CN116154765A

CN116154765A - Power topological relation identification method and device, computer equipment and storage medium

Info

Publication number: CN116154765A
Application number: CN202310171440.2A
Authority: CN
Inventors: 廖耀华; 李博; 李波; 巴挺杰; 常艳平; 范云方; 李浩涛; 何明蔚; 谭东林; 李正兴; 顾志明; 王恩; 程富勇; 魏龄; 陈文华; 邓涛; 王榕楠; 张旭
Original assignee: Electric Power Research Institute of Yunnan Power Grid Co Ltd
Current assignee: Electric Power Research Institute of Yunnan Power Grid Co Ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-05-23

Abstract

The application discloses a method, a device, a computer device and a storage medium for identifying a power topological relation, wherein the method comprises the following steps: issuing power utilization characteristic generation commands to each piece of sub-equipment in sequence; collecting real-time electricity utilization characteristic information of each piece of sub-equipment after issuing an electricity utilization characteristic generation command; determining the membership between the target sub-equipment indicated by the power utilization characteristic generation command and the associated equipment according to the real-time power utilization characteristic information of the sub-equipment under the same power utilization characteristic generation command; taking root equipment as a root node, and obtaining paths from the root equipment to each piece of sub equipment through traversal according to membership corresponding to each piece of sub equipment; selecting the longest path from all paths from the root device to the same sub-device as a topology path from the root device to the sub-device; and generating the power topological relation of the target area according to the topological path from the root equipment to each piece of sub equipment. The method and the device can be used for quickly carding the household change relation of the platform area, and are high in efficiency and accuracy.

Description

Power topological relation identification method and device, computer equipment and storage medium

Technical Field

The present disclosure relates to the field of power communication technologies, and in particular, to a method and apparatus for identifying a power topology relationship, a computer device, and a storage medium.

Background

The accuracy of the user-to-user relationship in the current power industry in the traditional mode is very important in business marketing operation. However, if the user information is changed unstably, the table is changed due to faults, the area is updated, updated and reformed, and the like, the user change relation is changed frequently. When the user-to-user relationship changes, the problems of 'line not to user' and the like are caused, and the current lack of a unified platform region relationship checking means is added, so that the accuracy of user-to-user relationship data established by the system is insufficient. The inaccuracy of the user-to-user relationship can cause large data errors of the analysis of the transformer area and the split phase line loss, so that the newly added load arrangement of the service expansion is unreasonable, the load balancing is influenced, and the success rate of remote fee control and remote recharging is reduced. Various problems directly affect the development, implementation and expansion application of the power business.

The traditional household transformer relation identification method mainly relies on manual hunting and power failure identification, a technician with certain experience is often required to arrive at the site to carry out line inspection, the method is time-consuming and labor-consuming, the problem of low execution efficiency is caused, the application range is limited, and the method is only suitable for overhead lines. The power failure identification needs to cause short-time power failure measurement of users, and although the identification effect is good, the power utilization of resident users is affected.

Disclosure of Invention

The main purpose of the application is to provide a method, a device, a computer device and a storage medium for identifying a power topological relation, which can solve the technical problems of insufficient accuracy, low efficiency and influence on normal power consumption of a user in the prior art by identifying a user change relation through manual hunting and power failure.

In order to achieve the above object, a first aspect of the present application provides a method for identifying a power topological relation, which is applied to root equipment governed by a target platform, and the method includes:

issuing power utilization characteristic generation commands to each piece of sub-equipment in sequence;

collecting real-time electricity utilization characteristic information of each piece of sub-equipment after issuing an electricity utilization characteristic generation command;

determining potential membership between target sub-equipment indicated by the power utilization characteristic generation command and associated equipment according to real-time power utilization characteristic information of the sub-equipment under the same power utilization characteristic generation command, wherein the associated equipment comprises root equipment and parts in other sub-equipment;

taking root equipment as a root node, and obtaining paths from the root equipment to each piece of sub equipment through traversal according to potential membership corresponding to each piece of sub equipment;

selecting the longest path from all paths from the root device to the same sub-device as a topology path from the root device to the sub-device;

And generating the power topological relation of the target area according to the topological path from the root equipment to each piece of sub equipment.

To achieve the above object, a second aspect of the present application provides an apparatus for identifying a power topological relation, the apparatus comprising:

the command issuing module is used for sequentially issuing power utilization characteristic generation commands to each piece of sub-equipment;

the information collection module is used for collecting real-time electricity utilization characteristic information of each piece of sub-equipment after the electricity utilization characteristic generation command is issued;

the membership determining module is used for determining potential membership between target sub-equipment indicated by the power utilization characteristic generating command and associated equipment according to real-time power utilization characteristic information of the sub-equipment under the same power utilization characteristic generating command, wherein the associated equipment comprises root equipment and parts of other sub-equipment;

the path searching module is used for taking the root equipment as a root node, and obtaining the path from the root equipment to each piece of sub equipment through traversal according to the potential membership corresponding to each piece of sub equipment;

the topology path determining module is used for selecting the longest path from all paths from the root device to the same sub-device as the topology path from the root device to the sub-device;

and the topology diagram construction module is used for generating the power topology relation of the target platform area according to the topology path from the root equipment to each piece of sub equipment.

