WO2012065354A1 - 电能计量测量系统及其检测方法 - Google Patents

电能计量测量系统及其检测方法 Download PDF

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Publication number
WO2012065354A1
WO2012065354A1 PCT/CN2011/001647 CN2011001647W WO2012065354A1 WO 2012065354 A1 WO2012065354 A1 WO 2012065354A1 CN 2011001647 W CN2011001647 W CN 2011001647W WO 2012065354 A1 WO2012065354 A1 WO 2012065354A1
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Prior art keywords
measurement
metering
management system
management unit
electric energy
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PCT/CN2011/001647
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English (en)
French (fr)
Inventor
杜成刚
张宇
刘隽
蒋心泽
陆如
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上海市电力公司
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Publication of WO2012065354A1 publication Critical patent/WO2012065354A1/zh

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D4/00Tariff metering apparatus
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20Smart grids as enabling technology in buildings sector
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/30Smart metering, e.g. specially adapted for remote reading

Definitions

  • the invention relates to an electric energy metering and measuring system and a detecting method thereof. Background technique
  • the invention provides an electric energy measuring and measuring system and a detecting method thereof, which can perform real-time and accurate metering of electric energy.
  • the present invention provides an electric energy metering and measuring system, which comprises a metering management system, a plurality of metering management units, and a plurality of metering terminals.
  • the metering management system and the metering management unit are connected through a network interface to perform bidirectional data transmission, and the metering management unit and the metering terminal are connected by a bus to perform bidirectional data transmission.
  • the metering management unit comprises a control module, a display module and an interface module connected by a circuit.
  • the metering terminal comprises a circuit-connected sampling module, an AD sampling module and a data processing module, and a power module.
  • the sampling module comprises a voltage transformer and a current transformer.
  • the measurement management system periodically reads the measurement data in the measurement management unit in a polling manner, displays the real-time data, and periodically saves the historical data for later query and analysis.
  • the control module control interface module of the measurement management unit separately exchanges information with the measurement management system and the measurement terminal, and controls the display module to display the measured parameter quantities.
  • the sampling module in the measuring terminal collects the current and voltage sampling signals of each measuring point in real time, and after filtering by the signal filtering module, the sampling signal passes through the AD sampling module to obtain a digital signal, and the data processing module processes the digital signal to obtain the active energy,
  • the required telemetry data of reactive power, power factor, frequency, etc., and the measured telemetry is transmitted to the metrology management unit via the bus. Confirmation
  • the invention also provides a method for detecting an electric energy measurement and measurement system, the detection method comprising the following steps:
  • Step 1 The measurement management system is started, and the measurement terminal collects the sampling signals of each measurement point in real time. Step 2.
  • the measurement management system starts the network communication interface, and the measurement management unit opens the interface module.
  • Step 3. The metering management system determines whether the interface is enabled. If it is enabled, it will jump to step 4. If it is not, wait for the T time and then go to step 2.
  • Step 5 The measurement management system sends a call test command to the measurement management unit, and then waits for the W time, and proceeds to step 5.
  • Step 4.1 The measurement management system sends a call test command to the measurement management unit
  • Step 4.2 The measurement management unit determines whether the measurement data sent by the measurement terminal is received, and if yes, jumps to step 4.3, and if no, proceeds to step 4.2;
  • Step 4.3 The measurement management unit sends the measurement data to the measurement management system.
  • Step 5 The measurement management system determines whether the measurement data returned by the measurement management unit is received. If yes, go to step 6. If no, go to step 4.
  • Step 6 The measurement management system parses and classifies the received measurement data, and then jumps to step 4 to perform the next round of calls.
