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Design and Implementation of Multi-functional Wide-frequency Measurement Device

1.China Electric Power Research Institute (Nanjing), Nanjing 210003, China;2.National Electric Power Dispatching and Control Center, State Grid Corporation of China, Beijing 100031, China;3.State Grid Jiangsu Electric Power Co., Ltd., Nanjing 210024, China


According to the wide-frequency characteristics of electric variables in the power electronized power grid, this paper designs a multi-functional wide-frequency measurement device. Based on high-speed synchronous sampling, the device is optimized to integrate such functions as wide-frequency oscillation detection, synchrophasor measurement and wide-frequency (inter)harmonics measurement. The algorithm models of transient variables, phasors and effective values are synthetically used to improve the monitoring and detection ability of wide-frequency electric variables with different signal structures. Considering both stable and non-stable conditions, the comprehensive detection of power frequency, non-power frequency components and oscillation power in the range of 0~2 500 Hz is realized, which provides targeted data for the research of generation mechanism, propagation path, analysis and control method of wide-frequency electric variables. The multi-functional wide-frequency measurement device realized in this paper has passed the test and been applied in pilot projects.



This work is supported by State Grid Corporation of China (No. SGLNJZ00YJJS1800187).

Get Citation
[1]WU Yanping, YAO Jianguo, CHANG Naichao, et al. Design and Implementation of Multi-functional Wide-frequency Measurement Device[J]. Automation of Electric Power Systems,2020,44(20):136-141. DOI:10.7500/AEPS20191126004
  • Received:November 26,2019
  • Revised:May 05,2020
  • Adopted:
  • Online: October 16,2020
  • Published: