Premium
Virtual synchronous generator model control of PV for improving transient stability and damping in a large‐scale power system
Author(s) -
Nogami Shun,
Yokoyama Akihiko,
Daibu Takashi,
Hono Yuuki
Publication year - 2019
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.23184
Subject(s) - transient (computer programming) , electric power system , permanent magnet synchronous generator , control theory (sociology) , engineering , power (physics) , governor , generator (circuit theory) , inertia , control engineering , computer science , control (management) , electrical engineering , voltage , physics , aerospace engineering , classical mechanics , quantum mechanics , artificial intelligence , operating system
Because of the significant changes in environmental policies and electric power deregulation in the last decade, a lot of photovoltaic generations (PV) have been and will be installed into the power system in Japan and the ratio of PVs to other synchronous generators will be increased. As a countermeasure against the decrease in the rotational inertia in the whole power system, a virtual synchronous generator (VSG) model control of the PV has so far been proposed. However, the system stabilization effect of the VSG in large‐scale power systems has been unclear. In this paper, a virtual step‐out blocking method of VSG for improving the transient stability is proposed. In addition, the necessity of governor control of VSG in a large‐scale power system is discussed. Finally, the rated kw and kwh capacities of the battery required for realizing the VSG‐model control are evaluated.