Integration of inverter-based resources(IBRs)reshapes conventional power swing patterns,challenging the operation of legacy power swing protec-tion schemes.This paper highlights the significant con-sequences of the di...Integration of inverter-based resources(IBRs)reshapes conventional power swing patterns,challenging the operation of legacy power swing protec-tion schemes.This paper highlights the significant con-sequences of the distinctive power swing patterns exhib-ited by grid-forming IBRs(GFM-IBRs).The swing mechanism involving GFM-IBRs is elucidated using an-alytical modeling of GFM-IBRs with various power syn-chronization loops(PSLs).With varying GFM-IBR pen-etration levels and different generator scenarios,the per-formance of power swing protection functions is examined,including power swing blocking(PSB)and out-of-step tripping(OST).Additionally,the IEEE PSRC D29 test system is employed to present power swing protection results in a large-scale power system integrated with synchronous generators(SGs)and IBRs.The results in-dicate that,GFM-IBRs with sufficient voltage support capability can provide positive impact on power swing dynamics,and power swing protection performance can be enhanced by emulating the inertia and droop mecha-nism of SGs and rapidly adjusting the active power output.However,with high penetration levels of GFM-IBRs,OST maloperation may occur in scenarios with inadequate voltage support capability.展开更多
基金supported by the Hong Kong Research Grant Council for the Research Project(No.15229421)the PolyU Presidential PhD Fellowship Scheme。
文摘Integration of inverter-based resources(IBRs)reshapes conventional power swing patterns,challenging the operation of legacy power swing protec-tion schemes.This paper highlights the significant con-sequences of the distinctive power swing patterns exhib-ited by grid-forming IBRs(GFM-IBRs).The swing mechanism involving GFM-IBRs is elucidated using an-alytical modeling of GFM-IBRs with various power syn-chronization loops(PSLs).With varying GFM-IBR pen-etration levels and different generator scenarios,the per-formance of power swing protection functions is examined,including power swing blocking(PSB)and out-of-step tripping(OST).Additionally,the IEEE PSRC D29 test system is employed to present power swing protection results in a large-scale power system integrated with synchronous generators(SGs)and IBRs.The results in-dicate that,GFM-IBRs with sufficient voltage support capability can provide positive impact on power swing dynamics,and power swing protection performance can be enhanced by emulating the inertia and droop mecha-nism of SGs and rapidly adjusting the active power output.However,with high penetration levels of GFM-IBRs,OST maloperation may occur in scenarios with inadequate voltage support capability.
