Configuration method of load-side primary frequency regulation system

Abstract

This application provides a configuration method for a load-side primary frequency regulation system. The method includes: dividing the target scenario into a centralized scenario, a commercial scenario, and a residential scenario based on the electricity consumption characteristics of each target scenario; in the centralized scenario, connecting each low-voltage line of a dedicated box-type transformer to an adjustable load; in the commercial scenario, connecting one low-voltage line of a first public transformer to the adjustable load, configuring a second edge gateway on the low-voltage bus line of the first public transformer, and configuring a third edge gateway on the connection line between the low-voltage line and the adjustable load; in the residential scenario, connecting one low-voltage line of one of the public distribution rooms of a second public transformer to the adjustable load, and configuring a fourth edge gateway on the low-voltage bus line of the second public transformer. This application solves the problem that the on-site wiring configuration method of the load-side primary frequency regulation control system cannot be flexibly changed according to the actual scenario.

Description

Technical Field

[0001] This application relates to the field of primary frequency regulation technology in power systems, and more specifically, to a configuration method for a load-side primary frequency regulation system. Background Technology

[0002] Currently, large-scale thermal power generation in the power grid has been replaced by renewable energy generation methods, mainly including wind power and photovoltaic power. With the diversification of power generation methods, the demand for frequency regulation in the power system is constantly increasing. Power system frequency regulation is divided into primary frequency regulation and secondary frequency regulation. The rapid development of the Internet has facilitated the participation of adjustable loads in primary frequency regulation. Considering the need for rapid response in primary frequency regulation and the characteristics of adjustable loads, such as their highly dispersed nature and small individual adjustable capacity, the participation of adjustable loads in primary frequency regulation currently mainly exists in two modes: local control and centralized control.

[0003] Existing technologies propose a control method for adjustable loads participating in primary frequency regulation. This method equates the aggregated adjustable loads to an adjustable load virtual machine group. Through baseline and auxiliary frequency regulation control modes, the control status of the adjustable load virtual machine group is evaluated. Based on the control status, adjustable loads eligible for frequency regulation at the current moment are selected. Then, through coordinated allocation between adjustable loads and conventional units, the overall regulation demand of the adjustable loads is obtained. Finally, the dynamic priority coefficient of each adjustable load is calculated in real time, and the regulation demand is allocated sequentially according to priority. However, the above frequency regulation method has a single control approach, does not disclose the local control architecture for adjustable loads participating in primary frequency regulation, cannot meet the requirement of rapid response in primary frequency regulation, and cannot flexibly configure the network structure for adjustable loads participating in primary frequency regulation according to different scenario characteristics.

[0004] Therefore, a method is needed to configure the network structure according to the characteristics of different scenarios in order to improve the practicality of primary frequency modulation in different scenarios. Summary of the Invention

[0005] The main objective of this application is to provide a configuration method for a load-side primary frequency regulation system, so as to at least solve the problem that the field wiring configuration method of the load-side primary frequency regulation control system in the prior art cannot be flexibly changed according to the actual scenario.

[0006] To achieve the above objectives, according to one aspect of this application, a configuration method for a load-side primary frequency regulation system is provided, comprising: acquiring multiple target scenarios for primary frequency regulation; classifying the target scenarios into centralized scenarios, commercial scenarios, and residential scenarios based on the electricity consumption characteristics of each target scenario; in the centralized scenario, electrically connecting each low-voltage line of a dedicated box-type transformer to an adjustable load, and configuring a first edge gateway on the low-voltage main line of the dedicated box-type transformer to control the output power of the adjustable load, wherein the first edge gateway is connected to the adjustable load via Ethernet communication, and the low-voltage main line is the summing line of all the low-voltage lines; in the commercial scenario... In the first scenario, one of the low-voltage lines of the first public transformer is connected to the adjustable load. A second edge gateway is configured on the low-voltage bus line of the first public transformer, and a third edge gateway is configured on the connection line between the low-voltage line and the adjustable load. The adjustable load uses a dedicated power distribution room. In the second scenario, one of the low-voltage lines of one of the public power distribution rooms of the second public transformer is connected to the adjustable load. A fourth edge gateway is configured on the low-voltage bus line of the second public transformer, a fifth edge gateway is configured on the bus line of the public power distribution room, and a sixth edge gateway is configured on the connection line between the low-voltage line and the adjustable load.

