WO2014063564A1 - Electronic transformer calibrating apparatus based on ieee1588 time synchronization mode - Google Patents

Electronic transformer calibrating apparatus based on ieee1588 time synchronization mode Download PDF

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Publication number
WO2014063564A1
WO2014063564A1 PCT/CN2013/084785 CN2013084785W WO2014063564A1 WO 2014063564 A1 WO2014063564 A1 WO 2014063564A1 CN 2013084785 W CN2013084785 W CN 2013084785W WO 2014063564 A1 WO2014063564 A1 WO 2014063564A1
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WIPO (PCT)
Prior art keywords
ieee1588
clock
data acquisition
output
standard
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PCT/CN2013/084785
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French (fr)
Chinese (zh)
Inventor
邵汉桥
张籍
吴伯华
吴涛
胡浩亮
谢东
王法靖
章述汉
李前
Original Assignee
国家电网公司
国网湖北省电力公司经济技术研究院
中国电力科学研究院
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Application filed by 国家电网公司, 国网湖北省电力公司经济技术研究院, 中国电力科学研究院 filed Critical 国家电网公司
Publication of WO2014063564A1 publication Critical patent/WO2014063564A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays

Definitions

  • the present invention relates to calibration and detection of power devices, and more particularly to an electronic transformer calibration device based on the IEEE 1588 time alignment method.
  • Patent No. CN201010166052.8 "Electronic Transformer Calibration System” indicates: For the electronic transformer calibration system based on data acquisition card, due to the temperature drift and stability of the acquisition card, and cannot be traceable, The use of the verification electronic transformer does not guarantee sufficient accuracy. Although the patent adopts the standard number table method to solve the problem of accuracy, the standard number table is bulky and requires a high working environment, and is not suitable for field use.
  • Patent No. CN200920246771.3 A Current Transformer Calibrator Based on IEC 61850 Standard proposes a current transformer calibrator that can support three synchronous timing modes, but this calibrator During operation, the network controller monitors whether there is a network clock synchronization message specified by the IEEE1588 standard on the network. When the synchronization message is received, the IEEE1588 synchronization pair is further implemented, indicating that the calibrator is in the field verification. The substation needs to have a master clock, and the calibrator can only be used as a slave clock state. There are two problems as follows: 1) Since the substation master clock is generally placed in the control room, and the electronic transformer calibrator is generally placed at the high voltage site, the distance between the two can reach several hundred meters.
  • the object of the present invention is to provide an electronic transformer calibration device based on the IEEE1588 synchronization method, which is equipped with an IEEE1588 clock and an IEEE1588 Ethernet switch, and can be used for electronic currents and electrons using the IEEE1588 synchronization method. The accuracy of the voltage transformer is tested.
  • the IEEE1588 clock of the device can be used as the master clock or the slave clock in the calibration measurement. It can support ETE and PTP. The device is small in size. Meet the site verification requirements.
  • An electronic transformer calibration device based on the IEEE1588 timing method which is composed of an IEEE1588 Ethernet switch, an IEEE1588 clock, a standard voltage-current converter, a standard channel data acquisition unit, a synchronous pulse transmission module, and a channel to be measured.
  • the data acquisition unit, data processing unit and GPS are composed.
  • the output of the IEEE1588 Ethernet switch is connected to the IEEE1588 clock and the input of the data acquisition unit of the channel under test.
  • the other input of the IEEE1588 clock is connected to the output of the GPS.
  • the IEEE1588 clock output is connected to the input of the synchronous pulse transmission module.
  • the output of the transmitting module and the output of the standard current-to-voltage converter are respectively connected to the input end of the standard channel data acquisition unit, and the output of the standard channel data acquisition unit and the output of the data acquisition unit of the measured channel are connected to the data processing unit.
  • the standard channel data acquisition unit uses the high-precision data acquisition card PCI5922.
  • the acquisition card is equipped with a high-stability and high-accuracy voltage standard and temperature sensor.
  • the PCI5922 can be self-calibrated. DC offset and nonlinearity of the /D acquisition circuit.
  • the electronic transformer calibration device is guaranteed to maintain high accuracy over a wide range of outdoor temperature variations.
  • the high-precision data acquisition card PCI5922 produced by National Instruments Co., Ltd. has a voltage reference and self-calibration function, which can eliminate the error caused by temperature change.
  • the acquisition card system is compact and suitable for field use.
