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.

    ORCID iDs

    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
      Dates:
      Date
      Event
      1 June 2018
      Published
      27 February 2018
      Published Online
      17 February 2018
      Accepted
      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:09 Apr 2021 03:13
      Related URLs:
      URI:https://strathprints.strath.ac.uk/id/eprint/72136
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