h1

% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@PHDTHESIS{Harries:1002683,
      author       = {Harries, Martin},
      othercontributors = {de Doncker, Rik W. and Mertens, Axel},
      title        = {{A}ktive {R}eduzierung der {V}ibrationen von
                      {P}ermanentmagnet-{S}ynchronmaschinen durch adaptive
                      {R}egler},
      volume       = {182},
      school       = {Rheinisch-Westfälische Technische Hochschule Aachen},
      type         = {Dissertation},
      address      = {Aachen},
      publisher    = {ISEA},
      reportid     = {RWTH-2025-00626},
      series       = {Aachener Beiträge des ISEA},
      pages        = {1 Online-Ressource : Illustrationen},
      year         = {2024},
      note         = {Veröffentlicht auf dem Publikationsserver der RWTH Aachen
                      University 2025; Dissertation, Rheinisch-Westfälische
                      Technische Hochschule Aachen, 2024},
      abstract     = {Even though synchronous motors are considered quiet, their
                      tonal noise can be perceived as unpleasant and, in the worst
                      case, exceed normative limit values. Acoustically, the drive
                      becomes particularly noticeable when its rotating and
                      oscillating magnetic field forces excite a mechanical
                      machine resonance. However, the oscillation of the magnetic
                      forces can be suppressed by intelligent control of the phase
                      currents or the magnetic flux. This work investigates the
                      correlation of harmonics of the electrical machine variables
                      and the resulting vibration and presents an acoustically
                      optimized machine control, where the machine controller is
                      extended by an additional feedback channel to evaluate its
                      acoustic state. An adaptive controller optimizes its
                      injection parameters independently and can thus eliminate
                      the oscillation of the field forces of the critical mode
                      zero excitation. It is shown that, depending on the type of
                      resonance, a certain injection axis is to be preferred,
                      which reduces the necessary injection amplitudes and can
                      thus be implemented with almost no reduction in machine
                      efficiency. Using the example of a commercial vehicle drive,
                      this purely control-based approach was able to achieve an
                      improvement in the sound level of over 12 dB at critical
                      operating points compared to pure fundamental frequency
                      control.},
      cin          = {614510 / 614500},
      ddc          = {621.3},
      cid          = {$I:(DE-82)614510_20140620$ / $I:(DE-82)614500_20201203$},
      typ          = {PUB:(DE-HGF)11 / PUB:(DE-HGF)3},
      doi          = {10.18154/RWTH-2025-00626},
      url          = {https://publications.rwth-aachen.de/record/1002683},
}