  • the measurement management system performs data storage every predetermined storage time.
  • the invention improves the safety, reliability and economy of the power supply of the power system, ensures the normal work of the power equipment and the continuous high efficiency of the industrial and agricultural production, and is of great significance for the supply and use of electricity to solve the power failure dispute. Reliable technical support and high economic value. BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic structural view of an electric energy metering and measuring system provided by the present invention.
  • FIG. 2 is a schematic structural view of a metering terminal in an electric energy metering and measuring system provided by the present invention.
  • 3 is a flow chart of a method for detecting an electric energy meter i t measuring system provided by the present invention. The best way to implement the invention
  • FIG. 1 it is a schematic structural diagram of an electric energy measurement and measurement system provided by the present invention.
  • the metrology measurement system comprises a metrology management system 101, a plurality of metrology management units 102, and a plurality of metrology terminals 103.
  • the metering management system 101 and the metering management unit 102 are connected by a network interface to perform bidirectional data transmission, and the metering management unit 102 and the metering terminal 103 are connected by a bus to perform bidirectional data transmission.
  • the network interface uses an RJ45 interface
  • the bus uses a CAN bus and a 485 bus.
  • the metering management unit 102 includes a circuit-connected control module, a display module, and an interface module.
  • the metering terminal 103 includes a circuit-connected sampling module 1031, an AD sampling module 1033, and a data processing module 1034, and further includes a power module 1035.
  • the sampling module 1031 includes a voltage transformer PT and a current transformer CT.
  • the measurement management system 101 When the measurement is performed, the measurement management system 101 periodically reads the measurement data in the measurement management unit 102 in a polling manner, displays the real-time data, and periodically stores the historical data for later query and analysis.
  • the control module control interface module of the metrology management unit 102 performs information interaction with the metrology management system 101 and the metrology terminal 103, respectively, and controls the display module to display the measured parameter quantities.
  • the sampling module 1031 in the measuring terminal 103 collects the sampling signal of each measuring point in real time, and after filtering by the signal filtering module 1032, the sampling signal passes through the AD sampling module 1033 to obtain a digital signal, and the data processing module 1034 processes the digital signal to obtain active power.
  • the required telemetry data of electrical energy, reactive power, power factor, frequency, etc., and the measured telemetry is transmitted to the metrology management unit 102 via the CAN bus and the 485 bus.
  • FIG. 3 it is a flowchart of a method for detecting an energy metering measurement system provided by the present invention, and the method includes the following steps:
  • Step 1 The measurement management system 101 is started, and the measurement terminal 103 collects the sampling signals of each measurement point in real time.
  • Step 2 The measurement management system 101 opens the network communication interface, and the measurement management unit 102 opens the interface module.
  • Step 3 The metrology management system 101 determines whether the interface is enabled. If it is enabled, it jumps to step 4. If it is not enabled, it waits for the T time and then jumps to step 2.
  • the T can be selected for 5 seconds.
  • Step 4 The metrology management system 101 sends a call test command to the metrology management unit 102, and then waits for the W time, and proceeds to step 5.
  • the W can be selected to be 100 milliseconds.
  • Step 4.1 The measurement management system 101 sends a call test command to the measurement management unit 102.
  • Step 4.3 The metrology management unit 102 transmits the measurement data to the metrology management system 101.
  • Step 5. The measurement management system 101 determines whether the measurement data returned by the measurement management unit 102 is received, and if so, jumps to step 6, and if not, jumps to step 4.
  • Step 6 The metrology management system 101 parses and classifies the received measurement data, and then jumps to step 4 to perform the next round of call detection.
  • the measurement management system 101 performs a data storage for a predetermined number of times of storage.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Description

