Simultaneous placement and sizing of DGs and shunt capacitors in distribution systems by using IMDE algorithm

• A new optimization algorithm is used for DGs and capacitors placement and sizing.
• The coordinated design is based on reducing power losses and loss expenses.
• The proposed algorithm has a higher convergence speed.
• Two IEEE standard distribution systems are used in simulation results.
• The analytical analysis and simulations confirm the advantages of this method.

This paper presents a new optimization algorithm, named intersect mutation differential evolution (IMDE) to optimally locate and to determine the size of DGs and capacitors in distribution networks simultaneously. The objective function is taken to minimize the power loss and loss expenses providing that the bus voltage and line current remain in their limits. Simulation results on IEEE 33-bus and 69-bus standard distribution systems show the efficiency and the superior performance of the proposed method when it is compared with other algorithms.