Standardized detection method for fault indicator

Abstract

The invention provides a standardized detection method for a fault indicator, which belongs to the technical field of fault indicators and comprises the following steps of: 1, researching specifications and unification of a communication protocol, remote signaling judgment logic and a communication mode of the fault indicator; 2, researching a waveform compression method of the fault indicator; 3, investigating and analyzing the content of human intervention in the detection process of the fault indicator; 4, designing a fault indicator standardized detection scheme; according to the invention, fault indicators existing by different manufacturers are investigated and analyzed, and normal communication between the fault indicators and other equipment is ensured by researching and designing a unified communication mode; through formulation of a standardized design scheme, fault indicators of different manufacturers can be compatible and seamlessly connected in the aspects of communication and data interaction, and the reliability and stability of the system are improved.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of fault indicators, and particularly relates to a standardized detection method for fault indicators. Background Art

[0002] Fault indicators are suspended on high-voltage lines and continuously obtain current and voltage information of high-voltage lines through mutual inductors. Once a fault occurs in the line, the staff can quickly determine the fault point with the help of the alarm display of the fault indicator, so as to eliminate the fault.

[0003] However, there are problems such as inconsistent communication protocols, inconsistent remote signal judgment logics, and inconsistent communication methods among fault indicators from different manufacturers, which bring difficulties to the whole life cycle management work such as detection, installation, and operation and maintenance of fault indicators. The non-uniformity of equipment point tables affects the arrival inspection efficiency and issues related to cooperation with the main station: the inconsistent remote signal judgment logics, for example, the inconsistent sudden change amounts for short-circuit judgment, the inconsistent reset conditions for short-circuits, the inconsistent power-off confirmation times, the inconsistent sudden change amounts for grounding judgment, and whether to use sudden change or fixed value for current over-limit, etc., will all affect the accuracy of fault judgment of the entire system and are prone to situations such as missed judgment, misjudgment, and multiple judgments. It has an adverse impact on fault repair and increases the operation and maintenance workload: the inconsistent communication methods. Although fault indicators all have 4G (wireless communication and serial communication methods), the serial port types are not unified, and some manufacturers have added small wireless communication methods, Bluetooth communication methods, etc. A large number of operation and maintenance tools have greatly increased the on-site operation and maintenance difficulty and led to extremely low on-site operation and maintenance efficiency. Taking the operation and maintenance work as an example, each manufacturer has a set of its own operation and maintenance tools, which are inconvenient to use and have a relatively high technical threshold. On-site operation and maintenance require the support of manufacturer's technical personnel, bringing many difficulties and inconveniences to the operation and maintenance defect elimination work of fault indicators.

[0004] With the construction of modern intelligent distribution networks, the non-uniformity existing in fault indicators themselves seriously restricts the improvement of the practical level of distribution automation and the process of digital transformation of distribution networks. Summary of the Invention

[0005] The present invention mainly provides a standardized detection method for fault indicators to solve the technical problems mentioned in the above background art.

[0006] The technical solution adopted by the present invention to solve the above technical problems is as follows:

[0007] A standardized detection method for fault indicators, comprising the following steps:

[0008] Step 1: Research on the standardization and unification of the communication protocol, remote signal judgment logic, and communication method of the fault indicator;

[0009] Step 2: Research on the waveform compression method of the fault indicator;

[0010] Step 3: Investigate and analyze the content of human intervention during the detection of fault indicators;

[0011] Step 4: Design a standardized detection scheme for fault indicators based on the research results of Steps 1 to 3.

[0012] Furthermore, in the present invention, the specific steps for studying the fault indicator in Step 1 include:

[0013] Step1: Investigate and analyze the existing communication protocols and related standards of fault indicators, and integrate them;

[0014] Step2: Compare and integrate the remote signal judgment logics of fault indicators from different manufacturers;

[0015] Step3: Design the specifications of the communication method, including communication protocols and data transmission formats.

[0016] Furthermore, in the present invention, in Step 1, the specifications of the communication method need to meet the standards of the International Electrotechnical Commission (IEC).

[0017] Furthermore, in the present invention, the specific steps for studying the waveform compression method of the fault indicator in Step 2 include:

[0018] Step1: Investigate and analyze the existing waveform file formats of fault indicators:

[0019] Step2: Study the waveform compression algorithm of the fault indicator.

[0020] Furthermore, in the present invention, the waveform compression algorithm of the fault indicator needs to select an appropriate compression ratio according to the data characteristics of each cycle, and design the compressed data body format for each cycle.

