Title:
METHOD AND SYSTEM FOR COORDINATELY CONTROLLING REACTIVE VOLTAGE OF WIND FARM
Document Type and Number:
WIPO Patent Application WO/2021/088442
Kind Code:
A1
Abstract:
A method and system for coordinately controlling a reactive voltage of a wind farm. The method and system measure the voltage of a grid-connected point of a wind farm and that of a wind generator set in the wind farm, and compares the measured values with a preset first threshold interval of normal work. When a sudden increase/decrease occurs to the voltage transient of the grid-connected point of the wind farm during normal work, optimal voltage value adjustment is performed to coordinate reactive power distribution between an SVG and the wind generator set in the wind farm. When the voltage of the grid-connected point of the wind farm and a terminal voltage go beyond the first threshold interval, the SVG and the wind generator set in the wind farm enter an emergent closed-loop control mode, and separately perform reactive powder adjustment.
Inventors:
SUN HUADONG (CN)
LI WENFENG (CN)
GUO JIANBO (CN)
XU TAO (CN)
YU ZHAO (CN)
TAO XIANGYU (CN)
WEI WEI (CN)
WANG GUANHONG (CN)
JIA YUAN (CN)
LI YING (CN)
ZHANG JIAN (CN)
LI WENFENG (CN)
GUO JIANBO (CN)
XU TAO (CN)
YU ZHAO (CN)
TAO XIANGYU (CN)
WEI WEI (CN)
WANG GUANHONG (CN)
JIA YUAN (CN)
LI YING (CN)
ZHANG JIAN (CN)
Application Number:
PCT/CN2020/106750
Publication Date:
May 14, 2021
Filing Date:
August 04, 2020
Export Citation:
Assignee:
CHINA ELECTRIC POWER RES INSTITUTE COMPANY LIMITED (CN)
STATE GRID CORP CHINA (CN)
STATE GRID CORP CHINA (CN)
International Classes:
H02J3/18; H02J3/38; H02J3/50
Foreign References:
| CN110970906A | 2020-04-07 | |||
| CN110970907A | 2020-04-07 | |||
| CN109861311A | 2019-06-07 | |||
| CN105720585A | 2016-06-29 | |||
| CN102882229A | 2013-01-16 | |||
| US20090096211A1 | 2009-04-16 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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