Multiple Dispersed Generation Allocation using Analytical Approach

Abstract

The extent of this study is to evolve a new analytical approach to determine optimal sizing and siting of distributed generation (DG) unit(s) within a power distribution network considering the power loss minimization. The developed analytical model is based on curtailing the real and reactive power losses with respective branch components of currents by allocating the DGs at discrete places. The proposed method first, sequentially recognizes the possible nodes, where DGs can be sited. Afterwards, the best DG sizes are estimated using the expressions of loss saving for active and reactive DG's components. In order to find out, the optimal locations for DG placement a computational algorithm is developed. Moreover, analytical expressions have been derived and formulated considering three cases for power loss minimization and voltage profile improvement with and without integration of DGs. The IEEE 69-test distribution network is used to test and validated the method. Results of each case are compared and demonstrated the best case for highest loss saving obtained by DG unit's allocations in the system.