A Novel SHMPWM Technique for Sensorless Control in High-Power PMSM

Table 2

The comparison of the simulation harmonic content under different modulation technique.

Harmonic order	SHEMPWM (%)	SHMPWM (%) (Newton-Raphson method)	SHMPWM (%) (optimization method)
5	0.49	6.19	5.85
7	0.20	4.82	4.88
11	0.14	3.31	3.38
13	0.11	3.18	2.93
17	13.72	21.78	9.84
19	24.08	1.51	5.32
23	27.31	4.62	12.91
25	2.26	21.80	18.00
29	1.27	7.15	10.14
31	1.61	6.77	5.87
35	5.25	7.97	5.48
37	8.60	0.43	5.55
41	2.54	1.69	8.36
43	4.97	1.84	8.46
47	1.44	0.31	0.28
49	7.03	0.19	2.78
	41.32	34.97	32.06