CN102709905B - Power supply reliability automatic calculation and analysis device and method for low-voltage distribution network - Google Patents
Power supply reliability automatic calculation and analysis device and method for low-voltage distribution network Download PDFInfo
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Abstract
本发明公开了一种低压配网供电可靠率自动计算分析装置及方法，智能剩余电流动作保护器实时监测及上传低压用户跳闸闭锁时间、合闸时间、失电时间、恢复送电时间的数据并上报告警信息至服务器网络最后存储在县局监控中心服务器的低压配网可靠率的分析系统基础数据库中，监控终端输入低压用户数据、单户或多户检修、临时和抢修的停电事件并存储在低压配网可靠率的分析系统基础数据库中，县局监控中心服务器将输入的数据进行处理分析并最终在监控终端上显示。本发明建立一套带有低压配网供电可靠性实时自动计算的低压配网供电可靠性分析系统，解决了低压配网供电可靠性数理统计困难、烦琐的问题，同时提高低压配网供电可靠率的准确率。
The invention discloses a low-voltage distribution network power supply reliability automatic calculation and analysis device and method. The intelligent residual current action protector monitors in real time and uploads the data of the low-voltage user's trip lock time, switch-on time, power-off time, and power-recovery time. Report the alarm information to the server network and finally store it in the basic database of the low-voltage distribution network reliability analysis system of the county bureau monitoring center server. The monitoring terminal inputs low-voltage user data, single-household or multi-household maintenance, temporary and emergency repair power outage events and stores them. In the basic database of the low-voltage distribution network reliability analysis system, the server of the county bureau monitoring center processes and analyzes the input data and finally displays it on the monitoring terminal. The present invention establishes a set of low-voltage distribution network power supply reliability analysis system with real-time automatic calculation of low-voltage distribution network power supply reliability, which solves the problem of difficult and cumbersome mathematical statistics of low-voltage distribution network power supply reliability, and at the same time improves the low-voltage distribution network power supply reliability rate the accuracy rate.
Description
技术领域 technical field
本发明涉及一种低压配网供电可靠率自动计算分析方法及装置。The invention relates to a method and device for automatically calculating and analyzing the power supply reliability of a low-voltage distribution network.
背景技术 Background technique
要准确计算低压用户供电可靠率，关键是要有准确的停电时间、停电次数、停电户数。而现这些数据全需人工从报修记录、停送电操作票、工作票等中提取后再进行统计，这样不仅工作烦琐，而且使得统计数据不全面，降低供电可靠率的准确性。To accurately calculate the power supply reliability rate of low-voltage users, the key is to have accurate power outage time, number of power outages, and number of power outage households. Now these data need to be manually extracted from repair records, power outage operation tickets, work tickets, etc., and then counted. This is not only cumbersome, but also makes statistical data incomplete and reduces the accuracy of power supply reliability.
发明内容 Contents of the invention
本发明所要解决的技术问题就是提供一种低压配网供电可靠率自动计算分析装置及方法，建立一套带有低压配网供电可靠性实时自动计算的低压配网供电可靠性分析系统，解决低压配网供电可靠性数理统计困难、烦琐的问题，同时提高低压配网供电可靠率的准确率。The technical problem to be solved by the present invention is to provide a low-voltage distribution network power supply reliability automatic calculation and analysis device and method, establish a set of low-voltage distribution network power supply reliability analysis system with real-time automatic calculation of low-voltage distribution network power supply reliability, and solve low-voltage distribution network power supply reliability analysis system. Mathematical statistics of distribution network power supply reliability are difficult and cumbersome issues, and at the same time improve the accuracy of low-voltage distribution network power supply reliability.