[0007] Optionally, the method further includes: in local control mode, acquiring a frequency regulation control command sent by a primary frequency regulation substation connected to the adjustable load, and performing primary frequency regulation according to the frequency regulation control command, wherein the frequency regulation control command is determined by the primary frequency regulation substation based on electrical parameters issued by the power plant control terminal; in remote control mode, acquiring a sub-frequency regulation control command sent by a primary frequency regulation substation connected to the adjustable load, and performing primary frequency regulation according to the sub-frequency regulation control command, wherein the sub-frequency regulation control command is determined based on a primary frequency regulation master station, and the primary frequency regulation control command is determined by the primary frequency regulation master station based on the electrical parameters and overall resource information issued by the power plant control terminal, wherein the overall resource information is a summary of the resources of all the adjustable loads.

[0008] Optionally, the target scenarios are divided into centralized scenarios, commercial scenarios, and residential scenarios based on the electricity consumption characteristics of each target scenario, including: defining scenarios with dedicated transformer access as centralized scenarios; defining scenarios with public transformer access and dedicated distribution rooms as commercial scenarios; and defining scenarios with public transformer access and public distribution rooms as residential scenarios.

[0009] Optionally, in the commercial scenario, the second edge gateway, the third edge gateway, and the energy management unit are wirelessly connected to the smart power platform to jointly manage the adjustable load, wherein the energy management unit is used to perform load management on the adjustable load.

[0010] Optionally, in the commercial scenario, the new energy load is connected to one of the low-voltage lines of the first public transformer, and the ordinary load is connected to one of the low-voltage lines of the first public transformer.

[0011] Optionally, in the civilian scenario, the fourth edge gateway, the fifth edge gateway, and the sixth edge gateway are wirelessly connected to the smart power platform, and the sixth edge gateway and the adjustable load are connected via Ethernet.

[0012] Optionally, in the civil scenario, the low-voltage lines in the public power distribution room, except for the low-voltage line connected to the adjustable load, are connected to other residential loads, wherein the other residential loads include at least smart home appliance loads and smart building loads.

[0013] Optionally, the configuration method further includes: in the centralized scenario, configuring a low-voltage distribution cabinet, charger, lightning protection grounding system, cable, cable accessories, Ethernet switch, network cable and communication box on the outside of the dedicated box-type transformer.

[0014] Optionally, the configuration method further includes: in the commercial scenario, configuring a low-voltage distribution cabinet, charger, lightning protection grounding system, cable, cable accessories, Ethernet switch, network cable and communication box on the outside of the first public transformer.

[0015] Furthermore, the configuration method also includes: in the civil scenario, configuring a low-voltage distribution cabinet, charger, lightning protection grounding system, cable, cable accessories, Ethernet switch, network cable and communication box on the outside of the second public transformer.

[0016] By applying the technical solution of this application, multiple target scenarios are obtained. Based on the power consumption characteristics of each target scenario, the target scenarios are divided into centralized scenarios, commercial scenarios, and residential scenarios. In the centralized scenario, each low-voltage line of the dedicated box-type transformer is electrically connected to an adjustable load, and a first edge gateway is configured on the low-voltage bus line of the dedicated box-type transformer to control the output power of the adjustable load. The first edge gateway and the adjustable load are connected via Ethernet communication, and the low-voltage bus line is the sum of all low-voltage lines. In the commercial scenario, one low-voltage line of the first public transformer is connected to the adjustable load. A second edge gateway is configured on the low-voltage bus line of the first public transformer, and a third edge gateway is configured on the connection line between the low-voltage line and the adjustable load. The adjustable load uses a dedicated distribution room. In the residential scenario, one low-voltage line of one of the public distribution rooms of the second public transformer is connected to the adjustable load. A fourth edge gateway is configured on the low-voltage bus line of the second public transformer, a fifth edge gateway is configured on the bus line of the public distribution room, and a sixth edge gateway is configured on the connection line between the low-voltage line and the adjustable load. Compared with existing technologies where the control method for adjustable loads participating in primary frequency regulation is relatively simple and cannot be flexibly controlled according to the characteristics of the power grid, this application can configure the frequency regulation system for adjustable loads participating in primary frequency regulation according to the characteristics of different target scenarios, so as to flexibly control the primary frequency regulation according to the characteristics of different target scenarios and improve the practicality of the primary frequency regulation system. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 A schematic flowchart illustrating a configuration method for a load-side primary frequency regulation system provided in an embodiment of this application is shown.

