Reconfiguration of electricity distribution networks operating at different levels of demand

• Grant number: 18/07387-1
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: August 01, 2018
• End date: July 31, 2019
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Principal Investigator: Marcos Julio Rider Flores
• Grantee: Lucas Zenichi Terada
• Host Institution: Faculdade de Engenharia Elétrica e de Computação (FEEC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

The reconfiguration of electricity distribution networks determines the switches operation state in order to minimize operating costs of the distribution system. Additionally, the final topology of the reconfiguration must ensure that be respected the system operational constraints, in other words, the voltage magnitude limits in nodes, the current magnitude limits in branches, the capacities of the feeders and the radial operation of the distribution networks. This scientific research work aims to develop a methodology based on a mathematical model of mixed-integer linear programming (MILP) to solve the problem of electricity distribution networks reconfiguration. The proposed methodology uses linearization techniques to obtain a MILP model with a good approximation of mixed-integer nonlinear programming model (MINLP) original. A MILP model has the following benefits: (a) a robust mathematical model, generic and flexible; (b) an effective solution using commercial computational solvers; and (c) the convergence to the optimal solution is guaranteed using classical optimization techniques. The proposed model will be implemented in the mathematical modeling language AMPL and solved using the commercial solver CPLEX (AU)