Design of a DC/DC converter model for the purpose of enabling parallel operation of battery modules

U programskom okruženju PLECS ostvaren je model sustava napajanja električnog vozila. Sustav se sastoji od baterijskog paketa s tri modula, višeulaznog jednoizlaznog DC/DC pretvarača i strujnog izvora koji predstavlja teret. Napravljena je regulacija struja prema stanjima napunjenosti pojedinih modula i regulacija napona istosmjernog međukruga. Prikazane su ulazne i izlazne vrijednosti u režimima rada terećenja i kočenja. Zbog programskih ograničenja, prvo je napravljen prikaz rezultata na modelu s dvije grane, a u drugom dijelu simulacije rezultati na modelu s tri grane. Za potrebe povećanja kapaciteta tako bi se teoretski mogao dodati još proizvoljan broj grana, tj. modula. Osnovni princip rada ovakvog sustava je već implementiran, no nije u širokoj upotrebi. Daljnji razvoj ove ideje riješio bi jedan od problema nedovoljno razvijene infrastrukture električnih punionica omogućivši udaljeno punjenje modula baterijskog paketa.In the PLECS programming environment, a model of the power supply system of an electric vehicle was achieved. The system consists of a battery pack with three modules, a multiple-input single-output DC/DC converter and a current source representing the load. The regulation of currents according to the states of charge of individual modules and the regulation of the voltage of the DC link have been adjusted. The input and output values in the loading and braking modes are shown. Due to program limitations, first the results were presented on the model with two branches, and in the second part of the simulation the results on the model with three branches. In order to increase the capacity, an arbitrary number of branches, i.e. modules, could theoretically be added. The basic operating principle of such a system has already been implemented, but it is not widely used. Further development of this idea would solve one of the problems of an underdeveloped infrastructure of electric charging stations by enabling remote charging of battery pack modules