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发明公开
CN105785306A 一种电压互感器在线群校准方法及装置 有权

一种电压互感器在线群校准方法及装置
摘要：
本发明提供了一种电压互感器在线群校准方法及装置，所述方法包括步骤1：采集电压互感器的输出数据；步骤2：计算电压互感器的误差测量数据；步骤3：修正误差测量数据；步骤4：判定误差测量数据的异常值；所述装置包括A/D转换电路、合并单元和数据处理单元；A/D转换电路与电压互感器连接，数据处理单元的一个输入端通过数据采集单元与合并单元连接，另一个输入端通过同步信号采集单元与同步时钟单元连接；同步时钟单元与合并单元连接；数据采集单元的数目为1。与现有技术相比，本发明提供的一种电压互感器在线群校准方法及装置，实现了在不添加标准器的前提下，在短时间内完成全站互感器误差在线校准的工作。
摘要（英）：

The invention provides a voltage transformer on-line group calibration method and apparatus. The method includes the following steps: 1. acquiring output data of the voltage transformer; 2. computing error measuring data of the voltage transformer; 3. correcting the error measuring data; and 4. determining an abnormal value of the error measuring data. The apparatus includes an A/D converting circuit, a merging unit and a data processing unit. The A/D converting circuit is connected to the voltage transformer. One input end of the data processing unit is connected to the merging unit through a data acquisition unit, and the other input end is connected to a synchronous clock unit through a synchronous signal acquisition unit. The synchronous clock unit is connected to the merging unit. The number of the data acquisition unit is 1. Compared with prior art, the voltage transformer on-line group calibration method and apparatus of the invention realize all station error on-line calibration within a short time provided that no standard is added.

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