[0019] Figure 2 A schematic diagram of a local control mode for an adjustable load provided by an embodiment of this application is shown;

[0020] Figure 3 A schematic diagram of a remote control mode for an adjustable load provided by an embodiment of this application is shown;

[0021] Figure 4 A schematic diagram of the structure of a station power distribution room in a centralized scenario provided by an embodiment of this application is shown;

[0022] Figure 5 A schematic diagram of a commercial dedicated power distribution room in a commercial setting, provided by an embodiment of this application, is shown.

[0023] Figure 6 This illustration shows a structural schematic diagram of a residential-specific power distribution room in a civilian setting, provided by an embodiment of this application. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0027] For ease of description, the following explains some of the nouns or terms used in the embodiments of this application:

[0028] Primary frequency regulation: Primary frequency regulation is an automatic control process in a power system. When the grid frequency deviates from its rated value, the control system of the generating units in the grid automatically adjusts the active power of the units to limit the change in grid frequency, thereby maintaining the stability of the grid frequency. This control process is dynamic and aims to ensure the balance of active power in the grid.

[0029] Adjustable load: refers to a load whose output power can be varied according to the needs of the power system.

[0030] As described in the background section, the existing control methods for adjustable loads participating in primary frequency regulation are relatively simple and cannot be flexibly controlled according to the characteristics of the power grid. In order to solve the problem that the control methods for adjustable loads participating in primary frequency regulation are relatively simple and cannot be flexibly controlled according to the characteristics of the power grid, the embodiments of this application provide a configuration method for a load-side primary frequency regulation system.

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0032] This embodiment provides a configuration method for a load-side primary frequency regulation system running on a mobile terminal, computer terminal, or similar computing device. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0033] Figure 1 This is a flowchart of a configuration method for a load-side primary frequency regulation system according to an embodiment of this application. For example... Figure 1 As shown, the method includes the following steps:

[0034] Step S201: Obtain multiple target scenarios for primary frequency regulation, and classify the target scenarios into centralized scenarios, commercial scenarios, and residential scenarios based on the power consumption characteristics of each target scenario.

[0035] Specifically, as adjustable load resources on the power grid's distribution and consumption side, the unique structure of communication systems with adjustable load resources dictates that they have numerous and dispersed measurement points, wide coverage, and short communication distances. Therefore, acquiring multiple target scenarios, each with different power distribution wiring patterns for adjustable load resources and varying edge gateway installation locations and numbers, results in different power consumption characteristics for each scenario. Thus, based on the power consumption characteristics and networking features of the frequency regulation system in each target scenario, a typical network structure for the primary frequency regulation system suitable for different target scenarios can be configured. Target scenarios are divided into three categories: centralized scenarios, commercial scenarios, and residential scenarios. Centralized scenarios can be station-type, such as transportation hubs, bus stations, office areas, industrial parks, scenic spots, and public service venues. Commercial scenarios, as the name suggests, are commercial power consumption scenarios, including shopping malls, hotels, banks, theaters, and other public buildings. Residential scenarios are scenarios primarily using residential power, mainly residential communities.

[0036] Step S202: In the above-mentioned centralized scenario, each low-voltage line of the dedicated box-type transformer is electrically connected to an adjustable load, and a first edge gateway is configured on the low-voltage bus line of the dedicated box-type transformer to control the output power of the adjustable load. The first edge gateway and the adjustable load are connected via Ethernet communication, and the low-voltage bus line is the sum of all the low-voltage lines.

[0037] Specifically, in centralized scenarios, adjustable loads are connected to dedicated transformers, typically box-type transformers, as mentioned above. The network structure is simple, consisting of a main low-voltage output line from the distribution transformer, divided into multiple groups of low-voltage output lines, connecting multiple groups of adjustable load resources. Therefore, only the first edge gateway is installed at the main low-voltage output line of the transformer to control the power regulation of all adjustable load resources connected to that transformer.

