Cut sequence design method, device and equipment for same type load, storage medium

Abstract

The application provides a same-type load sequence design method, device, equipment and storage medium, and the sequence of cutting loads of different users in the same-type load is formulated in any power grid area, the same-type load is split according to the lowest switch level, the split result is grouped based on the annual load level, the grouping result is sorted by calculating the matching degree comprehensive index value, and the load split units in the group are sorted according to the power size, so that the sequence of cutting all the load split units is determined. Through the application, the different users can be classified in detail by calculating and sorting the matching comprehensive evaluation index of the users to the regional power supply, so that the fine load cutting operation of any capacity can be realized when the power grid system needs to cut the load, and the load cutting priority can be determined more comprehensively and scientifically.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power safety, and particularly relates to a same-type load sequence design method, device, equipment and storage medium. BACKGROUND

[0002] Load shedding refers to disconnecting part of loads from the power grid to maintain the power balance and stability of the power system in the event of an accident. The load shedding operation of the power load is an operation for maintaining the stability and power balance of the power grid. The operation process is to issue a load shedding instruction for some loads through an electrical secondary system, so as to disconnect the loads from the power grid, thereby reducing the overall load level of the power grid.

[0003] The existing load shedding related technical solutions mainly include two aspects. One is the structure design and data transmission mode design of the load shedding control system, and the other is the design of the load shedding strategy, that is, how to design the sequence of load shedding or the trigger condition of load shedding. Most of the existing technical solutions for the sequence design of load shedding classify the loads first, sort the importance of the loads of different categories, and design the load shedding sequence according to the importance. However, there is no perfect design for the load shedding strategy of the same type of load. The existing design is similar to the design based on user time fairness or economic loss, but the factors considered are less, and the differences between different load users in the same type of load are not fully considered. SUMMARY

[0004] The present application provides a same-type load sequence design method, device, equipment and storage medium, which aims to formulate a load shedding sequence and strategy with a single user level of accuracy for the same type of electrical load, and more comprehensively and scientifically determine the load shedding priority.

[0005] To this end, the first object of the present application is to provide a same-type load sequence design method, which comprises:

[0006] Splitting the same-type load to be studied to obtain a plurality of load splitting units of the lowest switch level;

[0007] Combining the plurality of load splitting units according to the annual load level to obtain a plurality of load aggregation groups; wherein each load aggregation group comprises one or more load splitting units;

[0008] Determining a matching degree comprehensive index value between each load aggregation group and a power supply, and sorting all the load aggregation groups according to the matching degree comprehensive index value from high to low;

[0009] For each load splitting unit within each load aggregation group after sorting, sort them according to their rated power to determine the cutting sequence for all load splitting units.

[0010] The step of combining multiple load sub-units based on the annual load level to obtain several load aggregation groups includes:

[0011] All load splitting units are freely combined in pairs to form combination pairs. Based on each combination pair, the power synchronization matching degree of the two load splitting units in the combination pair is calculated.

[0012] The calculated power synchronization matching degree is compared with a preset threshold. If the power synchronization matching degree is lower than the preset threshold, the load splitting units within the corresponding combination pair form an effective combination pair.

[0013] By calculating and comparing, all effective combination pairs are obtained. These effective combination pairs are then integrated to obtain several load aggregation groups.

[0014] The effective combination pairs are integrated according to the following principle: if the combination formed by the j-th load splitting unit and the k-th load splitting unit belongs to the same load aggregation group, and the combination formed by the p-th load splitting unit and the k-th load splitting unit belongs to the same load aggregation group, then the combination formed by the j-th load splitting unit and the p-th load splitting unit belongs to the same load aggregation group.

[0015] The power synchronization matching degree is calculated based on the average power value of the two load splitting units within the combined pair during a first specified time interval within a first preset time range.

[0016] The step of determining the comprehensive matching index value between each load aggregation group and the power supply includes:

[0017] Calculate the peak shifting degree between all loads and the power supply in each load aggregation group; the higher the peak shifting degree value, the higher the peak shifting degree, and the higher the corresponding load shedding priority.

[0018] Calculate the power stability value of all loads in each load aggregation group; the higher the power stability value, the lower the power stability, and the higher the corresponding load shedding priority.

[0019] The calculated peak shifting degree value and power consumption stability value are summed, and the result is used as the comprehensive matching degree index value.

[0020] The peak shifting degree value is determined based on the average power value of all load splitting units in the load aggregation group within the second preset time range of the second specified time interval, the average power value of the power supply within the second preset time range of the second specified time interval, the maximum power value of all load splitting units in the load aggregation group within the second preset time range of the second preset time range, and the maximum output power value of the power supply within the second preset time range of the second preset time range.

