CN112104088A - Intelligent substation protection and secondary circuit handheld type patrol instrument and working method thereof - Google Patents
Intelligent substation protection and secondary circuit handheld type patrol instrument and working method thereof Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
- H02H1/0084—Details of emergency protective circuit arrangements concerning transmission of signals by means of pilot wires or a telephone network; watching of these wires
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/006—Calibration or setting of parameters
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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Abstract
本发明提出了一种智能变电站保护及二次回路手持式巡检仪及其工作方法，包括操作面板和手柄，手柄与操作面板固定连接，所述操作面板上设置有触摸显示屏，操作面板上部设置有网络接口组件，操作面板一侧设置有数据传输接口组件，操作面板内设置有嵌入式CPU系统，嵌入式CPU系统分别与触摸显示屏、网络接口组件、数据传输接口组件、存储组件以及FPGA芯片相连接。本发明整体低功耗、便易携带，能够对多种格式定值单的导入智能识别，并且能够对定值及压板一致性核对及核对报告自动生成。
The invention provides an intelligent substation protection and secondary circuit hand-held inspection instrument and its working method, including an operation panel and a handle, the handle is fixedly connected with the operation panel, the operation panel is provided with a touch display screen, and the upper part of the operation panel is provided with a touch screen. A network interface component is arranged, a data transmission interface component is arranged on one side of the operation panel, an embedded CPU system is arranged in the operation panel, and the embedded CPU system is respectively connected with the touch display screen, the network interface component, the data transmission interface component, the storage component and the FPGA. chips are connected. The invention has low power consumption as a whole, is easy to carry, can intelligently identify the import of fixed value sheets in various formats, and can automatically generate a verification report on the consistency of the fixed value and the pressure plate.
Description
技术领域technical field
本发明涉及智能变电站继电保护等二次设备巡检的技术领域，尤其涉及一种智能变电站保护及二次回路手持式巡检仪及其工作方法。The invention relates to the technical field of inspection of secondary equipment such as relay protection of intelligent substations, in particular to a hand-held inspection instrument for protection of intelligent substations and secondary circuits and a working method thereof.
背景技术Background technique
目前定值和压板的核查工作主要依靠人工进行记录和分析对比，长期以来，保护装置定值压板校核工作模式是：保护人员2人一组，一人读取定值压板状态，另一人在装置上操作，输入完毕后，保存，然后2人互换角色，进行第一次核对，无误后，运行人员打印装置内部定值单，2人一组，将定值清单和打印的定值单逐项进行核对，完成第二次核对。At present, the verification work of setting value and pressure plate mainly relies on manual recording, analysis and comparison. For a long time, the working mode of checking the fixed value pressure plate of the protection device is as follows: a group of two protection personnel, one person reads the state of the fixed value pressure plate, and the other person is on the device. After the input is completed, save it, and then the two people change roles to check for the first time. After there is no error, the operator will print the internal value list of the device, a group of two people, and put the value list and the printed value list one by one. Items are checked, and the second check is completed.
这种工作方法需较多的人力和耗费员工大量的时间和精力。例如一条220kV线路，至少4人一组，约40分钟才能完成；一台220kV三圈变，约90分钟；一条500kV线路，约100分钟才能完成；一台500kV三圈变，约200分钟，且电压等级越高，耗时越长，因为配置越复杂，整定项目越多。This working method requires more manpower and consumes a lot of time and energy of employees. For example, a 220kV line, at least 4 people in a group, can be completed in about 40 minutes; a 220kV three-turn transformation can be completed in about 90 minutes; a 500kV line can be completed in about 100 minutes; a 500kV three-turn transformation can be completed in about 200 minutes, and The higher the voltage level, the longer the time, because the more complex the configuration, the more setting items.
对于在定值巡检中发现的一些异常信号更需要运行人员具备一定的经验和专业能力才能够及时发现和排查问题。因此依靠人工开展巡检工作存在效率低、工作量大、及时性差和准确性低等问题，也可能会出现漏记、漏判等现象，给设备运行留下隐患。而随着电网规模的扩大，继电保护在运行中需要巡检的数据量与日俱增，运行人员的工作量不断增加。For some abnormal signals found in the fixed value inspection, it is necessary for the operator to have certain experience and professional ability to detect and troubleshoot the problem in time. Therefore, relying on manual inspection work has problems such as low efficiency, large workload, poor timeliness and low accuracy, and there may also be missed records and missed judgments, leaving hidden dangers for equipment operation. With the expansion of the power grid, the amount of data that needs to be inspected during the operation of relay protection is increasing day by day, and the workload of operators is increasing.
