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An Efficient Phase I Analysis of Linear Profiles with Application in Photo-Voltaic System

机译:应用在光伏系统中的线性曲线的有效阶段分析

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摘要

In many manufacturing industries, quality of an item depends on different characteristics and their relationship may be modeled by profiles. For instance, in photo-voltaic (PV) system, output voltage is dependent on the capacitance level of capacitors, used in the Z-source inverter. Control chart is a dynamic tool that works under two different phases namely Phase I and Phase II. The unknown parameters are estimated in Phase I, while Phase II focuses on monitoring of the process using estimated control limits from Phase I. In this study, we have investigated Phase I monitoring of linear profile parameters under several sampling approaches including ranked set sampling (RSS), double RSS, median RSS (MRSS), double MRSS, extreme RSS (ERSS) and double ERSS. A comparative analysis on the performance of existing and proposed schemes is performed in terms of probability to signal. The results advocate that the proposed methods under different ranked set schemes offer superior detection abilities as compared to the existing schemes for varying shifts in profile parameters (intercept, slope and error variance). Moreover, a real application related to PV system is included to show the practical demonstration of the profile monitoring (for the output voltage in relation to capacitance level) under proposed schemes.
机译:在许多制造业中,物品的质量取决于不同的特征,并且它们的关系可能由概要文件进行建模。例如,在光伏(PV)系统中,输出电压取决于Z源逆变器中使用的电容器的电容电平。控制图是一种动态工具,可在两个不同的阶段下工作,即相位i和第二阶段。未知参数在阶段I估计,而II期估计使用估计的控制限制从第I期的估计控制限制监测。在本研究中,我们已经调查了在几种采样方法下监视线性配置率参数的阶段,包括排名设定采样(RSS ),双RSS,中位数RSS(MRSS),Double MRSS,Extreme RSS(ERSS)和双重。关于现有和提出方案性能的比较分析是在信号的概率方面进行的。结果倡导不同排名设定方案下的所提出的方法提供了卓越的检测能力,与现有方案相比,在配置文件参数(拦截,斜率和误差方差)中的不同移位方案相比。此外,包括与PV系统相关的真实应用,以显示在提出的方案下的轮廓监测的实际演示(对于电容电平相关的输出电压)。

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