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Patent Searching and Data


Title:
BRUSHLESS SYNCHRONOUS GENERATOR
Document Type and Number:
WIPO Patent Application WO/2019/098341
Kind Code:
A1
Abstract:
The present invention makes supplying of a current from outside during startup of a brushless synchronous generator unnecessary. A rotor 11 of an AC exciter 10, a rotary rectifier 20, and a rotor 31 of a main generator 30 are fixed to a main shaft 40, and rotate together with the main shaft 40. A rotor winding of the rotor 11 of the AC exciter 10 outputs a three-phase alternating current. The rotary rectifier 20 rectifies AC current output from the rotor winding of the rotor 11 and outputs DC current. The DC current output from the rotary rectifier 20 is supplied as field current to the rotor winding of the rotor 31 of the main generator 30. A stator winding of a stator 35 of the main generator 30 outputs a three-phase alternating current. An automatic voltage regulator 50 has the three-phase alternating current outputted from the stator winding of the stator 35 inputted, and supplies a direct current field current to the stator winding of a stator 15 of the AC exciter 10. The stator 15 of the AC exciter 10 has a permanent magnet 16, and/or the rotor 31 of the main generator 30 has a permanent magnet 32.

Inventors:
HANEDA Masaji (975 Jorakuji, Azuchicho Omihachiman-sh, Shiga 51, 〒5211351, JP)
Application Number:
JP2018/042549
Publication Date:
May 23, 2019
Filing Date:
November 16, 2018
Export Citation:
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Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
International Classes:
H02P9/08; H02K19/22; H02K19/26; H02K19/28; H02P9/14
Foreign References:
JPS5947300U1984-03-29
JPS5158815U1976-05-10
JP2001119874A2001-04-27
JP2016167903A2016-09-15
Attorney, Agent or Firm:
KOJIMA Takiro (KOJIMA & ASSOCIATES, Tokyo Kotsu Kaikan 9F 2-10-1, Yurakuch, Chiyoda-ku Tokyo 06, 〒1000006, JP)
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