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  • manuscript-2017-11-8

    Rights statement: This is the author’s version of a work that was accepted for publication in Energy Conversion and Management. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Energy Conversion and Management, 165, 2018 DOI: 10.1016/j.enconman.2018.03.097

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A novel surface-cluster approach towards transient modeling of hydro-turbine governing systems in the start-up process

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<mark>Journal publication date</mark>1/06/2018
<mark>Journal</mark>Energy Conversion and Management
Volume165
Number of pages8
Pages (from-to)861-868
Publication statusPublished
Early online date10/04/18
Original languageEnglish

Abstract

Transient process, an essential condition for the operation of the hydro-turbine governing system, is critical for the safety and stability of a hydropower station. This research focuses on the transient modeling and dynamic analysis of the hydro-turbine governing system in the start-up process. A novel approach is developed to establish the dynamic model of the hydro-turbine governing system in transient process. The flow equation and torque equation were improved to reflect the dramatic changes of system parameters during the start-up process. As a pioneering work, the effect of guide vane opening law on the dynamic characteristics of the hydro-turbine governing system in the start-up process was investigated by numerical simulations. The results of this research can promote the development of transient modeling and performance improvement of hydro-turbine governing systems in transient process.

Bibliographic note

This is the author’s version of a work that was accepted for publication in Energy Conversion and Management. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Energy Conversion and Management, 165, 2018 DOI: 10.1016/j.enconman.2018.03.097