为解决上述技术问题，本发明采用如下技术方案：一种低压配网供电可靠率自动计算分析装置，包括低压供电线路与配变设备组成的低压配网，其特征在于：所述低压供电线路出线端上安装有智能剩余电流动作保护器及交流接触器，智能剩余电流动作保护器同时与交流接触器连接，智能控制终端接入低压配网并与所述智能剩余电流动作保护器通过485通讯线连接，智能控制终端同时接入省公司GPRS无线网络平台服务器、市局服务器与县局监控中心服务器组成的服务器网络，县局监控中心服务器网络连接至少一个监控终端，其中智能剩余电流动作保护器实时监测及上传低压用户跳闸闭锁时间、合闸时间、失电时间、恢复送电时间的数据并上报告警信息至服务器网络最后存储在县局监控中心服务器的低压配网可靠率的分析系统基础数据库中，监控终端自动输入低压用户数据、单户或多户检修、临时和抢修的停电事件并存储在低压配网可靠率的分析系统基础数据库中，县局监控中心服务器将输入的数据进行处理分析并最终在监控终端上显示。In order to solve the above technical problems, the present invention adopts the following technical solution: a low-voltage distribution network power supply reliability automatic calculation and analysis device, including a low-voltage distribution network composed of low-voltage power supply lines and distribution equipment, characterized in that: the low-voltage power supply lines go out An intelligent residual current action protector and an AC contactor are installed on the terminal. The intelligent residual current action protector is connected to the AC contactor at the same time. The intelligent control terminal is connected to the low-voltage distribution network and communicates with the intelligent residual current action protector through a 485 communication line. Connection, the intelligent control terminal is simultaneously connected to the server network composed of the GPRS wireless network platform server of the provincial company, the city bureau server and the county bureau monitoring center server. The county bureau monitoring center server network is connected to at least one monitoring terminal, and the intelligent residual current action protector is Monitor and upload the data of low-voltage user tripping and locking time, closing time, power failure time, and power transmission time, and report the alarm information to the server network, and finally store it in the basic database of the low-voltage distribution network reliability analysis system of the county bureau monitoring center server Among them, the monitoring terminal automatically inputs low-voltage user data, single-household or multi-household maintenance, temporary and emergency repair power outage events and stores them in the basic database of the low-voltage distribution network reliability analysis system, and the county bureau monitoring center server processes and analyzes the input data And finally displayed on the monitoring terminal.
优选的，所述低压电网为0.4kV低压配网。Preferably, the low-voltage power grid is a 0.4kV low-voltage distribution network.
本发明还提供了上述低压配网供电可靠率自动计算分析方法，其特征在于：包括以下步骤：The present invention also provides the above-mentioned method for automatically calculating and analyzing the power supply reliability of the low-voltage distribution network, which is characterized in that it includes the following steps:
步骤0：智能剩余电流动作保护器实时监测跳闸闭锁时间、合闸时间、失电时间、恢复送电时间的相关数据，并把结果保存到低压配网可靠率的分析系统基础数据库；Step 0: The intelligent residual current action protector monitors the relevant data of tripping blocking time, closing time, power failure time, and power transmission time in real time, and saves the results to the basic database of the analysis system of low-voltage distribution network reliability;
步骤1：从电力营销系统导出excel的低压用户数据，然后在监控终端通过excel导入到低压配网可靠率的分析系统基础数据库；Step 1: Export the low-voltage user data of excel from the power marketing system, and then import it into the basic database of the low-voltage distribution network reliability analysis system through excel at the monitoring terminal;
步骤2：自动汇总基本用户数据，并按台区分线保存到低压配网可靠率的分析系统基础数据库分析表内；Step 2: Automatically summarize the basic user data, and save them into the basic database analysis table of the low-voltage distribution network reliability analysis system according to the station division line;
步骤3：智能分析与自动计算智能剩余电流动作保护器上报告警信息，并按台区分线汇总保存到分析表内；Step 3: Intelligent analysis and automatic calculation The intelligent residual current action protector reports the alarm information, and summarizes and saves it in the analysis table according to the division line of the station;
步骤4：将单户或多户检修、临时和抢修的停电事件在监控终端采用手工录入方式存入分析表，做为停电计划因素进行筛选统计；Step 4: The outage events of single-household or multi-household maintenance, temporary and emergency repair are stored in the analysis table by manual entry in the monitoring terminal, and they are used as power outage plan factors for screening and statistics;
步骤5：县局监控中心服务器自动计算和比对统计出台区分线低压配网供电可靠率，并保存到低压配网可靠率的分析系统基础数据库中；Step 5: The server of the monitoring center of the county bureau automatically calculates and compares statistics to publish the reliability rate of the power supply of the low-voltage distribution network of the line, and saves it in the basic database of the analysis system of the reliability rate of the low-voltage distribution network;
步骤6：根据每天每小时上传数据，县局监控中心服务器将分析结果显示在监控终端上；Step 6: According to the data uploaded every hour every day, the county bureau monitoring center server will display the analysis results on the monitoring terminal;
步骤7：县局监控中心服务器统计出可靠率月报并将可靠率月报进行比对和分析，在监控终端上显示出指标值波动现象。Step 7: The server of the monitoring center of the county bureau calculates the monthly reliability rate report and compares and analyzes the monthly reliability rate report, and the index value fluctuation phenomenon is displayed on the monitoring terminal.
