Traceability Method of Measuring System for Arbitrary High-Voltage and High-Current Impulses

作者：Ning Yang, Yi Liu, Mingxing Lin, Liuxia Li, Fuchang Lin, Zhaozhi Long, Yinglong Diao, Wenting Li, Jiawei Fan · 发表于：IEEE Sensors Journal · 年份：2025 · DOI：10.1109/jsen.2025.3560930 · 被引用次数：2 · 研究领域：Sensor Technology and Measurement Systems、Electric Power Systems and Control、Engineering Diagnostics and Reliability

High-voltage and high-current impulse waveforms, characterized by a diverse frequency spectrum, pose challenges for accurate traceability to national standards. Traditional methods for tracing impulse quantities to a single-frequency measurement standard are not universally applicable. This paper introduces a novel approach that establishes a general traceability method by mapping the impulse scale factor to a multi-frequency AC scale factor based on the energy spectrum, enabling indirect traceability to the power frequency standard under high-voltage or high-current conditions. A full-waveform inversion method is employed that integrates the frequency spectrum of measured impulse waveforms using fast Fourier transform (FFT) with the frequency response characteristics of the measuring system, which are determined through convolution based on square wave responses. This approach facilitates traceability of time parameters for arbitrary impulse waveforms. Experimental results demonstrate that the resistive impulse voltage divider's scale factor uncertainties at low and high voltages are 3.100×10-4and 1.344×10-3, respectively. Additionally, the uncertainties for the T1and T2parameters of the inverted waveform of the attenuator are within 0.45% and 0.03%, respectively. These findings validate the effectiveness of our traceability theory.