技术领域technical field
本发明涉及数据传输领域,尤其涉及故障录波数据传输领域,具体是指一种实现故障录波数据传输时同步在线分析的通讯方法。The invention relates to the field of data transmission, in particular to the field of fault recording data transmission, and specifically refers to a communication method for realizing synchronous online analysis during fault recording data transmission.
背景技术Background technique
电网故障录波联网系统主要功能是收集和管理电网中各厂站中的故障录波器在电网故障时刻信息,包含故障录波数据和动作报告、保护定值等信息。以及对这些数据、信号的综合、统计、计算和分析处理。故障录波联网系统主要由设在网、省、市、地区调度中心的主站和若干设在变电站、发电厂各类故障录波器通过电力系统通信网络组成。The main function of the power grid fault recorder networked system is to collect and manage fault recorders in each plant in the power grid at the time of grid fault, including fault record data, action reports, protection settings and other information. As well as the synthesis, statistics, calculation and analysis of these data and signals. The network fault recording system is mainly composed of the main station located in the network, province, city, and regional dispatch center and several fault recorders located in substations and power plants through the power system communication network.
在上述各类数据中电力系统变电站内故障录波数据极其重要,其调取与分析展示对于用户来说具有非常重要的意义,它描述了故障时刻系统中离散的动作值及连续性量测值如故障电流或电压之间的关系,通过对故障录波数据的分析可以为电力系统故障定位和处理提供可靠的依据,可以有效提高故障判断的准确性和及时性。录波联网系统由主站和故障录波设备通过电力系统通信网络互联组成。由于产生及存储故障录波数据的设备都运行在远方变电站或电厂,随着故障录波器在采样频率与采集通道数的提升,使得录波数据越来越大,但因通讯传输网络的限制和应用层规约的约束,这样在大录波数据传输时将花费更多的时间来传输,而电网故障后要求快速的确定故障原因,因此较慢的传输时间与快速分析录波数据的要求存在一定矛盾。为解决此问题,电力系统故障时通常采用的是调用“简要录波”的方式,即只传输电网故障启动后的前三个周期的录波,由于简要录波数据并不完整,根据此信息判断出的故障可能存在不准确问题。Among the above-mentioned types of data, the fault recording data in the power system substation is extremely important, and its retrieval, analysis and display are of great significance to users. It describes the discrete action values and continuity measurement values in the system at the time of faults For example, the relationship between fault current or voltage, through the analysis of fault recording data, can provide reliable basis for power system fault location and treatment, and can effectively improve the accuracy and timeliness of fault judgment. The wave recording networking system is composed of the main station and fault recording equipment interconnected through the power system communication network. Since the devices that generate and store fault recording data are all operating in remote substations or power plants, with the increase in the sampling frequency and number of acquisition channels of fault recorders, the recording data is getting larger and larger, but due to the limitation of communication transmission network And the constraints of the application layer protocol, so it will take more time to transmit large wave recording data, and after the power grid failure, it is required to quickly determine the cause of the fault, so there are requirements for slower transmission time and fast analysis of wave recording data Must be contradictory. In order to solve this problem, when the power system fails, the method of calling "simple wave recording" is usually used, that is, only the first three cycles of wave recording after the power grid fault starts are transmitted. Since the brief wave recording data is incomplete, according to this information The judged fault may be inaccurate.
发明内容Contents of the invention
本发明的目的是克服了上述现有技术的缺点,提供了一种能够实现更少地占用有限的数据网络带宽、具有更高的传输效率、故障录波数据分步传输同时进行在线分析与展示、具有更好的实时性、适用于大规模推广应用的实现故障录波数据传输时同步在线分析的通讯方法。The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and to provide a method that can achieve less occupation of limited data network bandwidth, higher transmission efficiency, step-by-step transmission of fault recording data and online analysis and display , A communication method that has better real-time performance and is suitable for large-scale popularization and application to realize synchronous online analysis during fault recording data transmission.
