Fault early warning method and device for low-voltage wiring

Abstract

The invention discloses a fault early warning method and device for low-voltage wiring. The method comprises the following steps: carrying out leakage protection communication and / or Ethernet communication connection according to an inner transformer area of a to-be-tested transformer; aiming at the electric leakage protection communication, traversing and sending a to-be-forwarded power generation emergency interface ID and data, monitoring in each path of receiving electric leakage protection line, recording whether a monitoring result of the to-be-forwarded power generation emergency interface ID and data is received or not, or aiming at Ethernet communication, traversing a source address and a destination address and sending a message, monitoring at each destination address, and recording whether a monitoring result is received or not; and exporting sending and monitoring results, comparing the monitoring result with the definition of the communication matrix, and analyzing whether the gateway of the to-be-tested transformer forwards the power supply log and the message according to the definition of the communication matrix. According to the improved mechanical function verification test method, the test efficiency and accuracy can be greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of electric power technology, and in particular to a fault warning method and device for low-voltage wiring. Background Art

[0002] For power configuration, dual power supply is used in 10kV lines, switch stations, distribution rooms and other equipment, but low-voltage lines are not powered by dual power supply. Since the voltage of low-voltage lines is lower, they are generally powered by transformer stations. When the transformer station stops operating due to a fault, low-voltage users can only have power outages, which greatly reduces the power supply reliability of users.

[0003] At present, load data is mainly obtained by querying the load data of the line section in the system background or using a multimeter for on-site testing. It is impossible to timely understand the line operation status after changing the connection method, which greatly increases the workload and leads to low work efficiency. Summary of the invention

[0004] To achieve the above objectives, this application provides the following technical solutions:

[0005] According to a first aspect of the present invention, the present invention claims protection for a fault early warning method for low voltage wiring, comprising:

[0006] Conduct leakage protection communication and / or Ethernet communication connection according to the transformer inner station area of ​​the transformer to be tested;

[0007] For the leakage protection communication, traverse the power generation emergency interface ID and data to be forwarded and send them, monitor each receiving leakage protection line, and record whether the monitoring result of the power generation emergency interface ID and data to be forwarded is received, or for Ethernet communication, traverse the source address and destination address to send messages, monitor each destination address, and record whether the monitoring result is received;

[0008] The sending and monitoring results are exported, the monitoring results are compared with the communication matrix definition, and it is analyzed whether the gateway of the transformer to be tested forwards the power supply log and the message according to the definition of the communication matrix.

[0009] Furthermore, for the leakage protection communication, the power generation emergency interface ID and data to be forwarded are traversed and sent, each receiving leakage protection line is monitored, and the monitoring result of the power generation emergency interface ID and data to be forwarded is recorded whether it is received, and further includes:

[0010] For leakage protection communication, on the preset sending leakage protection line, traverse the power generation emergency interface ID, send non-existent communication data, and then filter the data just sent on other receiving leakage protection lines to obtain data that is allowed to be forwarded.

[0011] Furthermore, the exporting sending and monitoring results specifically includes:

[0012] Through the Z leakage protection PRO data screening function, in the non-sending power supply log leakage protection circuit, by screening the sent data power supply log content, the data power supply log and power generation emergency interface ID successfully forwarded to the leakage protection circuit are obtained.

[0013] Furthermore, the monitoring result is compared with the communication matrix definition to analyze whether the gateway of the transformer to be tested forwards the power supply log and message according to the definition of the communication matrix, specifically including:

[0014] The data filtered out in the previous step is compared with the definition of the communication matrix. If there are power generation emergency interface IDs with different contents, the power generation emergency interface IDs with different contents are verified separately.

[0015] According to a second aspect of the present invention, the present invention claims protection for a fault warning device for low voltage wiring, comprising:

[0016] one or more processors;

[0017] A memory having one or more programs stored thereon, when the one or more programs are executed by the one or more processors, the one or more processors implement the fault warning method for low-voltage wiring.

[0018] Beneficial effects:

[0019] The present invention provides leakage protection communication and / or Ethernet communication connection according to the transformer inner station area of ​​the transformer to be tested; for the leakage protection communication, traverse the power generation emergency interface ID and data to be forwarded and send them, monitor at each receiving leakage protection line, and record whether the monitoring result of the power generation emergency interface ID and data to be forwarded is received, or for Ethernet communication, traverse the source address and destination address to send messages, monitor at each destination address, and record whether the monitoring result is received; derive the sending and monitoring results, compare the monitoring results with the communication matrix definition, and analyze whether the gateway of the transformer to be tested forwards the power supply log and message according to the definition of the communication matrix. The present invention improves the mechanical function verification test method, which can greatly improve the test efficiency and accuracy. . BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A flowchart of a fault warning method for low-voltage wiring as claimed in an embodiment of the present application. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] The terms "first", "second" and "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second" and "third" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications in the embodiments of the present application (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] In the transformer internal area based on leakage protection and / or leakage protection-FD bus, most ECUs and domain controllers will communicate through leakage protection and / or leakage protection-FD bus. The transformer gateway in this type of structure mainly has leakage protection and / or leakage protection-FD bus interface. The leakage protection gateway should establish a communication matrix between various leakage protection networks, strictly forward power supply logs according to the predefined DBC rules, and cannot forward any leakage protection power supply logs that do not meet the DBC definition.

