Abstract：With the rapid development of the society and economy and the accelerated construction of new

power systems，flexible interconnection has gradually become an important technical means for upgrading the

structure and enhancing the flexible regulation ability of distribution network. A power coordinated control strategy

for engineering applications was proposed to address the power control requirements of multi-terminal flexible

interconnection systems，including heavy-load limiting control for the rational power distribution when some feeder

lines were heavy-loaded，and power balance control for power flow optimization distribution when all feeders were

heavy-loaded. A flexible interconnection coordinated control device was developed based on the proposed strategy

and applied to practical engineering. The case analysis based on the real load data and the measured data of the

project verify that the proposed strategy can deal with different flexible interconnection scenarios with different

load/power characteristics，effectively solve the problems of unbalanced feeder load and reverse PV power flow in

the distribution network，and improve the power supply efficiency and security.

      Key words：distribution network；flexible interconnection；coordinated control；heavy-load limiting；power

balance