Dynamic evolution of a hydraulic–mechanical–electric system with randomly fluctuating speed

Xu, Beibei and Chen, Diyi and Gao, Xiang and Tomas, Caraballo and Patelli, Edoardo (2018) Dynamic evolution of a hydraulic–mechanical–electric system with randomly fluctuating speed. Nonlinear Dynamics, 92 (4). pp. 1801-1813. ISSN 0924-090X

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    Abstract

    The generator speed is an important index in maintaining the stable connection between the hydraulic turbine and the electric power system. Historically, researches carried out are based on deterministic models. It is therefore a challenge to investigate the effects of random fluctuating speed on the dynamic evaluation of the hydraulic–mechanical–electric system as variable renewable generation sources link to the electric power system. Here, we proposed a probabilistic model and solved it by the Chebyshev polynomial approximation method. We also made a careful comparison implemented by the deterministic and the probabilistic models. Finally, we showed how the random excitations affect the dynamic evaluation of the system output.

    Creators(s): Xu, Beibei, Chen, Diyi, Gao, Xiang, Tomas, Caraballo and Patelli, Edoardo ORCID logoORCID: https://orcid.org/0000-0002-5007-7247;
    Item type:Article
    ID code:72136
    Keywords:Chebyshev polynomial approximation, elastic water hammer, hydraulic–mechanical–electrical system, randomly fluctuating generator speed, vibration characteristics, Mechanical engineering and machinery, Control and Systems Engineering, Aerospace Engineering, Ocean Engineering, Mechanical Engineering, Applied Mathematics, Electrical and Electronic Engineering
    Subjects:Technology > Mechanical engineering and machinery
    Department:Faculty of Engineering > Civil and Environmental Engineering
    Depositing user: Pure Administrator
    Date deposited:23 Apr 2020 10:26
    Last modified:28 Nov 2020 03:30
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/72136
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