  • Equipped with IEEE1588 clock it can be used as master clock or slave clock; clock with second pulse output function, when the synchronization is successful (clock error does not exceed lus) seconds pulse will be output.
  • Equipped with an IEEE1588 switch it can support ETE and PTP.
  • the effect of different timing methods on the error of the electronic transformer can be examined.
  • FIG. 1 is a schematic structural diagram of an electronic transformer calibration device based on an IEEE 1588 time alignment method.
  • 1 is an IEEE1588 Ethernet switch
  • 2 is an IEEE1588 clock
  • 3 is a standard voltage-current converter
  • 4 is a standard channel data acquisition unit
  • 5 is a synchronous pulse transmission module
  • 6 is a measured channel data acquisition unit
  • ⁇ For the data processing unit, 8 is GPS.
  • FIG. 2 is a schematic view showing an operation state of the digital output type electronic current transformer according to the present invention.
  • 9 is an electronic transformer calibration device based on the IEEE1588 timing method
  • 10 is a voltage regulator
  • 11 is a current riser
  • 12 is a digital output electronic current transformer
  • 13 is a second Converter
  • 14 is the merging unit
  • 15 is the standard current transformer.
  • An electronic transformer calibration device based on the IEEE1588 timing method is composed of an IEEE1588 Ethernet switch 1, an IEEE1588 clock 2, a standard voltage-current converter 3, and a standard channel data acquisition unit. 4.
  • the synchronous pulse transmitting module 5, the measured channel data collecting unit 6, the data processing unit 7, and the GPS 8 are composed.
  • the output of the IEEE1588 Ethernet switch 1 is connected to the IEEE1588 clock 2 and the input of the measured channel data acquisition unit 6, respectively.
  • the other input of the IEEE1588 clock 2 is connected to the output of the GPS 8, and the IEEE1588 clock 2 output and the synchronous pulse transmission module.
  • the invention and the digital output electronic current transformer are first connected according to FIG. 2, as shown in FIG. 2, that is, the current signal is measured by the voltage regulator. 10 and the current booster 11 are provided, and the digital output electronic current transformer 12 and the standard current transformer 15 are connected in series through a primary circuit.
  • the digital signal output end of the digital output electronic current transformer 12 is connected to the receiving end of the secondary converter 13, the output end of the secondary converter 13 is connected to the data collecting port of the merging unit 14, and the merging unit 14 data collecting port and the electronic
  • the input terminal of the IEEE1588 Ethernet switch 1 in the transformer calibration system 9 is connected, and the secondary output of the standard current transformer 15 is connected to the standard voltage current transformer 3 in the electronic transformer calibration system 9.
  • the timing operation mode and the operation mode are set. There are four ways to set up:
  • the working mode of the time is: the merging unit 14 as the master clock, the IEEE1588 clock 2 as the slave clock; the working mode: the merging unit 14 is the ETE timing mode, the IEEE1588 clock is set to the ETE mode; the merging unit 14 to the IEEE1588 clock is implemented. Delay measurement.
  • the working mode of time is: the merging unit 14 as the slave clock, IEEE1588 clock 2 as the master clock; working mode: the merging unit 14 is the ETE time mode, the IEEE1588 clock is set to the ETE mode; the merging unit 14 is implemented to the IEEE1588 The measurement of the entire path delay of the clock.
  • the working mode of time is: the merging unit 14 as the master clock, the IEEE1588 clock 2 as the slave clock; the working mode: the merging unit 14 is the PTP pairing mode, the IEEE1588 clock is set to the PTP mode; the merging unit 14 is implemented to the IEEE1588 Delay between Ethernet Switch 1 and delay measurement between IEEE1588 Ethernet Switch 1 to IEEE1588 clock.
  • the working mode of time is: the merging unit 14 as a slave clock, IEEE1588 clock 2 as the master clock; Mode: The merging unit 14 is in the PTP timing mode, and the IEEE1588 clock is set to the PTP mode; the delay between the merging unit 14 and the IEEE 1588 Ethernet switch 1 and the delay delay between the IEEE 1588 Ethernet switch 1 and the IEEE 1588 clock are implemented. measuring.
