Open AccessDynamic reactive power reserve optimisation in wind power integration areas
Author(s) -
Niu Tao,
Guo Qinglai,
Sun Hongbin,
Liu Haitao,
Zhang Boming,
Du Yanling
Publication year - 2018
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2017.0666
Subject(s) - wind power , ac power , electric power system , reservation , computation , computer science , power (physics) , reliability engineering , engineering , voltage , electrical engineering , computer network , physics , algorithm , quantum mechanics
To prevent the wind units from cascading trip faults, the concept of an autonomous voltage security region (AVSR) has been discussed in previous studies. However, the AVSR is sometimes not sufficiently large due to the insufficient dynamic reactive power reserve (DRPR) under normal conditions, resulting in secure operation problems and a large amount of wind curtailment. Therefore, reservation of an appropriate capacity of dynamic reactive power is a crucial issue in wind farms, so a DRPR optimisation model to enlarge the AVSR is proposed in this work. The computation of the optimal DRPR includes six steps and involves the exchange of information between wind farms and the control centre. The computation is rapid and can be applied to real wind systems online. The proposed method demonstrated good performance in a simple test case and a real system in Northern China.