To achieve the above object, a third aspect of the present application provides a computer-readable storage medium storing a computer program, which when executed by a processor, causes the processor to perform the steps of:

To achieve the above object, a fourth aspect of the present application provides a computer device, including a memory and a processor, the memory storing a computer program, which when executed by the processor causes the processor to perform the steps of:

By adopting the embodiment of the application, the method has the following beneficial effects:

by collecting the real-time power utilization characteristic information, the method and the device realize the identification of the power topological relation of the transformer area based on the data analysis technology, namely the identification of the transformer area 'line-user' topological relation. The system has the advantages that manual line hunting and power failure identification are not needed, labor cost is reduced, time and labor are saved, the problems of difficulty in carding the household change relation of the platform area, low efficiency, slow updating, unbalanced three-phase load and the like are solved on the premise that the electricity consumption of a user is not affected, the household change relation of the platform area is quickly and accurately carded, the change of the household change relation of the platform area can be timely found, the household change relation of the platform area is timely updated, visual detection of technicians is facilitated, and the implementation and expansion cost of marketing business is reduced. In addition, by automatically constructing the power topological relation of the transformer area, the accuracy of the power topological relation, namely the accuracy of the user change relation data, is high, the load balance can be improved, the accuracy of analysis of the transformer area and the phase line loss is ensured, the load arrangement of the service end is reasonable, and the efficiency of the power system can be greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

fig. 1 is an application environment diagram of a method for identifying a power topological relation in an embodiment of the present application;

FIG. 2 is a flowchart of a method for identifying a power topology in an embodiment of the present application;

FIG. 3 is an effect diagram of a power topology in an embodiment of the present application;

FIG. 4 is a schematic diagram of path searching in an embodiment of the present application;

fig. 5 is a block diagram of a device for identifying a power topology in an embodiment of the present application;

fig. 6 is a block diagram of a computer device in an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

Fig. 1 is an application environment diagram of a method for identifying a power topology in one embodiment. Referring to fig. 1, the power topology identification method is applied to root devices 10 of a zone. The bay comprises a root device 10, which can communicate electrically, a number of sub-devices 20 (sub-device 1, sub-device 2..sub-device n), the root device 10 being able to communicate with a master station 30.

In one embodiment, a method of identifying a power topology is provided. As shown in fig. 2, the present embodiment exemplifies a root device administered by being applied to a target station. The identification method of the power topological relation specifically comprises the following steps:

s100: and sequentially issuing power utilization characteristic generation commands to each piece of sub-equipment.

Specifically, the target zone includes one root device and a plurality of child devices. The sub-devices are the devices governed by the root device, and the sub-devices also have hierarchical and jurisdictional relations.

According to the device address, the root device can sequentially issue power utilization characteristic generation commands to each sub-device according to a certain sequence. How many sub-devices the root device manages, how many different power utilization characteristics will be issued to generate commands.

The root device may be an intelligent terminal of the target area, and the sub-devices may include an intelligent measurement switch and an intelligent ammeter of the target area.

The root device can send the electricity utilization characteristic generation command to the intelligent electric meter through the meter reading message according to the device address of the intelligent electric meter.

In addition, the root device may issue the power feature generation command to the smart meter before issuing the power feature generation command to the smart measurement switch.

The power utilization feature generation command carries the device address and command content of the target sub-device.

Wherein each sub-device has a function of receiving a command or data and transmitting the data.

And the power-up feature generation commands of the respective sub-devices are issued at different times.

S200: and collecting real-time electricity utilization characteristic information of each piece of sub-equipment after the electricity utilization characteristic generation command is issued.

Specifically, after receiving the electricity utilization characteristic generation command, the target sub-equipment generates an electricity utilization characteristic signal such as a characteristic current signal in the power grid by utilizing a resistor switching device contained in the target sub-equipment, and feeds the characteristic current signal back to the power line.

Typically, the entire low-voltage transformer has only one power supply (i.e., a low-voltage transformer), so that all upper nodes of the node generating and transmitting the characteristic current signal can detect the characteristic current signal, while the lower nodes of the node and the nodes of other branches cannot detect the characteristic current signal. Based on this principle, the superior sub-device of the target sub-device will necessarily monitor the power consumption characteristic signal through the power line. The upper-level sub-equipment has the function of identifying the characteristic current signal, detects the characteristic current signal, carries out corresponding demodulation processing, and finally decodes the characteristic current signal on the power line to obtain data information, and can record and store relevant information of the detected characteristic current signal, including the identification time of the detected characteristic current signal, and can also include the phase, the current magnitude, the signal noise and the like of the characteristic current signal without being limited to the information.

