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Title Author: owen Last modified by: YlmF Created Date: 1/16/2000 2:51:46 PM Document presentation format: On-screen Show – PowerPoint PPT presentation

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Tags: induction | mutual

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Title:


1
???(Electrical Machinery) ????
  • ????????
  • ????????
  • ??????????
  • ??????????
  • ???
  • ????

2
???(Electrical Machinery)
  • ???I????II

??? (Transformers)
????(AC Winding)
????(Induction Machines)
????(Synchronous Machines)
????(DC Electric Machines)
3
??? (Electrical Machinery)?????
4
??????????,???????????????????
  • 1.????????????(Construction)
  • 2.????????????????????
  • ?????,??????(Equation)??
  • ???(Equivalent Circuit)????
  • (Phasor Diagram)??????????
  • 3.????????????????????
  • ??????????(Analysis)?
  • --????????????????

5
???????????
  • ?????????
  • ??,????????????????????????????????
  • ???
  • ????????????????,????????????????????????????,????
    ???????????

6
??????????? ???,???????
  • ???????????????????????,??????????
  • ?????????
  • ???????????????????????,???????,??????????,???????
    ??????????,??????????????,???????

7
??????
  • ???????????????,
  • ????????????,
  • ????????????,
  • ???????????????,???????
  • ??
  • ?????????????????

8
??? (Electrical Machinery)?????
  • ????????,???????????????,????????????
  • ?????????
  • ?????????,???,?????
  • ????

9
??? (Electrical Machinery)???????
?????????
?????????? ?????????? ?????
(?????? ?????)
????????? ?????
10
??????(Fundamental Principles)
??(Construction) ----(????????)
(The Feature of Electric and Magnetic circuit)
????????
(??????????? ?????????)
??????????
?????????
????
11
??? (Electrical Machinery)????
  • 1???????? 10
  • 2?????? 20(??10)
  • 3???? 20
  • 4????? 10
  • 5? ????? 20
  • 6????? 20

12
????
  • ???????
  • (?????????
  • ??????????)
  • ?????????
  • ??????????
  • ?????????
  • ????????,???,?????
  • ?????????,?????????

13
??????
  • 1.??????????????????????? ??????? 2000
  • 2 .?????,???????(????),???????,1998,?2?
  • 3.?????,???(????),???????,1994,???
  • 4. ?????,????????????????,???????, 1997
  • 5.ltELECTRIC MACHINERY FUNDAMENTALSgt
  • Stephen J.Capman McGraw-Hill
    Book Company

14
????
  • ??? ??
  • ??? ??
  • --??????????????
  • (???203)
  • (??84831)

15
  • ???(Electrical Machinery)
  • ????
  • ????????
  • ????????
  • ??????????
  • ??????????
  • ???
  • ????

16
??
  • ????????????
  • ???????
  • ?????????????
  • ???????????
  • ?????????

17
??????????
  • ??(Electrical Machinery)?????????(?????)??????????
    ????????(Electric and Magnetic circuit),??????????
    ??(Electrical and magnetic Torque and Power)
    ,??????(Energy )??????
  • ??????????????
  • ????????????

18
  • ????
  • ???? ???
  • ?? ????
  • ???? ????
  • ????

  • ????

  • (????)
  • ??????????????
  • ????????????

19
????
  • ?????????--???(Generators)
  • ?????????--???(Motors)
  • ???????????,????????????????????

  • --??????
  • ???????????????????
  • --???????????????
  • ???????
  • ?????????????????????

20
?????
??????????? ???????????
????????? ?????????
???????????? ????????
?????? ?????? ????????
????????
21
?????????????????????????? ??????
  • ?????????????????????????????????????????????
  • 1??????????
  • ??????????????????????????????????????????????
    ?????????????????????,????????????,???????????????
    ??????,????????????
  • 1821?,?????????????????????,???????????,??????
    ????????
  • 1824?,??????????,1831?,????????????,1832?,????
    ????????

