Improving Overall Performance of Propeller-Type Hydroturbines with the Use of Variable Rotational Speed

Reconstruction of axial hydroturbines by installing propeller-type blade runners with variable rotational speed is examined. The calculation methodology for energy indicators of such turbines according to their Hill chart is presented. The effectiveness of transferring hydroturbines to operation wit...

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Bibliographic Details
Published in:Power technology and engineering 2018-07, Vol.52 (2), p.121-127
Main Authors: Ivanchenko, I. P., Kostruba, A. B., Topazh, G. I.
Format: Article
Language:English
Subjects:
Electric power generation
Electrical Machines and Networks
Energy
Energy Systems
Foundations
Geoengineering
Hydraulic turbines
Hydraulics
Hydrotechnical Construction
Power Electronics
Renewable and Green Energy
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Summary:Reconstruction of axial hydroturbines by installing propeller-type blade runners with variable rotational speed is examined. The calculation methodology for energy indicators of such turbines according to their Hill chart is presented. The effectiveness of transferring hydroturbines to operation with variable rotational speed is shown, using the example of the Cheboksary HPP. In this case, power generation increased by 16% using the same volume of water passing through the turbines. At the same time, the turbine adjustment range widens in comparison with the traditional propeller-type units operating at constant rotational speed.
ISSN:1570-145X
1570-1468
DOI:10.1007/s10749-018-0920-6