Title:
SUBSYNCHRONOUS OSCILLATION SUPPRESSION METHOD, SYSTEM AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/236493
Kind Code:
A1
Abstract:
Disclosed in the present invention is a subsynchronous oscillation suppression method, system and apparatus. The method comprises: extracting a power angle deviation signal of a doubly-fed induction wind driven generator; according to the power angle deviation signal of the doubly-fed induction wind driven generator, generating, by means of modulation, a subsynchronous component signal of a power angle deviation; and superimposing the subsynchronous component signal of the power angle deviation onto the voltage of a q-axis control loop of a rotor side of the doubly-fed wind driven generator, so as to perform compensation control on a q-axis voltage of a rotor, thereby suppressing subsynchronous oscillation. By means of the present invention, subsynchronous oscillation caused by the grid connection of a doubly-fed wind power farm via a series compensation line can be effectively suppressed, thereby ensuring the stability of a power system.
Inventors:
GU KANGHUI (CN)
ZHA SHENSEN (CN)
ZHANG SHITAO (CN)
WANG QIUDONG (CN)
WANG ZHENQUAN (CN)
NIU TAO (CN)
ZHEN HONGNING (CN)
LI JINKE (CN)
YANG YUN (CN)
SUN SHUNXIANG (CN)
FENG SHIRUI (CN)
ZHA SHENSEN (CN)
ZHANG SHITAO (CN)
WANG QIUDONG (CN)
WANG ZHENQUAN (CN)
NIU TAO (CN)
ZHEN HONGNING (CN)
LI JINKE (CN)
YANG YUN (CN)
SUN SHUNXIANG (CN)
FENG SHIRUI (CN)
Application Number:
PCT/CN2022/139673
Publication Date:
December 14, 2023
Filing Date:
December 16, 2022
Export Citation:
Assignee:
CHINA ENERGY ENGINEERING GROUP JIANGSU POWER DESIGN INST CO LTD (CN)
International Classes:
H02J3/00; F03D9/25; H02J3/38
Foreign References:
| CN115021243A | 2022-09-06 | |||
| CN102624013A | 2012-08-01 | |||
| CN109347097A | 2019-02-15 | |||
| US20120299305A1 | 2012-11-29 |
Other References:
ZHANG ZI-YONG, HU ZHI-JIAN, LI YONG-HUI, FANG JIA-CHENG, JIANG MEI-LING, WANG HE: "Small Signal Dynamic Modelling and Additionaller Damping Controller Designing for Large Wind Generation System based on DFIG", DIANLI XITONG BAOHU YU KONGZHI/POWER SYSTEM PROTECTION AND CONTROL, vol. 39, no. 18, 16 September 2011 (2011-09-16), pages 127 - 133, XP009551232, ISSN: 1674-3415
ZHANG ZI-YONG, HU ZHI-JIAN, LI YONG-HUI: "Design of Wide-area Damping Controller of Grid-tied Wind Generation System Based DFIG", GAODIANYA-JISHU : JIKAN - HIGH VOLTAGE ENGINEERING, WUHAN : SHUILI DIANLI BU WUHAN GAOYA YANJIUSUO, CN, vol. 37, no. 1, 31 January 2011 (2011-01-31), CN , pages 157 - 163, XP009551229, ISSN: 1003-6520, DOI: 10.13336/j.1003-6520.hve.2011.01.025
ZHANG ZI-YONG, HU ZHI-JIAN, LI YONG-HUI: "Design of Wide-area Damping Controller of Grid-tied Wind Generation System Based DFIG", GAODIANYA-JISHU : JIKAN - HIGH VOLTAGE ENGINEERING, WUHAN : SHUILI DIANLI BU WUHAN GAOYA YANJIUSUO, CN, vol. 37, no. 1, 31 January 2011 (2011-01-31), CN , pages 157 - 163, XP009551229, ISSN: 1003-6520, DOI: 10.13336/j.1003-6520.hve.2011.01.025
Attorney, Agent or Firm:
NANJING ZONGHENG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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