The bandwidth separation method shows that PLL-DVC interaction degrades transient stability in grid-following inverters by shrinking the stability region, often due to voltage instability rather than PLL desynchronization alone, with optimal bandwidth choices depending on fault type.
Optimal controller design for transient stability enhancement of grid-following converters under weak-grid conditions,
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Consideration of Control-Loop Interaction in Transient Stability of Grid-Following Inverters using Bandwidth Separation Method
The bandwidth separation method shows that PLL-DVC interaction degrades transient stability in grid-following inverters by shrinking the stability region, often due to voltage instability rather than PLL desynchronization alone, with optimal bandwidth choices depending on fault type.