21 / 2021-09-24 17:41:07
Measurement Error Analysis of Wide-Frequency and Wide-Range Current Transforme
Current Transformer, Error Analysis, Wide frequency, Wide range;
Draft Accepted
Gang Liu / State Grid Sichuan Electric Power Corporation Metering Canter
Jiefu Zhang / State Grid Sichuan Electric Power Corporation Metering Canter
Bing Ai / State Grid Sichuan Electric Power Corporation Metering Canter
Na He / State Grid Sichuan Electric Power Corporation Metering Canter
Lan Zeng / State Grid Sichuan Electric Power Corporation Metering Canter
Sujie Liu / State Grid Sichuan Electric Power Corporation Metering Canter
With the more and more widespread use of power electronic equipment, there will be more and more current signals with 0.1%~200%In (rated current of 200A) and frequency bandwidth of 0~21th harmonics. In order to ensure accurate current For signal transmission and electric energy measurement, current transformer technology research and device development with a current range of 0.1%~200%In (rated current of 200A) and a frequency width of 0-21 harmonics are required. This paper conducts experimental research and analysis on the measurement error of a self-developed wide-frequency and wide-range current transformer, and analyzes the error under the action of wide-frequency and wide-range current from the two aspects of amplitude error ratio and angle error. The main conclusions are as follows: Under the action of broadband current, the amplitude error ratio and angle error of the current transformer gradually decrease with the increase of frequency; the angle error of the current transformer also gradually decreases with the increase of frequency. Under the action of 0.1% to 200% rated current, the amplitude error ratio of the current transformer is mainly concentrated in -0.02 to -0.03. The angle error of the current transformer only needs to be concentrated in 0.4°-1.2°.

 
Important Date
  • Conference Date

    Jul 11

    2023

    to

    Aug 18

    2023

  • Nov 10 2021

    Draft paper submission deadline

  • Dec 10 2021

    Registration deadline

  • Dec 11 2021

    Contribution Submission Deadline

Sponsored By
IEEE IAS
Organized By
IEEE IAS Student Chapter of Southwest Jiaotong University (SWJTU)
IEEE IAS Student Chapter of Huazhong University of Science and Technology (HUST)
IEEE PELS (Power Electronics Society) Student Chapter of HUST