Page 370 - Power Electronic Control in Electrical Systems

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Power electronic control in electrical systems 351

Fig. 8.69 Reactive components in the rotating frame: (a) load current I load d ; (b) source current I S d ; and (c)
converter current I VSC d .

priate filter at the VSC output terminals. However, for the purpose of this example
filtering has not been included.
Figure 8.71 shows the current through the DC link capacitor, I DC . The current I DC
has the typical pattern for the case of lagging power factor compensation. When the
compensation is for a leading power factor the orientation of the waveform is in the
opposite direction. It shows low current harmonic distortion that is reflected in the

Fig. 8.70 DC link voltage V DC .