Title:
DEVICE FOR INHIBITING HARMONIC AMPLIFICATION ON THE THIRD WINDING SIDE OF EXTRA-HIGH VOLTAGE /ULTRA-HIGH VOLTAGE TRANSFORMER
Document Type and Number:
WIPO Patent Application WO/2011/020302
Kind Code:
A1
Abstract:
A device for inhibiting harmonic amplification on the third winding side of an extra-high voltage/ ultra-high voltage transformer includes at least two groups of parallel capacitors (101a, 101b). Each group of parallel capacitors comprises three capacitors (Xc1, Xc2) and three reactors (XL1, XL2), wherein after each capacitor is connected in series with a reactor to form three series circuits, the three series circuits are connected in parallel. The capacities of all capacitors in the groups of parallel capacitors are equal. At least one group of parallel capacitors has a first series reactance ratio, while other groups of parallel capacitors have a second series reactance ratio. The said first series reactance ratio is different from the said second series reactance ratio. The device can inhibit harmonic amplification on the third winding side of the extra-high voltage/ ultra-high voltage transformer.
Inventors:
ZHANG, Zhiqiang (No. 15 Xiaoyingdonglu, Qinghe Haidian District, Beijing 2, 100192, CN)
张志强 (中国北京市海淀区清河小营东路15号, Beijing 2, 100192, CN)
XIANG, Zutao (No. 15 Xiaoyingdonglu, Qinghe Haidian District, Beijing 2, 100192, CN)
项祖涛 (中国北京市海淀区清河小营东路15号, Beijing 2, 100192, CN)
BAN, Liangeng (No. 15 Xiaoyingdonglu, Qinghe Haidian District, Beijing 2, 100192, CN)
班连庚 (中国北京市海淀区清河小营东路15号, Beijing 2, 100192, CN)
LIN, Jiming (No. 15 Xiaoyingdonglu, Qinghe Haidian District, Beijing 2, 100192, CN)
林集明 (中国北京市海淀区清河小营东路15号, Beijing 2, 100192, CN)
张志强 (中国北京市海淀区清河小营东路15号, Beijing 2, 100192, CN)
XIANG, Zutao (No. 15 Xiaoyingdonglu, Qinghe Haidian District, Beijing 2, 100192, CN)
项祖涛 (中国北京市海淀区清河小营东路15号, Beijing 2, 100192, CN)
BAN, Liangeng (No. 15 Xiaoyingdonglu, Qinghe Haidian District, Beijing 2, 100192, CN)
班连庚 (中国北京市海淀区清河小营东路15号, Beijing 2, 100192, CN)
LIN, Jiming (No. 15 Xiaoyingdonglu, Qinghe Haidian District, Beijing 2, 100192, CN)
林集明 (中国北京市海淀区清河小营东路15号, Beijing 2, 100192, CN)
Application Number:
CN2010/001257
Publication Date:
February 24, 2011
Filing Date:
August 19, 2010
Export Citation:
Assignee:
CHINA ELECTRIC POWER RESEARCH INSTITUTE (No. 15 Xiaoyingdonglu, Qinghe Haidian District, Beijing 2, 100192, CN)
中国电力科学研究院 (中国北京市海淀区清河小营东路15号, Beijing 2, 100192, CN)
STATE GRID CORPORATION OF CHINA (No. 86 Xi Chang'an Avenue, Xicheng District, Beijing 1, 100031, CN)
国家电网公司 (中国北京市西城区西长安街86号, Beijing 1, 100031, CN)
ZHANG, Zhiqiang (No. 15 Xiaoyingdonglu, Qinghe Haidian District, Beijing 2, 100192, CN)
张志强 (中国北京市海淀区清河小营东路15号, Beijing 2, 100192, CN)
XIANG, Zutao (No. 15 Xiaoyingdonglu, Qinghe Haidian District, Beijing 2, 100192, CN)
项祖涛 (中国北京市海淀区清河小营东路15号, Beijing 2, 100192, CN)
BAN, Liangeng (No. 15 Xiaoyingdonglu, Qinghe Haidian District, Beijing 2, 100192, CN)
班连庚 (中国北京市海淀区清河小营东路15号, Beijing 2, 100192, CN)
中国电力科学研究院 (中国北京市海淀区清河小营东路15号, Beijing 2, 100192, CN)
STATE GRID CORPORATION OF CHINA (No. 86 Xi Chang'an Avenue, Xicheng District, Beijing 1, 100031, CN)
国家电网公司 (中国北京市西城区西长安街86号, Beijing 1, 100031, CN)
ZHANG, Zhiqiang (No. 15 Xiaoyingdonglu, Qinghe Haidian District, Beijing 2, 100192, CN)
张志强 (中国北京市海淀区清河小营东路15号, Beijing 2, 100192, CN)
XIANG, Zutao (No. 15 Xiaoyingdonglu, Qinghe Haidian District, Beijing 2, 100192, CN)
项祖涛 (中国北京市海淀区清河小营东路15号, Beijing 2, 100192, CN)
BAN, Liangeng (No. 15 Xiaoyingdonglu, Qinghe Haidian District, Beijing 2, 100192, CN)
班连庚 (中国北京市海淀区清河小营东路15号, Beijing 2, 100192, CN)
International Classes:
H01F27/34; H02J3/01
Attorney, Agent or Firm:
CCPIT PATENT & TRADEMARK LAW OFFICE (8th Floor, Vantone New World Plaza2 Fuchengmenwai Street, Beijing 7, 100037, CN)
Claims:
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