Environmental Engineering Reference
In-Depth Information
Fig. 3.6
u
dc
in load current
change
Fig. 3.7 e
a
and i
a
in load
current change
s
d
¼
u
d
=
u
dc
ð
3
:
45a
Þ
s
q
¼
u
q
=
u
dc
ð
3
:
45b
Þ
3.6 Simulations
The parameters of the gird-side PWM converter are given as follows [
25
]:
E
m
¼
220
p
ð
V
Þ
, L = 0.006(H), R = 0.5(X), C = 0.00136(F), u
dc
¼
600
ð
V
Þ
,
f = 50 (HZ).
To prove the validity and advantages of the new control strategy, the results are
compared between the high-order TSM control strategy and the traditional PI
control strategy. In order to illustrate the fast error convergence and strong
robustness of the new control strategy, the results under different cases are given,
such as step changes in the load currents and step changes in the source voltages.
2
