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VYSOK UEN TECHNICK V BRN BRNO UNIVERSITY OF TECHNOLOGY
FAKULTA ELEKTROTECHNIKY A KOMUNIKANCH TECHNOLOGI
STAV RADIOELEKTRONIKY
FACULTY OF ELECTRICAL ENGINEERING AND COMMUNICATION
DEPARTMENT OF RADIO ELECTRONICS
MEN SYMETRICKHO A NESYMETRICKHO
RUEN NA NAPJECCH VODICH DIFFERENTIAL AND COMMON MODE CONDUCTED EMISSIONS MEASUREMENT
DIPLOMOV PRCE
DIPLOMA THESIS
AUTOR PRCE Bc. MICHAL MATSEK
AUTHOR
VEDOUC PRCE Ing. JI DNOVSK, Ph.D.
SUPERVISOR
BRNO, 2015
VYSOK UEN
TECHNICK V BRN
Fakulta elektrotechniky
a komunikanch technologi
stav radioelektroniky
Diplomov prce
magistersk navazujc studijn obor Elektronika a sdlovac technika
Student: Bc. Michal Matsek ID: 134555
Ronk: 2 Akademick rok: 2014/2015
NZEV TMATU:
Men symetrickho a nesymetrickho ruen na napjecch vodich
POKYNY PRO VYPRACOVN:
MM2E: Seznamte s menm emis, kter se pen ze zazen do rozvodn elektrick st po
vodich. Dle nastudujte princip uml zte veden LISN, analyzujte mechanismus vzniku
symetrickho a nesymetrickho ruen vybranho jednofzovho sovho obvodu (napjec
zdroj nebo zen asynchronnho motoru) a jak se jednotliv sloky uplatuj na micch
svorkch LISN. Na zklad tchto znalost navrhnte koncept ppravku, pomoc nho bude
mon mit oddlen symetrick a nesymetrick ruen ke snadnjmu nalzn zdroje
celkovch emis vychzejcch ze zazen zptky do napjecch vodi. MMSE: Podle
zvolenho konceptu vytvote konkrtn schma zapojen a provete analzu vlonho tlumu
ppravku. Navrhnte desku plonch spoj a mechanickou konstrukci. Nakonec ppravek
zrealizujte a provete praktick men s konkrtnm zazenm.
DOPORUEN LITERATURA:
[1] DNOVSK, J., FRZA, T., SVAINA, J., KEJK, Z., REK, V., ZACHAR, J.,
Elektromagnetick kompatibilita - pednky. Skriptum. Brno: VUT v Brn, 2010.
[2] SN EN 55022 ed. 2, Zazen informan techniky - Charakteristiky vysokofrekvennho
ruen - Meze a metody men, duben 2007.
Termn zadn: 22.9.2014 Termn odevzdn: 21.5.2015
Vedouc prce: Ing. Ji Dnovsk,Ph.D.
Konzultanti bakalsk prce: Ing. Ji Prikin
doc. Ing. Tom Kratochvl, Ph.D.
Pedseda oborov rady
UPOZORNN:
Autor diplomov prce nesm pi vytven diplomov prce poruit autorsk prva tetch osob, zejmna
nesm zasahovat nedovolenm zpsobem do cizch autorskch prv osobnostnch a mus si bt pln
vdom nsledk poruen ustanoven 11 a nsledujcch autorskho zkona . 121/2000 Sb., vetn
monch trestnprvnch dsledk vyplvajcch z ustanoven sti druh, hlavy VI. dl 4 Trestnho
zkonku .40/2009 Sb.
ABSTRAKT
Prce se zabv ruivmi signly a umy, monostmi jejich men, zpsobem jejich
odstrann a nsledn nvrhem uml st LISN. V teoretick sti je uveden zpsob
vzniku ruivch signl, jejich druhy a pehled mcch pstroj pro jednotliv druhy
tchto signl a jejich vlastnost. V rmci praktick sti byla vyvinuta uml s LISN
pro dlouhodobou zt 5 A, frekvennm rozsahem 150 kHz a 30 MHz s monost
mit oddlen symetrick a asymetrick ruiv napt a pepnutm do funkce smen
jako klasick LISN. S LISN byla pro lep parametry eena jako dvoustupov filtr
LC.
KLOV SLOVA
Napjec s, Symetrick ruen, Asymetrick ruen, Elektromagnetick interference,
Uml zt veden
ABSTRACT
This work deals with interfering signals and noises, possibilities of their measurement,
their reduction and afterwards with design of LISN. The theoretical part analyzes
formation of interfering signals, their types, with possible measuring instruments for
each type of these signals and their properties. In framework of practical part LISN for
long-term load of 5 A, frequency range from 150 kHz to 30 MHz, with possibility to
measure symmetrical and asymmetrical noise separately and also with possibility to
switch to normal mode of LISN was developed. For better results LISN was realized as
two stage LC filter.
