In order to ensure that the automotive generator can meet the power supply requirements under different operating conditions of the vehicle, the influence of the parameters of the automotive AC generator stator assembly on the rated power and output characteristics of the generator was analyzed and verified. The results show that, under the condition of stator core size specifications unchanged, the rated power can be increased without changing the slot filling rate and reducing the number of turns, but the output power can be reduced under low-speed conditions. Changing from star connection to triangle connection or adding a neutral point can increase the rated power without changing the low-speed output power. Changing the three-phase armature winding to six phases hardly affects the rated power and output characteristics, but can reduce the ripple peak value of the output current.

Automobile alternator  /  Output characteristics  /  Stator assembly  /  Armature winding