Transient Simulations in Hydropower Stations Based on a Novel Turbine Boundary
Joint Authors
Liu, Yanna
Yang, Jiandong
Yang, Jiebin
Wang, Chao
Zeng, Wei
Source
Mathematical Problems in Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-06-30
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Most accidents in hydropower stations happened during transient processes; thus, simulation of these processes is important for station design and safety operation.
This study establishes a mathematical model of the transient process in hydropower stations and presents a new method to calculate the hydraulic turbine boundary based on an error function of the rotational speed.
The mathematical derivation shows that the error function along the equal-opening characteristic curve is monotonic and has opposite signs at the two sides, which means that a unique solution exists to make the error function null.
Thus, iteration of the transient simulation is unique and monotonous, which avoids iterative convergence or false solution and improves the solution efficiency compared with traditional methods.
Simulation of an engineering case illustrates that the results obtained by the error function are reasonable.
Then, the accuracy and feasibility of the mathematical model using the proposed solution are verified by comparison with model and field tests.
American Psychological Association (APA)
Liu, Yanna& Yang, Jiandong& Yang, Jiebin& Wang, Chao& Zeng, Wei. 2016. Transient Simulations in Hydropower Stations Based on a Novel Turbine Boundary. Mathematical Problems in Engineering،Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1111732
Modern Language Association (MLA)
Liu, Yanna…[et al.]. Transient Simulations in Hydropower Stations Based on a Novel Turbine Boundary. Mathematical Problems in Engineering No. 2016 (2016), pp.1-13.
https://search.emarefa.net/detail/BIM-1111732
American Medical Association (AMA)
Liu, Yanna& Yang, Jiandong& Yang, Jiebin& Wang, Chao& Zeng, Wei. Transient Simulations in Hydropower Stations Based on a Novel Turbine Boundary. Mathematical Problems in Engineering. 2016. Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1111732
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1111732