SPECIALIZED TABU SEARCH ALGORITHM APPLIED TO SECONDARY DISTRIBUTION SYSTEMS PLANNING SPECIALIZED TABU SEARCH ALGORITHM APPLIED TO SECONDARY DISTRIBUTION SYSTEMS PLANNING

Abstract

To solve the problem of secondary distribution systems planning, this paper proposes a methodology using a tabu search algorithm as a solution technique. The problem is formulated as a nonlinear mixed-integer model, which takes into account the location and capacity of new elements (distribution transformers and primary-secondary distribution networks), relocation of existing distribution transformers, increasing the capacity of existing elements, secondary network reconfiguration, and phase balance. It also considers the costs associated with connections between primary and secondary networks and energy losses in distribution transformers. The methodology is applied to two test cases: in the first, a comparative analysis with the Chu-Besley genetic algorithm is made to verify the efficiency of the proposed methodology; and in the second, the results are analyzed in a Colombian distribution system. In both cases, the results are of high quality, supporting the proposed methodology.