Publication

Event-triggered partitioning for non-centralized predictive-control-based economic dispatch of interconnected microgrids

Journal Article (2021)

Journal

Automatica

Pages

109829

Volume

132

Doc link

https://doi.org/10.1016/j.automatica.2021.109829

File

Download the digital copy of the doc pdf document

Abstract

A non-centralized model predictive control (MPC) scheme for solving an economic dispatch problem of electrical networks is proposed in this paper. The scheme consists of two parts. The first part is an event-triggered repartitioning method that splits the network into a fixed number of non-overlapping sub-systems (microgrids). The objective of the repartitioning procedure is to obtain self-sufficient microgrids, i.e., those that can meet their local loads using their own generation units. However, since the algorithm does not guarantee that all the resulting microgrids are self-sufficient, the microgrids that are not self-sufficient must then form a coalition with some of their neighboring microgrids. This process becomes the second part of the scheme. By performing the coalition formation, we can decompose the economic dispatch problem of the network into coalition-based
sub-problems such that each subproblem is feasible. Furthermore, we also show that the solution obtained by solving the coalition-based sub-problems is a feasible but sub-optimal solution to the centralized problem. Additionally, some numerical simulations are also carried out to show the effectiveness of the proposed method.

Categories

automation, control theory, optimisation.

Author keywords

complex system management, large-scale complex systems, system partitioning, control of networks, decentralisation, real time simulation and dispatching, non-centralized MPC

Scientific reference

W. Ananduta and C. Ocampo-Martínez. Event-triggered partitioning for non-centralized predictive-control-based economic dispatch of interconnected microgrids. Automatica, 132: 109829, 2021.