WO2021109524A1 - 基于电力采集终端的台区停电故障实时定位方法 - Google Patents

基于电力采集终端的台区停电故障实时定位方法 Download PDF

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WO2021109524A1
WO2021109524A1 PCT/CN2020/095233 CN2020095233W WO2021109524A1 WO 2021109524 A1 WO2021109524 A1 WO 2021109524A1 CN 2020095233 W CN2020095233 W CN 2020095233W WO 2021109524 A1 WO2021109524 A1 WO 2021109524A1
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power
fault
real
collection terminal
station
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PCT/CN2020/095233
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English (en)
French (fr)
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丁皓
邓士伟
苗青
戴聪
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江苏智臻能源科技有限公司
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Publication of WO2021109524A1 publication Critical patent/WO2021109524A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/088—Aspects of digital computing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors

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  • the invention relates to a real-time location method for a power outage fault in a station area based on a power acquisition terminal, and belongs to the technical field of power monitoring.
  • the terminal operating on site judges the power outage condition based on the terminal’s own power supply.
  • the power outage condition of the entire station area cannot be objectively reflected, and this method of judgment can only generate a corresponding power outage event when the mains power is lost.
  • Failure to respond to the point of failure in time; the use of terminal power outage information by the master station is limited to the recording and display of a single terminal, without further analysis based on the corresponding information, unable to reflect the power outage status of the entire station area.
  • the present invention proposes a real-time location method for power outage faults in a station area based on a power acquisition terminal.
  • the present invention provides a real-time location method for a power outage fault in a station area based on a power acquisition terminal, that is, a power outage fault occurs within a station area, which can quickly locate the fault point, troubleshoot the fault, restore power usage, and improve utilization.
  • the present invention adopts the following technical solutions:
  • the method for real-time locating power outage faults in stations based on power acquisition terminals includes the following steps:
  • Step 1 Determine the deployment plan of the power collection terminal: conduct a power survey and data collection on the monitoring station area, and record the topological relationship of the power equipment in the monitoring station area.
  • the power equipment includes transformers, outlet cabinets, branch boxes and meter boxes, and the monitoring stations are determined accordingly District power collection terminal deployment plan;
  • Step 2 Deploy the terminal and record the information: Deploy the corresponding power collection terminal in the meter box and the outlet cabinet of the monitoring station area, and record the collection terminal number and deployment location information;
  • Step 3 The master station system generates a topological relationship diagram: the topological relationship of the power equipment and the related power acquisition terminal number and location information are entered into the master station system, and the master station generates a topological relationship diagram of the monitoring station area;
  • Step 4 Event alarm: When a power outage or power-on event occurs on site, the power collection terminal will actively alarm the master station and report the specific situation of the event;
  • Step 5 Locate and report the monitoring fault point: The master station locates the fault point on the power outage or power-on event reported by the power acquisition terminal, and updates the fault monitoring topology diagram in real time.
  • the voltage acquisition module of the power acquisition terminal in the fourth step uses a voltage transformer to convert the mains electricity into a low voltage acceptable to the metering chip.
  • the metering chip converts the low voltage into a digital signal and sends it to the MCU unit.
  • the MCU unit reads After the digital signal is converted by the proportional coefficient, the monitored real voltage is obtained.
  • step 4 when on-site power outage occurs in step 4, the operation of the power collection terminal is switched from the mains power supply to the backup power supply provided by the super capacitor.
  • the GPRS module of the power collection terminal reports the power failure to the master station, and the power collection terminal receives the power supply from the master station. Station’s reply message, stop reporting the power outage.
  • step 4 the power collection terminal resumes operation and actively reports the power-on event to the master station.
  • the master station updates the topological relationship diagram of the station area in real time according to the power outage event reported by the power collection terminal, and the power outage range is marked in red.
  • the master station updates the power outage range marked in red to black according to the power-on event reported by the power collection terminal, indicating that the power outage range is restored to power, and updates the station area topology diagram again.
  • the frequency of the voltage collected by the MCU unit is 800 Hz.
  • the real-time location method for power outage faults in the station area based on the power acquisition terminal of the present invention can intuitively and effectively monitor the power supply situation in the station area in real time, mark the power outage range when a power outage occurs, and efficiently help the power supply unit provide fault point information and troubleshoot faults. Restore electricity and improve customer satisfaction with electricity.
  • FIG. 1 is a schematic diagram of the process of the present invention
  • Figure 2 is a topological diagram of the real-time fault monitoring of the present invention.
  • Step 1 Determine the power supply range of the 10kV Juhujiayuan #1 Intermediate Substation, conduct field investigation and data collection of the station area, determine the topological relationship of the station area's transformer, outlet cabinet, branch box, and meter box, and determine the power collection accordingly Terminal deployment plan.
  • Step 2 According to the deployment plan, install 26 power collection terminals in the meter box and 3 outgoing cabinet collection terminals in the meter box respectively, and record the relevant collection terminal number and deployment location and other information.
  • Step 3 Enter the topological relationship of the station area in step 1 and the related power collection terminal number and deployment location in step 2 into the master station system, and the master station generates a topological diagram of the station area accordingly.
  • Step 4 When a power outage/power-on event occurs on site, the power collection terminal will actively report the corresponding event to the master station, which specifically includes the following steps:
  • Step 4.1 The voltage acquisition module of the power acquisition terminal converts the mains power into a low voltage acceptable to the metering chip through a voltage transformer, and converts it into a digital signal through the metering chip. After reading it by the MCU unit, the calculated scale factor is converted to get The real voltage monitored.
  • Step 4.2 MCU acquisition voltage frequency is 800HZ.
  • Step 4.3 The mains power supply is restored, and after the power collection terminal resumes operation, it will actively report the power-on event to the master station.
  • Step 5 The master station updates the fault monitoring topology map in real time according to the shutdown/power-on events reported by the power collection terminal to locate the fault point. Specifically include the following steps:
  • Step 5.1 The master station system updates the topological map of the station area in real time according to the power outage reported by the power collection terminal, marking the blackout range in red, so that the power supply unit can quickly locate the fault point, troubleshoot the fault, and restore power.
  • Step 5.2 According to the power-on event reported by the power collection terminal, the main station system updates the blackout range marked in red to black, indicating that the power outage range is restored.
  • Step 5.3 The power supply unit can monitor the power supply situation of the station area in real time according to the topology fault map updated by the master station in real time for the station area to ensure the reliability of power supply.
  • the invention monitors power outages or power-on by arranging power acquisition terminals in the meter box, and reports to the master station in real time.
  • the master station updates the topology fault map in time, locates the fault point, marks the fault range, and can intuitively and effectively monitor the power supply situation of the station area in real time. , In the event of a power outage, mark the scope of the power outage, and efficiently help the power supply unit provide fault point information, troubleshoot faults, restore power, and improve customer satisfaction with electricity.

