A method for fault analysis of zone Ⅳ signals in zone Ⅰ based on data penetration

Abstract

The present invention relates to a method for fault analysis and judgment of signals from zone IV in zone I based on data communication. The present invention solves the problems of the prior art. The key points of its technical solution are as follows: comprising the following steps: 1. creating a fault indicator model and a ledger in a power grid resource business platform, completing the connection in a single-line diagram, and simultaneously pushing the model to the master stations of zones I and IV through the single-line diagram change process; 2. distinguishing between ordinary switches and intelligent switches, and simultaneously creating intelligent switch models and ledgers in the power grid resource business platform; 3. adding system graphic transmission from zone I to zone IV, automatically triggering the transmission when the zone I graphic changes, and automatically updating the zone IV system diagram; 4. implementing a fault analysis and judgment method based on a distribution transformer power loss signal, and performing analysis and judgment according to the analysis and judgment start conditions, judgment and analysis basis, and fault analysis and judgment processing logic.

Description

Technical Field

[0001] The present invention relates to a fault analysis and judgment method, in particular to a method for realizing fault analysis and judgment in zone I based on data from zones I and IV and signals from zone IV. Background Art

[0002] The DTU operating data of the distribution network lines in Zhejiang Province is collected and controlled by the master station system of Distribution Automation Zone I. The data of intelligent switches, distribution transformers, and fault indicators are transmitted to the master station system of Distribution Automation Zone IV via wireless communication.

[0003] At present, the data interaction interface between the distribution automation zone I master station system and the distribution automation zone IV master station system has been opened. The distribution automation zone I master station system sends DTU operation data to the distribution automation zone IV master station system in real time. The distribution automation zone IV master station system sends real-time pointer flipping action, intelligent switch action, and distribution transformer power outage and restoration signal to the distribution automation zone I master station system, which has preliminarily realized the data connection between the zone I and zone IV master stations.

[0004] Because the previous PMS2.0 could not provide a fault indicator model, the current model uses a connection to the Zone IV master station, pushing the full ledger to the Zone I master station daily. The Zone I master station then manually connects to the model, resulting in a huge maintenance workload and impracticality. The intelligent switch status is pushed from Zone IV to Zone I via position change, without scheduled section push. If the position change transmission fails, it must wait until the next position change to be corrected. This can easily cause the switch status between the Zone I and Zone IV master stations to become out of sync, impacting scheduling applications. Furthermore, the system lacks a dedicated intelligent switch model, making it impossible to distinguish it from an ordinary switch. The transmission delay from Zone IV to Zone I via the reverse isolation device is approximately 2 minutes, primarily involving three types of information: intelligent switches, fault indicators, and distribution transformer outage and restoration information. This fails to meet the real-time requirements for fault information, impacting fault analysis.

[0005] Summarize:

[0006] Although data integration has been achieved between Zones I and IV, analysis shows that this integration serves only the purpose of information exchange and falls short of achieving application integration. First, due to an ineffective solution to the fault indicator model issue, fault information from Zone IV is only fully synchronized to Zone I and is unusable. The relevant model and fault indicator action information are not visible on the Zone I single-line diagram, and no correspondence is achieved between the two. Second, the intelligent switch telesignaling section is not integrated, posing the risk of inconsistent intelligent switch status between the two systems. Third, while Zone I's 5200 currently provides fault indicator and intelligent switch telesignaling information, it lacks rigorous, visual fault analysis capabilities to support dispatch applications. This makes it impossible to effectively support the commander-centric fault repair model. Summary of the Invention

[0007] In view of the problem that the above technical solution cannot effectively support the fault repair mode with the commander as the core, the present invention provides a fault analysis method for the signal of zone IV in zone I based on data penetration.

[0008] The technical solution adopted by the present invention to solve the technical problem is: a method for fault analysis and judgment of zone IV signals in zone I based on data penetration, comprising the following steps:

[0009] 1. Create a fault indicator model and ledger in the power grid resource business platform, complete the connection in the single-line diagram, and push it to the master stations of areas I and IV simultaneously through the single-line diagram change process;

[0010] Second, differentiate between ordinary switches and smart switches, and simultaneously create smart switch models and ledgers in the power grid resource business platform; Third, increase the transmission of system graphics from Area I to Area IV, automatically trigger the transmission when the Area I graphics change, and automatically update the IV system diagram;

[0011] 4. The implementation method of fault analysis based on the distribution transformer power loss signal is to conduct analysis according to the analysis starting conditions, judgment analysis basis and fault analysis processing logic.

