Doubly-Fed System (Physics)：1. Typical power rating: 1.0MW, 1.5MW, 2MW, 2.5MW, 3MW; 2. Typical circuit topology: a) back-to-back dual pwm; b) optional: crowbar, chopper; 3. Advantages:a) the converter power is about 30% of the turbine power; b) the technology is mature and low cost; direct-drive system
Direct Drive System：1. Typical power rating: 1.5MW, 2MW, 2.5MW, 5MW; 2. Typical circuit topology: a) back-to-back dual pwm; b) optional: crowbar, chopper; 3. Advantages: a) elimination of gearbox; b) high efficiency of the whole machine;
全部電壓
1700V
1200V
1000V
750V
650V
600V
全部電流
1400A
1200A
1000A
900A
820A
800A
750A
720A
660A
650A
600A
560A
500A
450A
400A
340A
300A
275A
260A
225A
200A
160A
150A
140A
120A
100A
75A
50A
40A
35A
30A
25A
20A
15A
10A
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全部封裝
C1
C2
C2.1
C3
C3.2
C5
C6
C6.1
C8
C8.1
L2
L3
L4
L6
F1
F6
P2
P3
P6
P7
T2
T6
N4
N5
N6
U1
U3
U5
