The Experts below are selected from a list of 246 Experts worldwide ranked by ideXlab platform

Sören Hohmann - One of the best experts on this subject based on the ideXlab platform.

  • CDC - Fractional algebraic identification of the distribution of relaxation times of battery cells
    2015 54th IEEE Conference on Decision and Control (CDC), 2015
    Co-Authors: Marius Eckert, Lukas Kölsch, Sören Hohmann
    Abstract:

    In this paper, an algebraic model-based approach for the identification of a battery's distribution of relaxation times (DRT) is illustrated. The DRT is directly linked to physically interpretable parameters to determine the aging of a battery cell. The approach derives from Mikusinski's operational calculus. Therefore a novel Integration Operator and the differentiation rule for fractional systems is presented. The identification is exact in that no approximations of the novel Operator are used. The procedure is verified by simulation results.

  • Fractional algebraic identification of the distribution of relaxation times of battery cells
    2015 54th IEEE Conference on Decision and Control (CDC), 2015
    Co-Authors: Marius Eckert, Lukas Kölsch, Sören Hohmann
    Abstract:

    In this paper, an algebraic model-based approach for the identification of a battery's distribution of relaxation times (DRT) is illustrated. The DRT is directly linked to physically interpretable parameters to determine the aging of a battery cell. The approach derives from Mikusiński's operational calculus. Therefore a novel Integration Operator and the differentiation rule for fractional systems is presented. The identification is exact in that no approximations of the novel Operator are used. The procedure is verified by simulation results.

Marius Eckert - One of the best experts on this subject based on the ideXlab platform.

  • CDC - Fractional algebraic identification of the distribution of relaxation times of battery cells
    2015 54th IEEE Conference on Decision and Control (CDC), 2015
    Co-Authors: Marius Eckert, Lukas Kölsch, Sören Hohmann
    Abstract:

    In this paper, an algebraic model-based approach for the identification of a battery's distribution of relaxation times (DRT) is illustrated. The DRT is directly linked to physically interpretable parameters to determine the aging of a battery cell. The approach derives from Mikusinski's operational calculus. Therefore a novel Integration Operator and the differentiation rule for fractional systems is presented. The identification is exact in that no approximations of the novel Operator are used. The procedure is verified by simulation results.

  • Fractional algebraic identification of the distribution of relaxation times of battery cells
    2015 54th IEEE Conference on Decision and Control (CDC), 2015
    Co-Authors: Marius Eckert, Lukas Kölsch, Sören Hohmann
    Abstract:

    In this paper, an algebraic model-based approach for the identification of a battery's distribution of relaxation times (DRT) is illustrated. The DRT is directly linked to physically interpretable parameters to determine the aging of a battery cell. The approach derives from Mikusiński's operational calculus. Therefore a novel Integration Operator and the differentiation rule for fractional systems is presented. The identification is exact in that no approximations of the novel Operator are used. The procedure is verified by simulation results.

Federico Milano - One of the best experts on this subject based on the ideXlab platform.

  • Small-Signal Stability Analysis of Large Power Systems With Inclusion of Multiple Delays
    IEEE Transactions on Power Systems, 2016
    Co-Authors: Federico Milano
    Abstract:

    The paper focuses on the small-signal stability analysis of large power systems with inclusion of multiple delayed signals. The following four techniques are compared: 1) a Chebyshev discretization scheme of an equivalent partial differential equations that resembles the original delay differential-algebraic equations (DDAEs); 2) an approximation of the time Integration Operator; 3) a linear multistep discretization of the DDAEs based on an high-order implicit time-Integration scheme; and 4) the well-known Padé approximants. These techniques are compared using a GPU-based parallel implementation of the Shur method and QR factorization and tested through a real-world transmission system.

Lukas Kölsch - One of the best experts on this subject based on the ideXlab platform.

  • CDC - Fractional algebraic identification of the distribution of relaxation times of battery cells
    2015 54th IEEE Conference on Decision and Control (CDC), 2015
    Co-Authors: Marius Eckert, Lukas Kölsch, Sören Hohmann
    Abstract:

    In this paper, an algebraic model-based approach for the identification of a battery's distribution of relaxation times (DRT) is illustrated. The DRT is directly linked to physically interpretable parameters to determine the aging of a battery cell. The approach derives from Mikusinski's operational calculus. Therefore a novel Integration Operator and the differentiation rule for fractional systems is presented. The identification is exact in that no approximations of the novel Operator are used. The procedure is verified by simulation results.