[0012] The present invention relies on the power grid resource middle station, and through the connection of the OPEN5200 system of the distribution automation of Zone I and the distribution automation master station system of Zone IV, realizes the same-source maintenance of fault indicators, intelligent switches, and system diagrams based on the middle station; optimizes the data transmission from Zone IV to Zone I; and realizes the fault analysis function of the Zone I master station. At the same time, the present invention is based on the fault analysis of the power loss signal of the distribution transformer. The operation data interface of the distribution automation zone 4 master station and the distribution automation zone 1 master station involved in this project mainly consists of three parts: the intelligent switch action interface, the distribution transformer power-off and power-restore action interface, and the finger flip action interface. Among them, the intelligent switch action interface and the distribution transformer power-off and power-restore action interface, the two master stations are modeled based on the same source model, and perform operation data interaction. The finger flip action interface needs to import the model from the distribution automation zone 4 master station, and then perform operation data handover on this basis. At the same time, the fault indicator ledger interface transformation is completed, and the fault indicator ledger parsing interface is developed to parse the full amount of fault indicator ledger information pushed by the distribution automation zone four master station system, judge the addition, deletion and modification of the fault indicator ledger, and parse the fault indicator attachment relationship in the ledger to perform automatic attachment operations of the fault indicator. The present invention can effectively deal with the problem of the fault indicator model. Not only is the fault information of zone IV fully synchronized to zone I, but the relevant model and fault indicator action information can also be seen on the single-line diagram of zone I, realizing the correspondence between the two. The intelligent switch telemetering section is connected to eliminate the risk of inconsistent intelligent switch status of the two systems. Relying on the power grid resource center, the present invention realizes model homology, data synchronization, and application optimization by connecting the distribution automation OPEN5200 system of zone I and the distribution automation master station system of zone IV, supporting efficient coordination of distribution network operation control and fault handling with reliability as the core of operation inspection and dispatching.

[0013] Preferably, the starting condition for analysis and judgment is a power failure signal of the distribution transformer.

[0014] Preferably, the judgment and analysis basis includes a complete topology relationship, a distribution transformer power failure signal in the topology, and a distribution line fault indicator signal.

[0015] As an optimization, fault analysis and processing logic: the server relay_warn receives the remote signal of power loss of the distribution transformer, waits for a predetermined time, and starts analysis;

[0016] After searching for possible tripped switches, a fault analysis message is sent to daEar. After receiving the message, daEar begins to locate the fault and generate a corresponding strategy, which is written into the database. It also launches a graphical and interface program to prompt the dispatcher.

[0017] The search logic of the trip switch is to use the existing distribution transformer power failure signal to perform topology, and find the nearest upstream switch that can cover all distribution transformer power failure signals and consider it as the trip switch.

[0018] Preferably, in addition to analyzing the distribution transformer power loss signal, the fault analysis function will also preferably perform distribution transformer power loss information completion on the fault that has occurred. When receiving the distribution transformer power loss signal, it will first search for the faults that have occurred, and search whether there is a signal that will cause the distribution transformer power loss within the set time. If a fault that will cause the distribution transformer power loss has occurred, it is considered that the distribution transformer power loss signal received this time is a delayed signal generated by the last fault. The fault caused by the distribution transformer power loss signal will not be re-analyzed, but the distribution transformer power loss signal will be updated to the judgment basis of the last fault, thereby completing the information completion function for the fault that has occurred; if the distribution transformer power loss signal already exists in the fault information, no operation will be performed and the processing of the distribution transformer power loss signal will be abandoned.

[0019] Preferably, in step 2, ordinary switches and smart switches are distinguished, and the smart switch model and ledger are created simultaneously in the power grid resource business platform. The smart switch model and ledger are maintained in the same source, and the attribute definitions of 4G, 5G smart switches and ordinary switches are distinguished; the switch status is added in the transmission interface from Area IV to Area I / Area I to Area IV, and prompts are given for inconsistencies and a list is provided.

