Open AccessDynamic reactive power optimal allocation to decrease wind power curtailment in a large‐scale wind power integration area
Author(s) -
Niu Tao,
Guo Qinglai,
Jin Hongyang,
Sun Hongbin,
Zhang Boming,
Liu Haitao
Publication year - 2017
Publication title -
iet renewable power generation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.005
H-Index - 76
eISSN - 1752-1424
pISSN - 1752-1416
DOI - 10.1049/iet-rpg.2017.0144
Subject(s) - wind power , power (physics) , ac power , computer science , engineering , reliability engineering , voltage , electrical engineering , physics , quantum mechanics
Autonomous voltage security regions (AVSRs) have been proposed to prevent cascading trip faults in wind farms. However, due to insufficient dynamic reactive power (DRP) support and unreasonable DRP allocation in large‐scale, centralised wind power integration areas, especially for high wind power penetrations, AVSRs may be too small to guarantee secure wind farm operation, resulting in large amounts of wind power curtailment. DRP allocation is crucial for wind farms to accommodate more wind power and decrease curtailment. Therefore, a DRP allocation scheme based on the AVSR to accommodate more wind power is proposed in this work. An improved AVSR considering wind power curtailment is first derived; the function between the AVSR, DRP reserves and curtailment is then obtained, and an optimal DRP allocation scheme using Benders decomposition is finally proposed. Good performance is observed when tested on a real large‐scale wind power base in Northern China.