The　issue　of　DC　fault　ride-through　can　now　be　resolved　in　a　novel　way　thanks　to　flexible　current　limiting　technology,　but　its　practical　worth　cannot　be　realized　due　to　flaws　in　the　technology.　This　study　examines　the　placement　of　a　controlled　current　source　on　the　secondary　side　of　a　current　limiting　inductor　and　the　enhancement　of　clamping　voltage　stability　on　the　primary　side　of　a　current　limiting　inductor　from　the　standpoint　of　controlling　flexible　current　limiting　technology.　It　offers　a　theoretical　foundation　for　the　specified　secondaryside　controlled　source　through　an　analysis　of　the　iron　core＇s　inductance　properties.　Two-degree-of-freedom　algorithm　and　model　predictive　control　are　combined　in　a　control　strategy　that　is　appropriate　for　flexible　current　limiting　devices　to　address　the　issue　of　inadequate　response　time　and　control　accuracy　under　standard　control.　In　MATLAB/Simulink　simulation　software,　the　presented　theory＇s　soundness　is　lastly　confirmed.