Title:
CROW BAR CIRCUIT FOR WIND POWER GENERATOR
Document Type and Number:
WIPO Patent Application WO/2012/093771
Kind Code:
A1
Abstract:
The present invention provides a crow bar circuit for a wind power generator, in which the crow bar circuit is connected in parallel between a rotor of a wind power generator and a wind power converter and protects said wind power converter, wherein two pairs of diodes (D1, D2, D3, D4) and one pair of thyristors (T1, T2) are connected in parallel between the rotor and the wind power converter,
and it is desirable that: the two pairs of the diodes (D1, D2, D3, D4) connected in serial and the one pair of the thyristors (T1, T2) connected in serial are connected with each other in parallel; the one pair of the thyristors (T1, T2) are connected in an opposite direction to the two pairs of the diodes (D1, D2, D3, D4) between the two pairs of the diodes (D1, D2, D3, D4); and if an overvoltage is generated from said rotor by an overvoltage of a power system voltage which is connected with said wind power generator, the invention is alternately communicated to protect said wind power converter.
Inventors:
LEE, Kang Ju (#109-507, Hyundai Family Myeungdeok 1-cha Apt.,Seobu-dong, Dong-gu, Ulsan 682-753, 682-753, KR)
이강주 (울산광역시 동구 서부동 현대패밀리명덕1차아파트 109동 507호, 682-753 Ulsan, 682-753, KR)
KOO, Seoung Young (#1-508, JeonhakwanJeonha-dong, Dong-gu, Ulsan 682-060, 682-060, KR)
이강주 (울산광역시 동구 서부동 현대패밀리명덕1차아파트 109동 507호, 682-753 Ulsan, 682-753, KR)
KOO, Seoung Young (#1-508, JeonhakwanJeonha-dong, Dong-gu, Ulsan 682-060, 682-060, KR)
Application Number:
KR2011/008199
Publication Date:
July 12, 2012
Filing Date:
October 31, 2011
Export Citation:
Assignee:
HYUNDAI HEAVY INDUSTRIES CO., LTD. (1, Jeonha-dong Dong-gu, Ulsan 682-792, 682-792, KR)
현대중공업 주식회사 (울산광역시 동구 전하동 1번지, 682-792 Ulsan, 682-792, KR)
LEE, Kang Ju (#109-507, Hyundai Family Myeungdeok 1-cha Apt.,Seobu-dong, Dong-gu, Ulsan 682-753, 682-753, KR)
이강주 (울산광역시 동구 서부동 현대패밀리명덕1차아파트 109동 507호, 682-753 Ulsan, 682-753, KR)
현대중공업 주식회사 (울산광역시 동구 전하동 1번지, 682-792 Ulsan, 682-792, KR)
LEE, Kang Ju (#109-507, Hyundai Family Myeungdeok 1-cha Apt.,Seobu-dong, Dong-gu, Ulsan 682-753, 682-753, KR)
이강주 (울산광역시 동구 서부동 현대패밀리명덕1차아파트 109동 507호, 682-753 Ulsan, 682-753, KR)
International Classes:
H02M9/00
Attorney, Agent or Firm:
KIM, Sun-young (Korea Coal Center, 10th Floor 80-6,,Susong-Dong, Chongro-Ku, Seoul 110-727, 110-727, KR)
Claims:
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