报告详情
Full-Range Calibration Device for Low-Voltage Current Transformers Based on Power-Frequency Adaptive Noise Reduction
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更新：2025-07-31 15:32:19 浏览：37次
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摘要
With the rapid advancement of China's power system toward intelligence and digitalization, there is an increasing demand for online calibration technologies for low-voltage current transformers (CT) under operating conditions. Traditional laboratory-based calibration methods face significant challenges in large-scale distributed applications, complex on-site interference environments, and periodic verification tasks, such as low efficiency, high cost, and limited access to power outage windows. To address these issues, this paper presents a full-range calibration device for low-voltage CTs based on power-frequency adaptive noise reduction technology. The device integrates high signal-to-noise ratio acquisition, adaptive frequency tracking, and background current suppression, enabling uninterrupted, full-range, and automated online calibration of CTs in diverse field conditions. To evaluate the device’s performance in terms of stability, accuracy, and adaptability under various operating conditions, a comprehensive validation plan was designed in accordance with national metrological technical specifications. The results provide a solid foundation for the engineering application and large-scale deployment of the device in the field of power metering.
关键词
Low-voltage current transformer; online calibration; full-range calibration; power-frequency adaptive noise reduction
报告人
Zhao Qiancheng
Engineer China electric power research institute稿件作者
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重要日期
-
会议日期
11月07日
2025
至11月09日
2025
-
09月10日 2025
初稿截稿日期
主办单位
IEEE西南交通大学IAS学生分会
承办单位
西南交通大学电气工程学院
SPACI车网关系研究室
四川大学电力系统稳定与高压直流输电研究团队
SPACI车网关系研究室
四川大学电力系统稳定与高压直流输电研究团队
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