Based on the principle, after each power utilization characteristic generation command is issued, the target sub-equipment indicated by the power utilization characteristic generation command can generate a power utilization characteristic signal, and the associated equipment at the upper level of the target sub-equipment can detect the power utilization characteristic signal. Therefore, under the action of the electricity utilization characteristic generation command, the target sub-equipment and the associated equipment can generate respective real-time electricity utilization characteristic information.

Because the root device issues an electricity utilization characteristic generation command to each piece of sub-equipment, each piece of sub-equipment uploads corresponding real-time electricity utilization characteristic information to the root device, and the quantity of the real-time electricity utilization characteristic information uploaded by each piece of sub-equipment is related to the position of the sub-equipment in the whole topological structure (namely the quantity of the included superior nodes and the superior nodes). Or the root device can actively remove the real-time electricity utilization characteristic information generated and stored by the sub-device in the sub-device.

S300: and determining potential membership between the target sub-device indicated by the power utilization characteristic generation command and the associated device according to the real-time power utilization characteristic information of the sub-device under the same power utilization characteristic generation command, wherein the associated device comprises a root device and parts of other sub-devices.

Specifically, all the jurisdictional devices within the district that need to participate in the networking have the capability of reading, detecting and generating electricity characteristics such as characteristic currents. The same power utilization characteristic generation command can enable the target sub-equipment indicated by the power utilization characteristic generation command to generate a power utilization characteristic signal, and the associated equipment associated with the target sub-equipment can also detect the power utilization characteristic signal generated by the target sub-equipment. Thus, the same powered feature generates a device that responds under command comprising at least one sub-device.

According to the real-time electricity utilization characteristic information of all the sub-devices, the number of the sub-devices responding to the same electricity utilization characteristic generation command can be determined, and the membership between the target sub-device and the associated device is determined according to the real-time electricity utilization characteristic information.

S400: and taking the root equipment as a root node, and obtaining paths from the root equipment to each piece of sub equipment through traversal according to the potential membership corresponding to each piece of sub equipment.

Specifically, according to the membership, all paths from the root device to any one child device can be determined in a traversal-by-traversal manner. The path from the root device to any one of the child devices includes at least one according to the membership. Some of these paths may have overlapping portions, the lengths of the paths are not necessarily the same, and the sub-devices included in the paths are not identical.

S500: the longest path is selected from all paths from the root device to the same sub-device as the topology path from the root device to the sub-device.

Specifically, in practice, there is only one topology path from the root device to the child device, and this topology path includes all other child devices that must pass between the root device and the child device, where the other child devices must pass are superior devices of the child device. Thus, through the longest path principle, the longest path can be determined from all paths from the root device to the same word device as the topology path from the root device to the child device.

S600: and generating the power topological relation of the target area according to the topological path from the root equipment to each piece of sub equipment.

Specifically, some of the topology paths from the root device to all the sub-devices have overlapping portions, so that shorter topology paths in the overlapping paths can be removed through merging, only the longest topology path in the overlapping paths is reserved, then the root device is used as a root node, and the power topology relation of the target station area can be obtained according to all the longest overlapping paths.

In addition, the power topological relation generated by the root device can be stored in a form such as a table, a binary tree and the like, and the master station can actively remove the root device to pull the power topological relation, and can upload the generated power topological relation to the master station by the root device.

After the master station acquires the power topological relation, the master station generates a power topological diagram through means such as drawing and rendering according to the power topological relation. The power topological graph can be displayed and presented, so that the user can conveniently check the power topological graph.

FIG. 3 is an effect diagram of a power topology in an embodiment of the present application; referring to fig. 3, a measuring switch 1 and a measuring switch 2 are directly administered under the terminal; the measuring switch 1 directly manages the measuring switch 3 and the measuring switch 4, and the measuring switch 2 manages the measuring switch 5; the measuring switch 3 manages the measuring switch 6 and the ammeter 2, the measuring switch 4 manages the ammeter 3, the measuring switch 7 and the ammeter 5, and the measuring switch 5 manages the ammeter 6, the measuring switch 8 and the ammeter 9; the measuring switch 6 manages the ammeter 1, the measuring switch 7 manages the ammeter 4, and the measuring switch 8 manages the ammeter 7 and the ammeter 8.

According to the embodiment, the power topological relation of the transformer area is identified based on the data analysis technology by collecting the real-time power utilization characteristic information, namely the identification of the transformer area 'line-user' topological relation is realized. The system has the advantages that manual line hunting and power failure identification are not needed, labor cost is reduced, time and labor are saved, the problems of difficulty in carding the household change relation of the platform area, low efficiency, slow updating, unbalanced three-phase load and the like are solved on the premise that the electricity consumption of a user is not affected, the household change relation of the platform area is quickly and accurately carded, the change of the household change relation of the platform area can be timely found, the household change relation of the platform area is timely updated, visual detection of technicians is facilitated, and the implementation and expansion cost of marketing business is reduced. In addition, by automatically constructing the power topological relation of the transformer area, the accuracy of the power topological relation, namely the accuracy of the user change relation data, is high, the load balance can be improved, the accuracy of analysis of the transformer area and the phase line loss is ensured, the load arrangement of the service end is reasonable, and the efficiency of the power system can be greatly improved.

