Open AccessDynamic characteristics of DFIG frequency oscillation of wind turbines with virtual inertia control
Author(s) -
Ma Jing,
Shen Yaqi,
Zhang Yongxin
Publication year - 2017
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2017.0782
Subject(s) - wind power , control theory (sociology) , oscillation (cell signaling) , turbine , inertia , electric power system , computer science , power (physics) , induction generator , engineering , electrical engineering , physics , control (management) , mechanical engineering , classical mechanics , artificial intelligence , quantum mechanics , biology , genetics
With the conventional power supply being replaced by a large number of wind power and the investment of ultra‐high‐voltage transmission channels, the operating characteristics of the power system have undergone profound changes, and the characteristics of power electronics have become increasingly evident. The dynamic characteristics of DFIG (double‐fed induction generator) with virtual inertia control are in a coupling relationship with the dynamic characteristics of the power system, which leads to significant changes in the frequency oscillation characteristics of the wind turbine. The intrinsic mechanism and external performance of the sub and super‐synchronous oscillating systems are essentially different from those of conventional wind turbines. Based on the analysis of oscillation mechanism and stability of traditional wind turbines, this study reviews the literature and summarises the existing key technical problems. Secondly, the eigenvalue analysis and simulation are used to demonstrate the influence of virtual inertia on the sub and super‐synchronous oscillations of wind turbines.