Title:
POWER ALTERNATING-CURRENT LINE FOR CONTROLLABLE TRANSMISSION, AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/242583
Kind Code:
A1
Abstract:
Disclosed in the present invention are an alternating-current line for controllable transmission, and a control method therefor. A current source type regulator is connected in series to an existing power alternating-current line, such that existing free-flowing alternating-current transmission is changed to controllable transmission, and the line can be operated with thermal stability and is not limited by a power transmission distance factor and a reactive balance factor, thereby realizing large-capacity long-distance transmission. On-line ice melting can be performed during thermally stable transmission. A short-line overload does not occur in a plurality of lines on a power flow section. A fault current is not generated during a line fault. Two asynchronous power grids can be connected to smoothly transit to synchronization paralleling. Two power grids having different voltages can be connected to perform load transmission. The line can be progressively boosted, thereby avoiding the problems in the prior art of reactive fluctuations during full-voltage charging and a re-closing action, and of the impact of a fault current on a system during charging in a fault line. When the line is unloaded, no-voltage standby can be realized, so as to limit a voltage rise, a leading phase of a power generator, a line loss of a reactive current and a corona loss, which are all caused by surplus charging power of the line at a load valley of a power grid.
Inventors:
HE CHANGHONG (CN)
HE HANQING (CN)
HE HANQING (CN)
Application Number:
PCT/CN2022/092946
Publication Date:
November 24, 2022
Filing Date:
May 16, 2022
Export Citation:
Assignee:
HE CHANGHONG (CN)
International Classes:
H02J3/06; H02J3/38
Foreign References:
| CN107919669A | 2018-04-17 | |||
| CN112583018A | 2021-03-30 | |||
| CN102611310A | 2012-07-25 | |||
| CN104218563A | 2014-12-17 | |||
| CN102280867A | 2011-12-14 | |||
| JPH09289703A | 1997-11-04 |
Attorney, Agent or Firm:
BEIJING CIPRUN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF: