Journal
CONTROL ENGINEERING PRACTICE
Volume 73, Issue -, Pages 161-170Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.conengprac.2018.01.009
Keywords
DC microgrids; Sliding mode control; Decentralized control; Uncertain systems; Voltage regulation
Funding
- RSE S.p.A.
- Ministry of Economic Development - General Directorate for Nuclear Energy, Renewable Energy and Energy Efficiency
- Netherlands Organisation for Scientific Research (NWO) [675999, 408.urs+.16.005]
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This paper deals with the design of a robust decentralized control scheme for voltage regulation in boost-based DC microgrids. The proposed solution consists of the design of a suitable manifold on which voltage regulation is achieved even in presence of unknown load demand and modeling uncertainties. A second order sliding mode control is used to constrain the state of the microgrid to this manifold by generating continuous control inputs that can be used as duty cycles of the power converters. The proposed control scheme has been theoretically analyzed and validated through experiments on a real DC microgrid. (C) 2018 Elsevier Ltd. All rights reserved.
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