Performance Analysis and Optimization of Built-In Permanent Magnet and Salient-Pole Electromagnetic Hybrid Excitation Generators for Vehicles

Table 4

Optimization parameters and their value range.

Parameter	Parameter value	Parameter	Parameter value
Turns of armature winding	6 mm	Main air gap	0.4 mm
Width of stator notch	2.6 mm	Rotor eccentricity	15 mm
Width of stator slot	6.2 mm	Pole-arc coefficient	0.82
Outer length of semicircular annular PM steel	1 mm	Width of rectangular PM steel	4 mm
The thickness of semicircular annular PM steel	2 mm	Length of rectangular PM steel	12 mm
The inner diameter of semicircular annular PM steel	2.7 mm	The inclination angle of rectangular PM steel	56