Thank you Harinath Vudumula.

1. my design is run as 2 modes

 mode 1:  motor mode ( for the begining) the voltage input is 380 Vac

mode 2: generator mode (after achive the speed) (full load voltage 380 Vac, 48A, 30Kw)

so the Vpeak here is 380 Vac, is it correct? (Vpeak is the phase voltage or line voltage)

3.  connect the coil in the star It depends on the ecxitation type ? because i do not see any winding in the set up Y connection in excitation type of current ( when i simulation no load condition), only ecxitation type as voltage just need this setting?

thank you so much