[0038] Step S203: In the above-mentioned commercial scenario, one of the low-voltage lines of the first public transformer is connected to the adjustable load. A second edge gateway is configured on the low-voltage bus line of the first public transformer, and a third edge gateway is configured on the connection line between the low-voltage line and the adjustable load. The adjustable load uses a dedicated power distribution room.

[0039] Specifically, in commercial scenarios, adjustable load resources are mainly built in public buildings such as shopping malls, hotels, banks, and theaters, providing outdoor public charging services for daily commuters. The primary users are private cars and official vehicles, therefore, charging times are relatively dispersed. In this scenario, the adjustable load resources are connected to a public transformer, namely the first public transformer mentioned above, resulting in a clearly hierarchical network structure. Edge gateways are installed on the low-voltage main line of the first public transformer and the connection lines between the low-voltage lines and the adjustable loads (the incoming lines of the low-voltage switchgear where the adjustable load resources are connected) for analog signal monitoring. This scenario requires two edge gateways, namely the second and third edge gateways mentioned above.

[0040] Step S204: In the above-mentioned civil scenario, one of the low-voltage lines of one of the public distribution rooms of the second public transformer is connected to the adjustable load. A fourth edge gateway is configured on the low-voltage bus line of the second public transformer, a fifth edge gateway is configured on the bus line of the public distribution room, and a sixth edge gateway is configured on the connection line between the low-voltage line and the adjustable load.

[0041] Specifically, the civilian application scenario mainly includes residential buildings, where adjustable load resources are primarily located within residential communities, mainly providing daily electricity services to residents. In this scenario, a public transformer, i.e., a second public transformer, is also required. Adjustable load resources are mixed with other residential loads and connected to the low-voltage lines of the second public transformer. The network structure is multi-layered and complex, with adjustable load resources and user loads distributed and connected to various switchgear under the second public transformer. Therefore, edge gateways are installed on the low-voltage main line of the second public transformer, the main line (incoming line) of the public distribution room with adjustable load resources, and the low-voltage lines connecting to the aforementioned adjustable loads (low-voltage branch lines). In other words, this scenario requires three edge gateways.

[0042] This embodiment acquires multiple target scenarios and categorizes them into centralized, commercial, and residential scenarios based on their electricity consumption characteristics. In the centralized scenario, each low-voltage line of a dedicated box-type transformer is electrically connected to an adjustable load, and a first edge gateway is configured on the low-voltage bus line of the dedicated box-type transformer to control the output power of the adjustable load. The first edge gateway and the adjustable load are connected via Ethernet communication, and the low-voltage bus line is the sum of all low-voltage lines. In the commercial scenario, one low-voltage line of a first public transformer is connected to the adjustable load, a second edge gateway is configured on the low-voltage bus line of the first public transformer, and a third edge gateway is configured on the connection line between the low-voltage line and the adjustable load. The adjustable load uses a dedicated distribution room. In the residential scenario, one low-voltage line of one of the public distribution rooms of a second public transformer is connected to the adjustable load, a fourth edge gateway is configured on the low-voltage bus line of the second public transformer, a fifth edge gateway is configured on the bus line of the public distribution room, and a sixth edge gateway is configured on the connection line between the low-voltage line and the adjustable load. Compared with existing technologies where the control method for adjustable loads participating in primary frequency regulation is relatively simple and cannot be flexibly controlled according to the characteristics of the power grid, this application can configure the frequency regulation system for adjustable loads participating in primary frequency regulation according to the characteristics of different target scenarios, so as to flexibly control the primary frequency regulation according to the characteristics of different target scenarios and improve the practicality of the primary frequency regulation system.

[0043] In its specific implementation, the above method further includes the following steps: Step S205: In local control mode, acquire the frequency regulation control command sent by the primary frequency regulation substation connected to the adjustable load, and perform primary frequency regulation according to the frequency regulation control command. The frequency regulation control command is determined by the primary frequency regulation substation based on the electrical parameters issued by the power plant control terminal. Step S206: In remote control mode, acquire the sub-frequency regulation control command sent by the primary frequency regulation substation connected to the adjustable load, and perform primary frequency regulation according to the sub-frequency regulation control command. The sub-frequency regulation control command is determined based on the primary frequency regulation master station's master frequency regulation control command. The master frequency regulation control command is determined by the primary frequency regulation master station based on the electrical parameters and overall resource information issued by the power plant control terminal. The overall resource information is a summary of the resources of all the adjustable loads. This method controls the adjustable load through the above two control methods, allowing for flexible control of the adjustable load according to actual conditions.