  • the digital output electronic current transformer 12 and the standard current transformer 15 are supplied with current by the voltage regulator 10 and the current booster 11, and the digital output electronic current transformer 12 transmits the collected digital current of the measured current to the second
  • the secondary converter 13 and the secondary converter 13 send the conditioned signal to the merging unit 14, and the merging unit 14 converts the signal into an electronic transformer calibration system 9 in accordance with the IEC 61850 protocol, and the merging unit 14 and the electronic mutual sensation
  • the device verification system implements the timing by mutually transmitting 1588 protocol packets.
  • the time of the merging unit 14 is taken as the standard time; when the IEEE1588 clock 2 is used as the master clock, the time received from the GPS 8 by the IEEE1588 clock 2 is taken as the standard time; when the error between the master and slave clocks Less than lus, when successful, the IEEE1588 clock 2 outputs a second pulse after successful timing; the synchronous pulse transmitting module 5 triggers the standard channel data acquisition unit 4 to receive the synchronization pulse, and the standard channel data acquisition unit 4 converts the standard converter 3 output signal is sampled, and the data is sent to the data processing error calculation display unit 7; at the same time, the measured channel digital input data acquisition unit 6 parses the sample message sent by the merging unit and sends it to the data processing error calculation display unit 7 The data processing error calculation display unit 7 calculates the angular difference and the ratio difference of the electronic transformer under test by the phase difference correction FFT algorithm.
  • the standard current transformer 15 converts the standard signal and sends it to the standard voltage and current transformer in the electronic transformer

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)

Abstract

Disclosed is an electronic transformer calibrating apparatus based on an IEEE1588 synchronous mode, which relates to the calibration and detection of electric power equipment. The apparatus consists of an IEEE1588 Ethernet switch (1), an IEEE1588 clock (2), a standard voltage-to-current converter (3), a standard channel data acquisition unit (4), a synchronous pulse sending module (5), a measured channel data acquisition unit (6), a data processing unit (7) and a GPS (8). In a calibration measurement, the IEEE1588 clock (2) of the apparatus can act as a master clock and can also act as a slave clock, and can support two time synchronization modes ETE and PTP. The apparatus is small in volume, and satisfies the demand for field calibration.

Description

说 明 书  Description
一种基于 IEEE1588对时方式的电子式互感器校验装置  Electronic transformer calibration device based on IEEE1588 timing method
¾b ^领域 3⁄4b ^ field
[0001] 本发明涉及电力设备的校准与检测， 更具体涉及基于 IEEE1588对时方式的电子式互 感器校验装置。  [0001] The present invention relates to calibration and detection of power devices, and more particularly to an electronic transformer calibration device based on the IEEE 1588 time alignment method.
背景技术 Background technique
[0002] 目前电子式互感器已在电力系统中广泛使用， 其工作性能必须通过校验确定， 电子 式互感器校验设备也有很多。 如专利号为 CN201020187805.9的 "电子式通用互感器校验 仪"提出了一种既可以校验模拟式电子式互感器又可以校验数字式电子式互感器的校验设 备， 此校验仪只能对 GPS及 B码同步方式的电子式互感器进行校准试验， 对 IEEE1588同 步方式的电子式互感器就无法进行校准。  [0002] At present, electronic transformers have been widely used in power systems, and their performance must be determined by calibration. There are also many electronic transformer calibration devices. For example, the "Electronic Universal Transformer Calibrator" with the patent number CN201020187805.9 proposes a calibration device that can both verify the analog electronic transformer and verify the digital electronic transformer. The instrument can only perform calibration tests on the GPS and B code synchronous electronic transformers, and the IEEE1588 synchronous electronic transformer cannot be calibrated.
[0003] 专利号为 CN201010166052.8的 "电子式互感器校验系统"指出： 对基于数据采集卡 的电子式互感器校验系统， 由于采集卡存在温漂和稳定性问题， 且无法溯源， 用其校验电子 式互感器不能保证足够的精度。 该专利采用标准数表的方法虽然解决了精度的问题， 但是由 于标准数表体积庞大， 对工作环境要求较高， 不适合现场使用。  [0003] Patent No. CN201010166052.8 "Electronic Transformer Calibration System" indicates: For the electronic transformer calibration system based on data acquisition card, due to the temperature drift and stability of the acquisition card, and cannot be traceable, The use of the verification electronic transformer does not guarantee sufficient accuracy. Although the patent adopts the standard number table method to solve the problem of accuracy, the standard number table is bulky and requires a high working environment, and is not suitable for field use.
