A novel process control method for remote calibration based on improved multiscale permutation entropy and dynamic Hotelling's T^2 control chart.

IF 2.7 3区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY Measurement Science and Technology Pub Date : 2023-12-17 DOI:10.1088/1361-6501/ad166e

Quan Wang, Min Lei, Jun Zhang, Huan Wang, Xin Qi

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Abstract

Remote calibration (RC) is a new promising technology for electric power instrument calibration. However, due to the inevitable impact of external environmental changes and internal insulation aging during the transportation, installation, and measurement processes involved in RC, the metrological performance of relevant instruments may deteriorate. Therefore, quality control of electric power instruments during RC is of great significance. In this paper, a novel process control method for RC is proposed. First, from the physical characteristic perspective, an improved multiscale permutation entropy (IMPE) algorithm is designed to detect the complexity change point of the instrument system. Second, from the statistical characteristic perspective, a dynamic multivariable Hotelling's T 2 control chart (DMHTCC) is developed to detect the outliers within a time series measurement signal. Finally, a fusion scheme of IMPE and DMHTCC is presented to promote the validity and reliability of process control. The effectiveness of the proposed approach and its superiority over some traditional process control techniques is demonstrated through both simulative and experimental case studies.

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基于改进的多尺度置换熵和动态 Hotelling's T^2 控制图的新型远程校准过程控制方法。

远程校准（RC）是一项很有前途的电力仪器校准新技术。然而，由于远程校准在运输、安装和测量过程中不可避免地受到外部环境变化和内部绝缘老化的影响，相关仪器的计量性能可能会下降。因此，在遥控过程中对电力仪器进行质量控制意义重大。本文提出了一种新型的 RC 过程控制方法。首先，从物理特性角度出发，设计了一种改进的多尺度置换熵（IMPE）算法来检测仪表系统的复杂性变化点。其次，从统计特性的角度出发，开发了动态多变量霍特林 T 2 控制图（DMHTCC）来检测时间序列测量信号中的异常值。最后，提出了 IMPE 和 DMHTCC 的融合方案，以提高过程控制的有效性和可靠性。通过模拟和实验案例研究，证明了所提方法的有效性及其优于一些传统过程控制技术的优势。

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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来源期刊

Measurement Science and Technology 工程技术-工程：综合

CiteScore

4.30

自引率

16.70%

发文量

656

审稿时长

4.9 months

期刊介绍： Measurement Science and Technology publishes articles on new measurement techniques and associated instrumentation. Papers that describe experiments must represent an advance in measurement science or measurement technique rather than the application of established experimental technique. Bearing in mind the multidisciplinary nature of the journal, authors must provide an introduction to their work that makes clear the novelty, significance, broader relevance of their work in a measurement context and relevance to the readership of Measurement Science and Technology. All submitted articles should contain consideration of the uncertainty, precision and/or accuracy of the measurements presented. Subject coverage includes the theory, practice and application of measurement in physics, chemistry, engineering and the environmental and life sciences from inception to commercial exploitation. Publications in the journal should emphasize the novelty of reported methods, characterize them and demonstrate their performance using examples or applications.