Proposal of a Desynchronized Processing Technique for Assessing High-Frequency Distortion in Power Systems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F19%3APU131460" target="_blank" >RIV/00216305:26220/19:PU131460 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/8678428" target="_blank" >https://ieeexplore.ieee.org/document/8678428</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TIM.2019.2907755" target="_blank" >10.1109/TIM.2019.2907755</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Proposal of a Desynchronized Processing Technique for Assessing High-Frequency Distortion in Power Systems

Popis výsledku v původním jazyce

Assessing high-frequency (HF) distortion (HFD) in power systems is a new challenge in the framework of in situ power quality monitoring. The International Electrotechnical Commission (IEC) suggests the use of a high-pass filter in the measurement chain, which can be analog (with a dedicated channel for HF assessment) or integrated into its digital form into the signal processing (SP) stage, in order to reduce the measurement uncertainty. This paper proposes a desynchronized processing technique (DPT) as an effective alternative to the other digital filtering techniques presented in the literature, which also allows for a potential simplification of the measurement hardware. The DPT performance is analyzed by means of numerical experiments and laboratory measurements performed using two different test beds and both 16-and 24-bit analogto-digital converters (ADCs). The test beds are used to evaluate the combined contribution of the ADC and the SP stage to the whole measurement chain uncertainty and identify achievable accuracy levels for different frequency ranges and magnitudes of HFD. The results highlight the strengths of the DPT compared to other techniques and demonstrate its potential to include HF in a comprehensive waveform distortion assessment in power systems.

Název v anglickém jazyce

Proposal of a Desynchronized Processing Technique for Assessing High-Frequency Distortion in Power Systems

Popis výsledku anglicky

Assessing high-frequency (HF) distortion (HFD) in power systems is a new challenge in the framework of in situ power quality monitoring. The International Electrotechnical Commission (IEC) suggests the use of a high-pass filter in the measurement chain, which can be analog (with a dedicated channel for HF assessment) or integrated into its digital form into the signal processing (SP) stage, in order to reduce the measurement uncertainty. This paper proposes a desynchronized processing technique (DPT) as an effective alternative to the other digital filtering techniques presented in the literature, which also allows for a potential simplification of the measurement hardware. The DPT performance is analyzed by means of numerical experiments and laboratory measurements performed using two different test beds and both 16-and 24-bit analogto-digital converters (ADCs). The test beds are used to evaluate the combined contribution of the ADC and the SP stage to the whole measurement chain uncertainty and identify achievable accuracy levels for different frequency ranges and magnitudes of HFD. The results highlight the strengths of the DPT compared to other techniques and demonstrate its potential to include HF in a comprehensive waveform distortion assessment in power systems.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/LO1210" target="_blank" >LO1210: Energie v podmínkách udržitelného rozvoje (EN-PUR)</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT

ISSN

0018-9456

e-ISSN

1557-9662

Svazek periodika

68

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

3883-3891

Kód UT WoS článku

000487044900010

EID výsledku v databázi Scopus

2-s2.0-85072525749