“…When the excitation voltage in Equation () is changed by Δ e f , n , the first derivative dP e , i / dt of active power output changes at once
8 . Previous studies
12,13 dealing with emergency control of renewable energy generators were focused on the fact that converter output fluctuations caused immediate changes in the active power output of synchronous generators; thus, control rules were formulated using
COI , CM as an index. In contrast, the present study deals with excitation voltage control in synchronous generators and proposes control rules formulated using ω ̈ COI , CM as an index, considering that excitation voltage has an immediate effect on the first derivative of active power output, as mentioned above.…”