For the first The second adjustment factor for each rail transit line. For the first The rail transit lines at the time The power demand at the previous moment, For the first The third adjustment factor for each rail transit line. For the first The impedance of a rail transit line For the first The fourth adjustment factor for each rail transit line. The number of rail transit lines. For the first Each rail transit line in time The power distribution ratio in a shared power distribution system at all times.

2. The method for a shared power distribution system for rail transit power operation loads as described in claim 1, characterized in that, It also includes setting up a power dispatching model for electrical equipment, which is used to dispatch power for electrical equipment in current urban rail transit stations.

3. The method for a shared power distribution system for rail transit power operation loads as described in claim 2, characterized in that, The power dispatch model for electrical equipment includes: ， in, The number of electrical devices, For the current urban rail transit station The power requirements of each electrical device For the first The power distribution ratio of individual electrical equipment in current urban rail transit stations This represents the power output of current urban rail transit stations. As the first weight, For the first The time-varying amount of power demand of an electrical device As the second weight, As the third weight, It is the fourth weight.

4. The method for a shared power distribution system for rail transit power operation loads as described in claim 1, characterized in that, The power dispatching model of the rail transit line is solved by numerical methods, including the Euler method or the fourth-order Runge-Kutta method.

5. A shared power distribution system for rail transit power operation loads, characterized in that, include: The information acquisition module is used to acquire power supply information of the shared power distribution system of the current urban rail transit stations and power consumption information of each rail transit line. The power supply information includes: time... Total power demand at any given time, shared power distribution system at any given time Power output at any time, shared power distribution system at any time Target power output at any time, shared power distribution system at any time The power output at a previous moment, the electricity consumption information includes: the power output of the rail transit line at a given time. Target power demand at any given time, rail transit lines in time Power demand at any time, rail transit lines at any time The power demand at the previous moment, the impedance of the rail transit line, and the time of the rail transit line The power distribution ratio in a shared power distribution system at all times; The adjustment module is used to set up a power dispatching model for rail transit lines, simulate the power consumption of rail transit based on the power supply information and the power consumption information, and dynamically adjust the power supply of rail transit based on the real-time simulation. The power dispatching model for the rail transit line includes: ， ， ， in, As the first adjustment factor, In time Total power demand at any given time For shared power distribution systems in time Power output at any given moment As the second adjustment factor, For shared power distribution systems in time Target power output at any given time As the third adjustment factor, For shared power distribution systems in time The power output at the previous moment, For the first The first adjustment factor for each rail transit line. For the first Each rail transit line in time Target power requirement at any given time, For the first Each rail transit line in time Power requirements at any time For the first The second adjustment factor for each rail transit line. For the first Each rail transit line in time The power demand at the previous moment, For the first The third adjustment factor for each rail transit line. For the first The impedance of a rail transit line For the first The fourth adjustment factor for each rail transit line. The number of rail transit lines. For the first Each rail transit line in time The power distribution ratio in a shared power distribution system at all times.

6. The system of a shared power distribution system for rail transit power operation load as described in claim 5, characterized in that, It also includes setting up a power dispatching model for electrical equipment, which is used to dispatch power for electrical equipment in current urban rail transit stations.

7. The system of a shared power distribution system for rail transit power operation load as described in claim 6, characterized in that, The power dispatch model for electrical equipment includes: ， in, The number of electrical devices, For the current urban rail transit station The power requirements of each electrical device For the first The power distribution ratio of individual electrical equipment in current urban rail transit stations This represents the power output of current urban rail transit stations. As the first weight, For the first The time-varying amount of power demand of an electrical device As the second weight, As the third weight, It is the fourth weight.

8. The system of a shared power distribution system for rail transit power operation load as described in claim 6, characterized in that, The electrical equipment includes service equipment and section maintenance equipment. A three-level load control box is installed at each end of the current urban rail transit station to provide power to the service equipment and the section maintenance equipment.

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