[0004] 专利号为 CN200920246771.3的 "一种基于 IEC 61850标准的电流互感器校验仪"提 出了一种可以支持三种同步对时方式的电流互感器校验仪， 但是此校验仪在工作时通过网络 控制器监听网络上是否有 IEEE1588标准所规定的网络时钟同步报文， 当接收到同步报文后 再进一步实现 IEEE1588同步对时， 说明是此校验仪在现场校验时， 需要变电站有主时钟， 校验仪只能作为从时钟状态。 这存在如下两个问题： 1 ) 由于变电站主时钟一般会放在控制 室， 而电子式互感器校验仪一般放在高压现场， 两者距离可以达到几百米。 从主时钟引一根 光纤到电子式互感器校验仪非常不方便。 2) 电子式互感器误差校验一般在整个变电站调试 过程中进行， 此时主时钟可能尚未调试好， 无法提供 IEEE1588对时信号。 因此， 该专利现 场使用具有局限性。  [0004] Patent No. CN200920246771.3 "A Current Transformer Calibrator Based on IEC 61850 Standard" proposes a current transformer calibrator that can support three synchronous timing modes, but this calibrator During operation, the network controller monitors whether there is a network clock synchronization message specified by the IEEE1588 standard on the network. When the synchronization message is received, the IEEE1588 synchronization pair is further implemented, indicating that the calibrator is in the field verification. The substation needs to have a master clock, and the calibrator can only be used as a slave clock state. There are two problems as follows: 1) Since the substation master clock is generally placed in the control room, and the electronic transformer calibrator is generally placed at the high voltage site, the distance between the two can reach several hundred meters. It is inconvenient to introduce an optical fiber from the main clock to an electronic transformer calibrator. 2) Electronic transformer error verification is generally performed during the entire substation debugging process. At this time, the main clock may not be debugged yet, and the IEEE1588 timing signal cannot be provided. Therefore, the use of this patent on the spot has limitations.
发明内容 Summary of the invention
[0005] 本发明解决的目的是： 提供一种基于 IEEE1588同步方式的电子式互感器校验装置， 该装置配备了 IEEE1588时钟和 IEEE1588以太网交换机， 可对采用 IEEE1588同步方式的电 子式电流和电子式电压互感器的准确度进行校准试验， 该装置的 IEEE1588时钟在校准测量 时， 既可以作为主时钟， 也可以作为从时钟， 并可以支持 ETE和 PTP两种对时方式； 本装 置体积小， 满足现场校验需求。 [0006] 一种基于 IEEE1588对时方式的电子式互感器校验装置， 该装置由 IEEE1588以太网 交换机、 IEEE1588时钟、 标准电压电流转换器、 标准通道数据采集单元、 同步脉冲发送模 块、 被测通道数据采集单元、 数据处理单元和 GPS 组成。 IEEE1588以太网交换机输出端分 别与 IEEE1588时钟和被测通道数据采集单元输入端连接， IEEE1588时钟 的另一输入端与 GPS的输出端连接， IEEE1588时钟输出端与同步脉冲发送模块输入端连接， 同步脉冲发送 模块输出端和标准电流电压转换器输出端分别与标准通道数据采集单元输入端连接， 标准通 道数据采集单元输出端和被测通道数据采集单元输出端均与数据处理单元连接。 [0005] The object of the present invention is to provide an electronic transformer calibration device based on the IEEE1588 synchronization method, which is equipped with an IEEE1588 clock and an IEEE1588 Ethernet switch, and can be used for electronic currents and electrons using the IEEE1588 synchronization method. The accuracy of the voltage transformer is tested. The IEEE1588 clock of the device can be used as the master clock or the slave clock in the calibration measurement. It can support ETE and PTP. The device is small in size. Meet the site verification requirements. [0006] An electronic transformer calibration device based on the IEEE1588 timing method, which is composed of an IEEE1588 Ethernet switch, an IEEE1588 clock, a standard voltage-current converter, a standard channel data acquisition unit, a synchronous pulse transmission module, and a channel to be measured. The data acquisition unit, data processing unit and GPS are composed. The output of the IEEE1588 Ethernet switch is connected to the IEEE1588 clock and the input of the data acquisition unit of the channel under test. The other input of the IEEE1588 clock is connected to the output of the GPS. The IEEE1588 clock output is connected to the input of the synchronous pulse transmission module. The output of the transmitting module and the output of the standard current-to-voltage converter are respectively connected to the input end of the standard channel data acquisition unit, and the output of the standard channel data acquisition unit and the output of the data acquisition unit of the measured channel are connected to the data processing unit.
