Interline power flow controller（IPFC）

as a powerful flexible alternating-current transmission system（FACTS） device

can dynamically control active power

reactive power

voltages

impedances and power angles of transfer lines in the system

perform the flow control of the line with any phase angle relations and different system and improve operation stability level.During the "14 th Five-Year" period

with integrations of large-scale wind power

photovoltaic and other new energy generations

power flow in Jiangsu power grid will be shown as "from north to south" trend.In case of big outputs of new energy in winter

partial 500 kV line cannot meet N-1

N-2 calibration due to uneven power distribution of power transmission channel across Yangtze-river.Therefore

applic ation scenarios of IPFC in Jiangsu power system is studied in this paper and it is proposed that IPFC devices are installed in the two selected transmission channels

coordinated to control the power flow in these channels and improved the power flow transfer capacity of the across-Yangtze-river transmission section.Later on

under different operation conditions

capacities and system-level control strategies of IPFC devices are fully evaluated and optimized afterwards

considering their comprehensive regulation capacities.