Load batch control method and device for power system, computer program product

Abstract

The application discloses a kind of load batch control method and device of power system, computer program product, wherein the method includes: obtaining the cuttable load resource pool of power system;In the case where receiving load scheduling task, determine the target cut-off load quantity needing to be cut in load scheduling task;By real-time monitoring to cuttable load resource pool, obtain the remaining cuttable load quantity of current cuttable load;Target cut-off load quantity and remaining cuttable load quantity are compared, and comparison result is obtained;According to comparison result, generate load control strategy to cuttable load;According to load control strategy, carry out load cut-off to power system, to complete load scheduling task.The present application solves the technical problem that the traditional load control method in the related art often focuses on extensive load cut-off, which may cause excessive influence on power users or misoperation, affecting normal power consumption of users.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power system distribution network, in particular, to a load batch control method and device of a power system, and a computer program product. BACKGROUND

[0002] In the operation and management of a power system, especially during peak load periods or emergency situations, orderly power utilization and rapid load shedding are key measures to ensure the safe and stable operation of the power grid. Traditional load control methods often focus on extensive load shedding, such as large-scale power cuts by region or by line. Although this approach can quickly respond to power supply and demand gaps, it lacks fine differentiation of load characteristics during execution, which may lead to excessive impact on civilian power and misoperation of power supply to important users and power protection users. At the same time, there are certain limitations in control efficiency and control accuracy.

[0003] In the prior art, load control usually relies on pre-set load shedding sequence tables. These sequence tables are often developed under power grid planning or normal operating conditions. However, in actual operation, the load distribution, user attributes, and device status of the power grid are dynamically changing. Therefore, load control based on static sequence tables may not accurately reflect the actual needs of the current power grid, thereby affecting control effectiveness and the safety of power grid operation.

[0004] In addition, existing load control methods also have deficiencies in data processing and information interaction. For example, the information transmission and collaborative control mechanism between provincial dispatching and local dispatching, and between local dispatching and centralized control systems is not perfect, leading to information delays in the development and execution of load control strategies, affecting the real-time and accuracy of control.

[0005] To address the issue of traditional load control methods often focusing on extensive load shedding, which may lead to excessive impact on power users or misoperation, affecting normal power utilization, no effective solutions have been proposed yet. SUMMARY

[0006] Embodiments of the present application provide a load batch control method and device of a power system, and a computer program product, to at least solve the technical problem of traditional load control methods in related technologies often focusing on extensive load shedding, which may lead to excessive impact on power users or misoperation, affecting normal power utilization.

[0007] According to an aspect of an embodiment of the present application, a load batch control method of a power system is provided, comprising: obtaining a cuttable load resource pool of the power system, wherein the cuttable load resource pool is used to analyze a cuttable load amount of a cuttable load from multiple dimensions, the cuttable load being a load that needs to be cut off or reduced in power supply when the power system is in a supply-demand imbalance state; in a case where a load scheduling task is received, determining a target cut-off load amount that needs to be cut off in the load scheduling task, wherein the load scheduling task refers to a task of cutting off the cuttable load to make the power system reach a supply-demand balance state; obtaining a remaining cuttable load amount of the cuttable load by monitoring the cuttable load resource pool in real time, wherein the remaining cuttable load amount refers to the cuttable load amount in the cuttable load resource pool that is not in a cut-off state at present; comparing the target cut-off load amount with the remaining cuttable load amount to obtain a comparison result; generating a load control strategy for the cuttable load according to the comparison result; and cutting off the load of the power system according to the load control strategy to complete the load scheduling task.

[0008] Optionally, the cuttable load resource pool of the power system comprises at least one of the following: main grid pull line sequence position information of the power system, a controllable switch in a distribution network, wherein the main grid pull line sequence position information is used to record the sequence of disconnecting lines when a load needs to be cut off or power adjusted in a main power grid, and the controllable switch in the distribution network refers to a controllable switch in a distribution network; load types, load levels, load attributes of power users supplied by the power system, and switch types of switch devices in the power system; station information, power supply area information, and contingency domain information of the power users and / or the switch devices, wherein the station information is used to record station information to which the power users and / or the switch devices belong, the power supply area information is used to record a power supply area that supplies power to the power users, and the contingency domain information is used to record a priority of the power users and / or the switch devices in a first specific power state to restore power use; and an executable sequence table of the power system, wherein the executable sequence table is used to record a control strategy for a load in a second specific power state.

[0009] Optionally, after obtaining the pool of sheddable load resources of the power system, the load batch control method of the power system further comprises: based on the pool of sheddable load resources, counting first sheddable load amounts of each power user under different load types in the power system; based on the pool of sheddable load resources, counting second sheddable load amounts of each power user under different load levels in the power system; based on the pool of sheddable load resources, counting third sheddable load amounts of each power user under different power supply strategies in the power system, wherein the power supply strategy refers to a strategy of supplying power to the power user in the power system; based on the pool of sheddable load resources, counting fourth sheddable load amounts of each power user under different resource scheduling levels in the power system; and taking the first sheddable load amount, the second sheddable load amount, the third sheddable load amount and the fourth sheddable load amount as the sheddable load amount obtained from multiple dimensions.

[0010] Optionally, comparing the target shed load amount with the remaining sheddable load amount to obtain a comparison result comprises: dividing the remaining sheddable load amount according to load levels to obtain a first remaining sheddable load amount and a second remaining sheddable load amount, wherein the first remaining sheddable load amount refers to the remaining sheddable load amount in the pool of sheddable load resources except for the sheddable load amount corresponding to a specific load level, and the second remaining sheddable load amount includes the first remaining sheddable load amount and the remaining sheddable load amount corresponding to a branch area not containing a specific power user, the specific power user refers to a power user with a higher electricity priority than a predetermined priority, and the specific load level refers to a load level corresponding to a load generated by the specific power user; comparing the first remaining sheddable load amount with the target shed load amount to obtain a first comparison result; comparing the second remaining sheddable load amount with the target shed load amount to obtain a second comparison result; and determining the first comparison result and the second comparison result as the comparison result.

[0011] Optionally, the load control strategy for the cuttable load is generated according to the comparison results, including: in a case where the first comparison result indicates that the first remaining cuttable load amount is not less than the target cut-off load amount, determining the load control strategy as: stopping power supply to the power users corresponding to the first remaining cuttable load amount; in a case where the first comparison result indicates that the first remaining cuttable load amount is less than the target cut-off load amount, and the second comparison result indicates that the second remaining cuttable load amount is not less than the target cut-off load amount, determining the load control strategy as: stopping power supply to the power users corresponding to the second remaining cuttable load amount; in a case where the second comparison result indicates that the second remaining cuttable load amount is less than the target cut-off load amount, determining the load control strategy as: stopping power supply to the power users connected to a specific feeder, wherein the specific feeder refers to a feeder whose impact on the power system after stopping power supply is lower than an impact threshold.

[0012] Optionally, the load batch control method of the power system further includes: in the process of load shedding of the power system according to the load control strategy, determining a target switch device to be disconnected according to the load control strategy; and sequentially performing a disconnection operation on the target switch device according to a load control sequence table to perform load shedding on the power system, wherein the load control sequence table includes a pre-set start device disconnection sequence.

[0013] Optionally, the load batch control method of the power system further includes: in a case where the load scheduling task only involves off-site switch devices, directly performing load scheduling by a first-level scheduling center, wherein the load scheduling task is a scheduling task issued by a second-level scheduling center to the first-level scheduling center, the second-level scheduling center is an upper-level scheduling center of the first-level scheduling center, and the off-site switch device refers to a switch device located outside a substation; and in a case where the load scheduling task involves on-site switch devices, controlling the first-level scheduling center to issue the load scheduling task to a centralized control system to perform load scheduling according to the load scheduling task by using the centralized control system, wherein the on-site switch device refers to a switch device located inside the substation, and the centralized control system is used to control power devices inside the substation.