Abstract

一种基于电力采集终端的台区停电故障实时定位方法，包括以下步骤：1.确定电力采集终端部署方案，2.部署终端并记录信息，3.主站系统生成拓扑关系图，4.事件报警，5.定位并上报监测故障点。通过在表箱和出线柜布置电力采集终端对停电或上电实施监测，并实时上报主站，主站及时更新拓扑故障图并定位故障点，标记故障范围，能够直观有效的实时监测台区供电情况，在发生停电故障时，标记停电范围，高效率帮助供电单位提供故障点信息，排查故障，恢复用电，提高用电客户满意度。

Description

基于电力采集终端的台区停电故障实时定位方法 技术领域
本发明涉及基于电力采集终端的台区停电故障实时定位方法，属于电力监测技术领域。
背景技术
目前，我国电网线路结构复杂，环境多样多变，当供电线路发生停电故障，需要逐段排查故障发生位置，不但工作强度大，而且还会延误抢修时间，影响供电可靠性。
当前，现场运行的终端对于停电状况的判断根据终端自身供电情况产生，对于整个台区停电状况无法进行客观的体现，并且这种判断方式只有在市电掉电情况下才能产生相应的停电事件，无法及时反应故障点；主站方面对于终端停电信息方面的利用，仅仅局限于对于单个终端的记录和展示，未根据相应信息作进一步分析，无法体现整个台区停电状况。为了能够利用终端停电信息对于台区运行状况进行监测，需要对现有终端停/上电事件进行整体规划和监控，并对通过主站功能进行完善。
因此，本发明提出一种基于电力采集终端的台区停电故障实时定位方法。
发明内容
为了克服现有技术的不足，本发明提供了基于电力采集终端的台区停电故障实时定位方法，即在台区范围发生停电故障，能够迅速定位故障点，并排查故障，恢复用电，提高用电客户满意度，以解决上述问题，本发明采用以下技术方案：
基于电力采集终端的台区停电故障实时定位方法，包括以下步骤：
步骤一：确定电力采集终端部署方案：对监测台区进行电力调查和资料收集，记录监测台区电力设备的拓扑关系，电力设备包括变压器、出线柜、分支箱和表箱，依此确定监测台区电力采集终端部署方案；
步骤二：部署终端并记录信息：分别在监测台区的表箱和出线柜部署相应的电力采集终端，并记录采集终端编号和部署位置信息；
步骤三：主站系统生成拓扑关系图：将电力设备的拓扑关系和相关的电力采集终端编号、位置信息录入主站系统，主站生成监测台区的拓扑关系图；
步骤四：事件报警：当现场发生停电或上电事件，电力采集终端主动向主站报警，汇报事件的具体情况；
步骤五：定位并上报监测故障点：主站对电力采集终端上报的停电或上电事件定位故障点，并实时更新故障监测拓扑关系图。
进一步的，所述步骤四中电力采集终端的电压采集模块通过电压互感器将市电转换为计量芯片可接受的低电压，计量芯片将低电压转化为数字信号发送至MCU单元，MCU单元读取数字信号并通过比例系数换算后得到监测的真实电压。
进一步的，所述步骤四中现场停电时，电力采集终端运行由市电供电切换至超级电容提供的备用电源供电，电力采集终端的GPRS模块将停电故障上报至主站，电力采集终端收到主站的回复信息，停止停电事件上报。
进一步的，所述步骤四中现场上电时，电力采集终端恢复运行并主动上报上电事件至主站。
