Title:
CONVERTER CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2019/056783
Kind Code:
A1
Abstract:
The present invention discloses a converter control method applied in a voltage source converter. An AC side of the voltage source converter is connected to an AC system by means of a converter transformer, and a primary-side voltage and a secondary-side current are collected to realize closed-loop current control of the converter. Using the control method provided in the present invention can prevent a control failure caused by CT saturation at a primary-side bushing of a converter transformer, and no additional measurement device is required, thereby achieving higher economic efficiency.
Inventors:
LU YU (CN)
WANG NANNAN (CN)
DONG YUNLONG (CN)
TIAN JIE (CN)
LI HAIYING (CN)
JIANG CHONGXUE (CN)
WANG JIACHENG (CN)
DING JIUDONG (CN)
HU ZHAOQING (CN)
LU JIANG (CN)
WANG NANNAN (CN)
DONG YUNLONG (CN)
TIAN JIE (CN)
LI HAIYING (CN)
JIANG CHONGXUE (CN)
WANG JIACHENG (CN)
DING JIUDONG (CN)
HU ZHAOQING (CN)
LU JIANG (CN)
Application Number:
PCT/CN2018/087664
Publication Date:
March 28, 2019
Filing Date:
May 21, 2018
Export Citation:
Assignee:
NR ELECTRIC CO LTD (CN)
NR ENGINEERING CO LTD (CN)
NR ENGINEERING CO LTD (CN)
International Classes:
H02J3/36; H02M7/00
Foreign References:
| CN107612014A | 2018-01-19 | |||
| CN102967842A | 2013-03-13 | |||
| US20150236759A1 | 2015-08-20 | |||
| CN102739025A | 2012-10-17 |
Other References:
See also references of EP 3667858A4
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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