Applicative Study of PEDF Technology in Transportation Industry
In view of the demands of transportation industry on energy conservation,emission reduction,and electric sup-ply reliability,this work explored the use of photovoltaic-energy storage-direct current-flexibility(PEDF)technology to a-chieve direct utilization upon production of photovoltaic generations,as well as DC utilization of power load.This mode en-tailed self-consumption of new energy generations along with storage and grid-output of surplus electricity or rectified sup-plement for deficit.It simplifies power conversion process and utilizes the characteristics of high reliability and low loss of multi-source collaborative DC systems to achieve efficient consumption of new energy generations and improve electric supply reliability.A practical pilot tests of PEDF were conducted in an actual express-way service area and the DC lighting of an actual tunnel,which verified the effectiveness of the proposed technical solution.
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