Title:
WIND POWER GENERATOR
Document Type and Number:
Japanese Patent JP3817582
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To continue the operation of a wind power generator without using a secondary battery even when a fault occurs in the secondary battery which can be connected directly to a DC between a rectifier and an inverter without supplying overcurrent.
SOLUTION: A wind power generator includes a rectifier 3 for rectifying an AC output of the wind power generator into a DC voltage, the inverter 5 for converting a wind power generator output converted into the DC voltage into an AC voltage, the DC having a smoothing capacitor 4 for connecting the rectifier 3 to the inverter 5, the secondary battery 9 having a switch 10 connected directly to the DC and a current limiting switch 8 connected to the DC via a current limiter circuit 7, and a switching controller 26 for comparing the secondary battery voltage with the smoothing capacitor voltage to close the switch 10 for connecting the secondary battery 9 directly to the DC when the secondary battery voltage substantially coincides with the smoothing capacitor voltage.
Inventors:
Teru Kikuchi
Motoo Futami
Naoshi Sugawara
Koichi Miyazaki
Satoshi Maekawa
Motoo Futami
Naoshi Sugawara
Koichi Miyazaki
Satoshi Maekawa
Application Number:
JP2003178135A
Publication Date:
September 06, 2006
Filing Date:
June 23, 2003
Export Citation:
Assignee:
株式会社日立製作所
株式会社日立エンジニアリング・アンド・サービス
株式会社日立エンジニアリング・アンド・サービス
International Classes:
F03D7/04; H02P9/00; F03D9/02; H02J7/00; H02P9/48; (IPC1-7): H02P9/00; F03D7/04; F03D9/02; H02J7/00; H02P9/48
Domestic Patent References:
| JP2000102294A | ||||
| JP2002078205A | ||||
| JP2000116007A |
Attorney, Agent or Firm:
Kenjiro Take