In this work, a new algorithm for the multiobjective optimization of low and medium voltage electrical grids and microgrids is proposed. The originally nonlinear planning model is linearized using the economic current density concept, and the errors from the linearization are corrected by means of comparisons with load flow calculations in an iterative routine.
This linearization adjustment allows for the calculation of the Pareto optimal solutions without having to solve the nonlinear model directly using techniques that may present convergence problems.
The proposed algorithm is developed as a method for the optimal design and tertiary control of low and medium voltage grids and microgrids, allowing the calculation of the optimal power generation and the most efficient grid configuration.
Key words: Optimization, linear, Pareto, planning, microgrid, tertiary control, load flow.
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