本发明利用智能剩余电流动作保护器实时监控跳闸闭锁时间、合闸时间、失电时间、恢复送电时间等自动上传告警数据，建立一套带有低压配网供电可靠性实时自动计算的低压配网供电可靠性分析系统，解决了低压配网供电可靠性数理统计困难、烦琐的问题，同时提高低压配网供电可靠率的准确率。The invention utilizes the intelligent residual current action protector to monitor the trip lock time, closing time, power failure time, power supply recovery time, etc. to automatically upload alarm data in real time, and establishes a set of low-voltage distribution network with real-time automatic calculation of power supply reliability of low-voltage distribution network. The network power supply reliability analysis system solves the difficult and cumbersome problems of mathematical statistics on the reliability of low-voltage distribution network power supply, and at the same time improves the accuracy of low-voltage distribution network power supply reliability.
附图说明 Description of drawings
下面结合附图和具体实施方式对本发明作进一步描述：The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
图1是根据本发明的系统结构图。Fig. 1 is a system structure diagram according to the present invention.
具体实施方式 Detailed ways
结合图1本发明的系统结构图对本发明做具体说明，本发明主要以0.4kV低压配网统计台区分线供电可靠率为研究对象，建立一套带有低压配网供电可靠性实时统计的低压配网供电可靠性分析系统，对0.4kV低压配网供电可靠率进行监测，并通过利用智能剩余电流动作保护器实时监测跳闸闭锁时间、合闸时间、失电时间、恢复送电时间的自动告警信息，低压用户数据、等效户数、单户或多户的停电事件等因素自动计算和分析低压配网供电可靠率，可适用于县级供电企业进行低压配网供电可靠率的监控及管理，从而有针对性的制定提高县局供电可靠性指标提供科学依据。In conjunction with the system structure diagram of the present invention in Fig. 1, the present invention is described in detail. The present invention mainly takes the 0.4kV low-voltage distribution network statistical station division line power supply reliability rate as the research object, and establishes a set of low-voltage distribution network with real-time statistics on the power supply reliability of the low-voltage distribution network. The distribution network power supply reliability analysis system monitors the reliability rate of the 0.4kV low-voltage distribution network power supply, and uses the intelligent residual current action protector to monitor the automatic alarm of the trip lock time, closing time, power loss time, and power transmission time in real time Information, low-voltage user data, equivalent number of households, single-household or multi-household power outage events and other factors automatically calculate and analyze the reliability rate of low-voltage distribution network power supply, which can be applied to county-level power supply enterprises to monitor and manage the reliability rate of low-voltage distribution network power supply , so as to provide a scientific basis for the targeted development of indicators to improve the reliability of county bureau power supply.
