Tài liệu ĐỘNG CƠ KHÔNG ĐỒNG BỘ MỘT PHA pptx

 5.1 :         ,     ,          Watt,          110 V/220V.                       1      70%        3 pha,                     ,        1        50%  3 pha.      1    1              . 5.2             1 PHA :                    ,      1          ,           . 5.2.1.    (Stator):      : , , .         3 pha,            ,        0 90 . 5.2.2.  (Rotor):       1           ,    ,          ,        5.3               :                    1 pha,         . 5.3.1                            :                   tIi m  sin  1         ,                    .  :   4 1 T t  ,  ,            ,               .          B   T B  (  )  N B  ()  ,    B   2 B BB NT    .   4 T < 2 t < 2 T ,  ,  B   ,           .  B   T B   N B   2 B BB NT     B        .   2 3 T t  , 0i , B  = 0,  B  = 0  T B   N B         .   2 T < 4 t < 4 3T , i < 0, B    ,        ,    NT BBB              2 t .   4 3 5 T t  , m Ii  ,  B               trên,    B   T B   N B   B   2 B BB NT           1 .                          ,                                  . 5.3.2 Môment quay:        T B   N B      T  N   , .               .  không (n = 0),    (M = 0),              ,            , .    ,            1                   ,   5.4               PHA: 5.4.1               :        1                    ,            . ,            ,       90 0    gian, v 90 0    gian.                        ,                      ; trong                              dây.         ,              ,          ,    ( i A ) ( i B ) : tIi mA  sin )90sin( 0  tIi mB    A , i B        1 = 0,  A = 0,         B = -I m ,          2  1 .               B  ,        B   1 A 2  1  2   4 2 T t  , i A = +I m , i b = 0,  A  1  2 ,    B   1 B 2  1  2   2 3 T t  , i A = 0, i B = +I m ,    B   1 A 2 ,       2  1   4 3 4 T t  , i A = -I m , i B = 0 ,    B   1 B 2 ,       2  1     1/2   ,        B    1/2 .                90 0   ,  90 0            . 5.4.2       1    hai pha: a. đô ̣ ng cơ không đô ̀ ng bô ̣ 1           ,                             ,      .            .   ,           .                     . 1          b)       1         :            ,                                (     ,).  ,                               .         75%       ,          ,       ,             . 1          c)        1                   :              ,              ,       ,                .     ,        (C LV + C  )     ,            ,          ),      75%                  ,   ,   hai pha. d)       1     : ,          1/4 , 1/3 HP,               ,           ,        30 0 -45 0 .                . 1     e) :               ,            ,                ,   .          ,         1/3     ,          .                    ,             .    :          1          .                        stator                          . 1                    ,       ,    ,              ,           . 5.5         :          1                 ,    . 5.6        1 PHA HAI       :    ,                             110V/220V,  6  ,    4       2 m.        110V  ,  220             . .       1    hai pha: a. đô ̣ ng cơ không đô ̀ ng bô ̣ 1          .        1        50%  3 pha.      1    1              .