Title:
HYDROELECTRIC POWER GENERATION DEVICE AND POWER GENERATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/198771
Kind Code:
A1
Abstract:
A hydroelectric power generation device comprises: a water turbine (1); an electrical or mechanical braking device (12) for causing braking force to act on a rotation shaft that interlocks with the water turbine (1); and a control device (100) for repeating the operation and release of the braking device (12) so as to increase or decrease the braking force. The control device (100) operates the braking device (12) for a first number of times when a reduction amount of generated power of a generator (3) from power corresponding to flow velocity is a first value (for example, the braking device is operated three times when the generated power is 90% after reducing by 10%), and operates the braking device (12) for a second number of times larger than the first number of times when the reduction amount of the generated power is a second value larger than the first value (for example, the braking device is operated four times when the generated power is 70% after reducing by 30%, and is operated six times when the generated power reduces by 50%). As a result, a compact hydroelectric power generation device with easy maintenance against dust and foreign matters can be provided while suppressing cost.
Inventors:
KAWAI TOMOYA (JP)
Application Number:
PCT/JP2018/015191
Publication Date:
November 01, 2018
Filing Date:
April 11, 2018
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F03B15/18; E02B9/08; F03B11/08
Foreign References:
| JPS5484220A | 1979-07-05 | |||
| JPH0730373U | 1995-06-06 | |||
| JP2012197703A | 2012-10-18 | |||
| JP2008261327A | 2008-10-30 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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