该套装置包括智能剩余电流动作保护器100、交流接触器101、智能控制终端104、省公司GPRS无线网络平台服务器105、市局服务器106、县局监控中心服务器107、监控终端108。The set of devices includes an intelligent residual
1.在该套装置的交流接触器触点下位20cm处装设一体式电流互感器102收集低压出线的A/B/C三相电流值；1. An integrated
2.电流互感器下位10cm处装设零序互感器103采集漏电电流值；2. A zero-
3.收集智能剩余电流动作保护器100运行状态数据、三相电流值、漏电电流值、故障信息、分(合)闸信息、停电时间、恢复送电时间等关键数据通过RS485接口传至智能控制终端104收集数据保存到存储器中，然后通过该终端的GRPS装置，将数据经无线公网传递给省公司GPRS无线网络平台服务器105，进行数据过滤，经内网通道传递给市局服务器106，再由市局传至县局监控中心服务器107，安装在该服务器的前置机软件将数据接收、筛选后转存到SQL Server 2000数据库中，然后利用开发的智能剩余电流动作保护器及低压配网供电可靠性管理系统。经WEB服务器发布程序组，供连接在内网上的任何一台监控终端108使用。由系统发送遥控、遥测、遥信指令远程控制智能剩余电流动作保护器100数据传递走向与上相反。3. Collect key data such as the operating status data, three-phase current value, leakage current value, fault information, opening (closing) information of the intelligent residual
自动计算方法：低压配网供电可靠率自动计算分析方法是利用智能剩余电流动作保护器分闸时间、合闸时间、失电时间和恢复送电时间的上传数据及智能剩余电流动作保护器停用、启用分类，并根据管理系统内“低压配网用户供电系统基本用户信息表”、“低压配网用户供电系统基本情况统计表”、“低压配网供电可靠性周停电计划表”和“低压配网供电可靠性实际停电记录表”基础数据，实现了低压配网供电可靠性指标的自动统计，做到每日有监控数据，每月自动生成“低压配网供电系统可靠性运行情况统计表”和“低压配网供电可靠率报表”。Automatic calculation method: The automatic calculation and analysis method of low-voltage distribution network power supply reliability is to use the uploaded data of the opening time, closing time, power-off time and recovery time of the intelligent residual current action protector and the deactivation of the intelligent residual current action protector , Enable classification, and according to the "Basic User Information Table of Low-Voltage Distribution Network User Power Supply System" in the management system, "Statistics Table of Basic Situation of Low-Voltage Distribution Network User Power Supply System", "Low-voltage Distribution Network Power Supply Reliability Weekly Power Outage Schedule" and Distribution Network Power Supply Reliability Actual Power Outage Record Table" basic data, realizes automatic statistics of low-voltage distribution network power supply reliability indicators, achieves daily monitoring data, and automatically generates monthly "low-voltage distribution network power supply system reliability operation statistics table " and "Low-Voltage Distribution Network Power Supply Reliability Report".
本发明的方法包括以下步骤：Method of the present invention comprises the following steps:
步骤0：自动采集智能剩余电流动作保护器实时监测跳闸闭锁时间、合闸时间、失电时间、恢复送电时间的相关数据，并把结果保存到数据库；Step 0: Automatically collect relevant data of the intelligent residual current action protector for real-time monitoring of trip blocking time, closing time, power failure time, and power transmission time, and save the results to the database;
步骤1：从电力营销系统导出excel的低压用户数据，然后通过excel导入到低压配网可靠率的分析系统基础数据库；Step 1: Export the excel low-voltage user data from the power marketing system, and then import it into the basic database of the low-voltage distribution network reliability analysis system through excel;
步骤2：自动汇总基本用户数据，并按台区分线保存到该表内；Step 2: Automatically summarize the basic user data, and save them into the table according to the station division;
步骤3：智能分析与自动计算智能剩余电流动作保护器上报告警信息，并按台区分线汇总保存到该表内；Step 3: Intelligent analysis and automatic calculation The intelligent residual current action protector reports the alarm information, and summarizes and saves it in the table according to the division line of the station;
步骤4：将单户或多户检修、临时和抢修的停电事件采用手工录入方式存入该表，做为停电计划因素进行筛选统计；Step 4: Manually enter power outage events for single or multi-household maintenance, temporary and emergency repairs into the table, and use them as power outage planning factors for screening and statistics;
步骤5：分析系统自动计算和比对可靠性基本情况统计(2)、可靠性运行情况统计(3)和停电计划(4)表内数据，重复部分，以可靠性运行情况统计(3)数据为准，统计出台区分线低压配网供电可靠率，并保存到数据库中；Step 5: The analysis system automatically calculates and compares the basic statistics of reliability (2), the statistics of reliability operation (3) and the data in the power outage plan (4). Based on the statistics, the power supply reliability rate of the low-voltage distribution network for different lines is counted and saved in the database;
步骤6：根据每天每小时上传数据，分析系统以曲线展现，是监控台区智能剩余电流动作保护器在当月停电事件的曲线和数据，是分析台区分线供电可靠性的基础数据，起着校对、核实、比对作用；Step 6: According to the data uploaded every hour every day, the analysis system displays the curves, which are the curves and data of the power outage events of the intelligent residual current action protector in the monitoring station area in the current month, and are the basic data for analyzing the reliability of the line power supply in the station area, and it is used for proofreading , verification and comparison;
步骤7：将可靠率月报(5)相关指标数据转存至该表，同时加载上月完成指标数据值，进行比对和分析，提示指标值波动现象。Step 7: Transfer the relevant indicator data of the reliability rate monthly report (5) to this table, and load the indicator data values completed in the previous month at the same time, perform comparison and analysis, and prompt the indicator value fluctuation phenomenon.