为了实现上述目的,本发明的实现故障录波数据传输时同步在线分析的通讯方法具有如下构成:In order to achieve the above object, the communication method for synchronous online analysis when realizing fault recording data transmission of the present invention has the following composition:
该实现故障录波数据传输时同步在线分析的通讯方法,其主要特点是,所述的方法包括以下步骤:The main feature of the communication method for synchronous on-line analysis during fault recording data transmission is that the method includes the following steps:
(1)故障录波器启动生成故障录波数据后通知录波联网系统主站;(1) After the fault recorder starts to generate fault record data, it notifies the master station of the record network system;
(2)所述的录波联网系统主站向所述的故障录波器发送召唤故障录波数据命令;(2) The master station of the wave recording networking system sends a call fault wave recording data command to the fault wave recorder;
(3)所述的故障录波器将所述的故障录波数据进行压缩打包并分帧发送至所述的录波联网系统主站;(3) The fault recorder compresses and packs the fault record data and sends them to the master station of the record network system in frames;
(4)所述的录波联网系统主站接收所述的故障录波数据后进行解包分析和在线显示并将所述的故障录波数据进行缓存。(4) The master station of the wave recording networking system receives the fault wave recording data, performs unpacking analysis and online display, and caches the fault wave recording data.
较佳地,所述的故障录波器将所述的故障录波数据进行压缩打包,具体为:Preferably, the fault recorder compresses and packs the fault recording data, specifically:
所述的故障录波器将所述的故障录波数据进行压缩打包以使故障录波数据文件依次包含不含扩展名的文件名、故障时间、同一文件名的不同扩展名文件的个数以及各种类型文件的扩展名、长度和文件内容。The fault recorder compresses and packs the fault record data so that the fault record data file contains successively the number of files with different extensions without extension, fault time, the same file name, and Extension, length and file content of various types of files.
较佳地,所述的分帧发送至所述的录波联网系统主站,具体为:Preferably, the sub-frames are sent to the main station of the wave recording networking system, specifically:
所述的故障录波器按照每帧可以发送的数据字节数将经过压缩打包的故障录波数据文件分成多个传输帧并在每帧中标明该传输帧在整个故障录波数据文件中的起始传输位置。The fault recorder divides the compressed and packaged fault record data file into a plurality of transmission frames according to the number of data bytes that can be sent per frame, and marks the part of the transmission frame in the entire fault record data file in each frame. The starting transfer location.
较佳地,所述的录波联网系统主站接收所述的故障录波数据后进行解包分析和在线显示,包括以下步骤:Preferably, after receiving the fault recording data, the master station of the recording network system performs unpacking analysis and online display, including the following steps:
(41)所述的录波联网系统主站接收所述的故障录波数据后进行解包分析;(41) The master station of the wave recording networking system performs unpacking analysis after receiving the fault wave recording data;
(42)所述的录波联网系统主站将已解包的故障录波数据以图形形式实时在线显示。(42) The master station of the wave recording networking system will display the unpacked fault wave recording data online in real time in the form of graphics.
较佳地,所述的步骤(4)之后,还包括以下步骤:Preferably, after the step (4), the following steps are further included:
(5)所述的录波联网系统主站发送故障录波数据传输状态至所述的故障录波器。(5) The master station of the wave recording networking system sends the fault record data transmission status to the fault recorder.
更佳地,所述的步骤(5)之后,还包括以下步骤:Preferably, after the step (5), the following steps are further included:
(6)所述的录波联网系统主站判断是否还有后续故障录波数据进行传输,如果是,则继续步骤(4),否则继续步骤(7);(6) The master station of the wave recording networking system judges whether there is any follow-up fault wave recording data to be transmitted, if yes, proceed to step (4), otherwise proceed to step (7);
(7)所述的录波联网系统主站对所有已缓存的故障录波数据进行离线显示和数据的完整分析。(7) The master station of the wave recording networking system performs offline display and complete analysis of all the cached fault wave recording data.
