Title:
CONTROLLED PHASE SHIFT TRANSMITTER WITH SHORT-CIRCUIT CURRENT LIMITING FUNCTION
Document Type and Number:
WIPO Patent Application WO/2017/000735
Kind Code:
A1
Abstract:
A controlled phase shift transmitter with a short-circuit current limiting function comprises an exciting transformer (ET), a booster transformer (BT), and thyristor voltage-regulating circuits. The low-voltage end of a primary side winding in the booster transformer is the input end of the controlled phase shift transmitter, and the high-voltage end is the output end of the controlled phase shift transmitter. The primary side winding is formed by two winding sections (B1a, B2a; B1b, B2b; B1c, B2c) connected in series. A secondary side winding of the exciting transformer is formed by three winding sections (E2a, E3a, E4a; E2b, E3b, E4b; E2c, E3c, E4c) connected in series. The input end of each thyristor voltage-regulating circuit is connected to the secondary side winding of the exciting transformer, and the output end is connected to the high-voltage end of the primary side winding in the booster transformer. The controlled phase shift transmitter can rapidly change phase angles, limit short-circuit current, and achieve an important protective effect on safe operation of power grids in the fault state.
Inventors:
YU HONGYANG (CN)
PAN BING (CN)
SONG JIEYING (CN)
LU ZHENGANG (CN)
PAN BING (CN)
SONG JIEYING (CN)
LU ZHENGANG (CN)
Application Number:
PCT/CN2016/084271
Publication Date:
January 05, 2017
Filing Date:
June 01, 2016
Export Citation:
Assignee:
GLOBAL ENERGY INTERCONNECTION RES INST (CN)
STATE GRID CORP CHINA (CN)
STATE GRID CORP CHINA (CN)
International Classes:
H02J3/00; H02H7/26
Foreign References:
| CN103427414A | 2013-12-04 | |||
| CN104934974A | 2015-09-23 | |||
| CN204761030U | 2015-11-11 | |||
| CN103199522A | 2013-07-10 | |||
| CN103187727A | 2013-07-03 | |||
| MD2824B2 | 2005-07-30 | |||
| CA2092084A1 | 1993-02-09 |
Attorney, Agent or Firm:
AMBOYNA INTELLECTUAL PROPERTY AGENT CO., LTD. (CN)
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