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
Item type: Article ID code: 72136 Dates: DateEvent1 June 2018Published27 February 2018Published Online17 February 2018AcceptedKeywords: 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