Abstract
This paper presents a simple and efficient power-quality (PQ) evaluation method based on the half-cycle root-mean-square (H-RMS) calculation, which can be easily applied to waveform distortions processed from instantaneous values. PQ disturbances, especially related to voltage magnitude variations, can be generally divided into two categories by the measuring method: One is the rms-based PQ events, which include voltage sag, swell, undervoltage, overvoltage, and interruption, which are defined by the magnitude variations in terms of rms values. The other is the instantaneous value-based PQ events, which include transient, noise, harmonics, interharmonics, and flicker (or voltage fluctuation), some of which are assessed by the raw data or processed through frequency analysis and filtering. According to the fundamental characteristic and definition of each PQ event, the acquired signal data should be processed through the different routes. This study shows that the H-RMS-based measuring process can be usefully applied to quantify the instantaneous value-based PQ events, especially in regards to waveform distortions, such as harmonic distortion and flicker, which can be assessed by the IEC flicker severity index (P st) and the equivalent 10-Hz flicker index (Δ V 10).
| Original language | English |
|---|---|
| Article number | 6185714 |
| Pages (from-to) | 1461-1467 |
| Number of pages | 7 |
| Journal | IEEE Transactions on Power Delivery |
| Volume | 27 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2012 Apr 24 |
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Keywords
- Envelope signal
- half-cycle-root mean square (H-RMS)
- IEC flickermeter
- total harmonics
- voltage fluctuation
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Energy Engineering and Power Technology
Cite this
A waveform distortion evaluation method based on a simple Half-Cycle RMS calculation. / Cho, Soo Hwan; Park, Chang Hyun; Han, Jonghoon; Jang, Gilsoo.
In: IEEE Transactions on Power Delivery, Vol. 27, No. 3, 6185714, 24.04.2012, p. 1461-1467.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A waveform distortion evaluation method based on a simple Half-Cycle RMS calculation
AU - Cho, Soo Hwan
AU - Park, Chang Hyun
AU - Han, Jonghoon
AU - Jang, Gilsoo
PY - 2012/4/24
Y1 - 2012/4/24
N2 - This paper presents a simple and efficient power-quality (PQ) evaluation method based on the half-cycle root-mean-square (H-RMS) calculation, which can be easily applied to waveform distortions processed from instantaneous values. PQ disturbances, especially related to voltage magnitude variations, can be generally divided into two categories by the measuring method: One is the rms-based PQ events, which include voltage sag, swell, undervoltage, overvoltage, and interruption, which are defined by the magnitude variations in terms of rms values. The other is the instantaneous value-based PQ events, which include transient, noise, harmonics, interharmonics, and flicker (or voltage fluctuation), some of which are assessed by the raw data or processed through frequency analysis and filtering. According to the fundamental characteristic and definition of each PQ event, the acquired signal data should be processed through the different routes. This study shows that the H-RMS-based measuring process can be usefully applied to quantify the instantaneous value-based PQ events, especially in regards to waveform distortions, such as harmonic distortion and flicker, which can be assessed by the IEC flicker severity index (P st) and the equivalent 10-Hz flicker index (Δ V 10).
AB - This paper presents a simple and efficient power-quality (PQ) evaluation method based on the half-cycle root-mean-square (H-RMS) calculation, which can be easily applied to waveform distortions processed from instantaneous values. PQ disturbances, especially related to voltage magnitude variations, can be generally divided into two categories by the measuring method: One is the rms-based PQ events, which include voltage sag, swell, undervoltage, overvoltage, and interruption, which are defined by the magnitude variations in terms of rms values. The other is the instantaneous value-based PQ events, which include transient, noise, harmonics, interharmonics, and flicker (or voltage fluctuation), some of which are assessed by the raw data or processed through frequency analysis and filtering. According to the fundamental characteristic and definition of each PQ event, the acquired signal data should be processed through the different routes. This study shows that the H-RMS-based measuring process can be usefully applied to quantify the instantaneous value-based PQ events, especially in regards to waveform distortions, such as harmonic distortion and flicker, which can be assessed by the IEC flicker severity index (P st) and the equivalent 10-Hz flicker index (Δ V 10).
KW - Envelope signal
KW - half-cycle-root mean square (H-RMS)
KW - IEC flickermeter
KW - total harmonics
KW - voltage fluctuation
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UR - http://www.scopus.com/inward/citedby.url?scp=84862991784&partnerID=8YFLogxK
U2 - 10.1109/TPWRD.2012.2190304
DO - 10.1109/TPWRD.2012.2190304
M3 - Article
AN - SCOPUS:84862991784
VL - 27
SP - 1461
EP - 1467
JO - IEEE Transactions on Power Delivery
JF - IEEE Transactions on Power Delivery
SN - 0885-8977
IS - 3
M1 - 6185714
ER -