[0021] The power stability value is determined based on the maximum and minimum output power values ​​of all load splitting units in the load aggregation group within a second preset time range.

[0022] In the step of sorting by rated power to determine the cutting sequence of all load splitting units, the load splitting units within each load aggregation group are sorted in descending order of rated power. The higher the capacity, the later the load splitting order. Combining the sorting of the load aggregation group and the load splitting units within the group, a sorting of all load splitting units by rated power from high to low is formed, which is the required cutting sequence of the same type of load.

[0023] The second objective of this invention is to provide a sequence design device for the same type of load, comprising:

[0024] The splitting module is used to split the same type of load under study into multiple load splitting units with the lowest switching level;

[0025] The grouping module is used to combine multiple load splitting units based on the annual load level to obtain several load aggregation groups; wherein each load aggregation group includes one or more load splitting units;

[0026] The sorting module is used to determine the comprehensive matching index value between each load aggregation group and the power supply, and sort all load aggregation groups according to the comprehensive matching index value from high to low.

[0027] The sequence cutting module is used to sort each load splitting unit within each load aggregation group according to its rated power, and determine the sequence cutting for all load splitting units.

[0028] A third objective of the present invention is to provide an electronic device comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the steps of the method described above.

[0029] A fourth objective of this invention is to provide a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to cause a computer to perform the steps of the method according to the foregoing technical solution.

[0030] Unlike existing technologies, the load shedding sequence design method for similar loads provided by this invention, for any power grid area, determines the load shedding sequence for different users within the same type of load. The similar loads are split according to the lowest switching level. Based on the annual load level, the splitting results are grouped. The grouping results are then sorted by calculating a comprehensive matching index value. Finally, the load splitting units within each group are sorted by power size to determine the shedding sequence for all load splitting units. Through this invention, users can be finely classified by calculating and sorting the comprehensive evaluation index of the matching performance of different users with regional power sources. This allows for refined load shedding operations of any capacity when the power grid system needs to shed load, and a more comprehensive and scientific determination of load shedding priorities. Attached Figure Description

[0031] The present invention and / or its additional aspects and advantages will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0032] Figure 1 This is a flowchart illustrating a method for designing a cutting sequence for the same type of load provided by the present invention.

[0033] Figure 2 This is a logical schematic diagram of a cutting sequence design method for the same type of load provided by the present invention.

[0034] Figure 3 This is a schematic diagram of the device for a method and apparatus for designing a cutting sequence of the same type of load provided by the present invention.

[0035] Figure 4 This is a schematic diagram of the structure of a non-transitory computer-readable storage medium provided by the present invention. Detailed Implementation

[0036] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0037] like Figure 1 As shown, an embodiment of the present invention provides a method for designing a slicing sequence for the same type of load, comprising:

[0038] S110: The load of the same type under study is split into multiple load splitting units with the lowest switching level.

[0039] The "same type of load" mentioned in this invention refers to loads classified as the same type during load statistics in the electrical design phase. For example, the entire building's air conditioning load is considered the same type of load, while each independently switchable air conditioning load within the building is a subdivided unit at the lowest switching level. Figure 2 As shown, in an embodiment of the present invention, the loads of the same type to be studied are divided according to the above-described splitting method. n load splitting units are obtained.

[0040] S120: Based on the annual load level, multiple load splitting units are combined to obtain several load aggregation groups.

[0041] The process of grouping the load splitting unit in this invention is as follows:

[0042] All load splitting units are freely combined in pairs to form combination pairs. Based on each combination pair, the power synchronization matching degree of the two load splitting units in the combination pair is calculated.

[0043] Corresponding to n load splitting units, they are formed in a free combination form. For each load aggregation pair, it is determined whether each pair should belong to the same load aggregation group. Specifically, if the load splitting units in a certain load aggregation pair are load splitting unit j and load splitting unit k, the determination is made by calculating the power synchronization matching degree of load splitting unit j and load splitting unit k.

[0044] The power synchronization matching degree is calculated based on the average power value of the two load splitting units within the combined pair over a first specified time interval within a first preset time range. Specifically, the formula for calculating the power synchronization matching degree is shown in formula (1):

[0045]

[0046] In the formula, P j (l) represents the average power value of load splitting unit j in the lth hour out of a total of M hours per year, P k (l) represents the average power value of load splitting unit k in the l-th hour out of a total of M hours per year.

[0047] The calculated power synchronization matching degree is compared with a preset threshold. If the power synchronization matching degree is lower than the preset threshold, the load splitting units within the corresponding combination pair form an effective combination pair.

