Ring main unit adaptive regulation and control system for distributed energy access

Abstract

The invention, which relates to the power distribution cabinet management field, discloses a distributed energy access-oriented ring main unit adaptive regulation and control system comprising an acquisition layer, an analysis layer and a coordination layer. A power transmission target connected with a ring main unit and daily power information of the power transmission target are acquired through an acquisition layer, the power information is synchronously divided and screened in the acquisition layer and then stored in the acquisition layer, an analysis layer synchronously obtains the stored daily power information in the acquisition layer, the power transmission target is divided based on power information analysis, and the power transmission target is stored in the analysis layer. According to the method, the power information of various power transmission targets and power transmission targets is collected, the power utilization active time domain of the power transmission targets is analyzed and divided, and then the power priority configuration targets of the different power transmission targets are identified; therefore, electric power resources can be accurately distributed according to actual requirements of different power transmission targets, the electric power use efficiency is improved, energy waste is reduced, and stable power supply of each power utilization end is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution cabinet management, and specifically to a ring main unit adaptive regulation system for distributed energy access. Background Art

[0002] A ring main unit is a high-voltage switchgear used in urban distribution networks. It adopts a modular design and has a compact structure. It can achieve ring network power supply, with functions such as fault isolation and load transfer, improving power supply reliability and flexibility. It is mainly composed of a circuit breaker, a load switch, a fuse, etc., and is suitable for places such as residential communities and commercial centers, which can effectively reduce the power outage range and ensure stable power transmission.

[0003] The invention patent application with the application number 202410234384.7 discloses an adaptive operation and maintenance management method for a distribution cabinet, including: obtaining the historical operation and maintenance data of the distribution cabinet, identifying the time nodes with fault problems, and obtaining the historical fault data within a preset time before the time nodes; identifying the first data that triggers the fault in the historical fault data, obtaining the change curve of the first data, identifying the second data with a relevant change trend in the change curve of the first data in the historical fault data, establishing the association relationship between the first data and the corresponding second data, and obtaining multiple associated data groups of the first data; obtaining the current distribution cabinet monitoring data at a preset frequency, updating the digital twin of the distribution cabinet, obtaining the digital twin data, and dividing the digital twin data into each associated data group and comparing it with the corresponding historical fault data in real time; calculating the similarity between the current associated data group and the corresponding historical fault data, specifically: calculating the average data value of the normal working state of the data in the associated data group, and when the ratio of the difference between the current digital twin data and the average data value exceeding the average data value exceeds the change data threshold, regarding this item of data as a change data item, and obtaining the number of data items in the associated data group; substituting the digital twin data and the number of data items in the associated data group into the monitoring frequency model to obtain the adjusted value of the monitoring frequency. This application aims to solve the problem that "with the continuous growth of the power consumption load, the operating electrical equipment usually works under high voltage and large current conditions, and a fault will damage the equipment in a very short time, and there are safety hazards when the sensor monitoring frequency is low".

[0004] However, in the application scenario of the ring main unit, currently, due to the complex power transmission sources, during the further power distribution process, its intelligence level is relatively low, and it can only implement fixed power distribution according to the preset program logic, and cannot realize the power distribution service for the power transmission target in an intelligent and adaptive manner.

[0005] Therefore, we propose a ring main unit adaptive regulation system for distributed energy access. Summary of the Invention

[0006] In view of the above-mentioned disadvantages of the prior art, the present invention provides a ring main unit adaptive regulation system for distributed energy access, which can effectively solve the problems of the prior art.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions;

[0008] The present invention discloses a ring main unit adaptive regulation system for distributed energy access, including an acquisition layer, an analysis layer and a coordination layer;

[0009] The daily power information of the power transmission targets and power supply targets connected to the ring main unit is collected by the acquisition layer. The power information is synchronously divided and screened in the acquisition layer, and then stored in the acquisition layer. The analysis layer synchronously obtains the stored daily power information in the acquisition layer, divides the power supply targets based on the power information analysis, and identifies the power priority allocation targets of different types of power transmission targets based on the division results of the power supply targets, and configures. The coordination layer receives the power priority allocation targets of different types of power transmission targets in the analysis layer, performs power allocation based on the configuration results, and adaptively controls the system to refresh the operation;

[0010] The analysis layer includes an analysis module, a division module and a configuration module. The analysis module is used to obtain the daily power information of each power supply target, analyze the power consumption active time domain of each power supply target based on the daily power information of each power supply target. The division module is used to receive the power consumption active time domain of each power supply target in the analysis module, and divide each power supply target based on the power consumption active time domain of each power supply target. The configuration module is used to obtain the division results of the power supply targets, and configure different types of power transmission targets for the power supply targets based on the division results of the power supply targets;

[0011] The analysis logic of the power consumption active time domain of each power supply target in the analysis module is expressed as:

[0012] Taking the line graph created by each power supply target based on the power consumption in each period as the analysis target, calculate the fluctuation coefficient of the power consumption between adjacent periods:

[0013]

[0014] Adopting a sliding window method, calculate the median M of the past m fluctuation coefficients, and then multiply it by a preset adjustment factor k to obtain a dynamic fluctuation threshold T, that is, T = kxM;

[0015] Preliminary identification of active periods:

[0016] Condition: C i > T;

[0017] Calculation of the period trend intensity and determination of the duration weight:

[0018]

[0019] Set the active time domain judgment threshold. When S×W≥R, the interval is considered as the active power consumption time domain.

[0020] Where: C i is the volatility coefficient; E i+1 is the electricity consumption in the i+1 period; E i is the electricity consumption in the i-th period; max(E i+1 ,E i ) is the maximum value in the brackets; S is the trend strength of the time period; E e is the power consumption at the end time e of the potential active time domain interval; E s is the power consumption at the start time s of the potential active time domain interval; W is the duration weight; L is the duration of the potential active time domain interval;

[0021] Among them, the determination of the potential active time domain interval meets C i >T, C i For the corresponding time period i~i+1, when S×W≥R holds, the potential active time domain interval applied in the S calculation phase is identified as the active time domain for electricity consumption.

[0022] Furthermore, the collection layer includes an upload module, a processing module and a creation module, the upload module is used to upload the daily power information of the power transmission target and the power delivery target, the processing module is used to receive the daily power information of the power transmission target and the power delivery target, divide and filter the daily power information, and the creation module is used to create a ring network topology of the power transmission target and the power delivery target;

[0023] Among them, the daily power information of the transmission targets and the power delivery targets uploaded by the upload module comes from the power monitoring equipment deployed at the transmission targets and the power delivery targets. The transmission targets include wind power stations, hydropower stations, solar power stations, thermal power stations, and nuclear power stations. The power delivery targets include residential electricity, commercial electricity, and industrial electricity. The daily power information of the transmission targets includes real-time power generation efficiency and daily cumulative power supply. The daily power information of the power delivery targets includes a line chart created based on the power consumption in each time period.

[0024] Furthermore, when the processing module divides and filters the daily power information, it processes the corresponding power transmission target and power delivery target separately;

[0025] Division of daily power information corresponding to transmission targets: based on the type of transmission targets, the daily power information corresponding to each transmission target is differentiated, and the daily power information stored in each segment is sorted and stored based on time sequence; Filtering of daily power information corresponding to transmission targets: setting the time interval covered by the stored daily power information, the latest daily power information corresponding to the covered time interval is retained, and the remaining daily power information is discarded;

[0026] Division of daily power information corresponding to power transmission targets: The daily power information is differentiated according to the power transmission target household numbers, and the daily power information stored in each differentiated interval is sorted and stored based on time series; Screening of daily power information corresponding to power transmission targets: The daily power consumption of each power transmission target is cumulatively measured, and the daily power information corresponding to the power transmission target with a daily power consumption less than one degree is used as the screening target, and the screening operation is performed;

[0027] Among them, the division and screening operations of the daily power information by the processing module are refreshed and run each time the uploading module newly uploads the daily power information.

[0028] Furthermore, during the operation stage of the creation module, based on the location information of each power transmission target and power delivery target, the construction of the ring network topology between the power transmission target and the power delivery target is executed. After the ring network topology is constructed, each node on the ring network topology corresponds to represent the power transmission target and the power delivery target, and the nodes corresponding to the power transmission target and the power delivery target are mutually bound to the differentiated intervals used for storing their respective corresponding daily power information;

[0029] Among them, each node in the ring network topology created by the creation module is synchronously marked and distinguished based on the type and name of its corresponding power transmission target or power delivery target.

[0030] Furthermore, when the adjustment factor k is set, its value follows:

[0031] When the power delivery target is civil electricity, k ∈ (1.2, 1.5); when the power delivery target is commercial electricity, k ∈ (1.2, 2); when the power delivery target is industrial electricity, k ∈ (1.5, 2.5). And when the adjustment factor k takes a value, the more the cumulative power consumption of the power delivery target, the larger the value of the adjustment factor; conversely, the smaller the value of the adjustment factor.

[0032] Furthermore, during the operation stage of the division module, after receiving the active time domain of power consumption of each power delivery target, the targets that match the peak power period among the power delivery targets are identified, and the identification results are pointed to the power delivery targets and recorded as the first set of power delivery targets, and the remaining power delivery targets are recorded as the second set of power delivery targets;

[0033] The identification logic of the targets that match the peak power period among the power delivery targets is expressed as:

[0034]

[0035] In the formula: F is the judgment value; u is the total amount of the active time domain of power consumption of the power delivery target; f(t v ∈t max )、 is the judgment function; t v is the vth active time domain of power consumption; t max is the time domain corresponding to the peak power period;

[0036] Among them, the judgment function f(tv ∈t max )、 If the condition in the brackets holds, then f(t v ∈t max )、 takes the value of 1; otherwise, it takes the value of 0. For the established power transmission target, it is placed in the first power transmission target set; otherwise, it is placed in the second power transmission target set.

[0037] Furthermore, the configuration logic of the power transmission target and the power transmission target in the configuration module is as follows:

[0038] Logic1: The first power transmission target set is preferentially configured with power transmission targets of wind power plants, hydropower plants, and solar power plants. When the power supply of the power transmission target is insufficient, power is transferred from other types of power transmission targets for supply. When the power supply of the power transmission target has a surplus, it is supplied to the power transmission targets in the second power transmission target set adjacent to the first power transmission target set nearby.

[0039] Logic2: The second power transmission target set is preferentially configured with power transmission targets of thermal power plants and nuclear power plants.

[0040] Among them, when the surplus power is supplied to the power transmission targets in the second power transmission target set adjacent to the first power transmission target set nearby in Logic1, the supply target is determined based on the ring network topology.

[0041] Furthermore, the coordination layer includes a query module, a queue module, and a refresh module. The query module is used to query the position of the power transmission targets in the first power transmission target set in the ring network topology, determine the local ring network topology representing the first power transmission target set based on the position of the power transmission targets in the first power transmission target set in the ring network topology, design and apply a power distribution path in the local ring network topology. The queue module is used to obtain the local ring network topology from the query module, pick up the available power transmission targets when the power supply of the power transmission target has a surplus in the Logic1 scenario at the edge position of the local ring network topology, and generate a power transmission target queue by sorting the picked-up power transmission targets. The refresh module is used to refresh the system operation;

[0042] Among them, when the query module runs to design a power distribution path in the local ring network topology, it follows: The power distribution path passes through all the power transmission targets in the first power transmission target set, and among all the available power distribution paths in the local ring network topology, the designed and applied power distribution path has the shortest total length. When the queue module sorts the picked-up power transmission targets, it follows: The shorter the path distance of the picked-up power transmission target from the edge of the area where the local ring network topology is located, the more it is in the front position of the power transmission target queue; otherwise, the position is more backward.

[0043] Further, during the operation stage of the refresh module, when monitoring in real time the application process of the configuration logic based on the power transmission target and the power delivery target, the power supplied to the second set of power delivery targets is recorded as the output power, and the power retrieved from other types of power transmission targets and supplied to the first set of power delivery targets is recorded as the input power. The output power is positive and the input power is negative. When the monitored quantity of the output power is equal to the monitored quantity of the input power, the output power is summed up, and the input power is summed up. When the summed input power is greater than the summed output power, the system operation is refreshed.

[0044] Further, the analysis module is interconnected with the creation module through a wireless network. The creation module is interconnected with the processing module and the upload module through a wireless network. The analysis module is interconnected with the division module and the configuration module through a wireless network. The configuration module is interconnected with the query module through a wireless network. The query module is interconnected with the queue module and the refresh module through a wireless network.

[0045] Adopting the technical solution provided by the present invention, compared with the known prior art, it has the following beneficial effects:

[0046] In the present invention, the system collects the power information of various power transmission and power delivery targets, analyzes and divides the active time domain of power consumption of the power delivery targets, and then identifies the power priority allocation targets of different power transmission targets. This enables the power resources to be accurately allocated according to the actual needs of different power delivery targets, improves the power utilization efficiency, reduces energy waste, and ensures stable power supply to each power consumption end.

[0047] At the same time, in the scenario of distributed energy access, the system can process the power information of multiple power transmission and power delivery targets, and can flexibly adjust the control strategy according to the type and cumulative power consumption of the power delivery targets, effectively adapting to the power supply and demand changes in different scenarios and ensuring the stable operation of the power system.

[0048] In addition, the system can also monitor the input and output power in real time during the power configuration process, and automatically refresh the operation when the input power is greater than the output power. This intelligent dynamic control mechanism can timely optimize the power configuration scheme, improve the response speed of the system, better cope with the uncertainties brought by distributed energy access, and achieve the efficient and stable adaptive control of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0050] Figure 1 It is a schematic structural diagram of a ring main unit adaptive regulation system for distributed energy access;

[0051] Figure 2 It is a schematic diagram of a ring network topology example in the present invention;

[0052] Figure 3 It is a schematic diagram of a local ring network topology example in the present invention. Specific embodiments

[0053] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0054] The present invention will be further described below with reference to the embodiments.

[0055] Embodiment:

[0056] The ring main unit adaptive regulation system for distributed energy access in this embodiment, as Figure 1 shown, includes: a collection layer, an analysis layer and a coordination layer;

[0057] The daily power information of the power transmission target and the power supply target connected to the ring main unit is collected by the collection layer. The power information synchronization performs division and screening operations in the collection layer, and then stores it in the collection layer. The analysis layer synchronously obtains the stored daily power information in the collection layer, divides the power supply target based on the power information analysis, and identifies the power priority allocation targets of different types of power transmission targets based on the power supply target division results and configures them. The coordination layer receives the power priority allocation targets of different types of power transmission targets in the analysis layer, performs power allocation based on the configuration results, and adaptively controls the system to refresh and run;

[0058] The collection layer includes an upload module, a processing module and a creation module. The upload module is used to upload the daily power information of the power transmission target and the power supply target. The processing module is used to receive the daily power information of the power transmission target and the power supply target, perform division and screening processing on the daily power information, and the creation module is used to create the ring network topology of the power transmission target and the power supply target.

[0059] Among them, the transmission targets and power supply targets for which the upload module runs the uploaded daily power information all come from the power monitoring devices deployed at the transmission target and power supply target ends. The transmission targets include wind power stations, hydropower stations, solar power stations, thermal power stations, and nuclear power stations. The power supply targets include civil electricity, commercial electricity, and industrial electricity. The daily power information of the transmission targets includes real-time power generation efficiency and daily cumulative supplied power. The daily power information of the power supply targets includes line graphs created based on the electricity consumption in each time period;

[0060] When the processing module divides and filters the daily power information, it processes the transmission targets and power supply targets separately;

[0061] Division of the daily power information corresponding to the transmission targets: Based on the transmission target types, the daily power information corresponding to each transmission target is distinguished, and the daily power information stored in each distinguished interval is sorted and stored based on time sequence; Screening of the daily power information corresponding to the transmission targets: Set the time interval covered by the stored daily power information, and the latest daily power information corresponding to the covered time interval is retained, and the remaining daily power information is discarded;

[0062] Division of the daily power information corresponding to the power supply targets: The daily power information is distinguished according to the power supply target household numbers, and the daily power information stored in each distinguished interval is sorted and stored based on time sequence; Screening of the daily power information corresponding to the power supply targets: Accumulatively measure the daily average electricity consumption of each power supply target, and use the daily power information corresponding to the power supply targets with a daily average electricity consumption of less than one degree as the screening targets and perform the screening operation;

[0063] Among them, the division and screening operations of the daily power information by the processing module are refreshed and run each time the upload module newly uploads the daily power information;

[0064] During the operation stage of the creation module, based on the location information of each transmission target and power supply target, the construction of the ring network topology of the transmission targets and power supply targets is performed. After the ring network topology is constructed, each node on the ring network topology represents the transmission target and power supply target correspondingly, and the nodes corresponding to the transmission target and power supply target are bound to the distinguished intervals used for storing their respective corresponding daily power information;

[0065] Among them, each node in the ring network topology created by the creation module is synchronously marked and distinguished based on the type and name of its corresponding transmission target or power supply target;

[0066] The analysis layer includes an analysis module, a division module, and a configuration module. The analysis module is used to obtain the daily power information of each power transmission target, and analyze the active power consumption time domain of each power transmission target based on the daily power information of each power transmission target. The division module is used to receive the active power consumption time domain of each power transmission target in the analysis module, and divide each power transmission target based on the active power consumption time domain of each power transmission target. The configuration module is used to obtain the division result of the power transmission target, and configure different types of power transmission targets for the power transmission target based on the division result of the power transmission target;

[0067] The analysis logic of the active power consumption time domain of each power transmission target in the analysis module is expressed as:

[0068] Taking the line graph created by the power transmission target based on the power consumption in each period as the analysis target, calculate the fluctuation coefficient of the power consumption in adjacent periods:

[0069]

[0070] Adopt the sliding window method to calculate the median M of the past m fluctuation coefficients, and then multiply it by the preset adjustment factor k to obtain the dynamic fluctuation threshold T, that is, T = k×M;

[0071] Preliminary identification of active periods:

[0072] Condition: C i > T;

[0073] Calculation of the strength of the period trend and determination of the duration weight:

[0074]

[0075] Set the active time domain determination threshold. If S×W≥R, then it is determined that this interval is the active power consumption time domain;

[0076] In the formula: C i is the fluctuation coefficient; E i+1 is the power consumption in the i + 1 period; E i is the power consumption in the i period; max(E i+1 , E i ) is to take the maximum value in the parentheses; S is the strength of the period trend; E e is the power consumption at the end time e of the potential active time domain interval; E s is the power consumption at the start time s of the potential active time domain interval; W is the duration weight; L is the duration of the potential active time domain interval;

[0077] Among them, the determination of the potential active time domain interval is that those that meet C i > T, C i The corresponding period i~i + 1. When S×W≥R holds, the potential active time domain interval applied in the S calculation stage is determined as the active power consumption time domain;

[0078] Through the above logical formula, the determination logic of the active power consumption time domain is provided for each power transmission target in the system of this embodiment, and the active power consumption time domain of each power transmission target is determined to support the operation of the analysis layer in the system of this embodiment.

[0079] When setting the adjustment factor k, its value follows:

[0080] When the power transmission target is civil electricity, k ∈ (1.2, 1.5); when the power transmission target is commercial electricity, k ∈ (1.2, 2); when the power transmission target is industrial electricity, k ∈ (1.5, 2.5). And when taking the value of the adjustment factor k, the more the cumulative power consumption of the power transmission target, the larger the value of the adjustment factor; conversely, the smaller the value of the adjustment factor.

[0081] Divide the operation stage of the module. After receiving the active power consumption time domain of each power transmission target, identify the targets in the power transmission targets that match the peak power period, and mark the recognition result as the power transmission target set one, and mark the remaining power transmission targets as the power transmission target set two.

[0082] The recognition logic of the targets in the power transmission targets that match the peak power period is expressed as:

[0083]

[0084] In the formula: F is the determination value; u is the total amount of the active power consumption time domain of the power transmission target; f(t v ∈t max ) and are determination functions; t v is the vth active power consumption time domain; t max is the time domain corresponding to the peak power period.

[0085] Among them, in the determination function f(t v ∈t max ) and , if the condition in the parentheses holds, then f(t v ∈t max ) and takes the value of 1; conversely, it takes the value of 0. For the power transmission targets for which holds, they are placed in the power transmission target set one; conversely, they are placed in the power transmission target set two.

[0086] Through the above logical formula calculation, it provides support for the determination of the power transmission target set one.

[0087] The configuration logic for the power transmission target and the power transmission target in the configuration module is:

[0088] Logic1: The power transmission targets in Power Transmission Target Set 1 are preferentially allocated with the power transmission targets of wind power plants, hydropower plants, and solar power plants. When the power supply of the power transmission targets is insufficient, power is transferred from other types of power transmission targets for supply. When the power supply of the power transmission targets has a surplus, it is supplied nearby to the power transmission targets in Power Transmission Target Set 2 adjacent to Power Transmission Target Set 1;

[0089] Logic2: The power transmission targets in Power Transmission Target Set 2 are preferentially allocated with the power transmission targets of thermal power plants and nuclear power plants;

[0090] Among them, when the surplus power is supplied nearby to the power transmission targets in Power Transmission Target Set 2 adjacent to Power Transmission Target Set 1 in Logic1, the supply target is determined based on the ring network topology;

[0091] The coordination layer includes a query module, a queue module, and a refresh module. The query module is used to query the positions of the power transmission targets in Power Transmission Target Set 1 in the ring network topology, determine the local ring network topology representing Power Transmission Target Set 1 in the ring network topology based on the positions of the power transmission targets in Power Transmission Target Set 1 in the ring network topology, design and apply a power distribution path in the local ring network topology. The queue module is used to obtain the local ring network topology in the query module, pick up the available power transmission targets when the power supply of the power transmission targets has a surplus in the Logic1 scenario at the edge positions of the local ring network topology, and generate a power transmission target queue by sorting the picked-up power transmission targets. The refresh module is used to refresh the system operation;

