A simplified control scheme for electric vehicle-power grid circuit with DC distribution and battery storage systems

Kabeya Musasa, Musole Innocent Muheme, Nnamdi Ikechi Nwulu, Mammo Muchie

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The direct current (DC) system is becoming the major trend for future internal power grid of electric vehicles (EVs). Since DC power grid system has a different nature to conventional alternating current (AC) grid system, appropriate design of the controller for EV-grid circuit is mandatory. In this paper, an EV employing a pure DC grid circuit with battery storage system (BSS) is considered as a study case. To enable a more efficient use of BSS, a flyback DC-DC converter for batteries charger/or discharger strategy is selected, which satisfies the power flows requirements. The dynamic and control performances of the combined system, i.e. ‘BSS-flyback DC-DC converter connected to a DC motor’, is investigated in terms of voltage/current signal fluctuations. The small-signal based control method is used, which limits the small-signal variations to about zero. To verify the effectiveness of the control strategy, several simulations are done using Matlab. The simulation results illustrate the performances obtained.

Original languageEnglish
Pages (from-to)369-374
Number of pages6
JournalAfrican Journal of Science, Technology, Innovation and Development
Volume11
Issue number3
DOIs
Publication statusPublished - 16 Apr 2019

Keywords

  • DC-DC power converters
  • batteries
  • control design
  • electric vehicles
  • power grids

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Development
  • Computer Science Applications
  • Computer Networks and Communications

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