技术领域technical field
本发明涉及电网故障分析技术领域，尤其涉及电网故障综合分析平台及工作方法。The invention relates to the technical field of grid fault analysis, in particular to a grid fault comprehensive analysis platform and a working method.
背景技术Background technique
电网故障信息分析一直都是调度单位非常重要的工作，从一开始早期的到变电站现场打印保护及录波器的动作报告到后期的故障信息远传推送报告，这些点都是一些相对独立的系统和点，彼此之间的关联很少，分析起来较为吃力。近几年开始有调度单位开始尝试多系统的融合，把故障后的信息进行融合，但是融合的效果目前看来效果都不是很好，原因有两个：Power grid fault information analysis has always been a very important task for dispatching units. From the early stage of printing protection and oscilloscope action reports on the substation site to the later push reports of fault information remote transmission, these points are relatively independent systems The points and points are rarely related to each other, so it is more difficult to analyze. In recent years, some dispatching units have begun to try the fusion of multiple systems to fuse the information after the failure. However, the effect of the fusion is not very good at present. There are two reasons:
一是各设备、各系统通信规约、数据格式不一致，在融合过程中涉及到的开发周期较长，需要多厂家配合；First, the communication protocols and data formats of each device and system are inconsistent, and the development cycle involved in the integration process is long, requiring the cooperation of multiple manufacturers;
二是故障报告的生成缺乏预处理问题，一旦发生故障，几乎辖区内的所有保护、录波器、行波都会动作，加上时标的错乱，有用的故障信息往往淹没在海量的数据中，不能提高有效的支撑信息；The second is that the generation of fault reports lacks preprocessing. Once a fault occurs, almost all protection, wave recorders, and traveling waves in the jurisdiction will operate. In addition, the time scale is disordered, and useful fault information is often submerged in massive data. Improve effective supporting information;
三是故障报告的融合仅仅是做了信息点的罗列和排序，并没有真正进入分析阶段，涉及多厂家数据格式的格式化、归一化。The third is that the fusion of fault reports only lists and sorts information points, and does not really enter the analysis stage, which involves the formatting and normalization of multi-vendor data formats.
发明内容Contents of the invention
本发明的目的就是为了解决上述问题，提供电网故障综合分析平台及工作方法，把所有故障相关波形数据放在同一个时间轴上进行展示，能够反映电网故障期间各个电气元件的变化情况从而判断故障区域和性质。The purpose of the present invention is to solve the above problems, provide a comprehensive grid fault analysis platform and working method, and display all fault-related waveform data on the same time axis, which can reflect the change of each electrical component during the fault period of the power grid to judge the fault area and nature.
为了实现上述目的，本发明采用如下技术方案：In order to achieve the above object, the present invention adopts the following technical solutions:
电网故障综合分析平台的工作方法，包括：The working method of the power grid fault comprehensive analysis platform includes:
步骤一、故障分析模块从保信系统获取保护装置记录的针对单个间隔的故障信息；Step 1, the failure analysis module obtains the failure information for a single interval recorded by the protection device from the guarantee system;
步骤二、故障分析模块从故障录波装置获取故障期间的电网电气量的波形数据；Step 2, the fault analysis module obtains the waveform data of the electrical quantity of the power grid during the fault period from the fault recording device;
步骤三、将所有故障相关波形数据放在同一个时间轴上进行展示；Step 3. Display all fault-related waveform data on the same time axis;
步骤四、根据电网故障期间各个电气元件的变化情况判断故障区域和性质。Step 4: Judging the fault area and nature according to the change of each electrical component during the power grid fault.
故障分析模块从保信系统获取一次和二次设备的模型及关联关系，在电网发生故障后获得保护装置的动作事件、开关变位及录波数据的故障信息，和故障录波装置的录波信息进行自动匹配，把一次电网故障的所有相关信息整合在一起。The fault analysis module obtains the models and correlations of primary and secondary equipment from the guarantee system, and obtains the action events of the protection device, the switch displacement and the fault information of the wave recording data after the power grid fails, as well as the wave recording information of the fault wave recording device Perform automatic matching and integrate all relevant information of a power grid fault.
将步骤四分析得到的故障区域和性质故障数据封装接入现有的电网科技创新平台进行展示，并将故障数据发布到海量数据平台，实现数据共享。The fault area and nature of the fault data analyzed in step 4 are encapsulated and connected to the existing power grid technology innovation platform for display, and the fault data is released to the massive data platform to realize data sharing.