[0007] 标准通道数据采集单元采用高精度数据采集卡 PCI5922,该采集卡装有高稳定高准确 度的电压标准和温度传感器， 当外部温度变化超过 5摄氏度时， PCI5922可以进行自校准， 修正 A/D采集电路的直流偏置和非线性。 保证电子式互感器校验装置在户外宽范围的温度 变化条件下保持高准确度。 [0007] The standard channel data acquisition unit uses the high-precision data acquisition card PCI5922. The acquisition card is equipped with a high-stability and high-accuracy voltage standard and temperature sensor. When the external temperature changes by more than 5 degrees Celsius, the PCI5922 can be self-calibrated. DC offset and nonlinearity of the /D acquisition circuit. The electronic transformer calibration device is guaranteed to maintain high accuracy over a wide range of outdoor temperature variations.
[0008] 本发明的与现有技术相比的优点是： [0008] Advantages of the present invention over the prior art are:
( 1 ) 采用美国国家仪器有限公司生产的高精度数据采集卡 PCI5922 , 内有电压基准， 具有 自校准功能， 能够消除由温度变化带来的误差； 并且采集卡系统体积小巧， 适合现场使用。  (1) The high-precision data acquisition card PCI5922 produced by National Instruments Co., Ltd. has a voltage reference and self-calibration function, which can eliminate the error caused by temperature change. The acquisition card system is compact and suitable for field use.
[0009] ( 2 ) 配备了 IEEE1588时钟， 既可以作为主时钟， 也可以作为从时钟； 时钟带秒脉 冲输出功能， 当同步成功时 （时钟误差不超过 lus) 秒脉冲才会输出。 [0009] (2) Equipped with IEEE1588 clock, it can be used as master clock or slave clock; clock with second pulse output function, when the synchronization is successful (clock error does not exceed lus) seconds pulse will be output.
[0010] ( 3 ) 配备了 IEEE1588交换机， 当被测合并单元 IEEE1588数据帧和 IEC61850数据 帧共用一个网口时， 可以对其进行拓展， 一路用做同步， 一路用做 IEC61850数据采样。  [0010] (3) Equipped with an IEEE1588 switch, when the tested merging unit IEEE1588 data frame and IEC61850 data frame share a network port, it can be extended, used for synchronization all the way, and used for IEC61850 data sampling.
[0011] (4 ) 配备了 IEEE1588交换机， 可以支持 ETE和 PTP两种对时方式。 可以考察不同 的对时方式对电子式互感器误差的影响。 [0011] (4) Equipped with an IEEE1588 switch, it can support ETE and PTP. The effect of different timing methods on the error of the electronic transformer can be examined.
附图说明 DRAWINGS
[0012] 图 1为一种基于 IEEE1588对时方式的电子式互感器校验装置的结构示意图。  1 is a schematic structural diagram of an electronic transformer calibration device based on an IEEE 1588 time alignment method.
[0013] 其中： 1为 IEEE1588以太网交换机、 2 为 IEEE1588时钟， 3为标准电压电流转换 器， 4 为标准通道数据采集单元， 5为同步脉冲发送模块， 6为被测通道数据采集单元， Ί 为数据处理单元， 8为 GPS。  [0013] wherein: 1 is an IEEE1588 Ethernet switch, 2 is an IEEE1588 clock, 3 is a standard voltage-current converter, 4 is a standard channel data acquisition unit, 5 is a synchronous pulse transmission module, and 6 is a measured channel data acquisition unit, Ί For the data processing unit, 8 is GPS.
[0014] 图 2是本发明校验数字输出式电子式电流互感器时的工作状态示意图。  2 is a schematic view showing an operation state of the digital output type electronic current transformer according to the present invention.
[0015] 其中： 9为一种基于 IEEE1588对时方式的电子式互感器校验装置， 10为调压器， 11 为升流器， 12为数字输出式电子式电流互感器， 13为二次转换器， 14为合并单元， 15为标 准电流互感器。  [0015] wherein: 9 is an electronic transformer calibration device based on the IEEE1588 timing method, 10 is a voltage regulator, 11 is a current riser, 12 is a digital output electronic current transformer, 13 is a second Converter, 14 is the merging unit, 15 is the standard current transformer.
