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

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 Vol. 52; no. 2; pp. 121 - 127
Main Authors: Ivanchenko, I. P., Kostruba, A. B., Topazh, G. I.
Format: Journal Article
Language:English
Published: New York Springer US 01-07-2018
Springer Nature B.V
Subjects:
Electric power generation
Electrical Machines and Networks
Energy
Energy Systems
Foundations
Geoengineering
Hydraulic turbines
Hydraulics
Hydrotechnical Construction
Power Electronics
Renewable and Green Energy
hydroturbine
variable rotational speed
power generation
calculation methodology
blade runner
energy indicators
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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