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                                                            Power electronic control in electrical systems 309





























































                      Fig. 8.23 SVC characteristic waveforms in open-loop mode: (a) voltage V load at the load point; (b) voltage V L
                      at the SVC inductor; (c) current I L through the SVC inductor; (d) voltage V C through the SVC capacitor;
                      (e) current I C through the SVC capacitor; and (f) total current I SVC through the SVC.

                      is in open-loop mode, the currents and voltages in the SVC decrease in response to an
                      increase in load. However, after a small transient period, the current I SVC recovers to
                      the same wave shape that it had before the load change at t ˆ 0:6 s. On the other
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