进一步的，所述步骤五中主站根据电力采集终端上报的停电事件，实时更新台区拓扑关系图，红色标记停电范围。
进一步的，所述步骤五中主站根据电力采集终端上报的上电事件，将红色标记的停电范围更新为黑色，表示停电范围恢复供电，并再次更新台区拓扑关系图。
进一步的，所述MCU单元采集电压频率为800HZ。
有益效果：
本发明的基于电力采集终端的台区停电故障实时定位方法，能够直观有效的实时监测台区供电情况，在发生停电故障时，标记停电范围，高效率帮助供电单位提供故障点信息，排查故障，恢复用电，提高用电客户满意度。
附图说明
图1为本发明的流程示意图，
图2为本发明的实时故障监测拓扑关系图。
具体实施方式
下面结合附图和具体实施例，进一步阐明本发明，应理解这些实施例仅用于说明本发明而不用于限制本发明的范围，在阅读了本发明之后，本领域技术人员对本发明的各种等价形式的修改均落于本申请所附权利要求所限定的范围。
以下将结合常州10kV聚湖家园#1中间变电所电力采集终端部署和主站监测来详细说明本发明的方案。
实施例1：
步骤1：确定10kV聚湖家园#1中间变电所供电范围，对该台区实地调查和资料收集，确定该台区变压器、出线柜、分支箱、表箱的拓扑关系，依此确定电力采集终端部署方案。
步骤2：依据部署方案，分别在表箱安装26个电力采集终端和出线柜安装3个出线柜采集终 端，并记录相关采集终端编号和部署位置等信息。
步骤3：将步骤1中的台区拓扑关系和步骤2中的相关电力采集终端编号和部署位置等信息录入主站系统，主站依此生成该台区的拓扑关系图。
步骤4：当现场发生停电/上电事件时，电力采集终端会主动向主站上报相应事件，具体包括如下步骤：
步骤4.1：电力采集终端的电压采集模块通过电压互感器将市电转换为计量芯片可接受的低电压，通过计量芯片转化化为数字信号，MCU单元读取后，经过计算的比例系数换算后得到监测到的真实电压。
步骤4.2：MCU采集电压频率为800HZ，一旦市电发生掉电，电力采集终端运行由市电切换至超级电容提供的备用电源供电模式，同时，通过GPRS模块将其停电故障上报至主站，电力采集终端收到主站的回复确认信息，停止停电事件上报，确保停电事件上报至主站。
步骤4.3：市电恢复供电，电力采集终端恢复运行后，主动上报上电事件至主站。
步骤5：主站依据电力采集终端会上报的停/上电事件，实时更新故障监测拓扑图，定位故障点。具体包括如下步骤：
步骤5.1：主站系统根据电力采集终端上报的停电事件，实时更新该台区拓扑图，红色标记停电范围，方便供电单位能够迅速定位故障点，并排查故障，恢复用电。
步骤5.2：主站系统根据电力采集终端上报的上电事件，将红色标记的停电范围更新黑色，表示停电范围恢复供电。
步骤5.3：供电单位可根据主站对该台区实时更新的拓扑故障图，实时监测该台区的供电情况，确保供电可靠性。
本发明通过在表箱布置电力采集终端对停电或上电实施监测，并实时上报主站，主站及时更新拓扑故障图并定位故障点，标记故障范围，能够直观有效的实时监测台区供电情况，在发生停电故障时，标记停电范围，高效率帮助供电单位提供故障点信息，排查故障，恢复用电，提高用电客户满意度。
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。

