Abstract
Despite many advantages of distributed generation (DG) sources, they may have a negative effect on the
protection of distribution systems. In a distribution system, fuse-recloser protection scheme is designed such that the
recloser could operate faster than the fuse to prevent fuse burning; but, the presence of DGs in fault conditions may
lead to increased fuse current and thus faster performance of the fuse than the recloser and lack of coordination. In this
paper, effect of DGs on fuse-recloser coordination was studied using analytical relations and simulation. A useful
control method was presented for reducing the effect of DG on fuse-recloser coordination. Accordingly, direction of
DG current was changed by controlling DG reactive power at the fault time, which reduced the fuse current. Results of
the simulation on IEEE 13-bus system showed that the proposed control method was able to remove the negative effect
of DG on fuse-recloser coordination.