[0044] Specifically, adjustable load resources are divided into local control mode and remote control mode. In local control mode, the adjustable load is controlled locally, such as... Figure 2As shown, in remote control mode, the adjustable load can be controlled remotely. The virtual power plant platform administrator is responsible for parameter distribution and response settlement, while the primary frequency regulation substation is responsible for frequency monitoring and power distribution. The frequency regulation response equipment executes actions and adjusts the frequency. In local control mode, the control flow is as follows: local control and response are performed on the frequency regulation response equipment within the area. The administrator of the virtual power plant platform at the substation within the area directly distributes control requests to the routing equipment in the underlying primary frequency regulation substation, which then distributes them directly to the adjustable load, allowing the frequency regulation response equipment to execute frequency regulation operations. This architecture is suitable for the rapid response needs of adjustable loads within a region.

[0045] Adjustable load resource centralized control mode, i.e., remote control mode, such as Figure 3 As shown, the virtual power plant platform administrator is still responsible for parameter distribution and response settlement. The primary frequency regulation master station is responsible for resource aggregation, centralized application, centralized management, and unified distribution. The primary frequency regulation substations perform frequency monitoring and power distribution. The corresponding frequency regulation equipment is still used to execute actions and adjust frequencies. The control flow of the centralized control mode, i.e., the remote control mode, is as follows: Adjustable load resources in different regional sites are aggregated, managed, and integrated. Then, the resource application quantities are centrally reported to the master station. Finally, the master station issues control requirements to the underlying adjustable load resources to perform frequency regulation operations. This architecture is applicable to the centralized management of adjustable load resources in different regions.

[0046] In some optional implementations, step S201, which divides the target scenarios into centralized scenarios, commercial scenarios, and residential scenarios based on the electricity consumption characteristics of each target scenario, can be achieved through the following steps: identifying scenarios with centralized electricity consumption characteristics as centralized scenarios; identifying scenarios with decentralized electricity consumption characteristics as commercial scenarios; and identifying scenarios with everyday electricity consumption characteristics as residential scenarios. This method divides the target scenarios through the above steps, thus distinguishing the electricity consumption characteristics of different scenarios and configuring them in different ways.

[0047] Specifically, centralized scenarios include transportation hubs, bus stations, office areas, industrial parks, scenic spots, and public service venues, where centralized adjustable load resources are constructed. These scenarios are characterized by concentrated electricity consumption in both time and location, typically resembling a single power station; therefore, they are classified as centralized scenarios. Commercial scenarios, also known as commercial electricity scenarios, include public buildings such as shopping malls, hotels, banks, and theaters, providing public electricity. Residential scenarios, also known as residential electricity scenarios, are used to meet the daily electricity needs of residents.

[0048] In some optional implementations, in the above-mentioned commercial scenarios, the second edge gateway, the third edge gateway, and the energy management unit are wirelessly connected to the smart power platform to jointly manage the adjustable load, wherein the energy management unit is used to perform load management on the adjustable load.

[0049] In practical implementation, commercial scenarios also include a smart power consumption platform, which can be a cloud platform or other terminal platforms. All edge gateways in this scenario are wirelessly connected to this platform. An energy management unit is also included to manage the resources of adjustable loads. This energy management unit is also wirelessly connected to the smart power consumption platform. The second edge gateway is connected to the adjustable loads via local communication. The edge gateways are used to collect analog quantities such as voltage.

[0050] In some alternative implementations, in the aforementioned commercial scenarios, the new energy load is connected to one of the aforementioned low-voltage lines of the first public transformer, and the ordinary load is connected to one of the aforementioned low-voltage lines of the first public transformer.

[0051] Specifically, commercial scenarios also include new energy loads and ordinary loads. Therefore, in commercial scenarios, apart from the new low-voltage lines added for adjustable loads, other existing low-voltage lines are connected to new energy loads or ordinary loads.

[0052] To facilitate communication, in some optional implementations, in the aforementioned civilian scenarios, the fourth, fifth, and sixth edge gateways are wirelessly connected to the smart power platform, and the sixth edge gateway and the adjustable load are connected via Ethernet.