[0048] Specifically, the preset threshold is set to 0.05. If the power synchronization matching degree R(k,j) is less than or equal to 0.05, then the combination formed by load splitting unit j and load splitting unit k belongs to the same load aggregation group; otherwise, they do not belong to the same group.

[0049] By calculating and comparing, all effective combination pairs are obtained. These effective combination pairs are then integrated to obtain several load aggregation groups.

[0050] Among them, all valid combinations are integrated according to the following principle: if the combination formed by load splitting unit j and load splitting unit k belongs to the same load aggregation group, and the combination formed by load splitting unit p and load splitting unit k belongs to the same load aggregation group, then the combination formed by load splitting unit j and load splitting unit p belongs to the same load aggregation group.

[0051] S130: Determine the comprehensive matching index value between each load aggregation group and the power supply, and sort all load aggregation groups according to the comprehensive matching index value from high to low.

[0052] In this embodiment, calculating the comprehensive matching index value between each load aggregation group and the power supply includes the following steps:

[0053] Calculate the peak shifting degree between all loads and the power supply in each load aggregation group; the higher the peak shifting degree value, the higher the peak shifting degree, and the higher the corresponding load shedding priority.

[0054] The peak shifting degree value is determined based on the average power value of all load splitting units in the load aggregation group within the second preset time range of the second specified time interval, the average power value of the power supply within the second preset time range of the second specified time interval, the maximum power value of all load splitting units in the load aggregation group within the second preset time range of the second preset time range, and the maximum power value of the power supply within the second preset time range of the second preset time range.

[0055] The peak offset values ​​between all loads and the power supply in the load aggregation group are shown in formula (2):

[0056]

[0057] Where P i (l) represents the average power value of the i-th load aggregation group in the l-th hour out of a total of M hours per year, P imax S represents the maximum output power of the i-th load aggregation group over a total of M hours per year; i (l) represents the average output power of the power supply in the lth hour out of a total of M hours per year, S imax This represents the maximum output power of the power supply over a total of M hours per year.

[0058] Calculate the power stability value of all loads in each load aggregation group; the higher the power stability value, the lower the power stability, and the higher the corresponding load shedding priority.

[0059] The power stability value is determined based on the maximum and minimum output power values ​​of all load splitting units in the load aggregation group within a second preset time range.

[0060] The formula for the stability of load power consumption is expressed as formula (3):

[0061]

[0062] Among them, P imin Let be the minimum output power of the i-th load aggregation group in a total of M hours per year.

[0063] In this invention, both the first and second preset time ranges are set to M, with a value of 8760 days.

[0064] The calculated peak-shifting degree value and power consumption stability value are summed, and the result is used as the comprehensive matching degree index value, that is, the comprehensive matching degree evaluation index H. i Represented as:

[0065] H i =H i1 +H i2 (4)

[0066] S140: For each load splitting unit within each load aggregation group after sorting, sort them according to rated power to determine the cutting sequence for all load splitting units.

[0067] Based on the comprehensive evaluation index value of the matching degree calculated for each load aggregation group, all load aggregation groups are sorted, and the load splitting units within each sorted load aggregation group are further sorted. In this invention, the load splitting units within each load aggregation group are sorted by obtaining the rated power of each load splitting unit. In other embodiments, the load splitting units can also be sorted according to the load capacity, with higher capacity units being cut off later. Finally, the sorting of n load splitting units from high to low (i.e., from front to back) constitutes the required sequence for cutting off the same type of load.

[0068] like Figure 3 As shown, the present invention also provides a sequence design apparatus for the same type of load, comprising:

[0069] The splitting module 310 is used to split the same type of load under study to obtain multiple load splitting units with the lowest switching level.

[0070] Grouping module 320 is used to combine multiple load splitting units based on the annual load level to obtain several load aggregation groups; wherein each load aggregation group includes one or more load splitting units;

[0071] The sorting module 330 is used to determine the comprehensive matching index value between each load aggregation group and the power supply, and sort all load aggregation groups according to the order of the comprehensive matching index value from high to low.

[0072] The sequence cutting module 340 is used to sort each load splitting unit in each load aggregation group after sorting according to its rated power, and determine the sequence cutting for all load splitting units.

[0073] To implement the embodiments, the present invention also proposes an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the steps in the sequence design method for the same type of load of the aforementioned technical solution.

[0074] like Figure 4 As shown, the non-transitory computer-readable storage medium includes a memory 810 for instructions and an interface 830. The instructions can be executed by a processor 820 designed according to a sequence of similar workloads to complete the method. Optionally, the storage medium can be a non-transitory computer-readable storage medium, such as a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device.

[0075] To implement the embodiments, the present invention also proposes a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements a slicing sequence design of the same type of load as in the embodiments of the present invention.

