Optimal Power Dispatch of Small-Scale Standalone Microgrid Located in Colombian Territory

Abstract

An optimal power dispatch of a small-scale standalone microgrid for remote area power supply in Colombian territory is proposed in this paper. The power dispatch is generated by an energy management system based on a mixed-integer linear programming, which minimizes the cost of operating the microgrid while fulfilling the technical constraints of its elements. The energy management system solves an optimization problem using the algebraic representation of the generators and its constraints. Basic steady-state models of the generators are selected to solve the optimization problem. The small-scale microgrid is considered for a remote area power supply in Taroa, a small settlement in La Guajira, Colombia. The microgrid is composed of photovoltaic modules, a wind generator, a diesel generator, a battery bank, and residential loads. To validate the solution, the elements of the microgrids are parameterized with information from commercial equipment. Moreover, the power dispatch obtained with the proposed solution is compared with a power dispatch generated by a heuristic algorithm, which has been previously used to dispatch power in a small-scale standalone microgrid. Results show that the cost of operating the microgrid is minimized using the proposed optimization approach: a reduction of the operating cost equal to 25.5% of the cost imposed by the heuristic algorithm is obtained.

Optimal Power and Battery Storage Dispatch Architecture for Microgrids: Implementation in a Campus Microgrid

“…On the other hand, most of the current developments for optimal dispatch and power management in microgrids only consider simulation testing of the proposed control systems, as in [6,21,22]. Only few works are experimentally implemented on physical microgrids, as current proposals are mainly focused on laboratory-scale grids with simulated devices [23,24], with some works emphasizing on the energy management and generation/load forecast of real-time simulated isolated grids [25], and even recent mobile-clustered hybrid energy system developments with an integrated power control as in [26].…”

Dynamic Economic Dispatch Model of Microgrid Containing Energy Storage Components Based on a Variant of NSGA-II Algorithm

“…In order to achieve the economic operation of microgrid, scholars at home and abroad have done a lot of research. Reference [2][3][4][5][6] establishes an optimization model aiming at maximizing the profit of the system. Reference [7][8][9][10][11] synthetically considers the operation cost and emission cost of microgrid, and establishes a multi-objective optimization model to minimize the economic cost and emission of microgrid.…”