[0053] In practical implementation, in civilian scenarios, this also includes a smart power platform, where all edge gateways connect wirelessly to the platform for wireless communication. In this scenario, the adjustable load connects to the sixth edge gateway via Ethernet for communication.

[0054] In some alternative implementations, in the aforementioned civil scenario, the low-voltage lines in the aforementioned public power distribution room, except for the low-voltage line connected to the aforementioned adjustable load, are connected to other residential loads, wherein the aforementioned other residential loads include at least smart home appliance loads and smart building loads.

[0055] Specifically, in residential scenarios, adjustable loads are connected to low-voltage lines in a mixed manner with other residential loads. Therefore, in addition to the low-voltage lines connected to adjustable loads, other low-voltage lines are connected to smart home appliance loads and other residential loads such as smart buildings.

[0056] In some optional implementations, the above configuration method further includes: in the above centralized scenario, configuring a low-voltage distribution cabinet, charger, lightning protection grounding system, cable, cable accessories, Ethernet switch, network cable and communication box on the outside of the above dedicated box transformer.

[0057] In the specific implementation process, in addition to the equipment mentioned above, the centralized scenario also includes low-voltage distribution cabinets, which are usually set outside the dedicated box-type transformers. It also includes chargers, lightning protection and grounding systems, cables, cable supporting facilities, as well as Ethernet switches, network cables and communication boxes, which are used for communication between the various devices in the scenario.

[0058] In some alternative implementations, the above configuration method further includes: in the above commercial scenario, configuring a low-voltage distribution cabinet, charger, lightning protection grounding system, cable, cable accessories, Ethernet switch, network cable and communication box on the outside of the first public transformer.

[0059] Specifically, commercial applications also require supporting equipment, including low-voltage distribution cabinets, chargers, lightning protection and grounding systems, cables, cable accessories, and Ethernet switches, network cables, and communication boxes. The specific quantity of equipment can be determined based on the actual situation.

[0060] In some optional implementations, the above configuration method further includes: in the aforementioned civilian scenario, configuring a low-voltage distribution cabinet, charger, lightning protection grounding system, cable, cable accessories, Ethernet switch, network cable, and communication box on the outside of the second public transformer. This method configures the civilian scenario with the aforementioned equipment, thus ensuring the safety and normal communication functions of the civilian scenario.

[0061] In practice, the civilian scenario is the same as the two scenarios mentioned above, requiring low-voltage distribution cabinets, chargers, lightning protection and grounding systems, cables, cable accessories, and Ethernet switches, network cables, and communication boxes for communication.

[0062] To enable those skilled in the art to better understand the technical solution of this application, the implementation process of the configuration method of the load-side primary frequency regulation system of this application will be described in detail below with reference to specific embodiments.

[0063] This embodiment relates to a specific configuration method for a load-side primary frequency regulation system, including the following steps:

[0064] Step S1: Typical wiring modes for frequency modulation systems in different scenarios are categorized as shown in Table 1:

[0065] Table 1

[0066]

[0067] Step S2: Figure 4 A schematic diagram of the station power distribution room in a centralized scenario is shown, such as... Figure 4 As shown, in a centralized scenario, adjustable load resources are connected to a dedicated box-type transformer, located within the transformer cabinet. The network structure is simple, consisting of a dedicated box-type transformer low-voltage outgoing cabinet, divided into multiple low-voltage outgoing lines, connecting multiple groups of adjustable load resources. Therefore, only an edge gateway needs to be installed at the transformer's main low-voltage line location to control the power regulation of all adjustable load resources connected to that transformer. The edge network management system is connected to the adjustable loads via Ethernet, and to the smart power consumption cloud platform via wireless. Analog signal acquisition is performed at the edge gateway's location. The main equipment materials in this scenario are shown in Table 2, divided into electrical and communication components.

