Title:
風力発電機の電気ブレーキ
Document Type and Number:
Japanese Patent JP4657534
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To properly maintain and release operation of a semi-conductor switch for a brake circuit without using an external power source such as a battery. SOLUTION: This electric brake for a wind power generator comprises a brake circuit 10 provided with a semi-conductor switch 3 and a series resistance 4, and a control device 5 controlling operation of the semi-conductor switch 3. The electric brake is provided with a thermoelectric element 7 outputting electricity by heat generated from the series resistance 4 for the brake circuit 10 as a switch controlling power source detecting a current of the brake circuit 10 to control the semi-conductor switch 3, and an adjuster 8 adjusting the output of the thermoelectric element 7 by potential divider resistances 81, 82 and sending a control signal to the semi-conductor switch 3.
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Inventors:
Hisanao Aoki
Application Number:
JP2001282314A
Publication Date:
March 23, 2011
Filing Date:
September 17, 2001
Export Citation:
Assignee:
Furukawa Metal Co., Ltd.
International Classes:
F03D11/02; F03D7/04; F03D9/00; H02P3/00; H02P9/00; H02P9/08
Domestic Patent References:
| JP49020607A | ||||
| JP63004378U | ||||
| JP2002315395A | ||||
| JP2000179446A | ||||
| JP2001268994A | ||||
| JP2002339856A | ||||
| JP4093499U | ||||
| JP58095998A | ||||
| JP6214991U |
Attorney, Agent or Firm:
Tetsuya Mori
Yoshiaki Naito
Hide Tanaka Tetsu
Tadayuki Miyazaki
Yoshiaki Naito
Hide Tanaka Tetsu
Tadayuki Miyazaki