For　the　first　time,　a　single　flux　linkage　closed-loop　control　scheme　for　contactors　using　fast　excitation　control　is　proposed.　The　integrated　observer　and　closed-loop　state　observer　are　designed　to　observe　the　flux　linkage　during　the　making　and　closing　processes,　respectively.　After　the　contactor　finishes　the　making　and　closing　processes　under　the　initial　flux　linkage　control,　it　enters　a　self-correcting　process　that　involves　decreasing　the　flux　linkage　step　by　step.　Two　observers　are　used　interchangeably　to　ensure　the　accuracy　of　flux　linkage　observation　in　this　process;　once　the　decrease　in　flux　linkage　becomes　insufficient　for　maintaining　the　contactor　in　the　closing　state,　the　movable　core　separation　signal　is　captured　in　time,　and　the　critical　flux　linkage　is　determined　based　on　the　flux　linkage　jump　of　the　closed-loop　state　observer.　Then,　the　fast　response　of　the　single　flux　linkage　closed-loop　control　can　ensure　the　timely　application　of　short-time　and　intense　excitation　and　prevent　the　continued　rebound　of　the　movable　core　before　contactor　separation.　Comprehensive　use　of　the　above　methods　enables　the　development　of　the　self-correcting　control　strategy　of　a　single　flux　linkage　closed　loop　for　a　contactor.　This　result　is　of　great　significance　for　automatic　bouncing　inhibition　and　energy-saving　optimization　of　contactors.　©　1982-2012　IEEE.