将步骤四故障区域和性质故障数据向移动设备推送故障报告，实现在平板或手机上分析电网故障。Push the fault report to the mobile device with the fault area and nature fault data in step 4, so as to analyze the power grid fault on the tablet or mobile phone.
还包括，通过对故障录波装置记录中的直流通道数据进行分析，对站内母线直流运行电压进行监视和分析，实现母线直流电压告警功能。It also includes monitoring and analyzing the DC operating voltage of the bus in the station by analyzing the DC channel data recorded by the fault recording device, so as to realize the alarm function of the DC voltage of the bus.
所述步骤四的判断方法包括：The judging method of the step 4 includes:
通过调度主站远程调整故障录波装置接入间隔通道名称、CT极性及变比系数，保证电网正常运行时所有输变电设备的差流计算值均接近于零；Remotely adjust the access interval channel name, CT polarity and transformation ratio coefficient of the fault recording device by dispatching the master station to ensure that the differential current calculation values of all power transmission and transformation equipment are close to zero when the power grid is in normal operation;
电网发生故障时，根据故障录波装置上送的故障数据，分别以电网独立设备为计算单元，进行电网一次电流的差流计算；When the power grid fails, according to the fault data sent by the fault recording device, the independent equipment of the power grid is used as the calculation unit to calculate the differential current of the primary current of the power grid;
将得到的差流值与差流整定值进行比较，实现准确故障位置定位及保护动作行为评价。The obtained differential current value is compared with the differential current setting value to realize accurate fault location positioning and evaluation of protection action behavior.
采用所述电网故障综合分析平台的工作方法的电网故障综合分析平台，包括故障分析模块，所述故障分析模块与保信系统和至少一个变电站内的至少一个故障录波装置通信，所述保信系统与III区数据中心进行数据交互，III区数据中心通过SOA服务器与移动端进行通信；所述变电站内的故障录波装置通过调度数据网单独组网。The power grid fault comprehensive analysis platform adopting the working method of the power grid fault comprehensive analysis platform includes a fault analysis module, and the fault analysis module communicates with at least one fault recorder in at least one substation and a credit guarantee system, and the credit guarantee system communicates with at least one fault recording device in at least one substation The data center in Zone III performs data interaction, and the data center in Zone III communicates with the mobile terminal through the SOA server; the fault recording device in the substation is separately networked through the dispatching data network.
所述故障分析模块包括网络交换机A和网络交换机B，至少一个工作站、第一应用服务器、数据服务器及通信服务器与所述网络交换机A和网络交换机B通信；所述第一应用服务器与保信系统进行数据的交互。The fault analysis module includes a network switch A and a network switch B, at least one workstation, a first application server, a data server and a communication server communicate with the network switch A and the network switch B; the first application server communicates with the credit guarantee system data interaction.
所述保信系统包括第二应用服务器，所述第二应用服务器将保护动作事件和录波发送给所述第一应用服务器；所述第一应用服务器将故障综合分析数据包通过电力网络正向隔离装置发送给WEB服务器，所述WEB服务器将数据存储在所述III区数据中心。The credit assurance system includes a second application server, and the second application server sends protection action events and recorded waves to the first application server; the first application server forwardly isolates the fault comprehensive analysis data packet through the power network The device sends to the WEB server, and the WEB server stores the data in the Zone III data center.
所述通信服务器还与行波测距装置及小电流接地选线装置通信。The communication server also communicates with the traveling wave distance measuring device and the small current grounding line selection device.
本发明的有益效果：Beneficial effects of the present invention:
本发明对于提高故障处理的工作效率，尽快恢复系统供电，减少因停电造成的综合经济损失具有重要意义，能够提高整个电力系统的安全稳定经济运行水平。The present invention is of great significance for improving the work efficiency of fault handling, restoring system power supply as soon as possible, and reducing comprehensive economic loss caused by power failure, and can improve the safe, stable and economical operation level of the entire power system.
电网故障综合分析系统是分布式的智能信息采集、收集、有机整合、故障辨识、提供决策支持的系统。实现变电站控制和监视信息严格按照分层分级管理，优化数据流转方向，减少对数据网通道的占用，提高了系统的可靠运行。The power grid fault comprehensive analysis system is a distributed intelligent information collection, collection, organic integration, fault identification, and decision support system. Realize substation control and monitoring information strictly in accordance with hierarchical management, optimize the direction of data flow, reduce the occupation of data network channels, and improve the reliable operation of the system.
