Cursul 10 [pps]

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CURENTI DE LAGAR SI POTENTIALUL DE ARBORE La functionarea sub 50hz, potentialul arborelui si curentii de lagar au 3 surse de baza: Nesimetrii Excentricitati rotorice Flux homopolar Inductie electromagnetica: datorata disimetriilor din circuitul rotoric si al campului in intrefier. Cuplaje electrostatice: posibile acumulari de sarcini datorate surselor interne. Uplaje electrostatice externe: datorate diferitelor surse externe (frecarea intre curele, de exemplu) Flux axial diferit de zero Potential de arbore 2009-2010 SEM - CURS 10 38
Masini alimentate prin convertoare Pe langa cele prezentate anterior exista si surse datorate formei tensiunii/curentului de alimentare 2009-2010 SEM - CURS 10 39
Page 1 and 2: COMPATIBILITATE ELECTROMAGNETICA IN
Page 3 and 4: SURSA DE PERTURBATII (EMITATOR) A a
Page 5 and 6: •INTENSITATEA INTERFERENTEI •IN
Page 7 and 8: SISTEME PERTURBATE sisteme de telec
Page 9 and 10: Sursa de interferenta electromagnet
Page 11 and 12: N Statie de transformare R B N, pă
Page 13 and 14: 0V PUNCT DE MASA CENTRAL CU LEGATUR
Page 15 and 16: SUBSISTEM I SUBSISTEM II SUBSISTEM
Page 17 and 18: PERTURBATIILE DE MOD COMUN : U 1mas
Page 19 and 20: Alimentare Convertor de putere Masi
Page 21 and 22: Peria deschide o bobina initial scu
Page 23 and 24: MASINI DE C.A. ALIMENTATE PRIN CONV
Page 25 and 26: Z fn Evaluare experimentala Neutru
Page 27 and 28: Circuit echivalent de inalta frecve
Page 29 and 30: Schema echivalenta de inalta frecve
Page 31 and 32: Curent de mod comun I MC1 R W1 L W1
Page 33 and 34: V’ a V’ b V’ c V’ ab V’ b
Page 35 and 36: Evaluarea experimentala a curentilo
Page 37: 3I DM at AC side 3I CM at AC side 2
Page 41 and 42: Caile de curenti de inalta frecvent
Page 43 and 44: ARMONICI 2009-2010 SEM - CURS 10 43
Page 45 and 46: π/3 N π/18 A B C Schema de conexi
Page 47 and 48: Convertoare Y Y Y Y Y ∆ Y Y ∆ Y
Page 49 and 50: Redresoare cu IGBT 2009-2010 SEM -
Page 51 and 52: 140 120 100 80 60 40 20 0 1 2 3 4 T
Page 53 and 54: Filtre active 2009-2010 SEM - CURS
Page 55 and 56: 2009-2010 SEM - CURS 10 55
Page 57 and 58: Valoarea media si maxima a campului
Page 59 and 60: U LC TEM longitudinala I LC R LC R
Page 61 and 62: Automotive 2009-2010 SEM - CURS 10

Cursul 10 [pps]

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