Page 315 - Power Electronic Control in Electrical Systems

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Power electronic control in electrical systems 303

Fig. 8.14 Test system implemented to carry out time domain analysis ofthe SVC.

Fig. 8.15 (a) SVC capacitance and inductances values; and (b) characteristic plot Q SVC (a).

power required by Load 2, the SVC is sized with enough capacity to supply at least
this reactive power in order to drive the voltage V bus back to the reference, that is
Q SVC > 800 MVAr (8:2)

In this example, the maximum reactive capacity of the SVC is set at Q SVC ˆ
840 MVAr. The values for the capacitance and the TCR inductance are then calcu-
lated based on this setting.
With reference to Figure 8.15(a)
(V bus ) 2 (13:8 kV) 2
X C ˆ ˆ ˆ 0:226714
(8:3)
Q SVC 840 MVAr
and
X C
X L ˆ (8:4)
2