电能计量测量系统及其检测方法 技术领域
本发明涉及一种电能计量测量系统及其检测方法。 背景技术
随着我国经济的高速发展, 实施高效准确的电能计量管理系统已是当务 之急。 电力行业迫切需要实现电能的实时、 准确的计量系统。 发明的公开
本发明提供的一种电能计量测量系统及其检测方法, 能够对电能进行实 时、 准确的计量。
为了达到上述目的, 本发明提供一种电能计量测量系统, 该电能计量测 量系统包含计量管理系统, 若干计量管理单元, 若干计量终端。 所述的计量 管理系统和计量管理单元通过网络接口连接, 进行双向的数据传输, 所述的 计量管理单元和计量终端通过总线连接, 进行双向的数据传输。
所述的计量管理单元包含电路连接的控制模块、 显示模块和接口模块。 所述的计量终端包含电路连接的采样模块、 AD采样模块和数据处理模 块, 还包含电源模块。
所述的采样模块包含电压互感器和电流互感器。
在进行测量时, 计量管理系统以轮询的方式, 定时读取计量管理单元中 的测量数据, 并显示实时数据, 定时保存历史数据, 方便以后査询和分析。 计量管理单元的控制模块控制接口模块分别与计量管理系统和计量终端进行 信息交互, 并控制显示模块显示测量得到的各参数量。 计量终端中的采样模 块实时采集各测量点的电流电压采样信号, 通过信号滤波模块滤波后, 采样 信号经过 AD采样模块, 得到数字信号, 数据处理模块对采用数字信号进行 处理, 得到有功电度、 无功电度、 功率因数、 频率、 等所需的遥测数据, 并 通过总线, 把测得的遥测量传输给计量管理单元。 确认本 本发明还提供一种电能计量测量系统检测方法, 该检测方法包含以下步 骤:
步骤 1、 计量管理系统启动, 计量终端实时采集各测量点的采样信号。 步骤 2、计量管理系统开启网络通信接口, 计量管理单元开启接口模块。 步骤 3、 计量管理系统判断接口是否开启, 若开启, 则跳转到步骤 4, 若 未开启, 则等待 T时间后, 跳转到步骤 2。
步骤 计量管理系统向计量管理单元发送召测命令,然后等待 W时间, 进入步骤 5。
步骤 4.1、 计量管理系统向计量管理单元发送召测命令;
步骤 4.2、 计量管理单元判断是否收到计量终端发送的测量数据, 若是, 跳转到步骤 4.3, 若否, 继续执行步骤 4.2;
步骤 4.3、 计量管理单元将测量数据发送给计量管理系统。
步骤 5、 计量管理系统判断是否收到了计量管理单元返回的测量数据, 若是, 跳转到步骤 6, 若否, 跳转到步骤 4。
步骤 6、 计量管理系统对接收到的测量数据进行解析和分类显示, 然后 跳转到步骤 4, 进行下一轮召测。
在所述步骤 6中, 计量管理系统每隔规定的存盘时间, 进行一次数据存 储。
本发明对于提高电力系统供电的安全性、 可靠性和经济性, 保证用电设 备的正常工作和工农业生产的持续高效, 对于供、 用电方都具有十分重要的 意义对于解决电力故障纠纷提供了可靠的技术支持, 具有很高的经济价值。 附图的简要说明
图 1是本发明提供的电能计量测量系统的结构示意图。
图 2是本发明提供的电能计量测量系统中的计量终端的结构示意图。 图 3是本发明提供的电能计 i t测量系统检测方法的流程图。 实现本发明的最佳方式
以下根据图 1〜图 3, 具体说明本发明的较佳实施例。
如图 1所示, 是本发明提供的电能计量测量系统的结构示意图, 该电能 计量测量系统包含计量管理系统 101, 若干计量管理单元 102, 若干计量终端 103。所述的计量管理系统 101和计量管理单元 102通过网络接口连接, 进行 双向的数据传输, 所述的计量管理单元 102和计量终端 103通过总线连接, 进行双向的数据传输。
本实施例中, 网络接口采用 RJ45接口, 总线采用 CAN总线和 485总线。 所述的计量管理单元 102包含电路连接的控制模块、 显示模块和接口模 块。
如图 2所示, 所述的计量终端 103包含电路连接的采样模块 1031、 AD 采样模块 1033和数据处理模块 1034, 还包含电源模块 1035。
所述的采样模块 1031包含电压互感器 PT和电流互感器 CT。
在进行测量时, 计量管理系统 101以轮询的方式, 定时读取计量管理单 元 102中的测量数据, 并显示实时数据, 定时保存历史数据, 方便以后査询 和分析。计量管理单元 102的控制模块控制接口模块分别与计量管理系统 101 和计量终端 103进行信息交互, 并控制显示模块显示测量得到的各参数量。 计量终端 103中的采样模块 1031实时采集各测量点的采样信号,通过信号滤 波模块 1032滤波后, 采样信号经过 AD采样模块 1033, 得到数字信号, 数 据处理模块 1034对采用数字信号进行处理, 得到有功电度、 无功电度、 功率 因数、 频率、 等所需的遥测数据, 并通过 CAN总线和 485总线, 把测得的 遥测量传输给计量管理单元 102。
如图 3所示, 是本发明提供的电能计量测量系统检测方法的流程图, 该 检测方法包含以下步骤:
步骤 1、 计量管理系统 101启动, 计量终端 103实时采集各测量点的采 样信号。
步骤 2、 计量管理系统 101开启网络通信接口, 计量管理单元 102开启 接口模块。
步骤 3 计量管理系统 101判断接口是否开启,若开启, 则跳转到步骤 4, 若未开启, 则等待 T时间后, 跳转到步骤 2。
所述的 T可选择 5秒。
步骤 4、 计量管理系统 101向计量管理单元 102发送召测命令, 然后等 待 W时间, 进入步骤 5。 所述的 W可选择 100毫秒。
步骤 4.1、 计量管理系统 101向计量管理单元 102发送召测命令; 步骤 4.2、 计量管理单元 102判断是否收到计量终端 103发送的测量数 据, 若是, 跳转到步骤 4.3, 若否, 继续执行步骤 4.2;
步骤 4.3、 计量管理单元 102将测量数据发送给计量管理系统 101。 步骤 5、 计量管理系统 101判断是否收到了计量管理单元 102返回的测 量数据, 若是, 跳转到步骤 6, 若否, 跳转到步骤 4。
步骤 6、 计量管理系统 101对接收到的测量数据进行解析和分类显示, 然后跳转到步骤 4, 进行下一轮召测。
在所述步骤 6中, 计量管理系统 101每隔规定的存盘时间, 进行一次数 据存储。
尽管本发明的内容已经通过上述优选实施例作了详细介绍, 但应当认识 到上述的描述不应被认为是对本发明的限制。 在本领域技术人员阅读了上述 内容后, 对于本发明的多种修改和替代都将是显而易见的。 因此, 本发明的 保护范围应由所附的权利要求来限定。

