通过数字处理罗高斯基线圈信号测量交流电流

IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276) Pub Date : 2002-08-07 DOI:10.1109/IMTC.2002.1006926

G. D'Antona, E. Carminati, M. Lazzaroni, R. Ottoboni, C. Svelto

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引用次数: 18

摘要

与分流器和电流互感器测量系统相比，Rogowski线圈的主要优点是高度的电绝缘和低成本。它的典型应用是在高振幅和/或高频电流领域。线圈末端导体感应的电动势的积分通常由模拟积分器获得。我们提出了一种基于简单数字信号处理的原始集成过程，允许在集成过程中具有更好的精度和更高的输出信号稳定性。此外，数字集成的使用将Rogowski线圈的使用范围扩展到低幅度和低频电流测量。

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AC current measurements via digital processing of Rogowski coils signal

The main advantages of Rogowski coils are the high degree of galvanic insulation and low cost compared to shunts and current transformer measuring systems. Its typical application is in the field of high-amplitude and/or high frequency currents. The integration of the EMF induced at the end conductors of the coil is classically obtained by an analog integrator. We propose an original integration process, based on a simple digital signal processing, allowing for better accuracy in the integration procedure and higher stability of the output signal. In addition, the use of digital integration extends the use of Rogowski coils also to low-amplitude and low-frequency current measurements.

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IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276)

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