发明内容SUMMARY OF THE INVENTION
针对目前依靠人工开展巡检工作存在效率低、工作量大、及时性差和准确性低等问题，也可能会出现漏记、漏判等现象，给设备运行留下隐患的技术问题，本发明提出一种智能变电站保护及二次回路手持式巡检仪及其工作方法。In view of the problems of low efficiency, large workload, poor timeliness and low accuracy in the current manual inspection work, and the phenomenon of missed records and missed judgments may also occur, leaving hidden dangers for equipment operation, the present invention proposes An intelligent substation protection and secondary circuit hand-held inspection instrument and its working method.
为了解决上述问题，本发明的技术方案是这样实现的：In order to solve the above-mentioned problems, the technical scheme of the present invention is realized as follows:
一种智能变电站保护及二次回路手持式巡检仪，包括操作面板和手柄，手柄与操作面板固定连接，所述操作面板上设置有触摸显示屏，操作面板上部设置有网络接口组件，操作面板一侧设置有数据传输接口组件，操作面板内设置有嵌入式CPU系统，嵌入式CPU系统分别与触摸显示屏、网络接口组件、数据传输接口组件、存储组件以及FPGA芯片相连接。An intelligent substation protection and secondary circuit handheld inspection instrument, comprising an operation panel and a handle, the handle is fixedly connected with the operation panel, the operation panel is provided with a touch display screen, the upper part of the operation panel is provided with a network interface component, and the operation panel A data transmission interface component is arranged on one side, an embedded CPU system is arranged in the operation panel, and the embedded CPU system is respectively connected with the touch display screen, the network interface component, the data transmission interface component, the storage component and the FPGA chip.
优选地，所述网络接口组件包括光以太网口，嵌入式CPU系统通过MMS通信服务模块以及光以太网接口与变电站站控层交换机相连接，变电站站控层网络交换机分别与各保护装置相连接。Preferably, the network interface component includes an optical Ethernet port, the embedded CPU system is connected to the substation control layer switch through the MMS communication service module and the optical Ethernet interface, and the substation station control layer network switch is respectively connected to each protection device. .
优选地，所述数据传输接口组件包括第一USB接口、第二USB接口以及开关量扩展接口，第一USB接口通过DOM接口与嵌入式CPU系统相连接，第一USB接口用于导入SCD文件、下发的EXCEL定值单、PDF定值单、XML定值单以及CSV/TXT定值单，第二USB接口用于导出定值模板；所述存储组件包括TF卡、ND-Flash存储盘以及DDR存储盘。Preferably, the data transmission interface component includes a first USB interface, a second USB interface and a switch expansion interface, the first USB interface is connected to the embedded CPU system through a DOM interface, and the first USB interface is used for importing SCD files, The issued EXCEL fixed value sheet, PDF fixed value sheet, XML fixed value sheet and CSV/TXT fixed value sheet, the second USB interface is used to export the fixed value template; the storage components include TF card, ND-Flash storage disk and DDR memory disk.
优选地，操作面板上部设置有GPS天线，操作面板一侧设置有开关机按键以及报警器，GPS天线和报警器均与嵌入式CPU系统相连接，电源通过开关机按键与嵌入式CPU系统相连接。Preferably, the upper part of the operation panel is provided with a GPS antenna, one side of the operation panel is provided with a switch button and an alarm, both the GPS antenna and the alarm are connected to the embedded CPU system, and the power supply is connected to the embedded CPU system through the switch button .
智能变电站保护及二次回路手持式巡检仪的工作方法，包括以下步骤：The working method of smart substation protection and secondary circuit handheld inspection instrument includes the following steps:
S1、通过第一USB接口导入SCD文件以及下发的EXCEL定值单、PDF定值单、XML定值单或CSV/TXT定值单，利用DOM接口解析SCD文件后传输至嵌入式CPU系统；S1. Import the SCD file and the issued EXCEL setting sheet, PDF setting sheet, XML setting sheet or CSV/TXT setting sheet through the first USB interface, and use the DOM interface to parse the SCD file and transmit it to the embedded CPU system;
S2、通过MMS通信服务模块自动读取各保护装置内部所有定值项以及定值范围；S2. Automatically read all fixed value items and fixed value ranges in each protection device through the MMS communication service module;
S3、根据步骤S2读取定值项后自动生产定值模板，通过第二USB接口导出定值模板或连接到主站管控软件后自动上传定值模板；S3, automatically produce a fixed value template after reading the fixed value item according to step S2, export the fixed value template through the second USB interface or automatically upload the fixed value template after being connected to the master station control software;
S4、根据步骤S1和步骤S2读取定值单后与各保护装置读取的定值项进行自动比对定值，不一致时，嵌入式CPU系统控制报警器发出报警。S4. According to step S1 and step S2, after reading the fixed value list, automatically compare the fixed value with the fixed value items read by each protection device. When inconsistent, the embedded CPU system controls the alarm device to issue an alarm.
