Asynchronous Machine Set for Electrical Laboratories Part 1: Noise Load

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62690094%3A18440%2F17%3A50014470" target="_blank" >RIV/62690094:18440/17:50014470 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/EECS.2017.61" target="_blank" >http://dx.doi.org/10.1109/EECS.2017.61</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/EECS.2017.61" target="_blank" >10.1109/EECS.2017.61</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Asynchronous Machine Set for Electrical Laboratories Part 1: Noise Load

Popis výsledku v původním jazyce

The operation of any kind of machines or machine sets is always linked with a higher or lower noise level. When electric machines are considered, the biggest noise is produced by machines fed with a frequency converter with a low carrier frequency, by machines fed with a frequency converter in the V/f mode without carrier frequency, and especially by loaded asynchronous alternators. Considering the health protection, working in electrical laboratories, especially when using rotating machines, is frequently linked with the risk of hearing damage suffered by the laboratory staff, which results from a long-term exposure to high-level noise. Medium and higher medium frequencies of the narrow-spectral noise are the most critical. Therefore, it is essential to equip the laboratory staff with efficient hearing protectors. The paper presents the results of acoustic measurements carried out on a model of an energetic micro-source for island networks. The measurements were carried out in accordance with the standardized methodology required for varied operational modes - the range of these modes was from running without load to running at the maximum load. Both the changes in the acoustic pressure and the changes in the spectral composition of the noise produced by the machine set were monitored. From the results of the measurements it is clear that the noise spectrum shows distinctive narrow-band maxima which have to be considered when designing acoustic adjustments to laboratories or when installing generators in residential buildings.

Název v anglickém jazyce

Asynchronous Machine Set for Electrical Laboratories Part 1: Noise Load

Popis výsledku anglicky

The operation of any kind of machines or machine sets is always linked with a higher or lower noise level. When electric machines are considered, the biggest noise is produced by machines fed with a frequency converter with a low carrier frequency, by machines fed with a frequency converter in the V/f mode without carrier frequency, and especially by loaded asynchronous alternators. Considering the health protection, working in electrical laboratories, especially when using rotating machines, is frequently linked with the risk of hearing damage suffered by the laboratory staff, which results from a long-term exposure to high-level noise. Medium and higher medium frequencies of the narrow-spectral noise are the most critical. Therefore, it is essential to equip the laboratory staff with efficient hearing protectors. The paper presents the results of acoustic measurements carried out on a model of an energetic micro-source for island networks. The measurements were carried out in accordance with the standardized methodology required for varied operational modes - the range of these modes was from running without load to running at the maximum load. Both the changes in the acoustic pressure and the changes in the spectral composition of the noise produced by the machine set were monitored. From the results of the measurements it is clear that the noise spectrum shows distinctive narrow-band maxima which have to be considered when designing acoustic adjustments to laboratories or when installing generators in residential buildings.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

2017 European Conference on Electrical Engineering and Computer Science (EECS) (2017)

ISBN

978-1-5386-2085-4

ISSN

—

e-ISSN

neuvedeno

Počet stran výsledku

5

Strana od-do

295-299

Název nakladatele

he Institute of Electrical and Electronics Engineers, Inc.

Místo vydání

Bern

Místo konání akce

Bern

Datum konání akce

17. 11. 2017

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000455867600053