[0076] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0077] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0078] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of preferred embodiments of the invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of the invention pertain.

[0079] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0080] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the described embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any of the following techniques known in the art, or a combination thereof: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0081] Those skilled in the art will understand that all or part of the steps of the method described in the embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0082] Furthermore, the functional units in the various embodiments of the present invention can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0083] The storage medium mentioned may be a read-only memory, a disk, or an optical disk, etc. Although embodiments of the present invention have been shown and described above, it is to be understood that the embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the embodiments within the scope of the present invention.

Claims

1. A method for designing sectional sequences for the same type of load, characterized in that, include: The load of the same type under study is split into multiple load splitting units with the lowest switching level; Based on the annual load level, multiple load splitting units are combined to obtain several load aggregation groups; wherein each load aggregation group includes one or more of the load splitting units; Determine the comprehensive matching index value between each load aggregation group and the power supply, and sort all the load aggregation groups in descending order of the comprehensive matching index value. For each load splitting unit within each load aggregation group after sorting, sort them according to rated power to determine the cutting sequence for all load splitting units; The step of combining multiple load splitting units based on the annual load level to obtain several load aggregation groups includes: All load splitting units are freely combined in pairs to form combination pairs. Based on each combination pair, the power synchronization matching degree of the two load splitting units in the combination pair is calculated. The calculated power synchronization matching degree is compared with a preset threshold. If the power synchronization matching degree is lower than the preset threshold, the load splitting units within the corresponding combination pair form an effective combination pair. By calculating and comparing, all effective combination pairs are obtained. These effective combination pairs are then integrated to obtain several load aggregation groups. The power synchronization matching degree is calculated based on the average power value of the two load splitting units within the combined pair over a first specified time interval within a first preset time range; The step of determining the comprehensive matching index value between each load aggregation group and the power supply includes: Calculate the peak shifting degree value between all loads in each load aggregation group and the power supply; wherein, the higher the peak shifting degree value, the higher the peak shifting degree, and the higher the corresponding load shedding priority; Calculate the power stability value of all loads in each load aggregation group; wherein, the higher the power stability value, the lower the power stability, and the higher the corresponding load shedding priority; The calculated peak shifting degree value and the power consumption stability value are summed, and the result is used as the comprehensive matching index value.

2. The method for designing sectional sequences of the same type of load according to claim 1, characterized in that, All the effective combinations are integrated according to the following principle: if the combination formed by the j-th load splitting unit and the k-th load splitting unit belongs to the same load aggregation group, and the combination formed by the p-th load splitting unit and the k-th load splitting unit belongs to the same load aggregation group, then the combination formed by the j-th load splitting unit and the p-th load splitting unit belongs to the same load aggregation group.

3. The method for designing sectional sequences of the same type of load according to claim 1, characterized in that, The peak shifting degree value is determined based on the average power value of all load splitting units in the load aggregation group within a second specified time interval in a second preset time range, the average power value of the power supply within a second specified time interval in a second preset time range, the maximum power value of all load splitting units in the load aggregation group within a second preset time range, and the maximum power value of the power supply within a second preset time range. The power stability value is determined based on the maximum and minimum output power values ​​of all load splitting units in the load aggregation group within a second preset time range.

4. The method for designing sectional sequences of the same type of load according to claim 1, characterized in that, In the step of sorting by rated power to determine the cutting sequence of all load splitting units, the load splitting units in each load aggregation group are sorted in descending order of rated power. The higher the capacity, the later the load is cut off. Combining the sorting of the load aggregation group and the load splitting units within the group, a sorting of all load splitting units in descending order of rated power is formed, which is the required cutting sequence of the same type of load.

5. A device for designing a slicing sequence for the same type of load, characterized in that, The apparatus implements the method as described in claim 1, the apparatus comprising: The splitting module is used to split the same type of load under study into multiple load splitting units with the lowest switching level; The grouping module is used to combine multiple load splitting units based on the annual load level to obtain several load aggregation groups; wherein each load aggregation group includes one or more of the load splitting units; The sorting module is used to determine the comprehensive matching index value between each load aggregation group and the power supply, and sort all the load aggregation groups in descending order of the comprehensive matching index value. The sequence-cutting module is used to sort each load splitting unit within each load aggregation group after sorting by rated power, and determine the sequence-cutting sequence for all load splitting units.

6. An electronic device, comprising: At least one processor; And a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the steps of the method according to any one of claims 1-4.

7. A non-transitory computer-readable storage medium storing computer instructions, wherein, The computer instructions are used to cause the computer to perform each step of the method according to any one of claims 1-4.

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