Claims (7)

  1. 基于电力采集终端的台区停电故障实时定位方法，其特征在于：包括以下步骤：
    步骤一：确定电力采集终端部署方案：对监测台区进行电力调查和资料收集，记录监测台区电力设备的拓扑关系，电力设备包括变压器、出线柜、分支箱和表箱，依此确定监测台区电力采集终端部署方案；
    步骤二：部署终端并记录信息：分别在监测台区的表箱和出线柜部署相应的电力采集终端，并记录采集终端编号和部署位置信息；
    步骤三：主站系统生成拓扑关系图：将电力设备的拓扑关系和相关的电力采集终端编号、位置信息录入主站系统，主站生成监测台区的拓扑关系图；
    步骤四：事件报警：当现场发生停电或上电事件，电力采集终端主动向主站报警，汇报事件的具体情况；
    步骤五：定位并上报监测故障点：主站对电力采集终端上报的停电或上电事件定位故障点，并实时更新故障监测拓扑关系图。
  2. 根据权利要求1所述的基于电力采集终端的台区停电故障实时定位方法，其特征在于：所述步骤四中电力采集终端的电压采集模块通过电压互感器将市电转换为计量芯片可接受的低电压，计量芯片将低电压转化为数字信号发送至MCU单元，MCU单元读取数字信号并通过比例系数换算后得到监测的真实电压。
  3. 根据权利要求1所述的基于电力采集终端的台区停电故障实时定位方法，其特征在于：所述步骤四中现场停电时，电力采集终端运行由市电供电切换至超级电容提供的备用电源供电，电力采集终端的GPRS模块将停电故障上报至主站，电力采集终端收到主站的回复信息，停止停电事件上报。
  4. 根据权利要求1所述的基于电力采集终端的台区停电故障实时定位方法，其特征在于：所述步骤四中现场上电时，电力采集终端恢复运行并主动上报上电事件至主站。
  5. 根据权利要求1所述的基于电力采集终端的台区停电故障实时定位方法，其特征在于：所述步骤五中主站根据电力采集终端上报的停电事件，实时更新台区拓扑关系图，红色标记停电范围。
  6. 根据权利要求1所述的基于电力采集终端的台区停电故障实时定位方法，其特征在于：所述步骤五中主站根据电力采集终端上报的上电事件，将红色标记的停电范围更新为黑色，表示停电范围恢复供电，并再次更新台区拓扑关系图。
  7. 根据权利要求2所述的基于电力采集终端的台区停电故障实时定位方法，其特征在于：所 述MCU单元采集电压频率为800HZ。
PCT/CN2020/095233 2019-12-03 2020-06-09 基于电力采集终端的台区停电故障实时定位方法 WO2021109524A1 (zh)

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