具体实施方式 [0016] 以下结合附图对本发明作进一步的说明。 detailed description [0016] The present invention will be further described below in conjunction with the accompanying drawings.
[0017] 一种基于 IEEE1588对时方式的电子式互感器校验装置， 如图 1所示， 该装置由 IEEE1588以太网交换机 1、 IEEE1588时钟 2、 标准电压电流转换器 3、 标准通道数据采集单 元 4、 同步脉冲发送模块 5、 被测通道数据采集单元 6、 数据处理单元 7和 GPS 8组成。 IEEE1588以太网交换机 1输出端分别与 IEEE1588时钟 2和被测通道数据采集单元 6输入端 连接， IEEE1588时钟 2 的另一输入端与 GPS 8的输出端连接， IEEE1588时钟 2输出端与 同步脉冲发送模块 5输入端连接， 同步脉冲发送模块 5输出端和标准电流电压转换器 3输出 端分别与标准通道数据采集单元 4输入端连接， 标准通道数据采集单元 4输出端和被测通道 数据采集单元 6输出端均与数据处理单元 Ί连接。  [0017] An electronic transformer calibration device based on the IEEE1588 timing method, as shown in FIG. 1, the device is composed of an IEEE1588 Ethernet switch 1, an IEEE1588 clock 2, a standard voltage-current converter 3, and a standard channel data acquisition unit. 4. The synchronous pulse transmitting module 5, the measured channel data collecting unit 6, the data processing unit 7, and the GPS 8 are composed. The output of the IEEE1588 Ethernet switch 1 is connected to the IEEE1588 clock 2 and the input of the measured channel data acquisition unit 6, respectively. The other input of the IEEE1588 clock 2 is connected to the output of the GPS 8, and the IEEE1588 clock 2 output and the synchronous pulse transmission module. 5 input terminal connection, the output of the synchronous pulse transmitting module 5 and the output of the standard current-voltage converter 3 are respectively connected with the input end of the standard channel data collecting unit 4, the output of the standard channel data collecting unit 4 and the output of the measured channel data collecting unit 6 Both ends are connected to the data processing unit.
[0018] 用本发明校验数字输出式电子式电流互感器的工作流程和原理： [0018] The workflow and principle of the digital output electronic current transformer are verified by the invention:
用本发明校验数字输出式电子式电流互感器时， 先将本发明及数字输出式电子式电流互感器 按图 2方式连接， 如图 2所示， 即被测一次电流信号由调压器 10和升流器 11提供， 数字输 出式电子式电流互感器 12和标准电流互感器 15通过一次回路串联。 数字输出式电子式电流 互感器 12的数字信号输出端与二次转换器 13的接收端连接， 二次转换器 13的输出端与合 并单元 14数据采集端口连接， 合并单元 14数据采集端口与电子式互感器校验系统 9中的 IEEE1588以太网交换机 1输入端连接， 标准电流互感器 15二次输出端与电子式互感器校验 系统 9中的标准电压电流互感器 3连接。 When the digital output electronic current transformer is verified by the invention, the invention and the digital output electronic current transformer are first connected according to FIG. 2, as shown in FIG. 2, that is, the current signal is measured by the voltage regulator. 10 and the current booster 11 are provided, and the digital output electronic current transformer 12 and the standard current transformer 15 are connected in series through a primary circuit. The digital signal output end of the digital output electronic current transformer 12 is connected to the receiving end of the secondary converter 13, the output end of the secondary converter 13 is connected to the data collecting port of the merging unit 14, and the merging unit 14 data collecting port and the electronic The input terminal of the IEEE1588 Ethernet switch 1 in the transformer calibration system 9 is connected, and the secondary output of the standard current transformer 15 is connected to the standard voltage current transformer 3 in the electronic transformer calibration system 9.
[0019] 将本发明与数字输出式电子式电流互感器按上述方式连接后， 再设置对时工作方式 和工作模式。 设置方法有以下 4种：  [0019] After the present invention is connected to the digital output electronic current transformer in the above manner, the timing operation mode and the operation mode are set. There are four ways to set up:
a、 对时工作方式为： 合并单元 14作为主时钟， IEEE1588时钟 2作为从时钟； 工作模式： 合并单元 14为 ETE对时方式， IEEE1588时钟设置为 ETE模式； 实现合并单元 14到 IEEE1588时钟整个路径延时的测量。 a, the working mode of the time is: the merging unit 14 as the master clock, the IEEE1588 clock 2 as the slave clock; the working mode: the merging unit 14 is the ETE timing mode, the IEEE1588 clock is set to the ETE mode; the merging unit 14 to the IEEE1588 clock is implemented. Delay measurement.
[0020】 b、 对时工作方式为： 合并单元 14作为从时钟， IEEE1588时钟 2作为主时钟； 工作 模式： 合并单元 14为 ETE对时方式， IEEE1588时钟设置为 ETE模式； 实现合并单元 14 到 IEEE1588时钟整个路径延时的测量。  [0020] b, the working mode of time is: the merging unit 14 as the slave clock, IEEE1588 clock 2 as the master clock; working mode: the merging unit 14 is the ETE time mode, the IEEE1588 clock is set to the ETE mode; the merging unit 14 is implemented to the IEEE1588 The measurement of the entire path delay of the clock.
[0021】 c、 对时工作方式为： 合并单元 14作为主时钟， IEEE1588时钟 2作为从时钟； 工作 模式： 合并单元 14为 PTP对时方式， IEEE1588时钟设置为 PTP模式； 实现合并单元 14 到 IEEE1588以太网交换机 1之间的延时及 IEEE1588以太网交换机 1到 IEEE1588时钟之间 的延时测量。  [0021] c, the working mode of time is: the merging unit 14 as the master clock, the IEEE1588 clock 2 as the slave clock; the working mode: the merging unit 14 is the PTP pairing mode, the IEEE1588 clock is set to the PTP mode; the merging unit 14 is implemented to the IEEE1588 Delay between Ethernet Switch 1 and delay measurement between IEEE1588 Ethernet Switch 1 to IEEE1588 clock.
[0022】 c、 对时工作方式为： 合并单元 14作为从时钟， IEEE1588时钟 2作为主时钟； 工作 模式： 合并单元 14为 PTP对时方式， IEEE1588时钟设置为 PTP模式； 实现合并单元 14 到 IEEE1588以太网交换机 1之间的延时及 IEEE1588以太网交换机 1到 IEEE1588时钟之间 的延时延时的测量。 [0022] c, the working mode of time is: the merging unit 14 as a slave clock, IEEE1588 clock 2 as the master clock; Mode: The merging unit 14 is in the PTP timing mode, and the IEEE1588 clock is set to the PTP mode; the delay between the merging unit 14 and the IEEE 1588 Ethernet switch 1 and the delay delay between the IEEE 1588 Ethernet switch 1 and the IEEE 1588 clock are implemented. measuring.
[0023] 对时工作方式和工作模式设置好后， 按照以下工作流程校验数字输出式电子式电流 互感器 12:  [0023] After setting the working mode and the working mode, the digital output electronic current transformer is verified according to the following workflow:
由调压器 10和升流器 11给数字输出式电子式电流互感器 12和标准电流互感器 15提供 电流， 数字输出式电子式电流互感器 12将采集到的被测电流数字信号传递给二次转换器 13 , 二次转换器 13将调理后的信号发送给合并单元 14， 合并单元 14将信号转换成符合 IEC61850协议发送给电子式互感器校验系统 9， 并且合并单元 14与电子式互感器校验系统 之间通过互发 1588协议报文， 实现对时。 当合并单元 14作为主时钟时， 以合并单元 14的 时间作为标准时间； 当 IEEE1588时钟 2作为主时钟时， 以 IEEE1588时钟 2从 GPS 8接收 到的时间作为标准时间； 当主从时钟之间的误差小于 lus，时， 对时成功， 对时成功后 IEEE1588时钟 2输出秒脉冲； 同步脉冲发送模块 5接收到同步脉冲后触发标准通道数据采 集单元 4进行采样， 标准通道数据采集单元 4将标准转换器 3输出的信号进行采样， 并将数 据发送给数据处理误差计算显示单元 7; 同时被测通道数字输入数据采集单元 6将合并单元 发送的采样报文进行解析后发送至数据处理误差计算显示单元 7; 数据处理误差计算显示单 元 7通过相位差修正 FFT算法计算得出被测电子式互感器的角差和比差。 标准电流互感器 15将标准信号转换后发送给电子式互感器校验系统 9中的标准电压电流互感器。 电子式互 感器校验系统 9测量和计算被测电流与标准信号完成电子式电流互感器校验， 得出被校电子 式互感器的误差。  The digital output electronic current transformer 12 and the standard current transformer 15 are supplied with current by the voltage regulator 10 and the current booster 11, and the digital output electronic current transformer 12 transmits the collected digital current of the measured current to the second The secondary converter 13 and the secondary converter 13 send the conditioned signal to the merging unit 14, and the merging unit 14 converts the signal into an electronic transformer calibration system 9 in accordance with the IEC 61850 protocol, and the merging unit 14 and the electronic mutual sensation The device verification system implements the timing by mutually transmitting 1588 protocol packets. When the merging unit 14 is used as the master clock, the time of the merging unit 14 is taken as the standard time; when the IEEE1588 clock 2 is used as the master clock, the time received from the