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AC/DC converter Curenti de mod comun Curenti de mod normal Armonici Interferente radiative DC/AC converter Connectors Ground Electrical machine Differential-mode current Common-mode current 2009-2010 SEM - CURS 10 32
V’ a V’ b V’ c V’ ab V’ bc V 2 (1,1,0) V 3 (0,1,0) V 0 (0,0,0) State 1 (1,0,0) V dc /2 -V dc /2 -V dc /2 -V dc 0 V 1 (1,0,0) V 4 (0,1,1) V’’ a V’’ b V’’ c V’’ ab V’’ bc V 7 (1,1,1) Voltage inverter State 2 (1,1,0) V 6 (1,0,1) V 5 (0,0,1) V dc /2 V dc /2 -V dc /2 0 -V dc Transition 1→2 ∆∆∆∆V a ∆∆∆∆V b ∆∆∆∆V c ∆∆∆∆V ab ∆∆∆∆V bc 0 V dc 0 V dc - V cd V’ -V V’’ -V 0 2009-2010 ca dc ca dc ∆∆∆∆V ca SEM - CURS 10 33
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: Curent de mod comun I MC1 R W1 L W1
Page 35 and 36: Evaluarea experimentala a curentilo
Page 37 and 38: 3I DM at AC side 3I CM at AC side 2
Page 39 and 40: Masini alimentate prin convertoare
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

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