A combined dq-MIMO and sequence-SISO impedance-based stability assessment scheme for IBR interfaced system
The electromagnetic transient (EMT)-type impedance scanning methods conducted in positive sequence domain and dq-frame (p-scan and dq-scan, respectively) have been widely used for identifying inverter-based resource (IBR) instabilities.They obtain the sequence domain single-input single-output (sequence-SISO) and dq-frame multi-input multi-output (