Introduction - Control of Power Inverters in Renewable Energy and Smart Grid Integration - page 13

i o +

Q 1 Q 3 Q 5

v a

~

i a

L a

v b

~ C

v o

i b

L b

v c

~

i c

L c

Q 4 Q 6 Q 2

-

(a) Topology

5 π /6

-

sin( ω t-2 π /3)

sin

v ab

sin(ωt)

sin

STA

ω t+ /6

π

Q 1

-

π /6 Hysteresis

Controller

×

Q 4

-

i a

-

Q 5

v oref

Hysteresis
Controller

PI

Q 2

-

-

-

v o

i c

Q 3

Hysteresis
Controller

-

×

Q 6

-

i b

(b) Basic control strategy

v a v b v c

i a i b i c

0 π 2 π 3 π 4 π 0 π 2 π 3 π 4 π

ω t/rad ω t/rad

(c) Input voltage and current (d) Output voltage

Figure 1.13 PWM-controlled three-phase full-bridge rectifier