PLL Instability of Wind Turbines During Severe Faults

• Published in: IEEE access Vol. 10; pp. 4495 - 4505
• Main Authors: Arasteh, Amir, Cutululis, Nicolaos A.
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 2022; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Adaptive-PLL; Circuit faults; estimated impedance value; Europe; grid following wind turbines; Impedance; Logic circuits; loss of synchronisation; Phase locked loops; PLL instability; Power system stability; severe faults; Stability; Stability analysis; Synchronism; Synchronization; Transient analysis; Wind turbines

Stringent grid codes require wind turbines (WTs) to remain connected even during severe faults. This can result in PLL instability and Loss of Synchronisation (LoS), which is the main subject of this paper. For a better understanding, the phenomenon is analysed in the dq equivalence. The presented a...