[0014] According to another aspect of the embodiments of the present application, there is also provided a load batch control device of a power system, comprising: a first acquisition unit configured to acquire a pool of cuttable load resources of the power system, wherein the pool of cuttable load resources is configured to analyze a cuttable load amount of a cuttable load from multiple dimensions, the cuttable load being a load that needs to be cut off or have power supply reduced when the power system is in a supply-demand imbalance state; a first determination unit configured to, in a case where a load scheduling task is received, determine a target cut-off load amount that needs to be cut off in the load scheduling task, wherein the load scheduling task refers to a task of cutting off the cuttable load to make the power system reach a supply-demand balance state; a second acquisition unit configured to obtain a remaining cuttable load amount of the cuttable load by monitoring the pool of cuttable load resources in real time, wherein the remaining cuttable load amount refers to the cuttable load amount of the cuttable load that is not in a cut-off state in the pool of cuttable load resources; a third acquisition unit configured to compare the target cut-off load amount with the remaining cuttable load amount to obtain a comparison result; a generation unit configured to generate a load control strategy for the cuttable load according to the comparison result; and a first execution unit configured to cut off the load of the power system according to the load control strategy to complete the load scheduling task.

[0015] Optionally, the first acquisition unit comprises at least one of: a first acquisition module configured to acquire main grid pull sequence information and distribution network controllable switches of the power system, wherein the main grid pull sequence information is used to record a sequence of breaking a line when a load needs to be cut off or power adjusted in a main power grid, and the distribution network controllable switches refer to controllable switches in a distribution network; a second acquisition module configured to acquire load types, load levels, load attributes of power users supplied with power by the power system, and switch types of switch devices in the power system; a third acquisition module configured to acquire information of a station to which the power users and / or the switch devices belong, information of a power supply area to which the power users belong, and pre-plan domain information, wherein the information of the station to which the power users and / or the switch devices belong is used to record station information to which the power users and / or the switch devices belong, the power supply area information is used to record a power supply area that supplies power to the power users, and the pre-plan domain information is used to record a priority of the power users and / or the switch devices in a first specific power state to restore power use; and a fourth acquisition module configured to acquire an executable sequence table of the power system, wherein the executable sequence table is used to record a control strategy for a load in a second specific power state.

[0016] Optionally, the load batch control device of the power system further comprises: a first statistical unit configured to, after obtaining the pool of cuttable load resources of the power system, statistically determine first cuttable load amounts of each power user in the power system under different load types based on the pool of cuttable load resources; a second statistical unit configured to statistically determine second cuttable load amounts of each power user in the power system under different load levels based on the pool of cuttable load resources; a third statistical unit configured to statistically determine third cuttable load amounts of each power user in the power system under different power supply strategies based on the pool of cuttable load resources, wherein the power supply strategy refers to a strategy for supplying power to the power user in the power system; a fourth statistical unit configured to statistically determine fourth cuttable load amounts of each power user in the power system under different resource scheduling levels based on the pool of cuttable load resources; and a second determination unit configured to take the first cuttable load amounts, the second cuttable load amounts, the third cuttable load amounts and the fourth cuttable load amounts as the cuttable load amounts obtained from multiple dimensions.

[0017] Optionally, the third obtaining unit comprises: a fifth obtaining module configured to divide the remaining cuttable load amount according to load levels to obtain a first remaining cuttable load amount and a second remaining cuttable load amount, wherein the first remaining cuttable load amount refers to the remaining cuttable load amount in the pool of cuttable load resources except for the cuttable load amount corresponding to a specific load level, and the second remaining cuttable load amount comprises the first remaining cuttable load amount and the remaining cuttable load amount corresponding to a branch area not containing a specific power user, the specific power user refers to a power user with a higher electricity priority than a predetermined priority, and the specific load level refers to a load level corresponding to a load generated by the specific power user; a sixth obtaining module configured to compare the first remaining cuttable load amount with the target cut-off load amount to obtain a first comparison result; a seventh obtaining module configured to compare the second remaining cuttable load amount with the target cut-off load amount to obtain a second comparison result; and a first determination module configured to determine the first comparison result and the second comparison result as the comparison result.

[0018] Optionally, the generating unit comprises: a second determining module, configured to determine the load control strategy as stopping power supply to the power users corresponding to the first remaining cuttable load amount, in the case that the first comparison result indicates that the first remaining cuttable load amount is not less than the target cut load amount; a third determining module, configured to determine the load control strategy as stopping power supply to the power users corresponding to the second remaining cuttable load amount, in the case that the first comparison result indicates that the first remaining cuttable load amount is less than the target cut load amount, and the second comparison result indicates that the second remaining cuttable load amount is not less than the target cut load amount; and a fourth determining module, configured to determine the load control strategy as stopping power supply to the power users connected to a specific feeder, in the case that the second comparison result indicates that the second remaining cuttable load amount is less than the target cut load amount, wherein the specific feeder refers to a feeder whose influence on the power system after stopping power supply is lower than an influence threshold.

[0019] Optionally, the load batch control device of the power system further comprises: a third determining unit, configured to determine a target switch device to be disconnected according to the load control strategy during the process of load shedding of the power system according to the load control strategy; and a second executing unit, configured to sequentially execute a disconnection operation on the target switch device according to a load control sequence table to perform load shedding on the power system, wherein the load control sequence table comprises a pre-set disconnection sequence of switch devices.

[0020] Optionally, the load batch control device of the power system further comprises: a first scheduling unit, configured to directly perform load scheduling by a first level scheduling center in the case that the load scheduling task only involves off-site switch devices, wherein the load scheduling task is a scheduling task issued by a second level scheduling center to the first level scheduling center, the second level scheduling center is an upper level scheduling center of the first level scheduling center, and the off-site switch device refers to a switch device located outside a substation; and a second scheduling unit, configured to control the first level scheduling center to issue the load scheduling task to a centralized control system to perform load scheduling according to the load scheduling task by using the centralized control system in the case that the load scheduling task involves in-site switch devices, wherein the in-site switch device refers to a switch device located inside the substation, and the centralized control system is configured to control power devices inside the substation.

[0021] According to another aspect of the embodiments of the present application, a load batch control system of a power system is also provided, which uses any of the load batch control methods of the power system described above.

[0022] According to another aspect of the embodiments of the present application, a computer readable storage medium is also provided, which includes a stored program, wherein the program performs any of the load batch control methods of the power system as described above.

[0023] According to another aspect of the embodiments of the present application, a processor is also provided, which is used to run a program, wherein the program performs any of the load batch control methods of the power system as described above when running.

[0024] According to another aspect of the embodiments of the present application, a computer program product is also provided, which includes computer instructions, wherein the computer instructions perform any of the load batch control methods of the power system as described above when executed by a processor.

