Optimal energy dispatch in a smart micro-grid system using economic model predictive control
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hdl:2117/124975
Tipus de documentArticle
Data publicació2020-01-01
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Abstract
The problem of energy dispatch in heterogeneous complex systems such as smart grids cannot be efficiently addressed using classical control or ad-hoc methods. This paper discusses the application of Economic Model Predictive Control (EMPC) to the management of a smart micro-grid system connected to an electrical power grid. The considered system is composed of several subsystems, namely some photovoltaic (PV) panels, a wind generator, a hydroelectric generator, a diesel generator, and some storage devices (batteries). The batteries are charged with the energy from the PV panels, wind and hydroelectric generators, and they are discharged whenever the generators produce less energy than needed. The subsystems are interconnected via a DC Bus, from which load demands are satisfied. Modeling smart grids components is based on the generalized flow-based networked systems paradigm, and assuming energy generators to be stable, load demands and energy prices are known. This study shows that EMPC is economically superior to a two-layer hierarchical MPC.
CitacióNassourou, M., Blesa, J., Puig, V. Optimal energy dispatch in a smart micro-grid system using economic model predictive control. "Proceedings of the Institution of Mechanical Engineers. Part I, journal of systems and control", Vol. 234, No 1, pp.: 96-106
ISSN0959-6518
Versió de l'editorhttp://journals.sagepub.com/doi/10.1177/0959651818786376
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