Sub-Synchronous Control Interaction in a Utility-Scale Solar PV Plant: First evidence and countermeasures in Vietnam’s Power Grid
Rapid decarbonisation is increasing the share of inverter-based resources (IBRs) in Vietnam’s power system. By end-2025, renewables reached about 23 GW (~26.5% of installed capacity), including utility-scale plants connected at 500 kV into weakly meshed 220/110 kV networks.