[0025] In the embodiments of the present application, a cuttable load resource pool of a power system is acquired, wherein the cuttable load resource pool is used to analyze the cuttable load amount of the cuttable load from multiple dimensions, the cuttable load refers to the load that needs to be cut off or reduced in power supply under the condition that the power system is in a supply-demand imbalance state; in the case that a load scheduling task is received, a target cut-off load amount that needs to be cut off in the load scheduling task is determined, wherein the load scheduling task refers to a task of cutting off the cuttable load to make the power system reach a supply-demand balance state; by monitoring the cuttable load resource pool in real time, a residual cuttable load amount of the current cuttable load is obtained, wherein the residual cuttable load amount refers to the cuttable load amount in the cuttable load resource pool that is not in a cut-off state at present; the target cut-off load amount and the residual cuttable load amount are compared to obtain a comparison result; a load control strategy for the cuttable load is generated according to the comparison result; and the power system is cut off according to the load control strategy to complete the load scheduling task. Through the above technical solution, the purpose of accurately generating a load control strategy for scheduling the load based on the cuttable load resource pool and the load scheduling task issued by the upper level, cutting off the load of the power system according to the control strategy, completing the load scheduling task, and ensuring the stable operation of the power system is achieved, the control strategy for controlling the load is accurately generated, and the control of the cuttable load is accurately realized according to the strategy, thereby avoiding the technical problem that the traditional load control method in the related art often focuses on extensive load cutting off, which may cause excessive influence on the power users or misoperation, and affects the normal power consumption of the users. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application. In the drawings:

[0027] Figure 1Figure 1 is a hardware structure block diagram of a mobile terminal of a load batch control method of a power system according to an embodiment of the present application;

[0028] Figure 2 Figure 2 is a flow chart of a load batch control method of a power system according to an embodiment of the present application;

[0029] Figure 3 Figure 3 is a flow chart of an optional load batch control method of a power system according to an embodiment of the present application;

[0030] Figure 4 Figure 4 is a schematic diagram of a load batch control device of a power system according to an embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to make the personnel in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

[0032] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0033] As introduced in the background, the traditional load control method in the related art often focuses on extensive load shedding, which may cause excessive influence on power users or misoperation, affecting normal power consumption of the users. In view of the above defects, a load batch control method and device of a power system, and a computer program product are provided in the embodiments of the present application.

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application.

[0035] The method embodiments provided in the embodiments of the present invention can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 FIG is a hardware structure block diagram of a mobile terminal for a load batch control method of a power system according to an embodiment of the present invention. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1 Only one is shown) a processor 102 (the processor 102 may include but is not limited to a microprocessor MCU or a programmable logic device FPGA and other processing devices) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input and output device 108 for communication functions. It will be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components than shown, or with Figure 1 Different configurations shown.

[0036] Memory 104 can be used to store computer programs, such as software programs and modules of application software, such as the computer program corresponding to the load batch control method for a power system in an embodiment of the present invention. Processor 102 executes the computer programs stored in memory 104 to perform various functional applications and data processing, thereby implementing the aforementioned method. Memory 104 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, memory 104 may further include memory remote from processor 102, which can be connected to the mobile terminal via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof. Transmission device 106 is used to receive or transmit data via a network. Specific examples of such networks may include a wireless network provided by the mobile terminal's telecommunications provider. In one example, transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to enable communication with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0037] According to the embodiment of the present application, a method embodiment of the load batch control method of the power system is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described herein can be executed in a different order.

[0038] Figure 2 is a flowchart of the load batch control method of the power system according to the embodiment of the present application, as shown in Figure 2 , the method comprises the following steps:

[0039] In step S202, the load shedding resource pool of the power system is obtained, wherein the load shedding resource pool is used to analyze the load shedding amount of the load shedding from multiple dimensions, and the load shedding refers to the load that needs to be cut off or reduced in power supply under the condition that the power system is in a supply-demand imbalance state.

[0040] In this embodiment, the load shedding resource pool of the power system can be obtained to control the load of the power system in batches based on the load shedding resource pool.

[0041] It should be noted that the supply-demand imbalance state here refers to the case that the power demand exceeds the supply capacity in the power system, resulting in insufficient power supply, which may cause unstable operation of the power system, and even power failure and other problems.

[0042] The above embodiments of the present application will be described in detail below, Figure 3 The above embodiments of the present application will be described in detail below, Figure 3 is a flowchart of the load batch control method of the power system according to the embodiment of the present application.

[0043] According to the above embodiments of the present application, in the above step S202, the load shedding resource pool of the power system is obtained, at least one of the following: obtaining the main grid pull line sequence position information of the power system, the controllable switch of the distribution network, wherein the main grid pull line sequence position information is used to record the sequence of disconnecting the line when the load needs to be adjusted or cut off in the main power grid, and the controllable switch of the distribution network refers to the controllable switch in the distribution network; obtaining the load type, load level, load attribute of the power user supplied by the power system and the switch type of the switch device in the power system; obtaining the information of the station to which the power user and / or switch device belongs, the information of the power supply area to which the power user and / or switch device belongs, and the preplan domain information, wherein the information of the station to which the power user and / or switch device belongs is used to record the station information to which the power user and / or switch device belongs, the power supply area information is used to record the power supply area of the power user, and the preplan domain information is used to record the priority of the power user and / or switch device in the first specific power state to restore power; obtaining the executable sequence table of the power system, wherein the executable sequence table is used to record the control strategy of the load in the second specific power state.

[0044] As shown above Figure 3 The cuttable load resource pool of the power system includes various data information in the distribution network, and needs to be maintained, including maintenance of model data such as main network pull line sequence information, distribution network controllable switch, and load type. A sequence table maintenance management tool is provided, and independent model maintenance permission is supported. The maintenance information includes sequence name, sequence type, control switch name, control priority, belonging power supply area, belonging power station, belonging main transformer, belonging bus, belonging feeder, belonging distribution transformer (filled when the control switch is a low-voltage distribution network switch), belonging main network switch (filled when the control switch is a distribution network switch), load type (including industrial / residential / commercial users), load level (first / second / special / important / livelihood), switch type (special line / special transformer / whole line / segment / branch / junction), and other important information. Classification can also be performed from multiple dimensions: 1) classification according to sequence table type, control according to sequence table round and sorting rule; 2) fine classification according to load type, such as industrial users, commercial users, and residential users, to develop different levels of pull limit power strategies according to load properties; 3) for off-site switches, fine classification according to switch type, such as junction switch, branch switch, segment switch, and outgoing line switch, to generate strategies according to junction, branch, segment, and whole feeder classification; and 4) fine classification according to load level, such as important users, power protection users, first-level load, second-level load, and third-level load, to control the load shedding strategy according to load level priority.

[0045] According to the above embodiment of the present application, after the step S202, after obtaining the cuttable load resource pool of the power system, the load batch control method of the power system further includes: based on the cuttable load resource pool, statistics the first cuttable load amount of each power user under different load types in the power system; based on the cuttable load resource pool, statistics the second cuttable load amount of each power user under different load levels in the power system; based on the cuttable load resource pool, statistics the third cuttable load amount of each power user under different power supply strategies in the power system, wherein the power supply strategy refers to the strategy of supplying power to the power user in the power system; based on the cuttable load resource pool, statistics the fourth cuttable load amount of each power user under different resource scheduling levels in the power system; and taking the first cuttable load amount, the second cuttable load amount, the third cuttable load amount and the fourth cuttable load amount as the cuttable load amount obtained from multiple dimensions.

[0046] In this embodiment, the cuttable load resource pool can also be monitored in real time to understand the total amount of cuttable load, the current state of each cuttable load, and the remaining available cuttable load amount in the cuttable load resource pool in real time.

[0047] Specifically, the ground station monitors the information of the cuttable load state, cuttable amount, etc. in real time, and performs statistical analysis of the load capacity from multiple dimensions such as load properties, switch properties, and region size. The cuttable load amount in the cuttable load resource pool can be counted from multiple dimensions: 1) according to the load types such as industrial users, commercial users, and residential users; 2) according to the load levels such as important users, power protection users, first-level load, second-level load, and third-level load; 3) according to the dimensions such as the station to which the user belongs, the power supply area to which the user belongs, and the plan domain; and 4) according to the round of the executable sequence table, the region to which the user belongs, the main grid resource, and the distribution network resource. The above supports the calculation and update of the cuttable load resource pool every 15 minutes (which can be manually maintained). Of course, the time period can also be selected as another time period for maintenance and update according to the actual situation, which is not limited here. The cuttable load resource pool is monitored and warned, and the current power grid state and operation mode are comprehensively considered to monitor the running state of the load in the cuttable resource pool in real time, including voltage, current, active power, reactive power, power factor, control times, etc. The total amount of cuttable load resources, the remaining cuttable amount, the execution target and deviation, and the total amount of non-livelihood and livelihood cuttable resources are also monitored and warned online. After receiving the pressure drop target from the upper level, the ground station evaluates the pressure drop capacity according to the capacity of the cuttable load pool, and gives a timely warning when the cuttable load pool cannot achieve the pressure drop target. The load shedding of important and power protection users during the execution process is monitored and warned.

[0048] Step S204, in the case of receiving a load scheduling task, determining the target cut-off load amount that needs to be cut off in the load scheduling task, wherein the load scheduling task refers to a task of cutting off the cuttable load to make the power system reach a supply-demand balance state.

[0049] In this embodiment, in the case of receiving a load scheduling task, the load amount that needs to be cut off (i.e. the target cuttable load amount) can be determined according to the load scheduling task.

[0050] It should be noted that the load scheduling task here can be issued by the provincial dispatching center (i.e. the first level dispatching center in the embodiment of the application) to the prefectural dispatching center (i.e. the second level dispatching center in the embodiment of the application), and then issued by the prefectural dispatching center to the dispatching task of the centralized control system, so as to better realize the collaborative control between the dispatching centers at different levels; after receiving the load pressure reduction task issued by the upper level dispatching center, the prefectural dispatching center (prefectural dispatching center) acquires the current power of the load in the load resource pool in real time, combines the feeder attribute and the user type, generates a load batch control sequence table according to the rules of the least number of control switches, the least number of control times, the load from large to small, and the load level from low to high, so as to achieve the control target precision. The control strategy generation supports the strategy generation according to the sequence table specified sequence, the load attribute priority, and the load quantity value size algorithm.

[0051] It should be noted that the supply-demand balance state here is a state that can ensure stable operation of the system, sufficient power supply, and good load balance.

[0052] In step S206, the remaining cuttable load quantity of the current cuttable load is obtained by real-time monitoring of the cuttable load resource pool, wherein the remaining cuttable load quantity refers to the cuttable load quantity in the cuttable load resource pool that is not in the cut-off state.

[0053] In this embodiment, through real-time monitoring of the cuttable load resource pool, the current remaining cuttable load quantity (i.e. the remaining cuttable load quantity) in the cuttable load resource pool can be obtained, that is, the cuttable load quantity in the cuttable load resource pool that is not in the cut-off state.

[0054] In step S208, the target cut-off load quantity is compared with the remaining cuttable load quantity to obtain a comparison result.

[0055] In this embodiment, the target cuttable load quantity (i.e. the cuttable load quantity that needs to be cut off to complete the load scheduling task) can be compared with the remaining cuttable load quantity (i.e. the current remaining cuttable load quantity in the cuttable load resource pool) to obtain a comparison result, so as to accurately control the load based on the comparison result.

[0056] According to the above embodiment of the present application, in the step S208, the target cut-off load amount is compared with the residual cut-off load amount to obtain a comparison result, including: dividing the residual cut-off load amount according to load grades to obtain a first residual cut-off load amount and a second residual cut-off load amount, wherein the first residual cut-off load amount refers to the residual cut-off load amount in the cut-off load resource pool except for the cut-off load amount corresponding to a specific load grade, and the second residual cut-off load amount includes the first residual cut-off load amount and the residual cut-off load amount corresponding to a branch area not containing a specific power user, the specific power user refers to a power user with a higher priority than a predetermined priority, and the specific load grade refers to the load grade corresponding to the load generated by the specific power user; comparing the first residual cut-off load amount with the target cut-off load amount to obtain a first comparison result; comparing the second residual cut-off load amount with the target cut-off load amount to obtain a second comparison result; and determining the first comparison result and the second comparison result as the comparison result.

[0057] Specifically, the residual cut-off load amount can be divided according to load grades, and the load required by dedicated lines, dedicated transformers, non-living, non-protected power and non-important users can be divided into the first residual cut-off load amount, and the load required by the power users in the large branch without important users and protected power users and the load including the first residual cut-off load amount are divided into the second residual cut-off load amount; then the first residual cut-off load amount and the second residual cut-off load amount are compared with the target cut-off load amount in turn to obtain the comparison result, and the comparison result obtained here includes the first comparison result obtained by comparing the first residual cut-off load amount with the target cut-off load amount and the second comparison result obtained by comparing the second residual cut-off load amount with the target cut-off load amount.

[0058] In step S210, a load control strategy for the cut-off load is generated according to the comparison result.

[0059] In this embodiment, as shown above, Figure 3 the corresponding load control strategy can be generated according to the comparison result to control the cut-off load correspondingly, so as to realize the balance between supply and demand of the power system and make the power system operate stably.

[0060] According to the above embodiment of the present application, in the step S210, the load control strategy for the load shedding is generated according to the comparison results, including: in the case that the first comparison result indicates that the first remaining load shedding amount is not less than the target load shedding amount, determining the load control strategy as: stopping power supply to the power users corresponding to the first remaining load shedding amount; in the case that the first comparison result indicates that the first remaining load shedding amount is less than the target load shedding amount, and the second comparison result indicates that the second remaining load shedding amount is not less than the target load shedding amount, determining the load control strategy as: stopping power supply to the power users corresponding to the second remaining load shedding amount; in the case that the second comparison result indicates that the second remaining load shedding amount is less than the target load shedding amount, determining the load control strategy as: stopping power supply to the power users connected to the specific feeder, wherein the specific feeder refers to the feeder whose influence on the power system after stopping power supply is lower than the influence threshold.

[0061] Specifically, the general principle of the precise load batch control strategy is to preferentially consider limiting power supply to the special line, special transformer, non-living, non-protected power, and non-important users; when the pressure drop index (here, the pressure drop index refers to the load amount to be cut off to complete the load dispatching task) cannot be reached, consider large branches without important users and protected power users; when the pressure drop index still cannot be reached, consider feeder segmentation or whole-line power outage; that is, in the case that the first comparison result indicates that the first remaining load shedding amount is not less than the target load shedding amount, limiting power supply to the special line, special transformer, non-living, non-protected power, and non-important users; in the case that the first comparison result indicates that the first remaining load shedding amount is less than the target load shedding amount, and the second comparison result indicates that the second remaining load shedding amount is not less than the target load shedding amount, continuing to stop power supply to the large branches without important users and protected power users; if the pressure drop index still cannot be reached, that is, in the case that the second comparison result indicates that the second remaining load shedding amount is less than the target load shedding amount, considering feeder segmentation or whole-line power outage.

[0062] In step S212, the load shedding of the power system is performed according to the load control strategy to complete the load dispatching task.

[0063] In this embodiment, the load shedding of the power system can be performed according to the load control strategy obtained in the above steps to complete the load dispatching task and make the power system operate stably.

[0064] According to the above embodiment of the present application, the load batch control method of the power system further includes: in the process of performing the load shedding of the power system according to the load control strategy, determining the switch device to be disconnected as a target switch device according to the load control strategy; and performing the disconnection operation on the target switch device in sequence according to the load control sequence table to perform the load shedding of the power system, wherein the load control sequence table includes a pre-set switch device disconnection sequence.

[0065] Specifically, in the process of load shedding of the power system according to the load control strategy, the line can be automatically selected according to the control load target value input by the user, and the equipment that does not meet the requirements can be automatically excluded, and the filtering conditions include but are not limited to the current state consistent with the control target, remote control prohibited, working condition exit, double-bit error, etc.; support multiple load selection strategies, use switch real-time load as the basis for calculation, and the total load amount selected according to the strategy is not less than the target control load amount; the selection strategy includes but is not limited to load priority strategy, load selection strategy from large to small, load selection strategy from small to large, and load selection strategy from small to large.