22
  • 2????????
  • ?????????????????????,???????????????
  • 1845?,????????????
  • 1867?,?????????
  • 1882?,?????????????
  • ?????????????????,??????????
  • 3?????????
  • 1876???????????,???????????????????

23
  • 4?????????
  • ?????????????,??????????????
  • ??,?????????????????,1885????????????????
  • 1889?,???-????????????????????????????????????
    ?????1897?,???????????????
  • ?????????????,?????????????????????????,??????
    ???????,????????

24
??????????????
  • ?????????????
  • 1?????????
  • ?????,?????????????
  • ??????????,?????,
  • ?????,?????????????
  • 2??????????????????
  • 3?????????
  • ????????????????
  • ????????????????

25
  • ???????
  • ???????,
  • ????????????
  • ????????????????
  • ?? ???????
  • ??????????????
  • ?????????,
  • ???????????????????
  • ???????????,
  • ????????????
  • ?????????

26
  • ???????????
  • ???200kW????2000kVA????
  • ???????,1955?10000kW??????1956?12000kW????
    ??19581960?72500kW??????,100MW??????????1959?
    220kV?120000kVA??????,6300kW???????4500kW??????19
    72?300MW?????????,360000KVA??????????600MW?
  • ??????1958??????????????????????????(12000kW)?????
    ????????????????

27
??????? ???????????,
????????????,
???????,?????
??????, ????????
????????????
28
?????
29
???????
????? ??????????????????????
????????????????????????
?????,?????????????? ?????????????????????
???????????????????
  • ?????
  • ????????4??????
  • ??????? ???????????
  • ?????????? ????????

30
??????
  • ???????
  • ?????????
  • ??????????
  • ????????

31
???????
1?????? (magnetic flux density) (??)
?????,T,???? ????????????????
????????,?????????
??????????????
32
2???(magnetic flux)f ????,Wb
?????????????????? ????????????B????


???????,???????????????, ???????????????
? ????????,? ? ??,?F BS?
33
3?????(magnetic field intensity) (??)
????/?,At/m. ?????????????????
????????????????? ??????????
µ , µ????(permeability),???H/m,
4p10-7?/? (??) ??????µ???????? µ????
???????? ???? µ ?? ?1000?
??????µ ?? ?60007000??
34
4???(magnetomotive force MMF)F
(???,???) ???? , At ?
FNI ????????????
5???(reluctance of the magnetic circuit)
???1/? ? At/Wb L/µs
L?????,s????????
35
6??? 1/
?????
7??? (flux linkage)? ?N f ,?????????
36
?????????? (????????) 1??????? ??????
B?H???, ?????? ??????
B?H??? ?????
37
2?????
Br?????????Hc ?????
3???????

38
4???????????????? (1)???? ????,???????????????
?? ?V???????????????????,?? ?????????Bm?n?????,?
(2)???? ??????????????,???????????,??????????
???????????????,?????,????????????????
39
????,????,??????,????????,????????????????,??
????????,???????????????????,?????,?????
40
?????????? 1??????(Amperes law) ??n?????,????
?I1,I2,I3 ???????l, ?????? ????????????????
??????,?????????? ???????
???????
41
2???????(electromagnetic induction)
(Faradays
law) ???N???????,?????????? ?????,???????(emf),???
???? e??????????????????
(Lenzs
law)? ?????????????????
?????????? ????????????????,
??????????????
42
???????(emf) ?????????,???
??? ??????(motional emf)
????,??????????????? ????,??,???????????,
3????????????????????? ????????,???????????, ????
?,???,???????? (self-inductance) ??
,???????????????
43
4????? ??1?2,1??????????,???? 2?????,?2????
????
????
,M???1?2???????, ???? ??,??2??????1?????


M????????????
????????????? (mutual
inductance)
???
44
5?????? ????????????,
??????????, ?
,?????????
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