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.
Transient stability analysis of grid-following converters with dc-link voltage control consid- ering bidirectional power flow,
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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.