本发明利用漏电保护器实时监测的跳闸闭锁时间、合闸时间、失电时间、恢复送电时间和电力营销系统的低压用户信息及风险管控系统的周停电计划数据包传至分析系统服务器，由分析系统服务器完成一系列数据遴选、自动分析、归类统计及处理，最终建立一套带有低压配网供电可靠性实时自动计算的低压配网供电可靠性分析系统，解决了低压配网供电可靠性数理统计困难、烦琐的问题，同时提高低压配网供电可靠率的准确率。The present invention utilizes the trip lock time, closing time, power loss time, power supply recovery time, low-voltage user information of the power marketing system and the weekly power outage plan data packet of the risk management and control system to be transmitted to the analysis system server by using the real-time monitoring of the leakage protector. The analysis system server completes a series of data selection, automatic analysis, classification statistics and processing, and finally establishes a low-voltage distribution network power supply reliability analysis system with real-time automatic calculation of low-voltage distribution network power supply reliability, which solves the problem of low-voltage distribution network power supply reliability. Solve the difficult and cumbersome problems of sexual and mathematical statistics, and at the same time improve the accuracy of the reliability rate of low-voltage distribution network power supply.
低压配网供电可靠性分析系统的自动分析遴选原则有如下3个：The automatic analysis and selection principles of the low-voltage distribution network power supply reliability analysis system are as follows:
1、漏电保护器上传的恢复送电与失电时间差与周停电计划的实际停电时间相吻合，分析系统将自动删除漏电保护器上传的信息记录；1. The time difference between power transmission and power failure uploaded by the leakage protector is consistent with the actual power outage time of the weekly power outage plan, and the analysis system will automatically delete the information records uploaded by the leakage protector;
2、漏电保护器上传信息与周停电计划上传信息对比结果为否，那分析系统自动提取漏电保护器上传的失电、恢复送电时间计入分析表内；2. If the result of the comparison between the uploaded information of the leakage protector and the uploaded information of the weekly power outage plan is negative, then the analysis system will automatically extract the time of power failure and power transmission uploaded by the leakage protector and include it in the analysis table;
3、漏电保护器上传的跳闸闭锁与合闸时间数据全部计入分析表内。3. The data of tripping, locking and closing time uploaded by the leakage protector are all included in the analysis table.
低压配网供电可靠性分析系统的自动分析计算原则有如下3个：The automatic analysis and calculation principles of the low-voltage distribution network power supply reliability analysis system are as follows:
1、周停电计划上传的停电事件为配变停电检修，那就将该配变下所有用户纳入统计范围；1. The power outage event uploaded in the weekly power outage plan is a distribution transformer outage maintenance, then all users under the distribution transformer will be included in the statistical scope;
2、周停电计划上传的停电事件为单户或多户停电检修，那就将该配变下参与检修的用户纳入统计范围；2. If the power outage event uploaded by the weekly power outage plan is a single-household or multi-household power outage maintenance, then the users participating in the maintenance under the distribution transformer will be included in the statistical scope;
3、分析表内是漏电保护器上传的信息参与计算，那就是该配变接入该漏电保护器下的低压用户全部参与计算。3. In the analysis table, the information uploaded by the leakage protector participates in the calculation, that is, all low-voltage users connected to the leakage protector of the distribution transformer participate in the calculation.
以上所述权为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The rights described above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
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