改进了一种现有的确定均方根值的异步采样方法

Q3 Engineering

Serbian Journal of Electrical Engineering Pub Date : 2018-01-01 DOI:10.2298/SJEE1801013M

S. Mirkovic, D. Pejic, M. Urekar, B. Vujicic, D. Novakovic

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引用次数: 1

摘要

通过定义测量值似乎是获得最精确结果的最佳解决方案。本文表明，通过改变周期信号均方根(RMS)和平均值的一般定义，可以改善它们的测量。在使用异步采样测量RMS时，观察到结果分散在两个值周围，发现造成这种情况的主要原因是初始采样时间。为了提高异步方法的效率，建议重新定义RMS值。将基于一般定义和提出的RMS值定义的结果进行比较，发现结果的散射明显减小，精度更高。仿真结果表明，对于低分辨率和高分辨率的模数(AD)转换器，采用本文提出的RMS定义可以得到比一般定义更精确的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Improvement of an existing method of asynchronous sampling for determining RMS value

Measuring a value by definition seems to be the best solution for getting the most precise results. In this paper, it is shown that by changing the general definition of root mean square (RMS) and average value of a periodic signal, their measurement can be improved. When measuring RMS with asynchronous sampling, it was observed that results were scattered around two values, and it was found that the main cause for this was initial sampling time. Redefining the RMS value has been proposed in order to increase the efficiency of the asynchronous method. After comparing the results based on general and proposed definition for RMS value, it was observed that there was significantly less scattering of results and higher accuracy. The simulation proved that the application of the proposed definition of RMS gives more accurate and precise results than the general definition for analog to digital (AD) converters with both lower and higher resolution.

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来源期刊

Serbian Journal of Electrical Engineering Energy-Energy Engineering and Power Technology

CiteScore

1.30

自引率

0.00%

发文量

审稿时长

25 weeks

期刊介绍： The main aims of the Journal are to publish peer review papers giving results of the fundamental and applied research in the field of electrical engineering. The Journal covers a wide scope of problems in the following scientific fields: Applied and Theoretical Electromagnetics, Instrumentation and Measurement, Power Engineering, Power Systems, Electrical Machines, Electrical Drives, Electronics, Telecommunications, Computer Engineering, Automatic Control and Systems, Mechatronics, Electrical Materials, Information Technologies, Engineering Mathematics, etc.