优选地，所述步骤S4中定值单与各保护装置读取的定值项进行自动比对定值的工作方法，包括以下步骤：Preferably, in the step S4, the working method of automatically comparing the fixed value between the fixed value list and the fixed value items read by each protection device includes the following steps:
A1、首先通过对标准化定值单进行统计归类，运用VTD解析技术或OCR模式识别技术，识别标准化定值单格式，提取出定值信息，形成以装置型号为分类的固定格式的数据库文件，并通过与对应IED装置的定值进行映射关联，达到一次映射永久适用效果，为自动一键式比较提供基础；A1. First, through the statistical classification of the standardized fixed value list, use the VTD analysis technology or OCR pattern recognition technology to identify the format of the standardized fixed value list, extract the fixed value information, and form a fixed format database file classified by device model. And through the mapping association with the fixed value of the corresponding IED device, the permanent application effect of the one-time mapping is achieved, which provides the basis for automatic one-click comparison;
A2、通过在线读取定值，首次运行人工确认定值无误后，将此次定值设定为标准定值，并固化到数据库中，后续在线读取的定值都与之比对；A2. By reading the fixed value online, after the first operation to manually confirm that the fixed value is correct, set this fixed value as the standard fixed value, and solidify it into the database, and the subsequent online reading of the fixed value will be compared with it;
A3、通过在线读取的定值数据库文件和定值单数据库文件进行自动比较，不一致时，不一致时，嵌入式CPU系统控制报警器发出报警。A3. Automatically compare the fixed value database file and the fixed value single database file read online. When it is inconsistent, the embedded CPU system controls the alarm to send an alarm.
与现有技术相比，本发明的有益效果：Compared with the prior art, the beneficial effects of the present invention:
本发明通过外部导入SCD文件和定值单，通过IEC61850通信规约的MMS通信服务模块自动读取各保护装置内部的定值项与导入的定值单进行自动比对定值，不一致时发出报警，并且读取定值项后能自动生成模板，并可通过USB口导出，或连接到主站管控软件后自动上传，巡检效率高，整体功耗低，便于携带，对多种格式定值单的导入进行智能识别，解决了目前依靠人工开展巡检工作存在效率低、工作量大、及时性差和准确性低等问题，也可能会出现漏记、漏判等现象，给设备运行留下隐患的技术问题。The invention imports the SCD file and the fixed value list from the outside, and automatically reads the internal fixed value items of each protection device and the imported fixed value list through the MMS communication service module of the IEC61850 communication protocol. And the template can be automatically generated after reading the fixed value item, which can be exported through the USB port, or automatically uploaded after being connected to the main station control software. The inspection efficiency is high, the overall power consumption is low, and it is easy to carry. The introduction of the intelligent identification method solves the problems of low efficiency, large workload, poor timeliness and low accuracy in the current manual inspection work. There may also be missed records, missed judgments, etc., leaving hidden dangers for equipment operation. technical issues.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.
图1为本发明的主视图。FIG. 1 is a front view of the present invention.
图2为图1的俯视图。FIG. 2 is a top view of FIG. 1 .
图3为图1的侧视图。FIG. 3 is a side view of FIG. 1 .
图4为本发明的原理框图。FIG. 4 is a principle block diagram of the present invention.
