Research Article
Voltage Stability Bifurcation Analysis for AC/DC Systems with VSC-HVDC
Table 1
System parameters of operation and control modes of VSC-HVDC.
| Operation modes | Control parameters of VSC converters (p.u.) | | |
| 1 | Constant DC voltage | Constant AC active power | Constant AC reactive power | Constant AC reactive power |
| 2 | Constant DC voltage | Constant AC active power | Constant AC reactive power | Constant AC voltage |
| 3 | Constant DC voltage | Constant AC active power | Constant AC voltage | Constant AC reactive power |
| 4 | Constant DC voltage | Constant AC active power | Constant AC voltage | Constant AC voltage |
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