Online optimization of a multi-conversion-level DC home microgrid for system efficiency enhancement

V. Boscaino, J. M. Guerrero, I. Ciornei, L. Meng, E. Riva Sanseverino, G. Zizzo

Research output: Contribution to journalJournal articleResearchpeer-review

3 Citations (Scopus)

Abstract

In this paper, an on-line management system for the optimal efficiency operation of a multi-bus DC home distribution system is proposed. The operation of the system is discussed with reference to a distribution system with two conversion stages and three voltage levels. In each of the conversion stages, three paralleled DC/DC converters are implemented. A Genetic Algorithm performs the on-line optimization of the DC network’s global efficiency, generating the optimal current sharing ratios of the concurrent power converters. The overall DC/DC conversion system including the optimization section is modelled using MATLAB/Simulink. Thanks to the implemented online algorithm, considering the system modelling as dynamic master/slave configuration, reliability, robustness and flexibility of the whole conversion system is enhanced. Since an online algorithm is implemented, several variables are accounted for, such as: components loss parameters, components ageing, load currents, switching frequency and input voltage. Simulation results considering several case studies are presented and the benefits brought by the optimization algorithm in terms of power saving are widely discussed for each case study.
Original languageEnglish
JournalSustainable Cities and Society
Volume35
Pages (from-to)417-429
Number of pages13
ISSN2210-6707
DOIs
Publication statusPublished - Nov 2017

Fingerprint

distribution system
efficiency
slave
Electric potential
Power converters
Switching frequency
DC-DC converters
genetic algorithm
MATLAB
Aging of materials
Genetic algorithms
flexibility
modeling
simulation
management
bus
loss
parameter

Keywords

  • Active droop control
  • Current sharing
  • DC microgrids
  • Genetic algorithm
  • Master-slave control
  • Peak shaving
  • Power conversion efficiency

Cite this

Boscaino, V. ; Guerrero, J. M. ; Ciornei, I. ; Meng, L. ; Riva Sanseverino, E. ; Zizzo, G. / Online optimization of a multi-conversion-level DC home microgrid for system efficiency enhancement. In: Sustainable Cities and Society. 2017 ; Vol. 35. pp. 417-429.
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Online optimization of a multi-conversion-level DC home microgrid for system efficiency enhancement. / Boscaino, V.; Guerrero, J. M.; Ciornei, I.; Meng, L.; Riva Sanseverino, E.; Zizzo, G.

In: Sustainable Cities and Society, Vol. 35, 11.2017, p. 417-429.

Research output: Contribution to journalJournal articleResearchpeer-review

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