  • Fractional algebraic identification of the distribution of relaxation times of battery cells
    2015 54th IEEE Conference on Decision and Control (CDC), 2015
    Co-Authors: Marius Eckert, Lukas Kölsch, Sören Hohmann
    Abstract:

    In this paper, an algebraic model-based approach for the identification of a battery's distribution of relaxation times (DRT) is illustrated. The DRT is directly linked to physically interpretable parameters to determine the aging of a battery cell. The approach derives from Mikusiński's operational calculus. Therefore a novel Integration Operator and the differentiation rule for fractional systems is presented. The identification is exact in that no approximations of the novel Operator are used. The procedure is verified by simulation results.

Ilias Zadik - One of the best experts on this subject based on the ideXlab platform.

  • pade approximants density of rational functions in a ω and smoothness of the Integration Operator
    Journal of Mathematical Analysis and Applications, 2015
    Co-Authors: Vassili Nestoridis, Ilias Zadik
    Abstract:

    First we establish some generic universalities for Pade approximants in the closure X∞(Ω) in the space A∞(Ω) of all rational functions with poles off Ω¯. The closure Ω¯ of the domain Ω⊂C is taken with respect to the finite plane C. Next we give sufficient conditions on Ω so that X∞(Ω)=A∞(Ω). Some of these conditions imply that, even if the boundary ∂Ω of a Jordan domain Ω has infinite length, the Integration Operator on Ω preserves H∞(Ω) and A(Ω) as well. We also give an example of a Jordan domain Ω and a function f∈A(Ω), such that its antiderivative is not bounded on Ω. Finally we restate these results for Volterra Operators on the open unit disc D and we complete them by some generic results.

  • pad e approximants density of rational functions in bbb a infty oo and smoothness of the Integration Operator
    arXiv: Complex Variables, 2012
    Co-Authors: Vassili Nestoridis, Ilias Zadik
    Abstract:

    First we establish some generic universalities for Pad\'{e} approximants in the closure $X^\infty(\OO)$ in $A^\infty(\OO)$ of all rational functions with poles off $\oO$, the closure taken in $\C$ of the domain $\OO\subset\C$.\ Next we give sufficient conditions on $\OO$ so that $X^\infty(\OO)=A^\infty(\OO)$.\ Some of these conditions imply that, even if the boundary $\partial\OO$ of a Jordan domain $\OO$ has infinite length, the Integration Operator on $\OO$ preserves $H^\infty(\OO)$ and $A(\OO)$ as well.\ We also give an example of a Jordan domain $\OO$ and a function $f\in A(\OO)$, such that its antiderivative is not bounded on $\OO$.\ Finally we restate these results for Volterra Operators on the open unit disc $D$ and we complete them by some generic results.

  • Pad\'{e} Approximants, density of rational functions in $\bbb{A^\infty(\OO)}$ and smoothness of the Integration Operator
    arXiv: Complex Variables, 2012
    Co-Authors: Vassili Nestoridis, Ilias Zadik
    Abstract:

    First we establish some generic universalities for Pad\'{e} approximants in the closure $X^\infty(\OO)$ in $A^\infty(\OO)$ of all rational functions with poles off $\oO$, the closure taken in $\C$ of the domain $\OO\subset\C$.\ Next we give sufficient conditions on $\OO$ so that $X^\infty(\OO)=A^\infty(\OO)$.\ Some of these conditions imply that, even if the boundary $\partial\OO$ of a Jordan domain $\OO$ has infinite length, the Integration Operator on $\OO$ preserves $H^\infty(\OO)$ and $A(\OO)$ as well.\ We also give an example of a Jordan domain $\OO$ and a function $f\in A(\OO)$, such that its antiderivative is not bounded on $\OO$.\ Finally we restate these results for Volterra Operators on the open unit disc $D$ and we complete them by some generic results.