[0021] Furthermore, in the present invention, when carrying out the standardized detection scheme for the fault indicator in Step 4, it is necessary to carry out the research on the standardized detection scheme on the basis of the standardized design scheme of the fault indicator and the unified waveform compression method, and at the same time combine the actual situation of the arrival inspection and on-site commissioning work of the fault indicator.

[0022] Furthermore, in the present invention, the arrival inspection and on-site commissioning work of the fault indicator can use the distribution network integrated test platform, which relies on the real-time digital simulation system to verify the performance and logic functions of the distribution feeder automation terminal.

[0023] Furthermore, in the present invention, the real-time digital simulation system uses Canadian RTDS equipment.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] This method conducts research and analysis on existing fault indicators from different manufacturers, understands the differences in communication protocols, remote signal judgment logics, and communication methods of fault indicators of various models and specifications; formulates a unified communication protocol for fault indicators to ensure that fault indicators of various models can exchange data through the same communication protocol; studies and designs remote signal judgment logics so that fault indicators can make fault judgments based on received signals and provide accurate fault information to operation and maintenance personnel; finally, through the research and design of a unified communication method, it ensures that normal communication can be carried out between fault indicators and other devices;

[0026] Through the formulation of a standardized design plan, fault indicators from different manufacturers can be mutually compatible and seamlessly connected in terms of communication and data interaction, improving the reliability and stability of the system.

[0027] The present invention will be explained and described in detail below in conjunction with the accompanying drawings and specific embodiments. Description of the Drawings

[0028] Figure 1 It is a flowchart of the detection method of the present invention. Specific Embodiments

[0029] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant accompanying drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a middle element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] Embodiment, please refer to the attached Figure 1 For a standardized detection method of a fault indicator, it includes the following steps:

[0033] Step 1: Research and analyze the communication protocols, remote signaling judgment logics, and communication methods of fault indicators, and unify and standardize them.

[0034] Step 2: Research the waveform compression method of fault indicators.

[0035] Step 3: Investigate and analyze the content of human intervention during the detection process of fault indicators.

[0036] Step 4: Design a standardized detection scheme for fault indicators based on the research results of Steps 1 to 3.

[0037] Furthermore, the specific steps for researching fault indicators in Step 1 include:

[0038] Step1: Research and analyze the existing communication protocols and related standards of fault indicators, and integrate them.

[0039] Step2: Compare and integrate the remote signaling judgment logics of fault indicators from different manufacturers.

[0040] Step3: Design the specifications for communication methods, including communication protocols and data transmission formats.

[0041] It should be noted that in this embodiment, with the continuous development of smart grid technology, as one of the key devices in the smart distribution network, the research and development of standardized operation and maintenance tools for fault indicators has also become one of the research hotspots. Early fault indicators mainly achieved fault diagnosis and indication functions through traditional electrical detection means. With the progress of sensing technology, communication technology, etc., modern fault indicators are gradually developing towards intelligence and automation, and can realize functions such as remote monitoring and fault location.

[0042] Furthermore, in Step 1, the specifications for communication methods need to meet the standards of the International Electrotechnical Commission (IEC).

[0043] It should be noted that in this embodiment, the theoretical basis for the research mainly comes from power system network communication technology and the working principle of fault indicators. Through experiments and research on fault indicators from different manufacturers, understand the characteristics and differences of their communication protocols, remote signaling judgment logics, and communication methods. At the same time, draw on relevant domestic and international standards and specifications, such as the standards of the International Electrotechnical Commission (IEC), etc., to formulate unified specifications for communication protocols and communication methods.

[0044] Furthermore, the specific steps for researching the waveform compression method of fault indicators in Step 2 include:

[0045] Step1: Research and analyze the existing waveform file formats of fault indicators.

[0046] Step 2: Research the waveform compression algorithm for fault indicators.

[0047] Furthermore, the waveform compression algorithm for fault indicators needs to select an appropriate compression ratio according to the data characteristics of each cycle, and design the format of the compressed data body for each cycle.

[0048] Furthermore, when carrying out the standardized detection scheme for fault indicators in Step 4, it is necessary to carry out research on the standardized detection scheme based on the standardized design scheme of fault indicators and the unified waveform compression method, and at the same time combine the actual situation of the arrival inspection and on-site commissioning work of fault indicators.

[0049] Furthermore, the arrival inspection and on-site commissioning work of fault indicators can use the distribution network integrated test platform, which relies on the real-time digital simulation system to verify the performance and logic functions of the distribution feeder automation terminal.

[0050] Furthermore, the real-time digital simulation system uses Canadian RTDS equipment.

[0051] It should be noted that in this embodiment, the integrated test platform uses RTDS real-time digital simulation technology to truly simulate the distribution network field operation environment. By configuring the distribution main station, communication, and terminal equipment, a complete distribution automation detection environment is built. The real-time simulation system of the distribution network integrated test system uses Canadian RTDS (Real-Time Digital Simulation System) equipment, which currently has 2 racks, can simulate up to 150 nodes at most, and has a total of 12 Angli power amplifiers. At the same time, the integrated test platform has also established a 5G distributed test system, which cooperates with the RTDS system to achieve distributed testing of the distribution network.

[0052] In addition, it should be noted that in this embodiment, the integrated test platform has an intelligent detection platform for distribution automation terminals, which realizes the verification of functions, performance, communication, and full-automatic closed-loop detection of distribution terminals.

[0053] And this platform has an automated detection platform for fault indicators, including a comprehensive simulation test system, an intelligent robot detection system, and an intelligent logistics warehousing system. By using comprehensive computer technology, artificial intelligence image recognition, automated assembly line technology, database technology, mechanical automation technology, intelligent warehousing technology, and scientific testing means, the functions and performance of various types of fault indicators can be detected.

[0054] This method has high feasibility and potential prospects:

[0055] (1) Market demand: Fault indicators play an important role in power equipment. There is a demand for a standardized design solution for fault indicators in the market. Relevant enterprises such as power equipment manufacturers will pay attention to the introduction of such a standardized design solution to improve product quality and user experience.

[0056] (2) Technical advantages: By researching and formulating a standardized design solution for fault indicators, problems such as the current non-uniformity and non-standardization in the design of fault indicators can be solved, and a more standardized and normalized design solution can be provided. This will make the use of fault indicators more convenient and reliable, and contribute to improving the operation efficiency and safety of the entire power equipment.

[0057] (3) Industry cooperation: The transformation of achievements requires cooperation with relevant enterprises, and the popularization and application also need the support and recognition of the relevant industries. Cooperative relationships can be established with power equipment manufacturers, power equipment maintenance companies, etc. to jointly promote the application and popularization of the standardized design solution for fault indicators.

[0058] The above exemplary description of the present invention is made in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A fault indicator standardized detection method, characterized in that: The following steps are involved: Step 1: Study the standardization and unification of fault indicator communication protocol, remote signaling judgment logic, and communication methods; Step 2: Study the fault indicator waveform compression method; Step 3: Investigate and analyze the content of human intervention in the fault indicator detection process; Step 4: Based on the research results of steps 1 to 3, design a standardized detection plan for fault indicators.

2. A fault indicator standardized detection method according to claim 1, characterized in that: The specific steps of studying the fault indicator in step 1 include: Step 1: Investigate and analyze the communication protocols and related standards of existing fault indicators and integrate them; Step 2: Compare and integrate the remote signaling judgment logic of fault indicators from different manufacturers; Step 3: Design the specifications of the communication method, including communication protocol and data transmission format.

3. A fault indicator standardized detection method according to claim 2, characterized in that: In the step 1, the specification of the communication method needs to meet the standards of the International Electrotechnical Commission (IEC).

4. A fault indicator standardized detection method according to claim 3, characterized in that: In the step 2, the specific steps of studying the fault indicator waveform compression method include: Step 1: Investigate and analyze the existing fault indicator waveform file format: Step 2: Study the fault indicator waveform compression algorithm.

5. A fault indicator standardized detection method according to claim 1, characterized in that: The fault indicator waveform compression algorithm needs to select a suitable compression rate according to the data characteristics of each cycle and design the compressed data format of each cycle.

6. A fault indicator standardized detection method according to claim 1, characterized in that: In the fourth step of carrying out the standardized detection scheme for the fault indicator, it is necessary to carry out the standardized detection scheme research based on the standardized design scheme for the fault indicator and the unified waveform compression method, while combining the actual situation of the arrival inspection and on-site commissioning of the fault indicator.

7. A fault indicator standardized detection method according to claim 6, characterized in that: The arrival inspection and on-site debugging of the fault indicator can use the distribution network integration test platform, which relies on a real-time digital simulation system to carry out performance and logical function verification of the distribution feeder automation terminal.

8. A fault indicator standardized detection method according to claim 7, characterized in that: The real-time digital simulation system adopts Canadian RTDS equipment.

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