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A consideration of stable operating power limits in VSC-HVDC systems

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4 Author(s)
Konishi, H. ; Res. Lab., Hitachi Ltd., Japan ; Takahashi, C. ; Kishibe, H. ; Sato, H.

The stable operating-power limits of a small scale HVDC system composed of voltage source converters (VSC-HVDC system) are analyzed with a simple model. The VSC-HVDC system could operate where the AC system must be somewhat larger in capacity than the VSC-HVDC system capacity. The stable operating power limits were between one and two times the SCR (short circuit ratio). When the inverter of the VSC-HVDC system was operated with lead reactive (capacitive) power control conditions, the stable operating limits were increased through AC voltage stabilization. If there were loads near the inverter, the VSC-HVDC system could transmit a little bit larger power than those without loads.

Published in:

AC-DC Power Transmission, 2001. Seventh International Conference on (Conf. Publ. No. 485)

Date of Conference:

28-30 Nov. 2001