Sequence Impedance Measurement of Utility-Scale Wind Turbines and Inverters - Reference Frame, Frequency Coupling, and MIMO/SISO Forms

• Published in: IEEE transactions on energy conversion Vol. 37; no. 1; pp. 75 - 86
• Main Authors: Shah, Shahil, Koralewicz, Przemyslaw, Gevorgian, Vahan, Wallen, Robb
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.03.2022; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: control interactions; Converters; Coupling; Couplings; dq impedance; Frequency measurement; Impedance; Impedance measurement; Inverters; Measurement methods; resonance; Resonant frequencies; sequence impedance; Stability analysis; subsynchronous oscillations; Voltage measurement; Wind turbines

Sequence impedance responses are increasingly used for the stability analysis of converter-grid systems; however, many aspects of the sequence impedance measurement process, particularly those resulting from the frequency coupling between the positive- and negative-sequence impedances, are not yet f...