采用了该发明中的实现故障录波数据传输时同步在线分析的通讯方法,具有如下有益效果:Adopting the communication method of synchronous online analysis in the transmission of fault recording data in this invention has the following beneficial effects:
1、电网故障时,故障录波器录波数据传输时压缩传输实现了更少地占用有限的数据网络带宽,具有更高的传输效率。1. When the power grid fails, the fault recorder compresses and transmits the wave recording data to achieve less occupation of the limited data network bandwidth and has higher transmission efficiency.
2、故障录波数据分步传输同时进行在线分析与展示(“即时绘”),具有更好的实时性。不用等待大容量的录波数据全部传输完成后再进行分析,更快的确定故障原因,适用于大规模推广应用。2. The step-by-step transmission of the fault recording data is carried out online analysis and display (“instant drawing”) at the same time, which has better real-time performance. There is no need to wait for the large-capacity recording data to be transmitted before analysis, and the fault cause can be determined faster, which is suitable for large-scale promotion and application.
附图说明Description of drawings
图1为本发明的实现故障录波数据传输时同步在线分析的通讯方法的流程图。Fig. 1 is a flow chart of the communication method for realizing synchronous online analysis during fault recording data transmission according to the present invention.
图2为本发明的录波联网系统主站接收数据的流程图。Fig. 2 is a flow chart of receiving data by the master station of the wave recording networking system of the present invention.
具体实施方式Detailed ways
为了能够更清楚地描述本发明的技术内容,下面结合具体实施例来进行进一步的描述。In order to describe the technical content of the present invention more clearly, further description will be given below in conjunction with specific embodiments.
本发明的技术方案为在传输数据时压缩文件打包分帧传送,主站收到数据后同步显示,这样传输多少显示多少,使用户可以快速地看到重要的信息。让用户在数据传输的同时就进行分析即“在线分析”技术。The technical solution of the present invention is to compress the files and send them in frames when the data is transmitted, and the master station will display the data synchronously after receiving the data. In this way, the transmitted data will be displayed as much as possible, so that the user can quickly see the important information. Allowing users to analyze while data transmission is "online analysis" technology.
包含“数据打包压缩传输算法”与“在线分析”技术的录波联网系统增加了在传输时同步进行数据分析与图形绘制的功能,可以快速及时的把用户关心的数据展示出来,以便快速的展示电网故障的概况,及时确定故障解决方案。The wave recording networking system including "data packaging compression transmission algorithm" and "online analysis" technology adds the function of synchronous data analysis and graph drawing during transmission, which can quickly and timely display the data that users care about, so as to quickly display An overview of grid faults, and timely determination of fault solutions.
新系统在原有录波联网系统的基础上,加入了对录波数据在传输时的同步分析显示功能。即传输同时并行进行分析显示,传输完成后所有的数据完整的展示出来。由于显示与数据缓存是并发的,所以在时间上将会快速很多。使用者不用等到对方传输数据完整时就可以进行分析判断电网故障的情况。On the basis of the original wave recording networking system, the new system adds the function of synchronous analysis and display of wave recording data during transmission. That is, the transmission is analyzed and displayed in parallel at the same time, and all the data is completely displayed after the transmission is completed. Since the display and data cache are concurrent, it will be much faster in time. Users don't have to wait until the data transmitted by the other party is complete to analyze and judge the power grid failure.
(1)为了实现在主站侧传输时同步显示功能,我们在传输的开始就要考虑文件的组织形式,即要实现文件的分块传输也要支持接收方的对分块数据的同步显示分析。在本文档中我们的定义文件块的组织形式如下表所示:(1) In order to realize the synchronous display function during transmission on the master station side, we must consider the organizational form of the file at the beginning of the transmission, that is, to realize the block transmission of the file and also support the synchronous display and analysis of the block data by the receiver . The organization of our definition file blocks in this document is shown in the following table:
表1文件数据块格式Table 1 file data block format
在上表中“不含扩展名的文件名”用于描述故障时刻的一组文件名称,通常包含录波数据及报告类型文件等。“故障时间”表示在电网故障时的故障时间。“文件个数”表示在故障时刻故障录波器生成故障时刻的文件数目。In the above table, "file name without extension" is used to describe a group of file names at the time of failure, usually including wave recording data and report type files, etc. The "failure time" indicates the fault time at the time of grid failure. "Number of files" indicates the number of files generated by the fault recorder at the time of failure.
