Three phase full converter drive

The circuit diagram of one three phase full converter in the armature circuit and 1 phase full converter in the field circuit, is as shown in figure.

Three phase full converter dc drive

For converter 1 in the armature circuit, the average output voltage from given by, 

                                V=  Vt =  3Vml/2∏  * Cos  ɖ  for 0<  ɖ <  ∏


For converter 2 in the field circuit,

                                    Vf =  3Vml/2∏  * Cos ɖ1  for 0< ɖ1  <  ∏ 

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