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Enhanced current reference generation for PMSG-based wind systems using modified delayed signal cancellation
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DOI：10.1016/j.egyr.2026.109185.png)
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Abstract
En 中文
• A simplified reference current generation method removes dual‑vector control and PLLs in PMSG converters under unbalanced grids. • A modified delayed signal cancellation (MDSC) method separates positive and negative sequences with fast response. • The method reduces double‑frequency oscillations in power, grid current, and DC‑link voltage during grid faults. • MATLAB/Simulink simulations of a PMSG confirm improved stability and lower DC‑link voltage ripple under voltage sags. • The approach uses simple PI controllers and an analytical term, enabling low‑complexity real‑time implementation.
Keywords:
Negative-sequence currents
PMSG system
Power system stability
Unbalanced grid voltage
Voltage drop
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