[0025] In the Ethernet-based transformer internal area, most ECUs and domain controllers communicate through Ethernet. The transformer gateway in this type of structure mainly has an Ethernet interface. For transformer Ethernet communication, the transformer gateway should forward messages according to the predefined access control lists (ACLs). The access control elements in the access control list should mainly include the source IP address, destination IP address, protocol type (such as TCP, UDP, I CMP, etc.), protocol source port, and protocol destination port.

[0026] According to the first embodiment of the present invention, referring to the attached Figure 1 The present invention claims a fault early warning method for low voltage wiring, characterized in that it includes:

[0027] Conduct leakage protection communication and / or Ethernet communication connection according to the transformer inner station area of ​​the transformer to be tested;

[0028] For the leakage protection communication, traverse the power generation emergency interface ID and data to be forwarded and send them, monitor each receiving leakage protection line, and record whether the monitoring result of the power generation emergency interface ID and data to be forwarded is received, or for Ethernet communication, traverse the source address and destination address to send messages, monitor each destination address, and record whether the monitoring result is received;

[0029] The sending and monitoring results are exported, the monitoring results are compared with the communication matrix definition, and it is analyzed whether the gateway of the transformer to be tested forwards the power supply log and the message according to the definition of the communication matrix.

[0030] Furthermore, for the leakage protection communication, the power generation emergency interface ID and data to be forwarded are traversed and sent, each receiving leakage protection line is monitored, and the monitoring result of the power generation emergency interface ID and data to be forwarded is recorded whether it is received, and it also includes:

[0031] For leakage protection communication, on the preset sending leakage protection line, traverse the power generation emergency interface ID, send non-existent communication data, and then filter the data just sent on other receiving leakage protection lines to obtain data that is allowed to be forwarded.

[0032] Among them, in this embodiment, for leakage protection communication, on a certain leakage protection (for example, chassis leakage protection), the power generation emergency interface ID is traversed from the power generation emergency interface ID 0X000 to the power generation emergency interface ID 0X7FF, and non-existent communication data, such as 0011223344556677, is sent, and then on other leakage protections (except chassis leakage protection, such as transformer body leakage protection), data is screened for the data just sent 0011223344556677, so as to obtain data that can be forwarded.

[0033] Furthermore, the exporting sending and monitoring results specifically include:

[0034] Through the Z leakage protection PRO data screening function, in the non-sending power supply log leakage protection circuit, by screening the sent data power supply log content, the data power supply log and power generation emergency interface ID successfully forwarded to the leakage protection circuit are obtained.

[0035] Furthermore, the monitoring result is compared with the communication matrix definition to analyze whether the gateway of the transformer to be tested forwards the power supply log and message according to the definition of the communication matrix, specifically including:

[0036] The data filtered out in the previous step is compared with the definition of the communication matrix. If there are power generation emergency interface IDs with different contents, the power generation emergency interface IDs with different contents are verified separately.

[0037] According to a second embodiment of the present invention, the present invention claims protection for a fault warning device for low-voltage wiring, comprising:

[0038] one or more processors;

[0039] A memory having one or more programs stored thereon, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the fault warning method for low-voltage wiring.

[0040] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0041] In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of software functional units. The above is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of this application, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the present application.

[0042] The specific implementation methods of the invention are described in detail above, but they are only examples, and the present application is not limited to the specific implementation methods described above. For those skilled in the art, any equivalent modification or substitution of the invention is also within the scope of the present application, and therefore, the equalization, modification, and improvement made without departing from the spirit and principle of the present application should be included in the scope of the present application.

Claims

1. A fault warning method for low voltage wiring, characterized in that: include: Conduct leakage protection communication and / or Ethernet communication connection according to the transformer inner station area of ​​the transformer to be tested; For the leakage protection communication, traverse the power generation emergency interface ID and data to be forwarded and send them, monitor each receiving leakage protection line, and record whether the monitoring result of the power generation emergency interface ID and data to be forwarded is received, or for Ethernet communication, traverse the source address and destination address to send messages, monitor each destination address, and record whether the monitoring result is received; The sending and monitoring results are exported, the monitoring results are compared with the communication matrix definition, and it is analyzed whether the gateway of the transformer to be tested forwards the power supply log and the message according to the definition of the communication matrix.

2. A fault warning method for low voltage wiring according to claim 1, characterized in that: For the leakage protection communication, traverse the power generation emergency interface ID and data to be forwarded and send them, monitor each receiving leakage protection line, and record whether the monitoring result of the power generation emergency interface ID and data to be forwarded is received, and also includes: For leakage protection communication, on the preset sending leakage protection line, traverse the power generation emergency interface ID, send non-existent communication data, and then filter the data just sent on other receiving leakage protection lines to obtain data that is allowed to be forwarded.

3. A fault warning method for low voltage wiring according to claim 1, characterized in that: The export sending and monitoring results specifically include: Through the Z leakage protection PRO data screening function, in the non-sending power supply log leakage protection circuit, by screening the sent data power supply log content, the data power supply log and power generation emergency interface ID successfully forwarded to the leakage protection circuit are obtained.

4. A fault warning method for low voltage wiring as claimed in claim 1, characterized in that: The monitoring result is compared with the communication matrix definition to analyze whether the gateway of the transformer to be tested forwards the power supply log and message according to the definition of the communication matrix, specifically including: The data filtered out in the previous step is compared with the definition of the communication matrix. If there are power generation emergency interface IDs with different contents, the power generation emergency interface IDs with different contents are verified separately.

5. A fault warning device for low voltage wiring, characterized in that: include: one or more processors; A memory having one or more programs stored thereon, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the fault warning method for low-voltage wiring according to any one of claims 1 to 4.

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