GPS 8 by the IEEE1588 clock 2 is taken as the standard time; when the error between the master and slave clocks Less than lus, when successful, the IEEE1588 clock 2 outputs a second pulse after successful timing; the synchronous pulse transmitting module 5 triggers the standard channel data acquisition unit 4 to receive the synchronization pulse, and the standard channel data acquisition unit 4 converts the standard converter 3 output signal is sampled, and the data is sent to the data processing error calculation display unit 7; at the same time, the measured channel digital input data acquisition unit 6 parses the sample message sent by the merging unit and sends it to the data processing error calculation display unit 7 The data processing error calculation display unit 7 calculates the angular difference and the ratio difference of the electronic transformer under test by the phase difference correction FFT algorithm. The standard current transformer 15 converts the standard signal and sends it to the standard voltage and current transformer in the electronic transformer calibration system 9. Electronic Transformer Calibration System 9 Measure and calculate the measured current and the standard signal to complete the electronic current transformer calibration, and obtain the error of the electronic transformer.

Claims

权 利 要 求 书 Claim
1. 一种基于 IEEE1588对时方式的电子式互感器校验装置， 其特征在于， 该装置由 IEEE1588以太网交换机 （1)、 IEEE1588时钟 （2)、 标准电压电流转换器 （3)、 标准通道数 据采集单元 （4)、 同步脉冲发送模块 （5)、 被测通道数据采集单元 （6)、 数据处理单元 1. An electronic transformer calibration device based on the IEEE1588 time-of-day mode, characterized in that the device is composed of an IEEE1588 Ethernet switch (1), an IEEE1588 clock (2), a standard voltage-current converter (3), and a standard channel. Data acquisition unit (4), synchronous pulse transmission module (5), measured channel data acquisition unit (6), data processing unit
(7) 禾 BGPS (8) 组成； IEEE1588以太网交换机 （1) 输出端分别与 IEEE1588时钟 （2) 和被测通道数据采集单元 （6) 输入端连接， IEEE1588时钟 （2) 的另一输入端与 GPS(7) WoBGPS (8) composition; IEEE1588 Ethernet switch (1) output is connected to the IEEE1588 clock (2) and the measured channel data acquisition unit (6) input, and the other input of the IEEE1588 clock (2) With GPS
(8) 的输出端连接， IEEE1588时钟 （2) 输出端与同步脉冲发送模块 （5) 输入端连接， 同 步脉冲发送模块 （5) 输出端和标准电流电压转换器 （3) 输出端分别与标准通道数据采集单 元 （4) 输入端连接， 标准通道数据采集单元 （4) 输出端和被测通道数据采集单元 （6) 输 出端均与数据处理单元 （7) 连接。 The output of (8) is connected, the IEEE1588 clock (2) output is connected to the synchronous pulse transmitting module (5) input, the synchronous pulse transmitting module (5) output and the standard current-to-voltage converter (3) output are respectively standard Channel data acquisition unit (4) input connection, standard channel data acquisition unit (4) output and measured channel data acquisition unit (6) output are connected to the data processing unit (7).
2. 根据权利要求 1所述的一种基于 IEEE1588对时方式的电子式互感器校验装置， 其特征在 于， 所述的标准通道数据采集单元采用高精度数据采集卡 PCI5922。  2. The electronic transformer calibration device based on the IEEE 1588 time-aligning method according to claim 1, wherein the standard channel data acquisition unit uses a high-precision data acquisition card PCI5922.
PCT/CN2013/084785 2012-10-26 2013-09-30 Electronic transformer calibrating apparatus based on ieee1588 time synchronization mode WO2014063564A1 (en)

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