故障录波器响应命令上送数据时把“文件数据”分成多块,每帧送一块,并在每帧中都标明本传输帧数据在整个“文件数据”中的“起始传输位置”(以字节为单位)。When the fault recorder sends data in response to the command, it divides the "file data" into multiple blocks, and sends one piece for each frame, and marks the "starting transmission position" of the transmission frame data in the entire "file data" in each frame ( in bytes).
例:文件名为20010203143254的各类扩展名文件总个数为4个:Example: The total number of files with various extensions named 20010203143254 is 4:
20010203143254.HDR,200字节20010203143254.HDR, 200 bytes
20010203143254.CFG,200字节20010203143254.CFG, 200 bytes
20010203143254.DAT,12,000字节20010203143254.DAT, 12,000 bytes
20010203143254.INF,2,00字节20010203143254.INF, 2,00 bytes
这样,全部“文件数据”包的大小=200+200+12000+200+64(文件名)+7(时标)+2(个数)+4×(10+4)=12729字节。In this way, the size of all "file data" packets = 200+200+12000+200+64 (file name)+7 (time stamp)+2 (number)+4×(10+4)=12729 bytes.
假设每帧可以送200个字节的文件数据,则Assuming that each frame can send 200 bytes of file data, then
第1帧:起始传输位置=0,“文件数据”部分为200字节;The 1st frame: initial transmission position=0, and " file data " part is 200 bytes;
第2帧:起始传输位置=200,“文件数据”部分为200字节;The 2nd frame: initial transmission position=200, and " file data " part is 200 bytes;
……………………
第63帧:起始传输位置=12400,“文件数据”部分为200字节;The 63rd frame: start transmission position=12400, and " file data " part is 200 bytes;
第64帧:起始传输位置=12600,“文件数据”部分=12729-12600=129字节。The 64th frame: start transmission position=12600, "file data" part=12729-12600=129 bytes.
(2)接收数据的处理流程,在传输帧格式定义完成后,在接收端的处理流程如下图2所示。(2) The processing flow of receiving data, after the definition of the transmission frame format is completed, the processing flow at the receiving end is shown in Figure 2 below.
图2为对继电保护故障录波数据传输处理流程,整个流程包括描述如下:Figure 2 shows the processing flow of data transmission for relay protection fault recording, and the whole flow includes the description as follows:
故障录波器启动生成相关故障录波数据后立即通知录波联网系统主站,主站下发召唤录波数据命令。After the fault recorder starts to generate relevant fault record data, it immediately notifies the master station of the record network system, and the master station issues a command to call for record data.
故障录波器按表1定义格式要求压缩打包。遵循传输规约要求分帧传送故障录波数据,主站收到后解包分析和在线显示,同时把相关数据缓存。并且发布文件传输的情况,供前台了解数据传输状态,循环处理直到文件传输完成。对于缓存的故障录波数据也支持离线显示。并进行完整性分析。The fault recorder is compressed and packaged according to the format requirements defined in Table 1. According to the requirements of the transmission protocol, the fault recording data is transmitted in frames. After receiving it, the master station unpacks it for analysis and displays it online, and caches the relevant data at the same time. And publish the status of the file transfer, for the front desk to understand the status of the data transfer, loop processing until the file transfer is completed. Offline display is also supported for cached fault recording data. And perform integrity analysis.