KEYWORDS
Power grid, Differential mode noise, Common mode noise, Electromagnetic
interference, Line impedance stabilization network
MATSEK, Michal. Men symetrickho a nesymetrickho run na napjecch
vodich. Brno: Vysok uen technick v Brn, Fakulta elektrotechniky a
komunikanch technologi. stav radioelektroniky, 2014. 83 s., 5 s. ploh. Diplomov
prce. Vedouc prce: ing. Ji Dnovsk, Ph.D.
PROHLEN
Prohlauji, e svou diplomovou prci na tma men symetrickho a nesymetrickho
run na napjecch vodich jsem vypracoval samostatn pod vedenm vedoucho
diplomov prce a s pouitm odborn literatury a dalch informanch zdroj, kter
jsou vechny citovny v prci a uvedeny v seznamu literatury na konci prce.
Jako autor uveden diplomov prce dle prohlauji, e v souvislosti s vytvoenm
tto diplomov prce jsem neporuil autorsk prva tetch osob, zejmna jsem nezashl
nedovolenm zpsobem do cizch autorskch prv osobnostnch a/nebo majetkovch a
jsem si pln vdom nsledk poruen ustanoven 11 a nsledujcch zkona
. 121/2000 Sb., o prvu autorskm, o prvech souvisejcch s prvem autorskm
a o zmn nkterch zkon (autorsk zkon), ve znn pozdjch pedpis, vetn
monch trestnprvnch dsledk vyplvajcch z ustanoven sti druh, hlavy VI.
dl 4 Trestnho zkonku . 40/2009 Sb.
V Brn dne .............................. ....................................
(podpis autora)
PODKOVN
Dkuji vedoucmu diplomov prce Ing. Jimu Dnovskmu, Ph.D. a konzultantovi
Ing. Jimu Prikinovi za innou metodickou, pedagogickou a odbornou pomoc a dal
cenn rady pi zpracovn m diplomov prce.
V Brn dne .............................. ....................................
(podpis autora)
Faculty of Electrical Engineering and Communication
Brno University of Technology Technicka 12, CZ-61600 Brno, Czechia
http://www.six.feec.vutbr.cz
Faculty of Electrical Engineering and Communication
Brno University of Technology Technicka 12, CZ-61600 Brno, Czechia
http://www.six.feec.vutbr.cz
Vzkum popsan v tto diplomov prci byl realizovan v laboratoch podpoench projektem
Centrum senzorickch, informanch a komunikanch systm (SIX); registran slo
CZ.1.05/2.1.00/03.0072, operanho programu Vzkum a vvoj pro inovace.
OBSAH
Seznam Obrzk xi
Seznam tabulek xv
vod 1
TEORETICK ST 2
1 Druhy ruivch signlu 2
2 Vznik ruivch signlu 3
2.1 Vlastnosti energetick st ........................................................................ 3
2.2 Ruiv signly elektrick st ................................................................... 3
2.2.1 Souasn problmy s ruivmi signly ze st ...................................... 4
2.3 Ruiv signly spotebi ......................................................................... 4
3 Men ruivch signl 4
3.1 Men napovou sondou ........................................................................ 5
3.2 Men proudovou sondou ........................................................................ 6
3.3 Men absorpnmi kletmi .................................................................... 6
3.4 Men s umlou st LISN ........................................................................ 7
3.5 Mie umu RFI ...................................................................................... 9
4 Uml st LISN 11
4.1 Doln propust .......................................................................................... 11
4.2 Horn propust .......................................................................................... 12
4.3 Impedann pizpsoben ........................................................................ 13
4.3.1 Nzkonapov st ............................................................................. 13
4.3.2 Prmyslov st ................................................................................... 13
4.3.3 Palubn napjec st ........................................................................... 14
4.3.4 Klasick napjec st .......................................................................... 14
4.4 Mechanick konstrukce st LISN .......................................................... 15
5 Analza CM A DM ruivch signl z AC/DC mni 16
5.1 CM ruiv signly na AC/DC mnii ..................................................... 16
5.2 DM ruiv signly na AC/DC mnii ..................................................... 17
5.3 Ostatn ruiv signly na AC/DC mnii ................................................ 18
6 Oddlen CM a DM sloky ruivch signlu 19
6.1 Oddlen CM a DM pomoc signlovch sluova .............................. 19
6.1.1 Typy a volba signlnch sluova ..................................................... 20
6.2 Oddlen CM a DM pomoc transformtor ........................................... 22
6.3 Oddlen CM a DM pomoc operanch zesilova ............................... 24
6.4 Oddlen CM a DM pomoc proudovch sond ....................................... 24
6.5 Oddlen CM a DM pro trojfzov soustavy .......................................... 25
6.5.1 Pasivn een ...................................................................................... 25
6.5.2 Aktivn een ...................................................................................... 26
NVRH ZAZEN 28
7 Nvrh st LISN s monost men oddlenho symentrickho a asymetrickho ruen 28
7.1 Nvrh doln propusti .................................................