as the interactivity,integrality and instantaneity of data communication in smart substation have been improved to higher levels,and it can contribute to promote the realization of substation area backup protection (SABP),which may carry out a function of integrated protection for whole substation.On the side,in the case that fault current limiters (FCLs) are employed for suppressing short-currents to lower degrees where circuit-breakers can interrupt more effectively,the study of the coordination between SABP and FCLs is undoubtedly meaningful and valuable.In this paper,according to a flux-coupling type superconducting fault current limiter (SFCL) proposed by us previously,its integrated application into a real 220kV smart substation with centralized type SABPs is investigated.The technical characteristics of the SFCL and the SABP are conducted firstly,and then assuming that the SFCL can be installed into a smart substation’s different locations,a feasible design strategy for the SABP-SFCL communication network directly affecting both performances is given.Further,regarding a specific SABP-SFCL communication network built for the 220kV smart substation,taken into account the protection algorithm and the SFCL’s current-limiting mechanism,the action coordination between them is presented.From the simulation results,the coordination mode’s validity can be preliminarily confirmed.