[0020] As a preference, in step four, the switch and knife position change information transmitted from zone I is combined to further improve the power outage assessment, check and optimize the power outage range, and at the same time, a dynamic coloring function for the power outage range is added to the zone IV master station, and the coloring of the power outage range is automatically updated according to the power restoration information and changes in the switch status.

[0021] The substantial effect of the present invention is as follows: the present invention relies on the power grid resource middle platform, and through the connection of the distribution automation OPEN5200 system in area I and the distribution automation master station system in area IV, realizes model homology, data synchronization, and application optimization, and supports efficient coordination of distribution network operation control and fault handling with reliability as the core in operation, inspection, and dispatching. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 , is a schematic diagram of a benchmark test targeting overhead lines according to this embodiment;

[0023] Figure 2 , is a schematic diagram of a fault handling interface of this embodiment. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described in detail below through specific embodiments.

[0025] Example 1:

[0026] A method for fault analysis of zone IV signals in zone I based on data penetration includes the following steps:

[0027] 1. Create a fault indicator model and ledger in the power grid resource business platform, complete the attachment in the single-line diagram, and push it to the main stations of areas I and IV at the same time through the single-line diagram change process.

[0028] 2. Distinguish between ordinary switches and smart switches, and create smart switch models and ledgers in the power grid resource business at the same time; In step 2, distinguish between ordinary switches and smart switches, and create smart switch models and ledgers in the power grid resource business at the same time, maintain the smart switch models and ledgers in the same source, and distinguish the attributes of 4G, 5G smart switches and ordinary switches; add their switch status in the transmission interface from Area IV to Area I / Area I to Area IV, prompt for inconsistencies and provide a list.

[0029] 3. Add system graphics transmission from Area I to Area IV, automatically trigger transmission when Area I graphics change, and automatically update Area IV system graphics.

[0030] 4. Fault analysis and judgment based on distribution transformer power failure signal: The system receives power failure signals from three distribution transformers: test01, test02, and test03 (see Appendix). Figure 1), analyze the power failure signal, and then launch the fault processing interface. The fault analysis basis of the interface will display the fault indicator action and the distribution transformer power failure action signal in the interface to assist the dispatcher to view. The starting condition for the analysis is the distribution transformer power failure signal. The judgment and analysis basis includes the complete topological relationship, the distribution transformer power failure signal in the topology, and the distribution line fault indicator signal. Fault analysis and processing logic: the server relay_warn receives the remote signal of the distribution transformer power failure, waits for the scheduled time, and starts the analysis;

[0031] After searching for possible tripped switches, a fault analysis message is sent to daEar. After receiving the message, daEar begins to locate the fault and generate a corresponding strategy, which is written into the database. It also launches a graphical and interface program to prompt the dispatcher.

[0032] The search logic of the trip switch is to use the existing distribution transformer power failure signal to perform topology, and find the nearest upstream switch that can cover all distribution transformer power failure signals and consider it as the trip switch. In step 4, combined with the switch and knife position information transmitted in area I, the power outage analysis is further improved, the power outage range is checked and optimized, and at the same time, the power outage range dynamic coloring function is added to the main station in area IV, and the power outage range is automatically updated according to the power restoration information and the change of the switch status. In addition to analyzing the distribution transformer power failure signal, the fault analysis function will also complete the distribution transformer power failure information of the fault that has occurred (see Appendix Figure 2 The distribution transformer power loss information supplement for the fault that has occurred includes: when the distribution transformer power loss signal is received, the faults that have occurred will be searched first, and whether there is a signal that will cause the distribution transformer power loss within the set time. If a fault that will cause the distribution transformer power loss has occurred, it is considered that the distribution transformer power loss signal received this time is a delayed signal generated by the previous fault. The fault caused by the distribution transformer power loss signal will not be re-analyzed, but the distribution transformer power loss signal will be updated to the judgment basis of the previous fault, thereby completing the information supplement function for the fault that has occurred; if the distribution transformer power loss signal already exists in the fault information, no operation will be performed and the processing of the distribution transformer power loss signal will be abandoned.