Claims

权利要求
1. 一种电能计量测量系统, 其特征在于, 该电能计量测量系统包含计量管理 系统 (101 ), 若干计量管理单元 (102), 若干计量终端 (103 );
所述的计量管理系统 (101 ) 和计量管理单元 (102) 通过网络接口 连接进行双向的数据传输所述的计量管理单元(102)和计量终端(103 ) 通过总线连接, 进行双向的数据传输。
2. 如权利要求 1所述的电能计量测量系统, 其特征在于, 所述的网络接口采 用 RJ45接口, 总线采用 CAN总线和 485总线。
3. 如权利要求 1所述的电能计量测量系统, 其特征在于, 所述的计量管理单 元 (102包含电路连接的控制模块、 显示模块和接口模块。
4. 如权利要求 1 所述的电能计量测量系统, 其特征在于, 所述的计量终端
( 103 )包含电路连接的采样模块(1031 )、 AD采样模块 (1033 )和数据 处理模块 (1034)。
5. 如权利要求 4所述的电能计量测量系统, 其特征在于, 所述的计量终端
( 103还包含电源模块 (1035)。
6. 如权利要求 4所述的电能计量测量系统, 其特征在于, 所述的采样模块
( 1031 ) 包含电压互感器 (PT) 和电流互感器 (CT)。
7. 一种电能计量测量系统检测方法, 其特征在于, 该检测方法包含以下步 骤:
步骤 1、 计量管理系统(101 ) 启动, 计量终端(103 ) 实时采集各测 量点的采样信号;
步骤 2、计量管理系统(101 )开启网络通信接口,计量管理单元(102) 开启接口模块;
步骤 3、 计量管理系统 (101 ) 判断接口是否开启, 若开启, 则跳转 到步骤 4, 若未开启, 则等待 T时间后, 跳转到步骤 2;
步骤 4、计量管理系统(101 )向计量管理单元(102)发送召测命令, 然后等待 W时间, 进入步骤 5;
步骤 5、 计量管理系统 (101 ) 判断是否收到了计量管理单元 (102) 返回的测量数据, 若是, 跳转到步骤 6, 若否, 跳转到步骤 4; 步骤 6、 计量管理系统 (101 ) 对接收到的测量数据进行解析和分类 显示, 然后跳转到步骤 4, 进行下一轮召测。
8. 如权利要求 7所述的电能计量测量系统, 其特征在于, 所述的步骤 4包含 以下步骤:
步骤 4.1、 计量管理系统 (101 ) 向计量管理单元(102 ) 发送召测命 令;
步骤 4.2、 计量管理单元 (102) 判断是否收到计量终端 (103 ) 发送 的测量数据, 若是, 跳转到步骤 4.3, 若否, 继续执行步骤 4.2; .
步骤 4.3、 计量管理单元 (102) 将测量数据发送给计量管理系统 ( 101 )。
9. 如权利要求 7所述的电能计量测量系统, 其特征在于, 在所述步骤 6中, 计量管理系统 (101 ) 每隔规定的存盘时间, 进行一次数据存储。
PCT/CN2011/001647 2010-11-19 2011-09-29 电能计量测量系统及其检测方法 WO2012065354A1 (zh)

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