Open AccessImproved virtual synchronous generator control to analyse and enhance the transient stability of microgrid
Author(s) -
Cheema Khalid Mehmood,
Mehmood Kashif
Publication year - 2020
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.2019.0855
Subject(s) - transient (computer programming) , microgrid , control theory (sociology) , rotor (electric) , permanent magnet synchronous generator , electric power system , governor , inertia , renewable energy , power (physics) , generator (circuit theory) , computer science , stability (learning theory) , control engineering , engineering , control (management) , physics , electrical engineering , aerospace engineering , quantum mechanics , artificial intelligence , machine learning , operating system , classical mechanics
In recent years, the integration of renewable energy resources (RESs) into the power system is growing rapidly, and it is necessary to analyse and evaluate the effect of RES on transient stability of the power system. In this study, centre of inertia (COI) concept is implemented to analyse and evaluate the integration effects of an auxiliary damping control‐based virtual synchronous generator (VSG) consisting an improved governor. The impact of VSG integration is divided into synchronous generator (SG) linked parts and COI associated parts. Due to VSG integration into the power system, the significant elements which disturb the COI dynamic motion and rotor dynamics of SG are examined in detail. Different cases are considered to evaluate the effectiveness of the proposed method, i.e. VSG's different integrating location and different power capacities. It is observed in simulation results that COI dynamic motion and rotor dynamics of SG are positively affected by VSG integration, and transient stability improves significantly.