通过平台系统展开各种类型的仿真培训，不仅可以避免传统实地培训对正常生产工作所造成的影响，更加重要的是能反复多次的进行仿真培训训练，对过程进行推敲，减少事故的发生，降低经济损失。Carrying out various types of simulation training through the platform system can not only avoid the impact of traditional on-site training on normal production work, but more importantly, it can repeatedly conduct simulation training and training, deliberate on the process, and reduce the occurrence of accidents. Reduce economic losses.
附图说明Description of drawings
图1为本发明的系统结构图。Fig. 1 is a system structure diagram of the present invention.
具体实施方式Detailed ways
下面结合附图与实施例对本发明作进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
电网故障综合分析平台，如图1所示，包括故障分析模块，所述故障分析模块与保信系统和至少一个变电站内的至少一个故障录波装置通信，所述保信系统与III区数据中心进行数据交互，III区数据中心通过SOA服务器与移动端进行通信；所述变电站内的故障录波装置通过调度数据网单独组网。实现不同厂家、型号故障录波装置组网，解决规约不统一、数据格式不标准的问题，设计实现一个通用的录波数据采集平台，为接入各种类型设备提供统一接口。The power grid fault comprehensive analysis platform, as shown in Figure 1, includes a fault analysis module, and the fault analysis module communicates with at least one fault recording device in the letter guarantee system and at least one substation, and the letter guarantee system performs data processing with the data center in Zone III Interaction, the data center in Zone III communicates with the mobile terminal through the SOA server; the fault recording device in the substation is separately networked through the dispatching data network. Realize the networking of different manufacturers and models of fault recording devices, solve the problems of inconsistent protocols and non-standard data formats, design and implement a general recording data acquisition platform, and provide a unified interface for accessing various types of equipment.
本发明为调度等部门提高故障分析和处理能力提供技术支撑。在电网发生复杂故障时，往往有多套保护装置跳闸，本系统基于故障录波数据，结合现有的保信等技术支持系统对故障区域、故障性质做出及时准确的判断，为快速恢复供电提供依据。The invention provides technical support for departments such as dispatching to improve fault analysis and processing capabilities. When a complex fault occurs in the power grid, multiple sets of protection devices often trip. Based on the fault recording data, this system makes timely and accurate judgments on the fault area and fault nature based on the fault recording data, combined with the existing Baoxin and other technical support systems. in accordance with.
所述故障分析模块包括网络交换机A和网络交换机B，至少一个工作站、第一应用服务器、数据服务器及通信服务器与所述网络交换机A和网络交换机B通信；所述第一应用服务器与保信系统进行数据的交互。The fault analysis module includes a network switch A and a network switch B, at least one workstation, a first application server, a data server and a communication server communicate with the network switch A and the network switch B; the first application server communicates with the credit guarantee system data interaction.
所述保信系统包括第二应用服务器，所述第二应用服务器将保护动作事件和录波发送给所述第一应用服务器；所述第一应用服务器将故障综合分析数据包通过电力网络正向隔离装置发送给WEB服务器，所述WEB服务器将数据存储在所述III区数据中心。The credit assurance system includes a second application server, and the second application server sends protection action events and recorded waves to the first application server; the first application server forwardly isolates the fault comprehensive analysis data packet through the power network The device sends to the WEB server, and the WEB server stores the data in the Zone III data center.
所述通信服务器还与行波测距装置及小电流接地选线装置通信。The communication server also communicates with the traveling wave distance measuring device and the small current grounding line selection device.
电网故障综合分析平台的工作方法，The working method of the power grid fault comprehensive analysis platform,
从保信系统获取保护装置记录的针对单个间隔的故障信息；Obtain the fault information for a single interval recorded by the protection device from the guarantee system;
从故障录波装置获取故障期间的电网电气量的变化信息，从多个录波文件中，不依赖于装置时钟，不受装置采样方式差异影响，把所有故障相关波形数据放在同一个时间轴上进行展示，来反映电网故障期间各个电气元件的变化情况从而判断故障区域和性质。Obtain the change information of the electrical quantity of the power grid during the fault period from the fault recording device, and from multiple recording files, it does not depend on the device clock and is not affected by the difference in device sampling methods, and puts all fault-related waveform data on the same time axis It is displayed on the grid to reflect the changes of various electrical components during the grid fault to judge the fault area and nature.
