| 引用本文: | 董义华,孙同景,徐丙垠.适用于行波传变的电子式互感器信号采集与合并单元的设计与实现[J].电力自动化设备,2013,33(3): |
| DONG Yihua,SUN Tongjing,XU Bingyin.Design and implementation of electronic transformer signal acquisition and merging unit for traveling-wave transfer[J].Electric Power Automation Equipment,2013,33(3): |
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| 摘要: |
| 提出了一种实现宽频带数据传输的电子式电流互感器方案。该设计方案包含了普通信号功能模块和行波信号处理模块，可同时满足数字化变电站间隔层设备的普通信号处理要求和行波测距等设备的暂态行波信号处理要求；在采集端采用分路采集的方式，后续的数据处理利用现场可编程门阵列（FPGA）器件。试验结果表明，运用了所提方案的电子式电流互感器，可正确还原原始信号、采集／处理／传送行波信号，满足行波传输的要求。 |
| 关键词: 电子式互感器 采样 行波信号 频带宽度 现场可编程门阵列 |
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| Design and implementation of electronic transformer signal acquisition and merging unit for traveling-wave transfer |
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DONG Yihua1, SUN Tongjing1, XU Bingyin2,3
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1.School of Control Science and Engineering，Shandong University，Ji’nan 250061，China;2.Shandong University of Technology，Zibo 255049，China;3.Kehui Power Automation Co.，Zibo 255087，China
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| Abstract: |
| A design scheme of electronic current transformer is proposed for broadband data transmission，which includes the common signal functional module and the traveling-wave signal processing module to meet the requirements of digital substation for the common signal processing of bay-level devices and the transient traveling-wave signal processing of traveling-wave fault location devices. The multi-channel data acquisition mode is applied at data collection terminal and the field programmable gate arrays are used for the follow-up data processing. Experimental results show that，the designed electronic current transformer can restore the original signal correctly and collect／process／transfer the traveling-wave signal，which meets the requirements for traveling-wave transmission. |
| Key words: electronic transformer sampling traveling-wave signal bandwidth Ｆield Ｐrogrammable Ｇate Ａrrays（ＦＰＧＡ） |