[0066] For off-site switches, control selection is performed from a pre-defined load batch control sequence table; for off-site switches, the load shedding task (i.e. the task of cutting off the load to achieve power supply and demand balance of the power system) can be generated according to the target load capacity (target load shedding amount) and the sequence strategy, and the management control process (including pull strategy issuance, confirmation, and execution result feedback) is implemented to realize the rapid batch cutting of boundary, branch, section, feeder, special line, and special transformer switch, and to meet the requirements of power grid fault handling in emergency situations; support control sequence manual correction function, which can manually intervene and adjust the final control sequence based on automatic selection sequence. When the device involved in the control of the distribution network inventory device, the remote control instruction is issued to the system where the distribution network inventory device is located, and the system where the distribution network inventory device is located is coordinated to complete the control. In the control process, the control progress, control results and other information are monitored.

[0067] For on-site switches, the load shedding instruction containing specific sequence information is sent to the centralized control system side, and the switch control is performed by the centralized control system, and the control result is fed back to the main distribution integrated system in real time; for off-site switches, the remote control instruction is issued for direct control, and the control result is monitored in real time during the control process; the total control result data of each round is statistically analyzed in real time during the control process, including the total load control amount and the control load proportion; after the control is completed, the success of the switch operation in this round and the load shedding amount are statistically analyzed, and if there are control failure switches and the load shedding amount does not meet the target capacity, it will be prompted whether to enter the supplementary cutting operation, and the interface automatically returns to the sequence selection state after manual / automatic confirmation of the need for supplementary cutting operation. The supplementary cutting amount is the difference between the last round of load shedding amount and the target capacity, and the control failure switches are automatically excluded until the load shedding capacity meets the requirements; when the selected switches in the strategy are controlled, the pressure drop index still cannot be met, and the superior dispatching system is reported, and the superior dispatching system re-allocates the lack of pressure drop index.

[0068] In addition, the control mode for controlling the load supports batch remote control and sequential remote control; 1) the batch remote control is executed in the mode of "same station / ring network cabinet sequential execution, different station / ring network cabinet parallel execution", which meets the requirements of rapidness and safety. The switches of the same station / ring network cabinet are sequentially executed one by one, and the same terminal device cannot be controlled simultaneously, so as to avoid the situation that the misoperation of multiple instructions in parallel operation causes misoperation of switches; the switches of different stations / ring network cabinets can be operated in parallel, thereby reducing the waiting time; 2) the sequential remote control is executed in the mode of sequentially executing according to the selected switch sequence, and after each switch completes the presetting and execution, the next switch is executed, but when the presetting or execution of the switch fails, the switch is automatically skipped, and the control state of the switch is set to be uncontrollable, and the emergency stop operation is supported, so as to meet the operation of emergency stop control execution in abnormal conditions.

[0069] In an optional embodiment of the present application, the load batch control method of the power system further comprises: in the case that the load scheduling task only involves the off-site switch device, directly scheduling the load by the first-level scheduling center, wherein the load scheduling task is a scheduling task issued by the second-level scheduling center to the first-level scheduling center, the second-level scheduling center is the upper-level scheduling center of the first-level scheduling center, and the off-site switch device refers to the switch device located outside the substation; in the case that the load scheduling task involves the in-station switch device, controlling the first-level scheduling center to issue the load scheduling task to the centralized control system, so as to schedule the load according to the load scheduling task by the centralized control system, wherein the in-station switch device refers to the switch device located inside the substation, and the centralized control system is used for controlling the power equipment inside the substation.

[0070] Specifically, as described above Figure 3As shown, in the process of batch control of load, the coordinated control interaction between the scheduling centers of each level can also be realized. The coordinated control interaction mode is as follows: 1) province-region coordination: the main distribution integrated system sends the total amount of load that can be cut in the region to the provincial scheduling center in real time, the provincial scheduling center has a load cut target decomposition function, distributes the total cut amount to each region, and issues it to the main distribution integrated system of each region; the main distribution integrated system receives the load control target value issued by the provincial regulation and control mechanism, and starts the load batch control function of the system according to the target value; the main distribution integrated system can upload the total amount of load cut by the current control sequence to the provincial scheduling center in real time when executing the load batch control; 2) coordination between local dispatching and centralized control: when the control involves on-site switches, the load batch control sequence is issued to the centralized control system, and the centralized control system completes the control in coordination, and during the control process, the centralized control system feeds back the switch execution result to the main distribution integrated system in real time, so as to facilitate the main distribution integrated system to monitor the control progress, control result and other information. There is a difference between the equipment ID of the main distribution integrated system and the centralized control system, so a mapping table is needed for correspondence, and the mapping table is maintained by the centralized control system, and when the load batch sequence table of the main distribution integrated system changes, it is actively pushed to the centralized control system; when performing load batch control, the main distribution integrated system transmits the load batch control sequence to the centralized control system for analysis and correspondence through the mapping table and sequence table checking, and then the centralized control system precise load batch control module processes; the centralized control system supports the controlled device information synchronization function, and synchronizes the device hanging card, control lockout and other information to the main distribution integrated system in real time as the line selection filtering condition.

[0071] In addition, the load batch control system provided by the embodiment of the present application which can use the load batch control method also provides a historical query function, which can use the historical query interface to display the precise load batch control historical results according to the conditions of time range, power cut type (sequence table type executed) and the like. The results include control user, control node, control mode (test state, preset state, execution state), target load, execution capacity, cut load capacity, execution time, detailed device remote control result and the like.

[0072] From the above, the technical scheme provided by the above embodiments of the application can obtain a cuttable load resource pool of a power system, wherein the cuttable load resource pool is used to analyze the cuttable load amount of a cuttable load from multiple dimensions, the cuttable load refers to a load that needs to be cut off or reduced in power supply under the condition that the power system is in a supply-demand imbalance state; in the case of receiving a load scheduling task, the target cut-off load amount in the load scheduling task that needs to be cut off is determined, wherein the load scheduling task refers to a task of cutting off the cuttable load to make the power system reach a supply-demand balance state; by monitoring the cuttable load resource pool in real time, the remaining cuttable load amount of the current cuttable load is obtained, wherein the remaining cuttable load amount refers to the cuttable load amount in the cuttable load resource pool that is not in a cut-off state at present; the target cut-off load amount and the remaining cuttable load amount are compared to obtain a comparison result; a load control strategy for the cuttable load is generated according to the comparison result; and the power system is cut off according to the load control strategy to complete the load scheduling task, which achieves the purpose of accurately generating a load control strategy for scheduling the load based on the cuttable load resource pool and the load scheduling task issued by the upper level, cutting off the load of the power system according to the control strategy, completing the load scheduling task, and ensuring the stable operation of the power system, realizes the technical effect of accurately generating a control strategy for controlling the load, and accurately controlling the cuttable load according to the strategy to avoid resource waste.

[0073] Therefore, the technical scheme provided by the above embodiments of the application solves the technical problem that the traditional load control method in the related art often focuses on extensive load cutting, which may cause excessive influence on power users or misoperation, and affects normal power consumption of users.

[0074] It should be noted that, for the foregoing method embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the application is not limited to the action sequence described, because according to the application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the application.

[0075] Those skilled in the art can clearly understand that the method according to the above-mentioned embodiments can be realized by means of software and necessary general hardware platforms, of course, can also be realized by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes a plurality of instructions for causing a terminal device (which can be a mobile phone, computer, server, or network device) to execute the method described in each embodiment of the present application.

[0076] According to the embodiments of the present application, a load batch control device of a power system is also provided for implementing the load batch control method of the power system. Figure 4 is a schematic diagram of the load batch control device of the power system according to the embodiments of the present application, as shown in Figure 4 The device includes a first acquisition unit 401, a first determination unit 403, a second acquisition unit 405, a third acquisition unit 407, a generation unit 409, and a first execution unit 411. The load batch control device of the power system will be described in detail below.

