Dynamic Virtual Admittance Control
AC-DC system stability control
The proposed solution consists in a HVDC control scheme which dynamically computes the necessary power references for each station of a HVDC link (or grid), allowing to improve the rotor angle stability of the AC grid by damping electro-mechanical oscillations, enlarge transient stability margins and ensuring the synchronization of two AC interconnected networks. It is fully applicable to VSCHVDC (MMC technology), and possibly also to LCC-HVDC.
- Easy implementation
- Applicable for power oscillation damping as well as synchronizing torque (DVAC provides both inter-area oscillations damping and transient stability enhancement)
- Enhancement of AC transient stability using HVDC
Patent appl. FR1852136 and FR1853273