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Zbigniew Hanzelka

Akademia Górniczo-Hutnicza, 30-019 Kraków, Al. Mickiewicza 30

tel: [phone], tel/fax: [phone], e-mail:

[e-mail]

Konsultant techniczny Twelve Electric.

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Tablica 1

Czas trwania

Amplituda

(%)

DEK

U

od 20ms
do 100ms

od 100ms
do 500ms

od 500ms
do 1s

od 1s do 3s

od 3s do 20s

od 20s do 60s

Od 10 do 15
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Od 60 do 90
Od 90 do 100
100

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Tablica 2

Czas trwania

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DEK

U

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instalowanie odgromników;

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8

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9

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Rys. 7.

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4. SKUTKI ZABURZENIA

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z technicznego jak i ekonomicznego punktu widzenia.

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w sposób niezamierzony podczas zaburzenia elektromagnetycznego. Prowadzi to zwykle

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10

Z\PLHQLü QDOH*\ SUyF] DPSOLWXG\ ]DSDGX RUD] F]DVX MHJR WUZDQLD WDN*H SXQNW SU]HELHJX

F]DVRZHJRQDSL FLDZNWyU\PUR]SRF]\QDVL ]DSDGID]DSRF]WNRZD]DEXU]HQLDRUD]SXQNW

Z NWyU\P QDSL FLH ZUDFD GR SLHUZRWQHM ZDUWRFL ID]D NRFRZD ]DEXU]HQLD 1DJáD ]PLDQD

QDSL FLD SRGF]DV ]DEXU]HQLD SRZRGXMH ERZLHP ]áR*RQ\ SU]HELHJ F]DVRZ\ SUGX Z FHZFH
(Turner i inni, 1996).

Podczas

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LVNRNRZHMUHGXNFMLZDUWRFLQDSL FLD

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8

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8

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przerwy w zasilaniu.

11

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Druga

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zaburzenia.

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W czasie

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QDSL FLDRDPSOLWXG]LHZL NV]HMQL*PRJVSRZRGRZDüDZDUL W\FKXU]G]H

W przypadku regulowanych prostowników o sterowaniu fazowym, podczas

]DSDGXQDSL FLD

S WODVSU] *HQLD]ZURWQHJRVWDUDVL SRGWU]\PDüVWDáHQDSL FLHZ\MFLRZHSRSU]H]]PQLHMV]HQLH

NWD Z\VWHURZDQLD W\U\VWRUyZ : ZL NV]RFL SU]\SDGNyZ SRGF]DV GáXJLFK L Já ERNLFK

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V\VWHPX]DEH]SLHF]DMFHJR

W przypadku niesymetrycznych

]DSDGyZ DPSOLWXGD SHZQ\FK QDSL ü ]DVLODMF\FK PDOHMH

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ac/dc

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Podczas

]DSDGyZQDSL FLDV]F]HJyOQLHLVWRWQHMHVW]DFKRZDQLHVL SU]HNV]WDáWQLNDE GFHJR

w zakresie pracy

LQZHUWRURZHM %UDN OXE UHGXNFMD ZDUWRFL QDSL FLD VLHFL ]PQLHMV]D ZDUWRü

12

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w

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]SRUHGQLPSU]HPLHQQLNLHPF] VWRWOLZRFL96,voltage source invertor – rys. 8a) i diodowym

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: SU]\SDGNX JG\ QDSL FLD ID]RZH V QLHV\PHWU\F]QH QS MDN PD WR PLHMVFH SRGF]DV

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9

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10

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9

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fazy (szczególnie istotne w sieciach z izolowanym punktem zerowym).

10

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]QDPLRQRZHJRDZDUWRüV]F]\WRZDWHJRSUGXPR*HSU]HNURF]\üNURWQRüMansoor i inni, 1996).

13

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11

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11

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15

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uaktywnienia.

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(van Zyl A. 1998)

12

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13

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(iii)

alternatywne zasilanie,

(iv)

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12

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13

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16

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14

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2 s p o s ó b

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i szybszy.

4 s p o s ó b

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14

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17

5 s p o s ó b

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zachowana jest

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6 s p o s ó b

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momentów oraz tylko do tych przypadków w których realizowana technologia zezwala

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7 s p o s ó b

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16

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zmniejszeniu podczas

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15

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17

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jej zabezpieczeniami.

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UPS-ów lub dodatkowych generatorów.

Styczniki

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-

zasilanie styczników przez systemy bezprzerwowego zasilania (silnik-generator, UPS itp.);

-

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Polega na wytworzeniu wspólnych szyn dc

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M

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22

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(dc)

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23

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24

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19

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25

(a)

(b)

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Rys. 14 Cykl pracy stabilizatora: (a) tranzystor w stanie przewodzenia, dioda w stanie blokowania;

(b) tranzystor w stanie nie przewodzenia, dioda w stanie przewodzenia;

(c) sekwencja pracy stabilizatora podczas

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Oferowany wg (Jouanne 1999) przez wielu producentów w przedziale mocy do 500kW.

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Dodatkowe informacje: http://www.baldor.com

30

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RUHJXORZDQHMSU GNRFL. Gliwice 1999

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31

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