[0077] The first acquisition unit 401 is configured to acquire a cuttable load resource pool of the power system, wherein the cuttable load resource pool is used to analyze the cuttable load amount of the cuttable load from multiple dimensions, and the cuttable load refers to a load that needs to be cut off or reduced in power supply when the power system is in a supply-demand imbalance state.

[0078] The first determination unit 403 is configured to determine a target cut-off load amount that needs to be cut off in a load scheduling task in a case where the load scheduling task is received, wherein the load scheduling task refers to a task of cutting off the cuttable load to make the power system reach a supply-demand balance state.

[0079] The second acquisition unit 405 is configured to obtain a remaining cuttable load amount of the current cuttable load by monitoring the cuttable load resource pool in real time, wherein the remaining cuttable load amount refers to the cuttable load amount of the cuttable load that is not in a cut-off state in the cuttable load resource pool.

[0080] The third acquisition unit 407 is configured to compare the target cut-off load amount with the remaining cuttable load amount to obtain a comparison result.

[0081] The generation unit 409 is configured to generate a load control strategy for the cuttable load according to the comparison result.

[0082] The first execution unit 411 is configured to cut off the load of the power system according to the load control strategy to complete the load scheduling task.

[0083] It should be noted that the first acquisition unit 401, the first determination unit 403, the second acquisition unit 405, the third acquisition unit 407, the generation unit 409 and the first execution unit 411 correspond to steps S202 to S212 in the above embodiment, and the six units and the corresponding steps have the same instances and application scenarios, but are not limited to the content disclosed in the above embodiment.

[0084] As can be seen from the above, in the scheme described in the above embodiment, the first acquisition unit can be used to acquire a load shedding resource pool of a power system, wherein the load shedding resource pool is used to analyze the load shedding amount of the load shedding from multiple dimensions, and the load shedding refers to the load that needs to be cut off or reduced in power supply under the condition that the power system is in a supply-demand imbalance state; then the first determination unit is used to determine the target cut-off load amount that needs to be cut off in the load scheduling task in the case of receiving the load scheduling task, wherein the load scheduling task refers to a task of cutting off the load shedding to make the power system reach a supply-demand balance state; then the second acquisition unit is used to obtain the remaining load shedding amount of the current load shedding by monitoring the load shedding resource pool in real time, wherein the remaining load shedding amount refers to the load shedding amount in the load shedding resource pool that is not in the cut-off state; then the third acquisition unit is used to compare the target cut-off load amount with the remaining load shedding amount to obtain a comparison result; then the generation unit is used to generate a load control strategy for the load shedding according to the comparison result; finally, the first execution unit is used to cut off the load of the power system according to the load control strategy to complete the load scheduling task, which achieves the purpose of accurately generating a load control strategy for scheduling the load based on the load shedding resource pool and the load scheduling task issued by the upper level, cutting off the load of the power system according to the control strategy, completing the load scheduling task, and ensuring the stable operation of the power system, realizes the accurate generation of the control strategy for controlling the load, and accurately controls the load shedding according to the strategy, thereby achieving the technical effect of avoiding resource waste.

[0085] Therefore, the technical scheme provided in the above embodiment of the present application solves the technical problem that the traditional load control method in the related art often focuses on extensive load cutting, which may cause excessive influence on power users or misoperation, and affects normal power use of users.

[0086] Optionally, the first obtaining unit comprises at least one of: a first obtaining module configured to obtain main grid line sequence position information and distribution network controllable switch of the power system, wherein the main grid line sequence position information is used to record the sequence of disconnecting lines when power adjustment or load removal is needed in the main power grid, and the distribution network controllable switch refers to a controllable switch in the distribution network; a second obtaining module configured to obtain load type, load level, load attribute of the power user supplied by the power system, and switch type of the switch device in the power system; a third obtaining module configured to obtain station information, power supply area information and pre-plan domain information of the power user and / or the switch device, wherein the station information is used to record the station information to which the power user and / or the switch device belongs, the power supply area information is used to record the power supply area of the power user, and the pre-plan domain information is used to record the priority of the power user and / or the switch device in the first specific power state to restore power; and a fourth obtaining module configured to obtain an executable sequence table of the power system, wherein the executable sequence table is used to record the control strategy of the load in the second specific power state.

[0087] Optionally, the load batch control device of the power system further comprises: a first statistical unit configured to, after obtaining the cuttable load resource pool of the power system, statistically obtain the first cuttable load amount of each power user in different load types in the power system based on the cuttable load resource pool; a second statistical unit configured to statistically obtain the second cuttable load amount of each power user in different load levels in the power system based on the cuttable load resource pool; a third statistical unit configured to statistically obtain the third cuttable load amount of each power user in different power supply strategies in the power system based on the cuttable load resource pool, wherein the power supply strategy refers to the strategy of supplying power to the power user in the power system; a fourth statistical unit configured to statistically obtain the fourth cuttable load amount of each power user in different resource scheduling levels in the power system based on the cuttable load resource pool; and a second determination unit configured to take the first cuttable load amount, the second cuttable load amount, the third cuttable load amount and the fourth cuttable load amount as the cuttable load amount obtained from multiple dimensions.

[0088] Optionally, the third obtaining unit comprises: a fifth obtaining module, configured to divide the remaining sheddable load amount according to load levels to obtain a first remaining sheddable load amount and a second remaining sheddable load amount, wherein the first remaining sheddable load amount refers to the remaining sheddable load amount in the sheddable load resource pool except for the sheddable load amount corresponding to a specific load level, and the second remaining sheddable load amount comprises the first remaining sheddable load amount and the remaining sheddable load amount corresponding to a branch area not containing a specific power user, the specific power user refers to a power user with a higher priority than a predetermined priority, and the specific load level refers to a load level corresponding to the load generated by the specific power user; a sixth obtaining module, configured to compare the first remaining sheddable load amount with the target shed load to obtain a first comparison result; a seventh obtaining module, configured to compare the second remaining sheddable load amount with the target shed load to obtain a second comparison result; and a first determining module, configured to determine the first comparison result and the second comparison result as comparison results.

[0089] Optionally, the generating unit comprises: a second determining module, configured to, in a case where the first comparison result indicates that the first remaining sheddable load amount is not less than the target shed load, determine the load control strategy as stopping power supply to power users corresponding to the first remaining sheddable load amount; a third determining module, configured to, in a case where the first comparison result indicates that the first remaining sheddable load amount is less than the target shed load and the second comparison result indicates that the second remaining sheddable load amount is not less than the target shed load, determine the load control strategy as stopping power supply to power users corresponding to the second remaining sheddable load amount; and a fourth determining module, configured to, in a case where the second comparison result indicates that the second remaining sheddable load amount is less than the target shed load, determine the load control strategy as stopping power supply to power users connected to a specific feeder, wherein the specific feeder refers to a feeder with an influence degree on the power system lower than an influence degree threshold after stopping power supply.

[0090] Optionally, the load batch control device of the power system further comprises: a third determining unit, configured to, in a process of performing load shedding on the power system according to the load control strategy, determine, according to the load control strategy, a switch device that needs to be disconnected as a target switch device; and a second executing unit, configured to perform a disconnection operation on the target switch device in sequence according to a load control sequence table to perform load shedding on the power system, wherein the load control sequence table comprises a pre-set disconnection sequence of switch devices.

[0091] Optionally, the load batch control device of the power system further comprises: a first scheduling unit, configured to directly perform load scheduling by the first-level scheduling center in a case that the load scheduling task only involves off-station switch devices, wherein the load scheduling task is a scheduling task issued by the second-level scheduling center to the first-level scheduling center, the second-level scheduling center is an upper-level scheduling center of the first-level scheduling center, and the off-station switch devices refer to switch devices located outside the substation; and a second scheduling unit, configured to control the first-level scheduling center to issue the load scheduling task to the centralized control system in a case that the load scheduling task involves in-station switch devices, so as to perform load scheduling by the centralized control system according to the load scheduling task, wherein the in-station switch devices refer to switch devices located inside the substation, and the centralized control system is configured to control power devices inside the substation.

[0092] According to another aspect of the embodiments of the present application, there is also provided a load batch control system of a power system, which uses any of the load batch control methods of the power system.

[0093] According to another aspect of the embodiments of the present application, there is also provided a computer-readable storage medium comprising a stored program, wherein the program executes any of the load batch control methods of the power system.

[0094] Optionally, in the present embodiment, the computer-readable storage medium can be located in any of the computer terminals in the computer terminal group in the computer network, or in any of the communication devices in the communication device group.

[0095] Optionally, in the present embodiment, the computer-readable storage medium is configured to store program code for performing the following steps: obtaining a pool of cuttable load resources of the power system, wherein the pool of cuttable load resources is used to analyze the cuttable load amount of the cuttable load from multiple dimensions, and the cuttable load refers to a load that needs to be cut off or reduced in power supply in a case that the power system is in a supply-demand imbalance state; in a case that a load scheduling task is received, determining a target cut-off load amount that needs to be cut off in the load scheduling task, wherein the load scheduling task refers to a task of cutting off the cuttable load to make the power system reach a supply-demand balance state; obtaining a remaining cuttable load amount of the current cuttable load by monitoring the pool of cuttable load resources in real time, wherein the remaining cuttable load amount refers to the cuttable load amount of the cuttable load that is not in a cut-off state in the pool of cuttable load resources; comparing the target cut-off load amount with the remaining cuttable load amount to obtain a comparison result; generating a load control strategy for the cuttable load according to the comparison result; and performing load cutting of the power system according to the load control strategy to complete the load scheduling task.

[0096] Optionally, in the embodiment, the computer readable storage medium is configured to store program code for performing the following steps: obtaining main grid pull sequence position information of the power system and distribution network controllable switch, wherein the main grid pull sequence position information is used to record the sequence of disconnecting lines when power adjustment or load shedding needs to be performed in the main power grid, and the distribution network controllable switch refers to a controllable switch in the distribution network; obtaining load types, load levels, load attributes of power users supplied by the power system, and switch types of switch devices in the power system; obtaining station information, power supply area information, and contingency domain information of the power users and / or the switch devices, wherein the station information is used to record the station information to which the power users and / or the switch devices belong, the power supply area information is used to record the power supply area of the power users, and the contingency domain information is used to record the priority of the power users and / or the switch devices in recovering electricity in a first specific power state; and obtaining an executable sequence table of the power system, wherein the executable sequence table is used to record the control strategy for the load in a second specific power state.

[0097] Optionally, in the embodiment, the computer readable storage medium is configured to store program code for performing the following steps: based on the cuttable load resource pool, the first cuttable load amount of each power user under different load types in the power system is counted; based on the cuttable load resource pool, the second cuttable load amount of each power user under different load levels in the power system is counted; based on the cuttable load resource pool, the third cuttable load amount of each power user under different power supply strategies in the power system is counted, wherein the power supply strategy refers to the strategy of supplying power to the power user in the power system; based on the cuttable load resource pool, the fourth cuttable load amount of each power user under different resource scheduling levels in the power system is counted; and the first cuttable load amount, the second cuttable load amount, the third cuttable load amount, and the fourth cuttable load amount are taken as the cuttable load amount obtained from multiple dimensions.

[0098] Optionally, in the embodiment, the computer readable storage medium is configured to store program code for performing the following steps: dividing the remaining cuttable load amount according to the load level to obtain a first remaining cuttable load amount and a second remaining cuttable load amount, wherein the first remaining cuttable load amount refers to the remaining cuttable load amount in the cuttable load resource pool except for the cuttable load amount corresponding to a specific load level, and the second remaining cuttable load amount includes the first remaining cuttable load amount and the remaining cuttable load amount corresponding to a branch area not containing a specific power user, the specific power user refers to a power user with a higher electricity priority than a predetermined priority, and the specific load level refers to the load level corresponding to the load generated by the specific power user; comparing the first remaining cuttable load amount with the target cut-off load amount to obtain a first comparison result; comparing the second remaining cuttable load amount with the target cut-off load amount to obtain a second comparison result; and determining the first comparison result and the second comparison result as the comparison result.

[0099] Optionally, in the embodiment, the computer readable storage medium is configured to store program code for performing the following steps: in the case that the first comparison result indicates that the first remaining amount of load to be cut is not less than the target amount of load to be cut, determining the load control strategy as: stopping power supply to the power users corresponding to the first remaining amount of load to be cut; in the case that the first comparison result indicates that the first remaining amount of load to be cut is less than the target amount of load to be cut, and the second comparison result indicates that the second remaining amount of load to be cut is not less than the target amount of load to be cut, determining the load control strategy as: stopping power supply to the power users connected to the second remaining amount of load to be cut; and in the case that the second comparison result indicates that the second remaining amount of load to be cut is less than the target amount of load to be cut, determining the load control strategy as: stopping power supply to the power users connected to the specific feeder, wherein the specific feeder refers to a feeder whose impact on the power system after stopping power supply is lower than an impact threshold.

[0100] Optionally, in the embodiment, the computer readable storage medium is configured to store program code for performing the following steps: in the process of performing load cutting on the power system according to the load control strategy, determining the switch device to be disconnected as a target switch device according to the load control strategy; and performing disconnection operation on the target switch device in sequence according to a load control sequence table to perform load cutting on the power system, wherein the load control sequence table comprises a pre-set disconnection sequence of the start device.

[0101] Optionally, in the embodiment, the computer readable storage medium is configured to store program code for performing the following steps: in the case that the load scheduling task only involves the off-site switch device, directly performing load scheduling by the first-level scheduling center, wherein the load scheduling task is a scheduling task issued by the second-level scheduling center to the first-level scheduling center, the second-level scheduling center is an upper-level scheduling center of the first-level scheduling center, and the off-site switch device refers to a switch device located outside the substation; and in the case that the load scheduling task involves the on-site switch device, controlling the first-level scheduling center to issue the load scheduling task to the centralized control system to perform load scheduling according to the load scheduling task by the centralized control system, wherein the on-site switch device refers to a switch device located inside the substation, and the centralized control system is configured to control the power devices inside the substation.

[0102] According to another aspect of the embodiment of the present application, a processor is also provided, which is configured to run a program, wherein the program is configured to perform any of the load batch control methods of the power system.

[0103] According to another aspect of the embodiment of the present application, a computer program product is also provided, which comprises computer instructions configured to perform any of the load batch control methods of the power system when executed by a processor.

[0104] The above-mentioned embodiment numbers of the present application are only for description, and do not represent the advantages or disadvantages of the embodiments.

[0105] In the above-mentioned embodiments of the present application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0106] In several embodiments provided in the present application, it should be understood that the disclosed technical contents can be implemented by other ways. Among them, the above-mentioned device embodiments are only schematic, for example, the division of the units can be a logical function division, and actual implementation can have another division way, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed units can be indirect coupling or communication connection through some interfaces, units or modules, which can be electrical or other forms.

[0107] The units described as separate components can or can not be physically separated, and the components displayed as units can or can not be physical units, that is, they can be located in one place, or can be distributed to multiple units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0108] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be realized in the form of hardware or in the form of software functional unit.

[0109] The integrated unit, if realized in the form of software functional unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the whole or part of the technical solutions which essentially contribute to the prior art can be embodied in the form of software product, which is stored in a storage medium and includes a plurality of instructions for making a computer device (which can be a personal computer, a server or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application. The above-mentioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and various program code storage media.

[0110] The above merely describes the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, several improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as falling within the protection scope of the present application.

