Now showing items 1-4 of 4

    • Direct current control for grid-connected diode-clamped inverters 

      Schaefer, Markus; Goetze, Wolf; Hofmann, Martin; Bayer, Fabian; Montesinos Miracle, Daniel; Ackva, Ansgar (Institute of Electrical and Electronics Engineers (IEEE), 2017-04-01)
      Article
      Open Access
      The accurate control of the line current, robust and dynamic behavior even under distorted grids and other system faults are the most important requirements for grid-connected inverters. Applying direct current control to ...
    • Improved direct current control for grid connected multilevel inverters 

      Hofmann, Martin; Schaefer, Markus; Montesinos Miracle, Daniel; Ackva, Ansgar (Institute of Electrical and Electronics Engineers (IEEE), 2020-08-25)
      Article
      Restricted access - publisher's policy
      This paper presents a sensorless voltage detection method for direct current control in grid connected multilevel inverters. The direct current control is based on Scalar Hysteresis Controller (SHC). The SHC is a simplified ...
    • Reducing cell to cell variation of lithium-ion battery packs during operation 

      Andreas, Ziegler; Oeser, David; Hein, Thiemo; Montesinos Miracle, Daniel; Ackva, Ansgar (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Article
      Open Access
      In this work, an experimental approach to reduce the variation from cell to cell during battery operation is evaluated to reach a better battery utilization. Numerous theoretical considerations of intelligent battery ...
    • Run to failure: aging of commercial battery cells beyond their end of life 

      Andreas, Ziegler; Oeser, David; Hein, Thiemo; Montesinos Miracle, Daniel; Ackva, Ansgar (2020-04-11)
      Article
      Open Access
      The aim of this work is to age commercial battery cells far beyond their expected lifetime. There is a gap in the literature regarding run to failure tests of lithium-ion batteries that this work intends to address. ...