Open AccessPower‐oscillation evaluation in power systems with high penetration of renewable power generation based on network virtual inertia
Author(s) -
Liu Cheng,
Cai Guowei
Publication year - 2019
Publication title -
iet renewable power generation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.005
H-Index - 76
ISSN - 1752-1424
DOI - 10.1049/iet-rpg.2018.5306
Subject(s) - penetration (warfare) , inertia , renewable energy , electric power system , oscillation (cell signaling) , electrical engineering , power (physics) , computer science , automotive engineering , engineering , physics , chemistry , operations research , classical mechanics , quantum mechanics , biochemistry
With regards to the problems in which the power‐oscillation characteristics of power systems with high penetration of renewable power generation are complex and difficult to effectively analyse, a novel network virtual‐inertia method is proposed to evaluate the power oscillation in such systems. Firstly, the network virtual inertia is defined and developed. Secondly, the network virtual inertia is calculated and obtained based on the measurement information. Thirdly, the relationship between the network virtual inertia and generator inertia is constructed. Finally, the network virtual inertia of power systems with high penetration of renewable power generation is analysed. The evaluation method is effective and easy to implement. Simulations involving four‐generator two‐area containing renewable power generation were conducted under various disturbances to prove the effectiveness of the proposed method.