配电终端测试仪自动校准系统的设计与应用  

Design and application of automatic calibration system for distribution terminal tester

作　　者：沃建栋 张文杰 叶国栋 凌万水 黄亮亮 陈静 Wo Jiandong;Zhang Wenjie;Ye Guodong;Ling Wanshui;Huang Liangliang;Chen Jing(Jinhua Bada Group Co.»Ltd,Jinhua 321000,China;State Grid Zhejiang Yongkang Power Supply Co.,Ltd,Yongkang 321300,China;Wiscom-Sunest Power Technology Co.,Ltd,Shanghai 200030,China)

机构地区：[1]金华八达集团有限公司,金华321000 [2]国网浙江永康市供电有限公司,永康321300 [3]上海金智晟东电力科技有限公司,上海200030

出　　处：《国外电子测量技术》2019年第11期91-96,共6页Foreign Electronic Measurement Technology

基　　金：金华八达集团有限公司科技信息分公司科技项目（BD19ZX215KX11-07）资助

摘　　要：为保证配电终端测试的准确性,配电终端测试仪需具有很高的输出精度。传统的配电终端测试仪主要采用人工校准的方式,存在着工作量大、效率低的缺点,结合采样值校准方法和精度分析仪校准方法设计了一套配电终端测试仪自动校准系统。基于直接数字式频率合成器(DDS)技术设计信号发生器实现模拟量的稳定输出,在配电终端测试仪内部采用采样值校准方法对模拟量输出进行校准,在配电终端测试仪外部采用高精度分析仪实现测试仪的电压/电流输出量校准。整个自动校准系统采用计算机进行控制,并自动完成校准方案配置、数据读取、数据处理、误差分析、校准报告生成等工作。通过对测试数据的分析,自动校准系统具有很高的校准精度与校准可靠性,并大大提升了校准效率。In order to ensure the testing accuracy of distribution terminal,the distribution terminal tester should output precise electrical quantities.Traditional distribution terminal testers adopt artificial calibration methods,with the disadvantages of heavy workload and low efficiency.An automatic calibration system for distribution terminal tester combining the sampling value calibration method and the precision analyzer calibration method was designed.Based on DDS technology,a signal generator was designed to achieve stabilized analog outputs.The analog outputswere calibrated using the sampling value calibration method in the distribution terminal tester,and the voltage/current outputs of the tester were calibrated by a high precision analyzer outside the distribution terminal tester.The computer controlled thewhole automatic calibration system,and automatically completed the calibration scheme configuration,data reading,data processing,error analysis and calibration report generation.Through the analysis of test data,the automatic calibration system was proved with high calibration accuracy and reliability,and greatly improved the calibration efficiency.

关 键 词：配电终端测试仪 自动校准 DDS技术 误差分析 

分 类 号：TH17[机械工程—机械制造及自动化]