[0033] This embodiment relies on the power grid resource middle platform and connects the OPEN5200 distribution automation system in Area I and the distribution automation master station system in Area IV to achieve model homology, data synchronization, and application optimization, supporting efficient coordination of distribution network operation control and fault handling with reliability as the core of operation, inspection, and dispatching.

[0034] The embodiment described above is only a preferred solution of the present invention and does not limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solution described in the claims.

Claims

1. A method for fault analysis of zone IV signals in zone I based on data penetration, characterized in that: The following steps are involved:

1. Create a fault indicator model and ledger in the power grid resource business platform, complete the connection in the single-line diagram, and push it to the master stations of areas I and IV simultaneously through the single-line diagram change process; 2. Differentiate between ordinary switches and smart switches, and create smart switch models and ledgers simultaneously in the power grid resource business platform; 3. Added system graphics transmission from Area I to Area IV. Automatically trigger the transmission when the graphics in Area I change, and automatically update the system graphics in Area IV.

4. The implementation method of fault analysis based on the distribution transformer power loss signal is to conduct analysis according to the analysis starting conditions, judgment analysis basis and fault analysis processing logic.

2. The method for fault analysis of zone IV signals in zone I based on data penetration according to claim 1 is characterized in that: The starting condition is judged to be the power failure signal of the distribution transformer.

3. The method for fault analysis of zone IV signals in zone I based on data penetration according to claim 2 is characterized in that: The judgment and analysis are based on the complete topological relationship, the distribution transformer power failure signal in the topology, and the distribution line fault indicator signal.

4. The method for fault analysis of zone IV signals in zone I based on data penetration according to claim 3 is characterized in that: Fault analysis and processing logic: The server relay_warn receives the remote signal of the distribution transformer power loss, waits for a predetermined time, and begins analysis; After searching for possible tripped switches, a fault analysis message is sent to daEar. After receiving the message, daEar begins to locate the fault and generate a corresponding strategy, which is written into the database. It also launches a graphical and interface program to prompt the dispatcher. The search logic of the trip switch is to use the existing distribution transformer power failure signal to perform topology, and find the nearest upstream switch that can cover all distribution transformer power failure signals and consider it as the trip switch.

5. The method for fault analysis of zone IV signals in zone I based on data penetration according to claim 4 is characterized in that: In addition to analyzing the distribution transformer power failure signal, the fault analysis function also supplements the distribution transformer power failure information of the fault that has occurred.

6. The method for fault analysis of zone IV signals in zone I based on data penetration according to claim 5 is characterized in that: The distribution transformer power loss information completion for a fault that has occurred includes: when a distribution transformer power loss signal is received, the previous faults will be searched first to see if there is a signal that will cause the distribution transformer power loss within a set time. If a fault that will cause the distribution transformer power loss has already occurred, the distribution transformer power loss signal received this time is considered to be a delayed signal generated by the previous fault. The fault caused by the distribution transformer power loss signal will not be re-analyzed, but the distribution transformer power loss signal will be updated to the judgment basis of the previous fault, thereby completing the information completion function for the fault that has occurred; if the distribution transformer power loss signal already exists in the fault information, no operation will be performed and the processing of the distribution transformer power loss signal will be abandoned.

7. The method for fault analysis of zone IV signals in zone I based on data penetration according to claim 6 is characterized in that: In step 2, ordinary switches and smart switches are distinguished, and the smart switch model and ledger are created simultaneously in the power grid resource business. The smart switch model and ledger are maintained in the same source, and the attribute definitions of 4G, 5G smart switches and ordinary switches are distinguished; their switch status is added in the transmission interface from Area IV to Area I / Area I to Area IV, and any inconsistencies are prompted and a list is provided.

8. The method for fault analysis of zone IV signals in zone I based on data penetration according to claim 7 is characterized in that: In step 4, combined with the switch and knife position change information transmitted from Zone I, the power outage analysis is further improved, and the power outage range is checked and optimized. At the same time, a dynamic coloring function for the power outage range is added to the Zone IV master station, and the coloring of the power outage range is automatically updated according to the power restoration information and changes in the switch status.

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