Optimization Design of a New Type of Interior Permanent Magnet Generator for Electric Vehicle Range Extender

Table 5

Variance and proportion of the performance indices of each parameter under 4 level factors.

Parameters	SKr		ST		SG
	Variance	Proportion (%)	Variance	Proportion (%)	Variance	Proportion (%)
hmT	0.396	0.85	0.0210	23.28	0.0016	16.50
bmT	24.760	53.65	0.0180	19.96	0.0053	54.64
hmQ	20.743	45.00	0.0490	54.32	0.0020	20.62
bmQ	0.116	0.35	0.0003	0.33	0.00005	0.51
b	0.072	0.15	0.0019	2.11	0.00075	7.73
Total	46.087	100	0.0902	100	0.00970	100