Power Quality Control and Design of Power Converter for Variable-Speed Wind Energy Conversion System with Permanent-Magnet Synchronous Generator

Table 1

THD rates of IGBT-PWM power converter according to switching frequency values.

Switching frequency	THD𝑣 (%)	THD𝑖 (%)	THD𝑔 (%)
1 kHz	90.75	36.66	36.47
2 kHz	67.14	1.17	1.05
3 kHz	67.5	0.58	0.36
4 kHz	1.63	0.57	0.29
4.5 kHz	1.71	0.5	0.27
4.6 kHz	1.58	0.58	0.28
5 kHz	1.62	0.59	0.29
6 kHz	1.65	0.61	0.31
7 kHz	1.69	0.57	0.33
8 kHz	1.68	0.59	0.32
10 kHz	1.97	0.67	0.48
15 kHz	1.741	0.55	0.50
20 kHz	2.03	0.69	0.52