Title:
COORDINATED CONTROL METHOD AND DEVICE FOR SERIES VOLTAGE SOURCE CONVERTER VALVE GROUP
Document Type and Number:
WIPO Patent Application WO/2019/109842
Kind Code:
A1
Abstract:
A coordinated control method for a series voltage source converter valve group comprises: allocate a total direct-current voltage reference value or a total active power reference value of a side where a direct-current pole series voltage source converter valve group is located according to the total number of voltage source converter valve groups in series operation; for a direct-current voltage control side, each valve group controls the direct-current voltage itself according to the assigned direct-current voltage reference value for each valve group; for an active power control side, each valve group controls the active power itself according to the assigned active power reference value for each valve group by superimposing the active power compensation amounts of the valve group itself, the active power compensation amount having pressure equalization effects on the valve group. Correspondingly, also provided is a coordinated control device for a series voltage source converter valve group. The direct-current voltage equalization of each valve group in operation of the direct-current voltage control side or the active power control side of the series voltage source converter valve group is implemented.
Inventors:
LU JIANG (CN)
LU YU (CN)
DONG YUNLONG (CN)
WANG YONGPING (CN)
TIAN JIE (CN)
LI HAIYING (CN)
HU ZHAOQING (CN)
WANG NANNAN (CN)
WANG KE (CN)
DING JIUDONG (CN)
LU YU (CN)
DONG YUNLONG (CN)
WANG YONGPING (CN)
TIAN JIE (CN)
LI HAIYING (CN)
HU ZHAOQING (CN)
WANG NANNAN (CN)
WANG KE (CN)
DING JIUDONG (CN)
Application Number:
PCT/CN2018/117947
Publication Date:
June 13, 2019
Filing Date:
November 28, 2018
Export Citation:
Assignee:
NR ELECTRIC CO LTD (CN)
NR ENGINEERING CO LTD (CN)
NR ENGINEERING CO LTD (CN)
International Classes:
H02J3/36
Domestic Patent References:
| WO2016177398A1 | 2016-11-10 |
Foreign References:
| CN107994599A | 2018-05-04 | |||
| CN106655239A | 2017-05-10 | |||
| CN103269083A | 2013-08-28 | |||
| CN106684901A | 2017-05-17 | |||
| CN104201910A | 2014-12-10 |
Other References:
See also references of EP 3723228A4
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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