In one embodiment, if the device is a target sub-device, the real-time power utilization characteristic information includes a switching occurrence time of generating a characteristic current signal in the power grid by using a local resistance switching device;

if the power line is a root device or other sub-devices, the real-time power utilization characteristic information comprises the identification time when the characteristic current signal on the power line is detected;

after step S100, the method further comprises: recording the issuing time of each electricity utilization characteristic generation command;

s300 specifically includes:

determining target sub-equipment and associated equipment responding under the power utilization characteristic generation command according to the issuing time of the power utilization characteristic generation command, the switching occurrence time of the target sub-equipment and the identification time of the characteristic current signal, and determining the membership between the target sub-equipment and the associated equipment indicated by the power utilization characteristic generation command according to the switching end time of the responding target sub-equipment and the identification time of the associated equipment to the characteristic current signal.

Specifically, the power consumption characteristic signal of the present embodiment is a characteristic current signal. And the root equipment issues an electricity utilization characteristic generation command to the target sub-equipment according to the equipment address of the target sub-equipment, and meanwhile, the root equipment also records the issuing time of the electricity utilization characteristic generation command.

If the root equipment is an intelligent terminal and the target sub-equipment is an intelligent ammeter, the intelligent terminal sends an electricity utilization characteristic generation command to the target intelligent ammeter through a meter reading message according to the ammeter address of the target intelligent ammeter.

The target sub-device has a function of receiving a processing command or instruction and also has a function of transmitting data. After receiving the power utilization characteristic generation command, the target sub-equipment generates a characteristic current signal in the power grid by utilizing a self resistance switching device, locally records the switching occurrence time, and can record the switching end time and the related information of the generated characteristic current signal. And generating real-time electricity utilization characteristic information according to the switching occurrence time, and transmitting the real-time electricity utilization characteristic information to the root equipment.

Meanwhile, if the target sub-device has a superior device, the superior device thereof, i.e., the associated device, can also detect the characteristic current signal through the power line. After the correlation device detects the characteristic current signal, the correlation device records the identification time of the detected characteristic current signal, and can also record the phase identification result of the detected characteristic current signal. And generating real-time electricity utilization characteristic information according to the identification time and transmitting the real-time electricity utilization characteristic information to the root equipment.

For example, a measurement switch of a meter box where the intelligent electric meter is located, a branch switch where the meter box is located, and an intelligent terminal detect a target characteristic current signal on the power line. If the target characteristic current signal is successfully detected within the set time, the identification time is stored in the local equipment and is uploaded to the root equipment. The root device then transmits the characteristic current to the next intelligent ammeter.

The root device issues power utilization characteristic generation commands to each piece of sub-equipment at different moments in sequence, the target sub-equipment under the same command responds to the commands to generate characteristic current signals first, and other related equipment sequentially detects the characteristic current signals, so that the starting moment of throwing and the identification moment of the characteristic current signals are different, but close to each other and within a range of time difference under the same command in the presence of time delay. For example, the switching of the target sub-device starts at the time of 12 minutes and 0 seconds, and the associated device detects the characteristic current signal at the time of 12 minutes and 5 seconds, the time of 12 minutes and 10 seconds, the time of 12 minutes and 14 seconds and the time of 12 minutes and 20 seconds in sequence. The time difference between these times is within a preset range, and therefore, it is determined that the child device corresponding to these times is the associated device of the target child device. The preset range may be set according to the actual application scenario, for example, within 30s, within 1 minute, within 5 minutes, etc., and is not limited thereto, and specifically relates to the issuing time interval of the command for generating the adjacent two power utilization characteristics. Therefore, according to the issuing time of the electricity utilization characteristic generation command, the starting time of the throwing of the target sub-equipment and the identification time of the characteristic current signals by other sub-equipment, the target sub-equipment and the associated equipment responding to the same electricity utilization characteristic generation command can be judged. And determining the membership between the target sub-equipment responding under the same electricity utilization characteristic generation command and the associated equipment according to the sequence of the associated equipment for identifying the characteristic current signals. This membership is not necessarily a true membership, but is just one possible potential membership.

In addition, the membership referred to in this embodiment is a possible membership, and does not represent a real membership between devices; the association device of the embodiment does not directly respond to the power utilization characteristic generation command issued to the target sub-device, but the characteristic current signal generated by the target sub-device is detected by the association device, so that the association device indirectly becomes a response device.

The root device may store the potential membership as a table of potential membership. The potential membership table stores parent-child relationships between child devices. For example as shown in table 1 below:

TABLE 1

Father member	Child members
		Terminal	Ammeter
1
	Measuring switch 3	Ammeter 1
Terminal			Measuring switch	1
	Measuring switch 1	Measuring switch 3
Measuring switch 3			Measuring switch 6
	Terminal	Measuring switch 3
Terminal			Measuring switch	6
	Measuring switch 6	Ammeter 1
Measuring switch 1			Ammeter 1
	Measuring switch 1	Measuring switch 6
…			…

FIG. 4 is a schematic diagram of path searching in an embodiment of the present application; referring to fig. 4, according to the potential membership (i.e., parent-child relationship) between the root device and the child device, all paths from the terminal to table 1 are traversed from the terminal, resulting in 4 paths, respectively:

path 1: terminal-ammeter 1

Path 2: terminal-measuring switch 6-ammeter 1

Path 3: terminal-measuring switch 3-measuring switch 6-ammeter 1

Path 4: terminal-measuring switch 1-measuring switch 3-measuring switch 6-ammeter 1

According to the longest path principle, the longest path 4 is selected from the paths 1 to 4 as a topological path from the terminal to the ammeter 1.

According to the method and the device, the target sub-equipment and the associated equipment responding to the same electricity utilization characteristic generation command and the possible membership between the target sub-equipment and the associated equipment can be determined by collecting the issuing time of the electricity utilization characteristic generation command, the switching end time of the target sub-equipment, the identification time of the characteristic current signals by other sub-equipment and the phase identification result. Has important significance for digging the real membership between the root equipment and the sub-equipment.

In one embodiment, step S100 specifically includes:

after receiving a member list of the platform region equipment issued by the master station, if an electricity utilization characteristic generation instruction issued by the master station is received, generating a command issuing task, and intermittently executing the command issuing task in a task scheduling mode to issue corresponding electricity utilization characteristic generation commands to target sub-equipment indicated by different electricity utilization characteristic generation instructions at different moments.

Specifically, on the basis of setting a ledger in a platform area, a master station identifies devices contained in a target platform area according to device addresses, wherein the devices comprise a root device and a plurality of sub-devices.

The master station generates a station area equipment member table according to the identification result of the station area to which the equipment belongs, wherein the station area equipment member table records information such as a unique identification of a target station area to which the equipment belongs, an equipment address of each equipment member and the like.

The master station will issue the zone device member list to the root device of the target zone. After the master station starts the user change relation identification flow, the master station transmits and transmits a power generation characteristic generation instruction to the root equipment.

And the root equipment starts to initiate networking after receiving the member list of the district equipment issued by the master station, monitors that all the sub-equipment is connected to the network, and performs task scheduling and execution.

After the user change relation identification process is started, the master station can issue a power utilization characteristic generation instruction to the root equipment. The root device generates a command issuing task for issuing different electricity utilization characteristic generating commands to different sub-devices according to the electricity utilization characteristic generating command and the device addresses of the sub-devices. The command issuing task is intermittently executed at different time by a task scheduling mode, and issues one electricity utilization characteristic generation command once each time the command issuing task is executed, so that different electricity utilization characteristic generation commands can be issued to different pieces of sub-equipment at different time. In addition, the command issuing task needs to be suspended when not executing.

After each power utilization characteristic generation command is issued, the corresponding target sub-equipment and the associated equipment all need a certain response time, and in order to avoid the situation that the target sub-equipment and the associated equipment are difficult to distinguish due to time confusion, the time interval of issuing the adjacent two power utilization characteristic generation commands, namely the time interval of each scheduling of the command issuing task, can be reasonably set.

In addition, most of the current function implementation algorithms are completed at a master station, and cloud computing also has certain disadvantages such as insufficient security protection, network delay and interruption. According to the method and the device, edge calculation processing is performed through the intelligent terminal, topology identification is achieved, speed advantages are obvious, and compared with cloud calculation, data processing of different areas is performed at the corresponding terminal, so that safety is reliable.

In addition, the main station can issue the electricity characteristic generation instruction of the ammeter first, and issue the electricity characteristic generation instruction of the switches (measuring switches) of each stage of the ammeter box after the issuing is completed.

In one embodiment, the command issuing task is intermittently executed in a task scheduling manner, so as to issue corresponding power utilization feature generating commands to target sub-devices indicated by different power utilization feature generating instructions at different moments, including:

Judging whether the current time is in an idle time period or not;

if the command is not in the idle time period currently, suspending the command issuing task, and waiting for the arrival of the idle time period;

if the current target sub-equipment is in the idle time period, executing the command issuing task, and issuing a power utilization characteristic generating command to the current target sub-equipment indicated by the command issuing task;

if the command issuing task is still in an idle time period after the current corresponding power utilization feature generation command is successfully issued and a first preset time period is reserved, continuing to execute the command issuing task, and issuing a power utilization feature generation command to the next target sub-device indicated by the command issuing task;

if the command issuing task fails to issue commands for a plurality of times in the second preset time period under the current corresponding power utilization characteristics, the command issuing task is suspended and the arrival of the next idle time period is waited.

Specifically, after the root device performs task scheduling and execution, the root device performs command issuing task when it is idle because the events that need to be processed by the root device are heavy and complex, for example, the events that need to be processed at the time of day freezing, month freezing zero point, etc. are more. The command issuing task is used for issuing power utilization characteristic generating commands to different target sub-devices.

If the current moment is not in the idle time period, the root device can suspend the command issuing task and wait for the arrival of the idle moment.

If the current moment is in the idle time period, the root device executes a command issuing task to issue a corresponding power utilization characteristic generating command to the current target sub-device.

If the command issuing task is successful in issuing the power utilization feature generation command to the current target sub-device, and the root device is still in the idle time period after the first preset time period, the root device can continue to execute the command issuing task to issue the power utilization feature generation command to the next target sub-device. The first preset duration may be set according to practical situations, which is not limited in this application. That is, the command issuing task has an execution cycle, and the command issuing task is executed once every one execution cycle. And if the execution period arrives at the moment not in the idle state, suspending the command issuing task and waiting for the arrival of idle time.

For example, in the idle time period, the command issuing task is executed once every one minute to issue the power utilization characteristic generating command to one target sub-device, and when the next task period (the period of other system tasks) arrives, the command issuing task is suspended to wait for the next idle time period, so that the situation that the terminal crashes and crashes because of busy tasks is avoided.

If the command issuing task is not in the idle time period after the current power utilization characteristic generation command is issued successfully, the command issuing task is suspended and the arrival of the next idle time period is waited.

In addition, if the command issuing task is in the idle state currently, the command issuing task is executed, but if the command issuing task is failed to be executed in a plurality of attempts, the command issuing task is suspended after the attempting time length is over a second preset time length, and the arrival of the next idle time period is waited.

In one embodiment, prior to step S100, the method further comprises: receiving a station area equipment member list of a target station area issued by a master station;

after S600, the method further comprises:

and carrying out matching verification on the root equipment and the sub-equipment in the power topological relation according to the member list of the platform area equipment.

Specifically, the information of the root device and the sub-device contained in the target platform area is recorded in the platform area device member table, after the construction of the power topological relation of the target platform area is completed, whether the power topological relation is complete or whether the power topological relation is wrong or not or whether the power topological relation is wrong such as the non-existent device member is checked according to the platform area device member table, and when the matching check fails, the error information can be reported to the master station. The error information includes redundant device member information and/or missing device member information and the like.

In one embodiment, after reporting the error information to the primary station, the method further comprises:

if a power utilization characteristic generating command supplemented by the main station is received, a corresponding power utilization characteristic generating command is supplemented to the sub-equipment which does not issue the command;

collecting real-time electricity utilization characteristic information of each piece of sub-equipment after the electricity utilization characteristic generation command is reissued;

determining membership between target sub-equipment indicated by the power utilization characteristic generation command and associated equipment according to real-time power utilization characteristic information of the sub-equipment under the same power utilization characteristic generation command;

taking root equipment as a root node, and obtaining paths from the root equipment to each piece of sub equipment through traversal according to membership corresponding to each piece of sub equipment;

Specifically, after receiving the error information reported by the root device, the master station analyzes whether the master station finishes issuing the power utilization characteristic generating instruction aiming at each piece of sub-equipment, and if the master station does not finish issuing the power utilization characteristic generating instruction, the master station supplements the corresponding power utilization characteristic generating instruction to the root device.

And if the root equipment receives the electricity utilization characteristic generation instruction which is reissued by the main station, reissuing a corresponding electricity utilization characteristic generation command to the sub-equipment which does not issue the instruction. And collecting real-time electricity utilization characteristic information of each piece of sub-equipment after the electricity utilization characteristic generation command is reissued.

The root device needs to construct the power topological relation again according to the real-time power utilization characteristic information collected after the power utilization characteristic generation command is issued. Therefore, the root device re-executes steps S300-S600. This can perfect correction of the power topology.

In one embodiment, after the match check, the method further comprises:

if the matching verification fails, verifying whether the matching verification has succeeded in issuing power utilization characteristic generation commands to all the sub-devices;

if the power utilization characteristic generation command is not successfully issued to all the sub-devices, the corresponding power utilization characteristic generation command is reissued to the sub-device which does not receive the power utilization characteristic generation command;

Specifically, the matching verification fails, and the root device verifies whether the root device itself completes issuing the power feature generation command to all the child devices, and whether the power feature generation command is issued successfully.

And if the fact that the power utilization characteristic generation command which is not successfully issued exists is detected, the corresponding power utilization characteristic generation command is reissued to the sub-equipment which does not receive the power utilization characteristic generation command. And collecting real-time electricity utilization characteristic information of each piece of sub-equipment after the electricity utilization characteristic generation command is reissued.

In one embodiment, the member list of the platform area equipment identifies the equipment members governed by the target platform area through a platform account identification mode, constructs the member list of the platform area equipment and sends the member list to the root equipment of the target platform area. The zone equipment member list is a zone equipment file of the target zone; the platform region sub-equipment member list is used for indicating the corresponding relation between the target platform region and the administrated equipment members; the device members may include, but are not limited to, smart terminals, measurement switches, smart meters, and the like.

In one embodiment, the table of zone device members is shown in table 2 below:

TABLE 2

The zone equipment member table in table 1 stores a zone serial number of a target zone, that is, a unique identifier, a table address of an intelligent terminal, that is, a root equipment, table addresses of measurement switches such as a measurement switch 1, a measurement switch 2 and a measurement switch 3, and table addresses of intelligent electric meters such as an intelligent electric meter 1, an intelligent electric meter 2, an intelligent electric meter 3 and an intelligent electric meter 4.

Of course, the devices governed by the platform area in the actual application scenario may not only include the intelligent terminal, the measurement switch and the intelligent ammeter, which is not limited in this application.

In addition, the root device and the sub device can realize power line communication through an HPLC technology (high-speed power line communication technology). The HPLC technology is a high-speed power line communication technology, the working frequency range of broadband high-speed power line communication facing the power meter reading comprises 2.4 MHz-5.6 MHz, 2 MHz-12 MHz, 0.7 MHz-3 MHz and 1.7 MHz-3 MHz, the broadband high-speed power line communication has relatively wider bandwidth, can provide data transmission rate of hundreds kbps to several Mbps, and the power line has relatively weaker noise in a high frequency band, and compared with the narrowband power line communication, the communication reliability and stability are obviously improved.

The application adopts characteristic current signal decoding and HPLC to carry out data transmission and report to realize the power topology identification of the transformer area. And a terminal issuing instruction scheduling algorithm is adopted, so that the accuracy and efficiency of issuing instructions are improved. And analyzing the father-son relationship of the equipment according to the electricity utilization characteristic information, and constructing an equipment topological relationship library. And generating a longest path algorithm according to the parent-child relationship, confirming each branch of the topological graph and finally generating a complete topology. And further confirming the accuracy of the topology identification of the platform region equipment by adopting a topology verification mode.

The method and the system can improve the rapidness and accuracy of topology identification, avoid the abnormal situation of excessive execution tasks of the terminal, and newly increase the longest path algorithm of the intelligent terminal database topology identification, and shorten the time of topology identification compared with the traditional master station in a characteristic current signal decoding mode. And the master station is compared with the retrieval of the terminal database, so that the accuracy of the electric power topological relation is ensured.

In one embodiment, prior to step S100, the method further comprises:

and broadcasting a timing command to each piece of sub-equipment to enable the root equipment and the managed sub-equipment to perform clock synchronization.

Specifically, the terminal (root device) performs a broadcast timing operation to the identification devices (sub-devices) such as the ammeter, the breaker, the measurement switch, and the like, and adopts a broadcast timing message format defined by a standard DL/T698.45 protocol and a DL/T645 protocol.

The communication modules of the sub-devices such as the electric energy meter, the measuring switch and the like monitor the self clock of the application layer broadcast timing message synchronization so as to realize the clock synchronization between the root device and the sub-device.

The synchronous clock can enable time between each piece of sub-equipment and root equipment to be synchronous, and potential membership between the equipment can be accurately judged.

In addition, the master station, the concentrator, the energy controller and other terminal equipment can also adopt the standard DL/T698.45 protocol to perform timing operation.

In one embodiment, the present application further provides an apparatus for identifying a power topology relationship, applied to a root device governed by a target platform, referring to fig. 5, the apparatus includes:

a command issuing module 100, configured to issue power utilization feature generation commands to each piece of sub-equipment in sequence;

the information collection module 200 is used for collecting real-time electricity utilization characteristic information of each piece of sub-equipment after the electricity utilization characteristic generation command is issued;

the membership determining module 300 is configured to determine membership between the target sub-device indicated by the power consumption feature generation command and the associated device according to real-time power consumption feature information of the sub-device under the same power consumption feature generation command, where the associated device includes a root device and a part of other sub-devices;

The path searching module 400 is configured to obtain, by traversing, a path from the root device to each piece of sub-device according to the membership corresponding to each piece of sub-device by using the root device as a root node;

the topology path determining module 500 is configured to select, from all paths from the root device to the same sub-device, a longest path as a topology path from the root device to the sub-device;

the topology map construction module 600 is configured to generate a power topology relationship of the target platform area according to a topology path from the root device to each of the sub-devices.

FIG. 6 illustrates an internal block diagram of a computer device in one embodiment. The computer device may specifically be a terminal or a server. As shown in fig. 6, the computer device includes a processor, a memory, and a network interface connected by a system bus. The memory includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system, and may also store a computer program which, when executed by a processor, causes the processor to implement the steps of the method embodiments described above. The internal memory may also have stored therein a computer program which, when executed by a processor, causes the processor to perform the steps of the method embodiments described above. It will be appreciated by those skilled in the art that the structure shown in fig. 6 is merely a block diagram of some of the structures associated with the present application and is not limiting of the computer device to which the present application may be applied, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, a computer device is provided comprising a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the steps of: issuing power utilization characteristic generation commands to each piece of sub-equipment in sequence;

In one embodiment, a computer readable storage medium is provided, storing a computer program which, when executed by a processor, causes the processor to perform the steps of:

Those skilled in the art will appreciate that the processes implementing all or part of the methods of the above embodiments may be implemented by a computer program for instructing relevant hardware, and the program may be stored in a non-volatile computer readable storage medium, and the program may include the processes of the embodiments of the methods as above when executed. Any reference to memory, storage, database, or other medium used in the various embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples represent only a few embodiments of the present application, which are described in more detail and are not thereby to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims

1. The method for identifying the power topological relation is applied to root equipment governed by a target platform area and is characterized by comprising the following steps:

collecting real-time electricity utilization characteristic information of each piece of sub-equipment after the electricity utilization characteristic generation command is issued;

determining potential membership between target sub-equipment indicated by the electricity characteristic generation command and associated equipment according to real-time electricity characteristic information of the sub-equipment under the same electricity characteristic generation command, wherein the associated equipment comprises root equipment and parts of other sub-equipment;

Taking the root equipment as a root node, and obtaining paths from the root equipment to each piece of sub equipment through traversal according to potential membership corresponding to each piece of sub equipment;

selecting the longest path from all paths from the root device to the same sub-device as a topological path from the root device to the sub-device;

and generating the power topological relation of the target platform area according to the topological path from the root equipment to each piece of sub equipment.

2. The method of claim 1, wherein the real-time power usage characteristic information includes a switching occurrence time of generating a characteristic current signal in the power grid using a local resistance switching device if the target sub-device is a target sub-device;

after the sequentially issuing power generation feature generation commands to the respective sub-devices, the method further comprises: recording the issuing time of each electricity utilization characteristic generation command;

the determining the potential membership between the target sub-device indicated by the electricity feature generation command and the associated device according to the real-time electricity feature information of the sub-device under the same electricity feature generation command comprises the following steps:

Determining target sub-equipment and associated equipment responding under the electricity utilization characteristic generation command according to the issuing time of the electricity utilization characteristic generation command, the switching occurrence time of the target sub-equipment and the identification time of the characteristic current signal, and determining potential membership between the target sub-equipment and the associated equipment indicated by the electricity utilization characteristic generation command according to the switching occurrence time of the responding target sub-equipment and the identification time of the associated equipment to the characteristic current signal.

3. The method of claim 1, wherein the sequentially issuing power feature generation commands to each of the sub-devices comprises:

4. A method according to claim 3, wherein said intermittently executing said command issuing task by means of task scheduling to issue corresponding power usage feature generation commands to target sub-devices indicated by different power usage feature generation instructions at different times comprises:

Judging whether the current time is in an idle time period or not;

5. The method of claim 1, wherein prior to said sequentially issuing power feature generation commands to each of the sub-devices, the method further comprises: receiving a station area equipment member list of a target station area issued by a master station;

after the generating the power topology relationship of the target zone according to the topology path of the root device to each sub-device, the method further comprises:

And carrying out matching verification on the root equipment and the sub-equipment in the power topological relation according to the platform area equipment member table.

6. The method of claim 5, wherein after the matching verification, the method further comprises:

determining potential membership between target sub-equipment indicated by the electricity characteristic generation command and associated equipment according to real-time electricity characteristic information of the sub-equipment under the same electricity characteristic generation command;

7. The method of claim 1, wherein prior to said sequentially issuing power feature generation commands to each of the sub-devices, the method further comprises:

and broadcasting a timing command to each piece of sub-equipment to enable the root equipment to perform clock synchronization with the managed sub-equipment.

8. An identification device of a power topological relation, which is applied to root equipment governed by a target platform region, and is characterized by comprising:

the potential membership determining module is used for determining potential membership between target sub-equipment indicated by the power utilization characteristic generation command and associated equipment according to real-time power utilization characteristic information of the sub-equipment under the same power utilization characteristic generation command, wherein the associated equipment comprises root equipment and parts of other sub-equipment;

the path searching module is used for taking the root equipment as a root node and obtaining paths from the root equipment to each piece of sub equipment through traversal according to potential membership corresponding to each piece of sub equipment;

A topology path determining module, configured to select a longest path from all paths from the root device to the same sub-device as a topology path from the root device to the sub-device;

and the topology diagram construction module is used for generating the power topology relation of the target area according to the topology path from the root equipment to each piece of sub equipment.

9. A computer readable storage medium storing a computer program, which when executed by a processor causes the processor to perform the steps of the method according to any one of claims 1 to 7.

10. A computer device comprising a memory and a processor, wherein the memory stores a computer program which, when executed by the processor, causes the processor to perform the steps of the method of any of claims 1 to 7.