Optimal location and sizing of distributed generation based on power losses and voltage deviation

This work aims at the optimal location and sizing of distributed generation (DG) in distribution feeders. An objective function which evaluates the active power losses of the system coupled with a penalty for voltage deviation in each bus is used. In this way, the following are considered: the equality and inequality constraints concerning the power flow, total apparent power of DG, number of installed DGs, fixed or variable power factor and voltage limits. To this end, a nonlinear programming model with discontinuous derivatives, which employs binary variables to define the location of the generation through a classical optimization approach is implemented.