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@ARTICLE{Zou:878073,
      author       = {Zou, Wei and Froning, Dieter and Shi, Yan and Lehnert,
                      Werner},
      title        = {{W}orking {Z}one for a {L}east {S}quares {S}upport {V}ector
                      {M}achine in the {M}odeling of {P}olymer {E}lectrolyte
                      {F}uel {C}ell {V}oltage},
      journal      = {Applied energy},
      volume       = {283},
      issn         = {0306-2619},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2020-02615},
      pages        = {116191 -},
      year         = {2021},
      abstract     = {The least squares support vector machine method has been
                      successfully applied to modeling the transient behavior of
                      polymer electrolyte fuel cells; this paper analyzes the
                      credibility and definition of its reliable working zone when
                      dealing with multiple load changes. The transient model
                      based on the least squares support vector machine is
                      initially established. Then, the effects of the fuel cell
                      system’s setup and exterior load behavior on the transient
                      model are investigated. Artificial data from
                      experimentally-validated Simulink simulations are used, by
                      which extreme working conditions could be taken into
                      account. We found that the fuel cell system’s setup with
                      intensive sampling brings about better model performance
                      than that with a sparse sampling interval, as sharp peaks
                      are well characterized when intensive sampling is applied
                      and more information on the fuel cell system is provided to
                      the transient model. Furthermore, the performance of the
                      transient model is better when smoother load changes are
                      imposed on the system, and so a large ramp time and small
                      ramp value are preferable. A working zone for a least
                      squares support vector machine to model polymer electrolyte
                      fuel cell is defined, for which an absolute error is used.
                      Based on the acceptable level of error in the fuel cell
                      system, a set of feasible combinations of its setup and
                      exterior load changes is regulated. Accuracy in the
                      transient model is achieved when the fuel cell runs within
                      the working domain.},
      cin          = {IEK-14},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-14-20191129},
      pnm          = {123 - Chemische Energieträger (POF4-123)},
      pid          = {G:(DE-HGF)POF4-123},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000613288200008},
      doi          = {10.1016/j.apenergy.2020.116191},
      url          = {https://juser.fz-juelich.de/record/878073},
}