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Mathematical Problems in Engineering
Volume 2017, Article ID 4083132, 9 pages
https://doi.org/10.1155/2017/4083132
Research Article

Energy Storage System Control for Energy Management in Advanced Aeronautic Applications

Department of Industrial and Information Engineering, Second University of Napoli, 81031 Aversa, Italy

Correspondence should be addressed to A. Cavallo; ti.2aninu@ollavac.otrebla

Received 2 December 2016; Accepted 5 April 2017; Published 19 April 2017

Academic Editor: Ilhan Tuzcu

Copyright © 2017 A. Cavallo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this paper an issue related to electric energy management on board an aircraft is considered. A battery pack is connected to a high-voltage bus through a controlled Battery Charge/Discharge Unit (BCDU) that makes the overall behaviour of the battery “intelligent.” Specifically, when the aeronautic generator feeding the high-voltage bus has enough energy the battery is kept under charge, while if more loads are connected to the bus, so that the overload capacity of the generator is exceeded, the battery “helps” the generator by releasing its stored energy. The core of the application is a robust, supervised control strategy for the BCDU that automatically reverts the flow of power in the battery, when needed. Robustness is guaranteed by a low-level high gain control strategy. Switching from full-charge mode (i.e., when the battery absorbs power from the generator) to generator mode (i.e., when the battery pumps energy on the high-voltage bus) is imposed by a high-level supervisor. Different from previous approaches, mathematical proofs of stability are given for the controlled system. A switching implementation using a finite-time convergent controller is also proposed. The effectiveness of the proposed strategy is shown by detailed simulations in Matlab/Stateflow/SimPowerSystem.