如图1所示为本发明的实现故障录波数据传输时同步在线分析的通讯方法的流程图。本发明的方法包括以下步骤:As shown in FIG. 1 , it is a flow chart of the communication method of the present invention for synchronous on-line analysis of fault recording data transmission. Method of the present invention comprises the following steps:
(1)故障录波器启动生成故障录波数据后通知录波联网系统主站;(1) After the fault recorder starts to generate fault record data, it notifies the master station of the record network system;
(2)录波联网系统主站向故障录波器发送召唤故障录波数据命令;(2) The master station of the wave recording network system sends a command to call the fault record data to the fault recorder;
(3)故障录波器将故障录波数据进行压缩打包并分帧发送至录波联网系统主站;(3) The fault recorder compresses and packs the fault recording data and sends them to the main station of the recording networking system in frames;
故障录波器将故障录波数据进行压缩打包以使故障录波数据文件依次包含不含扩展名的文件名、故障时间、同一文件名的不同扩展名文件的个数以及各种类型文件的扩展名、长度和文件内容。The fault recorder compresses and packs the fault record data so that the fault record data file contains the file name without extension, the fault time, the number of files with different extensions of the same file name, and the extensions of various types of files. name, length and file content.
故障录波器按照每帧可以发送的数据字节数将经过压缩打包的故障录波数据文件分成多个传输帧并在每帧中标明该传输帧在整个故障录波数据文件中的起始传输位置。The fault recorder divides the compressed and packaged fault recording data file into multiple transmission frames according to the number of data bytes that can be sent in each frame, and marks the initial transmission of the transmission frame in the entire fault recording data file in each frame Location.
(4)录波联网系统主站接收故障录波数据后进行解包分析和在线显示并将故障录波数据进行缓存。(4) After receiving the fault recording data, the master station of the wave recording networking system performs unpacking analysis and online display, and caches the fault recording data.
(41)录波联网系统主站接收故障录波数据后进行解包分析;(41) The master station of the wave recording networking system performs unpacking analysis after receiving the fault recording data;
(42)录波联网系统主站将已解包的故障录波数据以图形形式实时在线显示。(42) The master station of the wave recording network system displays the unpacked fault record data online in real time in the form of graphics.
(5)录波联网系统主站发送故障录波数据传输状态至故障录波器。(5) The master station of the wave recording network system sends the fault record data transmission status to the fault recorder.
(6)录波联网系统主站判断是否还有后续故障录波数据进行传输,如果是,则继续步骤(4),否则继续步骤(7);(6) The master station of the wave recording networking system judges whether there is any follow-up fault recording data to be transmitted, if yes, proceed to step (4), otherwise proceed to step (7);
(7)录波联网系统主站对所有已缓存的故障录波数据进行离线显示和数据的完整分析。(7) The master station of the wave recording network system performs offline display and complete analysis of all the cached fault record data.
采用了该发明中的实现故障录波数据传输时同步在线分析的通讯方法,具有如下有益效果:Adopting the communication method of synchronous online analysis in the transmission of fault recording data in this invention has the following beneficial effects:
1、电网故障时,故障录波器录波数据传输时压缩传输实现了更少地占用有限的数据网络带宽,具有更高的传输效率。1. When the power grid fails, the fault recorder compresses and transmits the wave recording data to achieve less occupation of the limited data network bandwidth and has higher transmission efficiency.
2、故障录波数据分步传输同时进行在线分析与展示(“即时绘”),具有更好的实时性。不用等待大容量的录波数据全部传输完成后再进行分析,更快的确定故障原因,适用于大规模推广应用。2. The step-by-step transmission of the fault recording data is carried out online analysis and display (“instant drawing”) at the same time, which has better real-time performance. There is no need to wait for the large-capacity recording data to be transmitted before analysis, and the fault cause can be determined faster, which is suitable for large-scale promotion and application.
