ELECTRICA

ELIMINATING NEGETIVE EFFECT OF INVERTER-BASED DGs ON FUSE-RECLOSER COORDINATION IN DISTRIBUTION SYSTEMS

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Lorestan University, Faculty of Electrical Engineering, Khorramabad, Iran

ELECTRICA 2015; 15: 1921-1927
Read: 579 Downloads: 392 Published: 01 December 2015

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

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EISSN 2619-9831