6533b7ddfe1ef96bd1273dfc
RESEARCH PRODUCT
Active load sharing technique for on-line efficiency optimization in DC microgrids
Lexuan MengJosep M. GuerreroGaetano ZizzoE. Riva SanseverinoValeria Boscainosubject
EngineeringEnvironmental EngineeringDC distribution system020209 energyEnergy Engineering and Power Technology02 engineering and technologyActive loadIndustrial and Manufacturing EngineeringSampling (signal processing)Control theoryGenetic algorithm0202 electrical engineering electronic engineering information engineeringElectronic engineeringElectrical and Electronic EngineeringMATLABcomputer.programming_languageGlobal efficiency optimizationbusiness.industryConvertersPower (physics)Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaDC distributionLookup tableOptimal load sharingbusinesscomputerdescription
Recently, DC power distribution is gaining more and more importance over its AC counterpart achieving increased efficiency, greater flexibility, reduced volumes and capital cost. In this paper, a 24-120-325V two-level DC distribution system for home appliances, each including three parallel DC-DC converters, is modeled. An active load sharing technique is proposed for the on-line optimization of the global efficiency of the DC distribution network. The algorithm aims at the instantaneous efficiency optimization of the whole DC network, based on the on-line load current sampling. A Look Up Table, is created to store the real efficiencies of the converters taking into account components tolerances. A MATLAB/Simulink model of the DC distribution network has been set up and a Genetic Algorithm has been employed for the global efficiency optimization. Simulation results are shown to validate the proposed solution.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-06-01 |