[0092] Among them, when the query module runs to design a power distribution path in the local ring network topology, it follows: the power distribution path passes through all the power transmission targets in Power Transmission Target Set 1, and among all the available power distribution paths in the local ring network topology, the total length of the designed and applied power distribution path is the shortest. When the queue module sorts the picked-up power transmission targets, it follows: the shorter the path distance of the picked-up power transmission target from the edge of the area where the local ring network topology is located, the more it is in the front position of the power transmission target queue, and vice versa, the more it is in the back position;

[0093] During the operation stage of the refresh module, it monitors in real time the process of applying the configuration logic based on the power transmission targets and the power transmission targets. The power supplied to Power Transmission Target Set 2 is recorded as the output power, and the power transferred from other types of power transmission targets for supply to Power Transmission Target Set 1 is recorded as the input power. The output power is positive, and the input power is negative. When the monitored quantity of the output power is equal to the monitored quantity of the input power, the output power is summed up, and the input power is summed up. When the summed input power is greater than the summed output power, the system operation is refreshed;

[0094] The analysis module is interconnected with the creation module via a wireless network. The creation module is interconnected with the processing module and the upload module via a wireless network. The analysis module is interconnected with the partitioning module and the configuration module via a wireless network. The configuration module is interconnected with the query module via a wireless network. The query module is interconnected with the queue module and the refresh module via a wireless network.

[0095] In this embodiment, the upload module runs to transmit the daily power information of the power transmission target and the power supply target. The processing module runs later to receive the daily power information of the power transmission target and the power supply target, and performs partitioning and screening processing on the daily power information. The creation module further creates the ring network topology of the power transmission target and the power supply target. Then, the analysis module obtains the daily power information of each power supply target, analyzes the active power consumption time domain of each power supply target based on the daily power information of each power supply target. The partitioning module runs to receive the active power consumption time domain of each power supply target in the analysis module, partitions each power supply target based on the active power consumption time domain of each power supply target, and obtains the partitioning result of the power supply target through the configuration module. Based on the partitioning result of the power supply target, different types of power transmission targets are configured for the power supply target. The query module runs to query the position of the power supply target in the power supply target set one in the ring network topology, determines the local ring network topology representing the power supply target set one in the ring network topology based on the position of the power supply target in the power supply target set one in the ring network topology, designs and applies the power distribution path in the local ring network topology. The queue module continuously obtains the local ring network topology in the query module, picks up the available power supply target when the power supply of the power transmission target has a surplus in the Logic1 scenario at the edge position of the local ring network topology, sorts the picked-up power supply targets to generate a power supply target queue, and finally refreshes the system operation through the refresh module.

[0096] Through the system in the above embodiment, with the ring main unit as the main body, it brings a new, effective and more intelligent power regulation system to the power network composed of multiple power transmission sources and multiple power supply targets, ensuring a higher degree of power dispatch intelligence, reducing power loss, and maintaining the stability of the power network to the greatest extent.

[0097] See Figure 2 As shown, this figure further shows the power ring network topology. Based on this figure, nodes are picked up in the cable ring network topology. Based on the system operation, the determination of the power supply target combination one is realized, so as to obtain the local ring network topology in the power ring network topology. As shown by the closed image formed by multiple line segments in Figure 3 This is the system in this embodiment, which provides support for the process of distributing power to each power transmission target.

[0098] In summary, in the above embodiments, the system collects the power information of various power transmission and power supply targets, analyzes and divides the active time domain of the power supply targets for power consumption, and then identifies the power priority allocation targets of different power transmission targets. This enables the precise allocation of power resources according to the actual needs of different power supply targets, improves the power usage efficiency, reduces energy waste, and ensures stable power supply to each power consumption end. At the same time, in the scenario of distributed energy access, the system can process the power information of multiple power transmission and power supply targets, and can flexibly adjust the control strategy according to the type and cumulative power consumption of the power supply targets, effectively adapting to the power supply and demand changes in different scenarios, ensuring the stable operation of the power system. Moreover, the system can also monitor the input and output power in real time during the power allocation process, and automatically refresh the operation when the input power is greater than the output power. This intelligent dynamic control mechanism can optimize the power allocation scheme in a timely manner, improve the response speed of the system, better cope with the uncertainties brought by distributed energy access, and achieve the efficient, stable and self-adaptive control of the power system

[0099] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention

Claims

1. The adaptive regulation system of the ring main unit for distributed energy access is characterized in that, Including: A collection layer, an analysis layer, and a coordination layer; The daily power information of the power transmission target and the power supply target connected to the ring main unit is collected by the collection layer. The power information is synchronously divided and screened in the collection layer, and then stored in the collection layer. The analysis layer synchronously obtains the stored daily power information in the collection layer, divides the power supply target based on the power information analysis, and identifies the power priority allocation targets of different types of power transmission targets based on the division results of the power supply target, and configures them. The coordination layer receives the power priority allocation targets of different types of power transmission targets in the analysis layer, performs power allocation based on the configuration results, and refreshes the operation of the adaptive control system; The analysis layer includes an analysis module, a division module, and a configuration module. The analysis module is used to obtain the daily power information of each power supply target, analyze the power consumption active time domain of each power supply target based on the daily power information of each power supply target. The division module is used to receive the power consumption active time domain of each power supply target in the analysis module, and divide each power supply target based on the power consumption active time domain of each power supply target. The configuration module is used to obtain the division results of the power supply target, and configure different types of power transmission targets for the power supply target based on the division results of the power supply target; The analysis logic of the power consumption active time domain of each power supply target in the analysis module is expressed as: Taking the line graph created by the power supply target based on the power consumption in each period as the analysis target, calculate the fluctuation coefficient of the power consumption between adjacent periods: Using the sliding window method, calculate the median M of the past m fluctuation coefficients, and then multiply it by the preset adjustment factor k to obtain the dynamic fluctuation threshold T, that is, T = k × M; Preliminary identification of active periods: Condition: C i > T; Calculation of the time series trend intensity and determination of the duration weight: Set the active time domain determination threshold. If S × W ≥ R, then this interval is recognized as the power consumption active time domain; Where: C i is the fluctuation coefficient; E i+1 is the electricity consumption in the (i + 1)-th period; E i is the electricity consumption in the i-th period; max(E i+1 , E i ) means taking the maximum value inside the brackets; S is the strength of the period trend; E e is the electricity consumption at the end time e of the potentially active time domain interval; E s is the electricity consumption at the start time s of the potentially active time domain interval; W is the duration weight; L is the duration of the potentially active time domain interval; Among them, the determination of the potentially active time domain interval conforms to C i > T, C i For the corresponding time period i to i + 1, when S × W ≥ R holds, the potentially active time domain interval applied in the S calculation stage is recognized as the electricity consumption active time domain.

2. The adaptive regulation system of the ring main unit for distributed energy access according to claim 1, wherein The collection layer includes an upload module, a processing module, and a creation module. The upload module is used to upload the daily power information of the power transmission target and the power supply target. The processing module is used to receive the daily power information of the power transmission target and the power supply target, and perform division and screening processing on the daily power information. The creation module is used to create the ring network topology of the power transmission target and the power supply target; Among them, the daily power information of the power transmission target and the power supply target uploaded by the upload module all comes from the power monitoring equipment deployed at the power transmission target and the power supply target end. The power transmission targets include wind power stations, hydropower stations, solar power stations, thermal power stations, and nuclear power stations. The power supply targets include civilian electricity, commercial electricity, and industrial electricity. The daily power information of the power transmission target includes real-time power generation efficiency and daily cumulative power supply. The daily power information of the power supply target includes the line graph created based on the power consumption in each period.

3. The adaptive control system for a ring main unit for distributed energy access according to claim 2, characterized in that, When the processing module performs division and screening processing on the daily power information, it processes the power transmission target and the power supply target separately; Division of the daily power information corresponding to the power transmission target: Based on the type of the power transmission target, distinguish the daily power information corresponding to each power transmission target, and the daily power information stored in each distinguished interval is sorted and stored based on time sequence; Screening of the daily power information corresponding to the power transmission target: Set the time interval covered by the stored daily power information, and the latest daily power information corresponding to the covered time interval is retained, and the remaining daily power information is discarded; Division of daily power information corresponding to power transmission targets: The daily power information is distinguished according to the power transmission target household numbers, and the daily power information stored in each division interval is sorted and stored based on time sequence; Screening of daily power information corresponding to power transmission targets: The daily power consumption of each power transmission target is cumulatively measured, and the daily power information corresponding to the power transmission target with a daily power consumption of less than one degree is used as the screening target, and the screening operation is performed; Among them, the division and screening operations of the daily power information by the processing module are refreshed and run every time the upload module newly uploads the daily power information.

4. The adaptive regulation system for a ring main unit for distributed energy access according to claim 2, wherein, During the operation stage of the creation module, based on the location information of each power transmission target and power transmission target, the construction of the ring network topology of the power transmission target and power transmission target is performed. After the ring network topology is constructed, each node on the ring network topology represents the power transmission target and power transmission target correspondingly, and the nodes corresponding to the power transmission target and power transmission target are bound to the division intervals used for storing their respective corresponding daily power information; Among them, each node in the ring network topology created by the creation module is synchronously marked differently based on the type and name of its corresponding power transmission target or power transmission target.

5. The adaptive regulation system for ring main unit facing distributed energy access according to claim 1, characterized in that When the adjustment factor k is set, its value follows: When the power transmission target is civil electricity, k ∈ (1.2, 1.5); when the power transmission target is commercial electricity, k ∈ (1.2, 2); when the power transmission target is industrial electricity, k ∈ (1.5, 2.5). And when the adjustment factor k takes a value, the more the cumulative power consumption of the power transmission target, the larger the value of the adjustment factor; conversely, the smaller the value of the adjustment factor.

6. The adaptive regulation system of the ring main unit for distributed energy access according to claim 1, wherein During the operation stage of the division module, after receiving the active time domain of power consumption of each power transmission target, the targets that match the peak power period among the power transmission targets are identified, and the identification result is pointed to the power transmission target and recorded as the first set of power transmission targets, and the remaining power transmission targets are recorded as the second set of power transmission targets; The identification logic of the targets that match the peak power period among the power transmission targets is expressed as: Where: F is the determination value; u is the total amount of the active time domain of the power transmission target electricity consumption; f(t v ∈t max )、 is the determination function; t v is the v-th active time domain of electricity consumption; t max is the time domain corresponding to the peak electricity period; Among them, the decision function f(t v ∈t max ), if the condition in the parentheses holds, then f(t v ∈t max ) takes the value of 1; otherwise, it takes the value of 0. For the established power transmission target, it is placed in the first power transmission target set; otherwise, it is placed in the second power transmission target set.

7. The adaptive regulation system of the ring main unit for distributed energy access according to claim 1, wherein The configuration logic of the power transmission target and power transmission target in the configuration module is: Logic1: The first set of power transmission targets is preferentially configured with power transmission targets of the types of wind power stations, hydropower stations, and solar power stations. When the power supply of the power transmission target is insufficient, power is transferred from other types of power transmission targets for supply. When the power supply of the power transmission target has a surplus, it is supplied nearby to the power transmission targets in the second set of power transmission targets adjacent to the first set of power transmission targets; Logic2: The second set of power transmission targets is preferentially configured with power transmission targets of the types of thermal power stations and nuclear power stations; Among them, when the surplus power is supplied nearby to the power transmission targets in the second set of power transmission targets adjacent to the first set of power transmission targets in Logic1, the supply target is determined based on the ring network topology.

8. The adaptive control system for a ring main unit for distributed energy access according to claim 1, characterized in that, The coordination layer includes a query module, a queue module, and a refresh module. The query module is used to query the position of the power transmission target in the power transmission target set 1 in the ring network topology, determine the local ring network topology representing the power transmission target set 1 in the ring network topology based on the position of the power transmission target in the power transmission target set 1 in the ring network topology, design and apply the distribution path in the local ring network topology, the queue module is used to obtain the local ring network topology in the query module, pick up the power transmission target that is available when the power transmission target has a surplus of power supply under the Logic1 scenario at the edge position of the local ring network topology, sort the picked power transmission targets to generate a power transmission target queue, and the refresh module is used to refresh the system operation; Among them, when the query module runs in the local ring network topology to design the distribution path, it obeys: the distribution path passes through the power transmission targets in the set of all power transmission targets, and in the local ring network topology, compared with all available distribution paths, the total length of the designed and applied distribution path is the shortest. When the queue module sorts the picked power transmission targets, it obeys: the shorter the path distance of the picked power transmission target from the edge of the area where the local ring network topology is located, the closer it is to the front position of the power transmission target queue, and vice versa.

9. The adaptive regulation system for ring main unit facing distributed energy access according to claim 8, characterized in that, During the operation phase of the refresh module, the power supplied to the second power transmission target set is monitored in real time during the application of the configuration logic based on the power transmission target and the transmission target, which is recorded as the output power, and the power drawn from other types of power transmission targets to the first power transmission target set is recorded as the input power. The output power is positive and the input power is negative. When the output power monitoring quantity is equal to the input power monitoring quantity, the output power is summed and the input power is summed. When the summed input power is greater than the summed output power, the system is refreshed.

10. The adaptive regulation system of the ring main unit for distributed energy access according to claim 1, characterized in that, The analysis module is interactively connected with the creation module through a wireless network, the creation module is interactively connected with the processing module and the upload module through a wireless network, the analysis module is interactively connected with the division module and the configuration module through a wireless network, the configuration module is interactively connected with the query module through a wireless network, and the query module is interactively connected with the queue module and the refresh module through a wireless network.

Images