[0068] Table 2

[0069]

[0070] Step S3: Figure 5 This diagram illustrates the structure of a dedicated commercial power distribution room in a commercial setting. Adjustable load resources in commercial buildings (commercial scenarios) are primarily located in public buildings such as shopping malls, hotels, banks, and theaters, providing outdoor public charging services for daily users, mainly private cars and official vehicles, whose charging times are relatively dispersed. In this scenario, the adjustable load resources are connected to a dedicated branch line of a distribution transformer, resulting in a clearly hierarchical network structure. A set of dedicated low-voltage outgoing lines from the distribution transformer are connected to the adjustable load resources. Edge gateways are installed at the low-voltage main outgoing line of the transformer and the incoming lines of the low-voltage switchgear connected to the adjustable load resources for analog signal monitoring. The location of the analog signal acquisition is the location of the edge gateway. According to the configuration scheme of the adjustable load resources in commercial buildings, the smart power cloud platform is wirelessly connected to the edge gateway and the energy management controller. The edge network at the original low-voltage outgoing line cabinet location has local communication connections with the adjustable loads. The original low-voltage outgoing line cabinet also connects to new energy devices and different types of ordinary loads, such as ordinary load 1 and ordinary load 2. Table 3 lists the main equipment materials in this scenario.

[0071] Table 3

[0072]

[0073] Step S4: Figure 6This diagram illustrates the structure of a residential-dedicated power distribution room in a civilian scenario. Adjustable load resources for residential buildings are primarily located within the residential community, mainly providing daily electricity services to residents. In this scenario, adjustable load resources and residential loads are mixed and connected to low-voltage lines, resulting in a multi-layered and complex network structure. Adjustable load resources and user loads are distributed and connected to various switchgear under the distribution transformer. Therefore, edge gateways are installed on the transformer's main low-voltage outgoing line, the incoming lines of low-voltage switchgear containing adjustable load resources, and the low-voltage branch lines containing adjustable load resources. In the power distribution room of Building A, adjustable load resources and user loads (including other loads, smart buildings, and smart appliances) are distributed and connected in a mixed manner. Edge gateways are wirelessly connected to the smart electricity cloud platform. Edge networks on the adjustable load branch lines are connected to adjustable load resources via Ethernet. For ease of management, adjustable loads are managed using zoned distribution boxes. The structure of the power distribution room in Building B can be the same as that in Building A, or it can be configured according to the actual scenario. The main equipment and materials in this scenario are shown in Table 4. Specifically, this scenario requires three edge gateways.

[0074] Table 4

[0075]

[0076] It is obvious to those skilled in the art that the modules or steps of the present invention described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. They can be implemented using computer-executable program code, and thus can be stored in a storage device for execution by a computing device. In some cases, the steps shown or described can be performed in a different order than those described herein, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the present invention is not limited to any particular combination of hardware and software.

[0077] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0078] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0079] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0080] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0081] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0082] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0083] Computer-readable media includes permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media (transitory media), such as modulated data signals and carrier waves.

[0084] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0085] As can be seen from the above description, the embodiments of this application achieve the following technical effects:

[0086] 1) In the configuration method of the load-side primary frequency regulation system of this application, multiple target scenarios are obtained, and the target scenarios are divided into centralized scenarios, commercial scenarios, and residential scenarios according to the power consumption characteristics of each target scenario; in the centralized scenario, each low-voltage line of the dedicated box-type transformer is electrically connected to an adjustable load, and a first edge gateway is configured on the low-voltage bus line of the dedicated box-type transformer to control the output power of the adjustable load. The first edge gateway is connected to the adjustable load via Ethernet communication, and the low-voltage bus line is the summary line of all low-voltage lines; in the commercial scenario, the first public... One low-voltage line of the transformer is connected to an adjustable load. A second edge gateway is configured on the low-voltage bus line of the first public transformer, and a third edge gateway is configured on the connection line between the low-voltage line and the adjustable load. The adjustable load uses a dedicated distribution room. In a civil application scenario, one low-voltage line of one of the public distribution rooms of the second public transformer is connected to the adjustable load. A fourth edge gateway is configured on the low-voltage bus line of the second public transformer, a fifth edge gateway is configured on the bus line of the public distribution room, and a sixth edge gateway is configured on the connection line between the low-voltage line and the adjustable load. Compared with existing technologies where the control method for adjustable loads participating in primary frequency regulation is relatively simple and cannot be flexibly controlled according to the characteristics of the power grid, this application can configure the frequency regulation system for adjustable loads participating in primary frequency regulation according to the characteristics of different target scenarios, so as to flexibly control the primary frequency regulation according to the characteristics of different target scenarios and improve the practicality of the primary frequency regulation system.

