Comparison of analog-to-digital filter conversion methods in a digital flickermeter

Soo Hwan Cho, Gilsoo Jang, Sae Hyuk Kwon, Jung Wook Park

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A standard of International Electrotechnical Commission (IEC) has defined the flicker measuring specification in an analog manner. But the analog specs are inefficient when implementing a flickermeter in the real world according to the standard. Therefore, it is necessary to convert its original analog filters to the corresponding digital forms as well as applying other digital processing techniques such as data sampling, bit resolution, and filtering theory. Even though a digital flickermeter may meet the requirements of the IEC standard, its outputs will vary according to the analog-to-digital filtering conversion methods used such as bilinear transformation, impulse invariance transformation, and covariance invariant transformation. This paper presents the characteristics of various filter conversion methods and the influences on the digital implementation of a flickermeter, which are simulated by using MATLAB®. Finally, this paper concludes with which methods are the most adequate to implement an IEC digital flickermeter, helping ultimately to avoid ambiguities from analog prototypes described in original standard.

Original languageEnglish
Pages (from-to)125-131
Number of pages7
JournalElectrical Engineering
Volume91
Issue number3
DOIs
Publication statusPublished - 2009 Nov 1

Fingerprint

Digital Filter
Digital filters
Analogue
Filtering
Invariance
Digital signal processing
Filter
MATLAB
Sampling
Specifications
Impulse
Convert
Vary
Prototype
Specification
Invariant
Necessary
Standards
Output
Requirements

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

Cho, Soo Hwan ; Jang, Gilsoo ; Kwon, Sae Hyuk ; Park, Jung Wook. / Comparison of analog-to-digital filter conversion methods in a digital flickermeter. In: Electrical Engineering. 2009 ; Vol. 91, No. 3. pp. 125-131.
@article{9b7c2256473d45beabdb700a8129a41f,
title = "Comparison of analog-to-digital filter conversion methods in a digital flickermeter",
abstract = "A standard of International Electrotechnical Commission (IEC) has defined the flicker measuring specification in an analog manner. But the analog specs are inefficient when implementing a flickermeter in the real world according to the standard. Therefore, it is necessary to convert its original analog filters to the corresponding digital forms as well as applying other digital processing techniques such as data sampling, bit resolution, and filtering theory. Even though a digital flickermeter may meet the requirements of the IEC standard, its outputs will vary according to the analog-to-digital filtering conversion methods used such as bilinear transformation, impulse invariance transformation, and covariance invariant transformation. This paper presents the characteristics of various filter conversion methods and the influences on the digital implementation of a flickermeter, which are simulated by using MATLAB{\circledR}. Finally, this paper concludes with which methods are the most adequate to implement an IEC digital flickermeter, helping ultimately to avoid ambiguities from analog prototypes described in original standard.",
author = "Cho, {Soo Hwan} and Gilsoo Jang and Kwon, {Sae Hyuk} and Park, {Jung Wook}",
year = "2009",
month = "11",
day = "1",
doi = "10.1007/s00202-009-0122-1",
language = "English",
volume = "91",
pages = "125--131",
journal = "Electrical Engineering",
issn = "0948-7921",
publisher = "Springer Verlag",
number = "3",

}

Comparison of analog-to-digital filter conversion methods in a digital flickermeter. / Cho, Soo Hwan; Jang, Gilsoo; Kwon, Sae Hyuk; Park, Jung Wook.

In: Electrical Engineering, Vol. 91, No. 3, 01.11.2009, p. 125-131.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Comparison of analog-to-digital filter conversion methods in a digital flickermeter

AU - Cho, Soo Hwan

AU - Jang, Gilsoo

AU - Kwon, Sae Hyuk

AU - Park, Jung Wook

PY - 2009/11/1

Y1 - 2009/11/1

N2 - A standard of International Electrotechnical Commission (IEC) has defined the flicker measuring specification in an analog manner. But the analog specs are inefficient when implementing a flickermeter in the real world according to the standard. Therefore, it is necessary to convert its original analog filters to the corresponding digital forms as well as applying other digital processing techniques such as data sampling, bit resolution, and filtering theory. Even though a digital flickermeter may meet the requirements of the IEC standard, its outputs will vary according to the analog-to-digital filtering conversion methods used such as bilinear transformation, impulse invariance transformation, and covariance invariant transformation. This paper presents the characteristics of various filter conversion methods and the influences on the digital implementation of a flickermeter, which are simulated by using MATLAB®. Finally, this paper concludes with which methods are the most adequate to implement an IEC digital flickermeter, helping ultimately to avoid ambiguities from analog prototypes described in original standard.

AB - A standard of International Electrotechnical Commission (IEC) has defined the flicker measuring specification in an analog manner. But the analog specs are inefficient when implementing a flickermeter in the real world according to the standard. Therefore, it is necessary to convert its original analog filters to the corresponding digital forms as well as applying other digital processing techniques such as data sampling, bit resolution, and filtering theory. Even though a digital flickermeter may meet the requirements of the IEC standard, its outputs will vary according to the analog-to-digital filtering conversion methods used such as bilinear transformation, impulse invariance transformation, and covariance invariant transformation. This paper presents the characteristics of various filter conversion methods and the influences on the digital implementation of a flickermeter, which are simulated by using MATLAB®. Finally, this paper concludes with which methods are the most adequate to implement an IEC digital flickermeter, helping ultimately to avoid ambiguities from analog prototypes described in original standard.

UR - http://www.scopus.com/inward/record.url?scp=70350478441&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70350478441&partnerID=8YFLogxK

U2 - 10.1007/s00202-009-0122-1

DO - 10.1007/s00202-009-0122-1

M3 - Article

AN - SCOPUS:70350478441

VL - 91

SP - 125

EP - 131

JO - Electrical Engineering

JF - Electrical Engineering

SN - 0948-7921

IS - 3

ER -