图中，1为操作面板，2为触摸显示屏，3为光以太网口，4为GPS天线，5为开关量扩展接口，6为报警器，7为第一USB接口，8为第二USB接口，9为开关机按键。In the figure, 1 is the operation panel, 2 is the touch screen, 3 is the optical Ethernet port, 4 is the GPS antenna, 5 is the switch expansion interface, 6 is the alarm, 7 is the first USB interface, and 8 is the second USB interface, 9 is the switch button.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有付出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
实施例1：如图1所示，一种智能变电站保护及二次回路手持式巡检仪，包括操作面板1和手柄，手柄与操作面板1固定连接，巡检仪嵌入式LINUX操作系统，以便实现基于多线程技术软件的调试、升级和可靠稳定运行，嵌入式软件拟采用LINUX操作系统，便于为应用软件提供一个稳定可靠的多任务和良好的扩展性支持。嵌入式软件采用模块化、分层设计思路，将各种应用根据数据流关系归纳设计，尽可能地采用独立的进程完成，各进程之间通过“软总线”技术交换数据/信息，以提高装置软件的稳定性、可靠性和可扩展性。数据库拟采用嵌入式MySQL或者SqlLite，将各种数据管理标准化。Embodiment 1: As shown in Figure 1, a hand-held inspection instrument for intelligent substation protection and secondary circuit includes an
如图4所示，嵌入所述操作面板1上设置有触摸显示屏2，操作面板1上部设置有网络接口组件，操作面板1一侧设置有数据传输接口组件，操作面板1内设置有嵌入式CPU系统，嵌入式CPU系统分别与触摸显示屏2、网络接口组件、数据传输接口组件、存储组件以及FPGA芯片相连接。As shown in FIG. 4 , a
所述网络接口组件包括光以太网口3，嵌入式CPU系统通过MMS通信服务模块以及光以太网接口1与变电站站控层交换机相连接，通过IEC61850-MMS协议在线获取智能变电站IED设备的二次数据，变电站站控层网络交换机分别与各保护装置相连接。The network interface component includes an
如图2和图3所示，所述数据传输接口组件包括第一USB接口7、第二USB接口8以及开关量扩展接口5，第一USB接口7通过DOM接口与嵌入式CPU系统相连接，DOM的全称是Document Object Model，即文档对象模型，W3C 组织推荐处理 XML 的一种方式。在应用程序中，基于 DOM 的 XML 分析器将一个 XML 文档转换成一个对象模型的集合通常称 DOM树，应用程序正是通过对这个对象模型的操作，来实现对 XML 文档数据的操作。通过 DOM接口，应用程序可以在任何时候访问 XML 文档中的任何一部分数据，因此这种利用 DOM接口的机制也被称作随机访问机制；所述存储组件包括TF卡、ND-Flash存储盘以及DDR存储盘。As shown in FIG. 2 and FIG. 3 , the data transmission interface component includes a
操作面板1上部设置有GPS天线4，操作面板1一侧设置有开关机按键9以及报警器6，GPS天线4和报警器6均与嵌入式CPU系统相连接，电源通过开关机按键9与嵌入式CPU系统相连接。The upper part of the
实施例2：智能变电站保护及二次回路手持式巡检仪的工作方法，包括以下步骤：Embodiment 2: The working method of the intelligent substation protection and the secondary circuit hand-held inspection instrument, including the following steps:
S1、通过第一USB接口7导入SCD文件以及下发的EXCEL定值单、PDF定值单、XML定值单或CSV/TXT定值单，利用DOM接口解析SCD文件后传输至嵌入式CPU系统；S1. Import the SCD file and the issued EXCEL setting sheet, PDF setting sheet, XML setting sheet or CSV/TXT setting sheet through the
S2、通过MMS通信服务模块自动读取各保护装置内部所有定值项以及定值范围；S2. Automatically read all fixed value items and fixed value ranges in each protection device through the MMS communication service module;
S3、根据步骤S2读取定值项后自动生产定值模板，通过第二USB接口8导出定值模板或连接到主站管控软件后自动上传定值模板；S3, automatically produce a fixed value template after reading the fixed value item according to step S2, export the fixed value template through the
S4、根据步骤S1和步骤S2读取定值单后与各保护装置读取的定值项进行自动比对定值，不一致时，嵌入式CPU系统控制报警器发出报警；定值单与各保护装置读取的定值项进行自动比对定值的工作方法，包括以下步骤：S4. After reading the fixed value list according to step S1 and step S2, automatically compare the fixed value with the fixed value items read by each protection device. When it is inconsistent, the embedded CPU system controls the alarm to issue an alarm; The working method of automatically comparing the fixed value of the fixed value item read by the device includes the following steps:
A1、首先通过对标准化定值单进行统计归类，运用VTD解析技术或OCR模式识别技术，识别标准化定值单格式，提取出定值信息，形成以装置型号为分类的固定格式的数据库文件，并通过与对应IED装置的定值进行映射关联，达到一次映射永久适用效果，为自动一键式比较提供基础；A1. First, through the statistical classification of the standardized fixed value list, use the VTD analysis technology or OCR pattern recognition technology to identify the format of the standardized fixed value list, extract the fixed value information, and form a fixed format database file classified by device model. And through the mapping association with the fixed value of the corresponding IED device, the permanent application effect of the one-time mapping is achieved, which provides the basis for automatic one-click comparison;
A2、通过在线读取定值，首次运行人工确认定值无误后，将此次定值设定为标准定值，并固化到数据库中，后续在线读取的定值都与之比对；A2. By reading the fixed value online, after the first operation to manually confirm that the fixed value is correct, set this fixed value as the standard fixed value, and solidify it into the database, and the subsequent online reading of the fixed value will be compared with it;
A3、通过在线读取的定值数据库文件和定值单数据库文件进行自动比较，不一致时，不一致时，嵌入式CPU系统控制报警器发出报警。A3. Automatically compare the fixed value database file and the fixed value single database file read online. When it is inconsistent, the embedded CPU system controls the alarm to send an alarm.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.
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