Claims

1. A load batch control method of a power system, characterized by, The method comprises the following steps: acquiring a sheddable load resource pool of a power system, wherein the sheddable load resource pool is used to analyze the sheddable load amount of a sheddable load from multiple dimensions, the sheddable load being a load that needs to be shed or have power supply reduced when the power system is in a supply-demand imbalance state; in a case where a load scheduling task is received, determining a target shed load amount that needs to be shed in the load scheduling task, wherein the load scheduling task refers to a task of shedding the sheddable load to make the power system reach a supply-demand balance state; obtaining a remaining sheddable load amount of the sheddable load by real-time monitoring of the sheddable load resource pool, wherein the remaining sheddable load amount refers to the sheddable load amount in the sheddable load resource pool that is not currently in a shed state; comparing the target shed load amount with the remaining sheddable load amount to obtain a comparison result; generating a load control strategy for the sheddable load according to the comparison result; shedding the load of the power system according to the load control strategy to complete the load scheduling task, comparing the target shed load amount with the remaining sheddable load amount to obtain a comparison result, comprising: dividing the remaining sheddable load amount according to load grades to obtain a first remaining sheddable load amount and a second remaining sheddable load amount, wherein the first remaining sheddable load amount refers to the remaining sheddable load amount in the sheddable load resource pool excluding the sheddable load amount corresponding to a specific load grade, the second remaining sheddable load amount including the first remaining sheddable load amount and the remaining sheddable load amount corresponding to a branch area that does not include a specific power user, the specific power user referring to a power user with a higher electricity priority than a predetermined priority, and the specific load grade referring to the load grade corresponding to the load generated by the specific power user; comparing the first remaining sheddable load amount with the target shed load amount to obtain a first comparison result; comparing the second remaining sheddable load amount with the target shed load amount to obtain a second comparison result; and determining the first comparison result and the second comparison result as the comparison result.

2. The load batch control method of a power system according to claim 1, characterized by, acquiring a sheddable load resource pool of a power system, at least one of the following: acquiring main grid pull line sequence information and distribution network controllable switches of the power system, wherein the main grid pull line sequence information is used to record the sequence of disconnecting lines when power adjustment or load shedding is needed in the main power grid, and the distribution network controllable switch refers to a controllable switch in the distribution network; acquiring the load type, load grade, load attribute of a power user supplied by the power system, and the switch type of a switch device in the power system; obtaining plant information, power supply area information and contingency area information of the power user and / or the switching device, wherein the plant information is used to record plant information to which the power user and / or the switching device belongs, the power supply area information is used to record a power supply area of the power user, and the contingency area information is used to record a priority of the power user and / or the switching device in a first specific power state to resume power use; obtaining an executable sequence table of the power system, wherein the executable sequence table is used to record a control strategy of the load in a second specific power state.

3. The load batch control method of a power system according to claim 1, characterized by, After obtaining the cuttable load resource pool of the power system, the method further comprises: statistically obtaining a first cuttable load amount of each power user in different load types in the power system based on the cuttable load resource pool; statistically obtaining a second cuttable load amount of each power user in different load levels in the power system based on the cuttable load resource pool; statistically obtaining a third cuttable load amount of each power user in different power supply strategies in the power system based on the cuttable load resource pool, wherein the power supply strategy refers to a strategy of the power system to supply power to the power user; statistically obtaining a fourth cuttable load amount of each power user in different resource scheduling levels in the power system based on the cuttable load resource pool; taking the first cuttable load amount, the second cuttable load amount, the third cuttable load amount and the fourth cuttable load amount as the cuttable load amount obtained from multiple dimensions.

4. The load batch control method of a power system according to claim 1, characterized by, generating a load control strategy of the cuttable load according to the comparison result, comprising: in a case where the first comparison result indicates that the first remaining cuttable load amount is not less than the target cut-off load amount, determining that the load control strategy is to stop supplying power to the power user corresponding to the first remaining cuttable load amount; in a case where the first comparison result indicates that the first remaining cuttable load amount is less than the target cut-off load amount, and the second comparison result indicates that the second remaining cuttable load amount is not less than the target cut-off load amount, determining that the load control strategy is to stop supplying power to the power user corresponding to the second remaining cuttable load amount; in a case where the second comparison result indicates that the second remaining cuttable load amount is less than the target cut-off load amount, determining that the load control strategy is to stop supplying power to the power user connected to a specific feeder, wherein the specific feeder refers to a feeder whose impact on the power system is lower than an impact threshold after stopping power supply.

5. The load batch control method of a power system according to claim 1, characterized by, The method further comprises: in a process of cutting off the load of the power system according to the load control strategy, determining a switching device that needs to be disconnected as a target switching device according to the load control strategy; sequentially performing a disconnection operation on the target switching device according to a load control sequence table to cut off the load of the power system, wherein the load control sequence table comprises a pre-set disconnection sequence of starting devices.

6. The load batch control method of a power system according to claim 1, characterized by, The method further comprises: In a case where the load scheduling task only involves off-station switch devices, directly performing load scheduling by the first-level scheduling center, wherein the load scheduling task is a scheduling task issued by a second-level scheduling center to the first-level scheduling center, the second-level scheduling center being an upper-level scheduling center of the first-level scheduling center, and the off-station switch devices refer to switch devices located outside the substation; In a case where the load scheduling task involves in-station switch devices, controlling the first-level scheduling center to issue the load scheduling task to a centralized control system, so as to perform load scheduling according to the load scheduling task by using the centralized control system, wherein the in-station switch devices refer to the switch devices located inside the substation, and the centralized control system is used to control power equipment inside the substation.

7. A load batch control device for a power system, characterized in that: Comprise: A first acquisition unit is configured to acquire a cuttable load resource pool of a power system, wherein the cuttable load resource pool is used to analyze a cuttable load amount of a cuttable load from multiple dimensions, and the cuttable load refers to a load that needs to be cut off or reduced in power supply when the power system is in a supply-demand imbalance state; A first determination unit is configured to, in a case where a load scheduling task is received, determine a target cut-off load amount that needs to be cut off in the load scheduling task, wherein the load scheduling task refers to a task of cutting off the cuttable load to make the power system reach a supply-demand balance state; A second acquisition unit is configured to obtain a remaining cuttable load amount of the cuttable load by monitoring the cuttable load resource pool in real time, wherein the remaining cuttable load amount refers to the cuttable load amount in the cuttable load resource pool that is not in a cut-off state at present; A third acquisition unit is configured to compare the target cut-off load amount with the remaining cuttable load amount to obtain a comparison result; A generation unit is configured to generate a load control strategy for the cuttable load according to the comparison result; A first execution unit is configured to perform load cutting of the power system according to the load control strategy to complete the load scheduling task. The third obtaining unit comprises: a fifth obtaining module, configured to divide the remaining sheddable load amount according to load levels to obtain a first remaining sheddable load amount and a second remaining sheddable load amount, wherein the first remaining sheddable load amount refers to the remaining sheddable load amount in the sheddable load resource pool except for the sheddable load amount corresponding to a specific load level, and the second remaining sheddable load amount comprises the first remaining sheddable load amount and the remaining sheddable load amount corresponding to a branch area not containing a specific power user, the specific power user refers to a power user with a higher electricity priority than a predetermined priority, and the specific load level refers to the load level corresponding to the load generated by the specific power user; a sixth obtaining module, configured to compare the first remaining sheddable load amount with the target shed load amount to obtain a first comparison result; a seventh obtaining module, configured to compare the second remaining sheddable load amount with the target shed load amount to obtain a second comparison result; and a first determining module, configured to determine the first comparison result and the second comparison result as the comparison result.

8. A computer-readable storage medium, characterized in that, The computer readable storage medium comprises a stored program, wherein the program performs the load batch control method of the power system according to any one of claims 1 to 6.

9. A computer program product comprising computer instructions, characterized in that, The computer instructions are executed by the processor to perform the load batch control method of the power system according to any one of claims 1 to 6.

Images