[0087] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A configuration method for a load-side primary frequency regulation system, characterized in that, include: Multiple target scenarios for a single frequency regulation are obtained, and the target scenarios are divided into centralized scenarios, commercial scenarios, and residential scenarios according to the power consumption characteristics of each target scenario; In the centralized scenario, each low-voltage line of the dedicated box-type transformer is electrically connected to an adjustable load, and a first edge gateway is configured on the low-voltage bus line of the dedicated box-type transformer to control the output power of the adjustable load. The first edge gateway and the adjustable load are connected via Ethernet communication, and the low-voltage bus line is the sum of all the low-voltage lines. In the commercial scenario, one of the low-voltage lines of the first public transformer is connected to the adjustable load. A second edge gateway is configured on the low-voltage bus line of the first public transformer, and a third edge gateway is configured on the connection line between the low-voltage line and the adjustable load. The adjustable load is located in a dedicated power distribution room. In the aforementioned civilian application scenario, a low-voltage line in one of the public distribution rooms of the second public transformer is connected to the adjustable load. A fourth edge gateway is configured on the low-voltage main line of the second public transformer, a fifth edge gateway is configured on the main line of the public distribution room, and a sixth edge gateway is configured on the connection line between the low-voltage line and the adjustable load. Based on the electricity consumption characteristics of each target scenario, the target scenarios are divided into centralized scenarios, commercial scenarios, and residential scenarios, including: scenarios where the electricity consumption characteristic is a dedicated transformer connection are identified as centralized scenarios; scenarios where the electricity consumption characteristic is a public transformer connection and a dedicated distribution room are identified as commercial scenarios; and scenarios where the electricity consumption characteristic is a public transformer connection and a public distribution room are identified as residential scenarios.

2. The configuration method according to claim 1, characterized in that, The method further includes: In local control mode, the frequency regulation control command sent by the primary frequency regulation substation connected to the adjustable load is obtained, and primary frequency regulation is performed according to the frequency regulation control command. The frequency regulation control command is determined by the primary frequency regulation substation based on the electrical parameters issued by the power plant control terminal. In remote control mode, the system acquires sub-frequency regulation control commands sent by the primary frequency regulation sub-station connected to the adjustable load, and performs primary frequency regulation according to the sub-frequency regulation control commands. The sub-frequency regulation control commands are determined based on the primary frequency regulation control commands sent by the primary frequency regulation master station. The primary frequency regulation control commands are determined by the primary frequency regulation master station based on the electrical parameters and overall resource information issued by the power plant control terminal. The overall resource information is the summary information of the resources of all the adjustable loads.

3. The configuration method according to claim 1, characterized in that, In the commercial scenario, the second edge gateway, the third edge gateway, and the energy management unit are wirelessly connected to the smart power platform to jointly manage the adjustable load. The energy management unit is used to manage the adjustable load.

4. The configuration method according to claim 1, characterized in that, In the commercial scenario, the new energy load is connected to one of the low-voltage lines of the first public transformer, and the ordinary load is connected to one of the low-voltage lines of the first public transformer.

5. The configuration method according to claim 1, characterized in that, In the civilian scenario, the fourth edge gateway, the fifth edge gateway, and the sixth edge gateway are wirelessly connected to the smart power platform, and the sixth edge gateway and the adjustable load are connected via Ethernet.

6. The configuration method according to claim 1, characterized in that, In the aforementioned residential scenario, the low-voltage lines in the public power distribution room, excluding the low-voltage line connected to the adjustable load, are connected to other residential loads, wherein the other residential loads include at least smart home appliance loads and smart building loads.

7. The configuration method according to claim 1, characterized in that, The configuration method further includes: In the centralized scenario, a low-voltage distribution cabinet, charger, lightning protection grounding system, cable, cable accessories, Ethernet switch, network cable and communication box are configured on the outside of the dedicated box-type transformer.

8. The configuration method according to claim 1, characterized in that, The configuration method further includes: In the commercial scenario, a low-voltage distribution cabinet, charger, lightning protection grounding system, cable, cable accessories, Ethernet switch, network cable and communication box are configured on the outside of the first public transformer.

9. The configuration method according to claim 1, characterized in that, The configuration method further includes: In the aforementioned civilian application scenario, a low-voltage distribution cabinet, charger, lightning protection grounding system, cable, cable accessories, Ethernet switch, network cable, and communication box are configured on the outside of the second public transformer.

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