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In this paper, a new objective function (OF) within the genetic algorithm (GA) approach is presented to solve the optimization problem of coordination of overcurrent and distance relays. The existing objective function of overcurrent (O/C) relays coordination is improved and extended to include the coordination of O/C and distance relays. Various O/C relays characteristics are considered within the...
The connecting of distributed generation (DG) to distribution network has numerous advantages. However, the presence of these sources leads distribution networks to lose their radial nature. Some problems in coordination of protection devices will occur, due to changes in short circuit levels in different points. In this paper, the effect of size and location of DGs on overcurrent relay coordination...
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