在此说明书中,本发明已参照其特定的实施例作了描述。但是,很显然仍可以作出各种修改和变换而不背离本发明的精神和范围。因此,说明书和附图应被认为是说明性的而非限制性的。In this specification, the invention has been described with reference to specific embodiments thereof. However, it is obvious that various modifications and changes can be made without departing from the spirit and scope of the invention. Accordingly, the specification and drawings are to be regarded as illustrative rather than restrictive.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310664695.9ACN103633742B (en) | 2013-12-10 | 2013-12-10 | Realize the means of communication of synchronous on-line analysis during fault recorder data transmission |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310664695.9ACN103633742B (en) | 2013-12-10 | 2013-12-10 | Realize the means of communication of synchronous on-line analysis during fault recorder data transmission |
| Publication Number | Publication Date |
|---|---|
| CN103633742A CN103633742A (en) | 2014-03-12 |
| CN103633742Btrue CN103633742B (en) | 2015-10-21 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310664695.9AActiveCN103633742B (en) | 2013-12-10 | 2013-12-10 | Realize the means of communication of synchronous on-line analysis during fault recorder data transmission |
| Country | Link |
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| CN (1) | CN103633742B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065720A (en)* | 2017-04-20 | 2017-08-18 | 哈尔滨理工大学 | Intelligent electric machine failure wave-recording early warning system |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917644A (en)* | 2015-04-14 | 2015-09-16 | 安徽立卓智能电网科技有限公司 | Method for actively and additionally recording data by sub stations to master station based on compression algorithm |
| CN106199427B (en)* | 2016-07-06 | 2019-08-23 | 中国东方电气集团有限公司 | A kind of real-time excitation recording system |
| CN106549735A (en)* | 2016-12-08 | 2017-03-29 | 国网北京市电力公司 | The transmission method of recorder data, apparatus and system |
| CN109660525A (en)* | 2018-12-05 | 2019-04-19 | 贵州电网有限责任公司 | A kind of dynamic specification adaptation acquisition processing system for electricity consumption acquisition system |
| CN115291967B (en)* | 2022-08-01 | 2023-05-23 | 中国人民解放军32039部队 | Aerospace data analysis method and device and electronic equipment |
| CN119676179A (en)* | 2025-02-21 | 2025-03-21 | 新乡市莱德机器人技术有限公司 | Compression method for reducing storage space and optimizing transmission in power intelligent terminals |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082576A (en)* | 2011-01-28 | 2011-06-01 | 北京博电新力电力系统仪器有限公司 | Data processing device for electric energy quality signal and data compression and decompression method thereof |
| CN102403788A (en)* | 2011-04-28 | 2012-04-04 | 广东省电力调度中心 | Test system applicable to southern power grid communication guaranteeing system |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10275840B2 (en)* | 2011-10-04 | 2019-04-30 | Electro Industries/Gauge Tech | Systems and methods for collecting, analyzing, billing, and reporting data from intelligent electronic devices |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082576A (en)* | 2011-01-28 | 2011-06-01 | 北京博电新力电力系统仪器有限公司 | Data processing device for electric energy quality signal and data compression and decompression method thereof |
| CN102403788A (en)* | 2011-04-28 | 2012-04-04 | 广东省电力调度中心 | Test system applicable to southern power grid communication guaranteeing system |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065720A (en)* | 2017-04-20 | 2017-08-18 | 哈尔滨理工大学 | Intelligent electric machine failure wave-recording early warning system |
| Publication number | Publication date |
|---|---|
| CN103633742A (en) | 2014-03-12 |
| Publication | Publication Date | Title |
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| CP03 | Change of name, title or address | Address after:100033 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Co-patentee after:Guangyuan Power Supply Company of State Grid Sichuan Electric Power Corporation Patentee after:State Grid Corporation of China Co-patentee after:Shanghai Xuji Electric Co., Ltd. Address before:100031 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Co-patentee before:Guangyuan Power Supply Company of State Grid Sichuan Electric Power Corporation Patentee before:State Grid Corporation of China Co-patentee before:Shanghai Xuji Electric Co., Ltd. | |
| CP03 | Change of name, title or address |