故障分析模块和保信系统做数据接口，取得一次、二次设备的模型及关联关系，在电网发生故障后获得保护装置的动作事件、开关变位、录波数据等故障信息，和故障录波设备的录波信息进行自动匹配，把一次电网故障的所有相关信息整合在一起。利用原有的隔离装置和III区服务器实现数据对接。同时将故障数据及常用功能封装接入海南电网科技创新平台进行展示，并将故障数据发布到海量数据平台，实现数据共享，并支持向移动设备推送故障报告，实现在平板或手机上分析电网故障功能。The fault analysis module and the guarantee system make a data interface to obtain the models and correlations of the primary and secondary equipment, and obtain fault information such as the action event of the protection device, switch displacement, and wave recording data after the power grid fails, and the fault wave recording equipment Automatically match the recorded wave information, and integrate all relevant information of a power grid fault. Use the original isolation device and the server in Zone III to realize data connection. At the same time, the fault data and commonly used functions are packaged and connected to the Hainan Power Grid Science and Technology Innovation Platform for display, and the fault data is released to the massive data platform to realize data sharing, and supports push fault reports to mobile devices, so as to analyze power grid faults on tablets or mobile phones Function.
该系统能够综合站内故障录波装置、保信主站系统及行波测距装置的故障信息，快速判断电网故障的类型，实现故障定位，并自动给出故障分析报告。The system can integrate the fault information of the fault recording device in the station, Baoxin master station system and traveling wave distance measuring device, quickly judge the type of power grid fault, realize fault location, and automatically give a fault analysis report.
大规模电网故障区域快速定位、故障智能诊断的方法包括：电网正常运行时，以固定时间间隔自动召唤故障录波采样并进行以输变电设备为单元的相电流差动值计算，差流值应几乎为零。如果差流计算值大于对应设备的差流越限值(各设备的差流越限值整定为电网最大运行方式时应负荷不平衡、CT误差等因素导致可能出现的最大差流值)，通过调度主站远程调整故障录波器接入间隔通道名称、CT极性及变比系数，保证电网正常运行时所有输变电设备的差流计算值均接近于零。电网发生故障时，根据故障录波器上送的故障数据，分别以电网独立设备为计算单元，进行电网一次电流的差流计算；将差流值与差流整定值比较，实现准确故障位置定位及保护动作行为评价。The methods for rapid location of large-scale power grid fault areas and intelligent fault diagnosis include: when the power grid is in normal operation, it automatically calls for fault recording and sampling at fixed time intervals, and calculates the phase current differential value with the power transmission and transformation equipment as the unit. should be almost zero. If the differential current calculation value is greater than the differential current limit value of the corresponding equipment (when the differential current limit value of each device is set to the maximum operating mode of the power grid, it should be the maximum differential current value that may occur due to factors such as load imbalance and CT error), through The dispatching master station remotely adjusts the fault recorder access interval channel name, CT polarity and transformation ratio coefficient to ensure that the differential current calculation values of all power transmission and transformation equipment are close to zero when the power grid is in normal operation. When the power grid fails, according to the fault data sent by the fault recorder, the independent equipment of the power grid is used as the calculation unit to calculate the differential current of the primary current of the grid; the differential current value is compared with the differential current setting value to realize accurate fault location and evaluation of protective actions.
电网故障综合分析平台能够实现事故决策支持、保护动作行为分析及设备状态监视功能，包括故障快速定位、二次设备实时监视、故障智能诊断；故障信息多维度展示、综合录波图；装置运行工况、日志管理等辅助功能。The power grid fault comprehensive analysis platform can realize accident decision support, protection action behavior analysis and equipment status monitoring functions, including rapid fault location, real-time monitoring of secondary equipment, intelligent fault diagnosis; multi-dimensional display of fault information, comprehensive wave recording; device operation work status, log management and other auxiliary functions.
把多个不同保护装置、故录装置记录的故障波形放到同一个时间轴进行展示，反映故障发生期间相关电气元件变化情况、保护动作情况。传统的录波展示方法可以展示一个装置记录的单次故障波形，而电力故障发生过程中会有多个不同装置产生录波数据，分析这些数据时需要打开多个录波展示窗口，展示时存在以下问题：装置的时钟不一致，故障时刻波形无法对齐；装置的采样频率不同、记录压缩的方式不同，导致波形显示没法在同一个时间轴上对齐。尤其是复杂故障，时间跨度大，且同一台装置也会多次启动产生录波，传统的录波展示无法在同一个时间轴上展示故障的发展过程。本研究方法针对上述问题，提出一种使用综合录波图的方式把来自多个装置的单次或若干次录波数据放到同一个时间坐标下进行展示、比较及分析的解决方案。Put the fault waveforms recorded by multiple different protection devices and fault recording devices on the same time axis for display, reflecting the changes of related electrical components and protection actions during the fault occurrence. The traditional wave recording and display method can display a single fault waveform recorded by a device, but in the process of a power failure, multiple different devices will generate wave recording data. When analyzing these data, it is necessary to open multiple wave recording display windows. The following problems: the clocks of the devices are inconsistent, and the waveforms at the time of the failure cannot be aligned; the sampling frequencies of the devices are different, and the recording compression methods are different, so the waveform display cannot be aligned on the same time axis. Especially for complex faults, the time span is large, and the same device will be started multiple times to generate waves. The traditional wave recording display cannot show the development process of the fault on the same time axis. Aiming at the above problems, this research method proposes a solution to display, compare and analyze single or several wave recording data from multiple devices under the same time coordinate by using a comprehensive wave recording graph.
通过对录波装置记录中的直流通道数据进行分析，实现对站内直流母线运行电压进行监视和分析及告警。By analyzing the DC channel data recorded by the wave recording device, the monitoring, analysis and alarm of the DC bus operating voltage in the station are realized.
通过对录波装置记录中的直流通道数据进行分析，对站内直流系统运行状态进行评价。目前故障录波装置的接入规范中明确要求把站内的直流也接入到录波装置中，可以采用手动录波的方式获得现场当前直流供电系统的状况，根据分析波形数据，对直流系统的运行进行状态进行评判。By analyzing the DC channel data recorded by the wave recording device, the operating status of the DC system in the station is evaluated. At present, the access specification of the fault recording device clearly requires that the DC in the station be connected to the recording device, and the current status of the DC power supply system on site can be obtained by manual recording. According to the analysis of the waveform data, the DC system The running status is judged.
通过对录波装置记录的中直流通道数据进行分析，对站内母线直流运行电压进行监视和分析，实现母线直流电压告警功能。By analyzing the medium and direct current channel data recorded by the wave recording device, the DC operating voltage of the bus in the station is monitored and analyzed, and the bus DC voltage alarm function is realized.
本发明为快速准确地排除电网故障提供有力的依据和保障，为调控人员提供事故决策、运维人员提供故障分析的一站式解决方案。The invention provides a powerful basis and guarantee for quickly and accurately eliminating grid faults, and provides a one-stop solution for accident decision-making for control personnel and fault analysis for operation and maintenance personnel.
上述虽然结合附图对本发明的具体实施方式进行了描述，但并非对本发明保护范围的限制，所属领域技术人员应该明白，在本发明的技术方案的基础上，本领域技术人员不需要付出创造性劳动即可做出的各种修改或变形仍在本发明的保护范围以内。Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to pay creative work Various modifications or variations that can be made are still within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810488231.XACN108666992B (en) | 2018-05-21 | 2018-05-21 | Power grid fault comprehensive analysis platform and working method |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810488231.XACN108666992B (en) | 2018-05-21 | 2018-05-21 | Power grid fault comprehensive analysis platform and working method |
| Publication Number | Publication Date |
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| CN108666992Atrue CN108666992A (en) | 2018-10-16 |
| CN108666992B CN108666992B (en) | 2020-04-07 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810488231.XAActiveCN108666992B (en) | 2018-05-21 | 2018-05-21 | Power grid fault comprehensive analysis platform and working method |
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| CN (1) | CN108666992B (en) |
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| TR01 | Transfer of patent right | Effective date of registration:20231219 Address after:No. 32 Haifu Road, Haikou City, Hainan Province, 571100 Patentee after:HAINAN POWER GRID Co.,Ltd. Patentee after:Hainan Electric Power Industry Development Co.,Ltd. Address before:No.32, Haifu Road, Haikou, Hainan 570203 Patentee before:HAINAN POWER GRID Co.,Ltd. |