Evaluating Micro-Power Management of Solar Energy Harvesting using a Novel Modular Platform

摘要

Micro-PowerManagement(μPM)isessentialtosupplypowertoautarkicsensornodesfromenergyharvestingsources.AstherearenumerouswaystorealizeaμPM,thequestionarisesofhowtobenchmarkdifferentmanagementsunderreproducibleboundaryconditions.Inthispaperwepresenttheseconditionsforsolarharvesting.Further,weproposeasystemefficiencydefinition,whichisapplicabletoallself-poweredsystems.Forverification,weuseourmodularconstructionkit,whichisusedtosetupfourdifferentμPMconfigurations.Weexaminedtheinterplayofstate-of-the-artpowerconverterswithasupercapacitorarray.Asoneresult,theimprovementofusingabuckconvertercomparedtoanLDOwasquantifiedbyanincreaseof10percentagepointsinthesystemefficiency.Theexperimentsshowthatthemodularsetupandtheboundaryconditionsaresuitableforsuchinvestigations...