New optimization method considering combinatorial and multi-objective optimization problem for distribution systems

This paper proposes a new optimization method for distribution system, that method includes combinational problem (CP) as factor in multi-objective optimization problem (MOOP). Increasing load demands and deep penetration of distributed generators (DGs) using renewable energy sources (RESs) has been a cause of concern to protect the smart grid. System. As a t, it causes voltage deviation and reverses power flow. In order to solve these problem, protection devices have to be installed in distribution system. However, it is necessary to consider multi objects to realize safety system, generally these objects are also conflicting with each other. Moreover, it is also important problem to calculate operating cost and finding optimal placement of control devices. This proposed method provides an application for distribution system.