Progress in control and coordination of energy storage system-based VSG: a review

• Published in: IET renewable power generation Vol. 14; no. 2; pp. 177 - 187
• Main Authors: Othman, Mohd Hanif, Mokhlis, Hazlie, Mubin, Marizan, Talpur, Saifal, Ab Aziz, Nur Fadilah, Dradi, Mohamad, Mohamad, Hasmaini
• Format: Journal Article
• Language: English
• Published: The Institution of Engineering and Technology 03.02.2020
• Subjects: appropriate active power value; damping; distributed power generation; energy storage; energy storage system‐based VSG; frequency instability; frequency stabilisation; frequency stability; grid frequency; grid stabilisation; inertia control; inertia response; intelligent control; intelligent controller techniques; modern power grid; modern power system; oscillation damping; power electronics; power electronic‐based power generation; power generation control; power grids; power imbalance; power system stability; Review Article; synchronous generators; total inertia; virtual inertia; virtual synchronous generator; frequency stabilisation; power generation control; distributed power generation; grid frequency; intelligent controller techniques; power electronics; modern power system; synchronous generators; inertia control; energy storage; energy storage system-based VSG; virtual synchronous generator; total inertia; power electronic-based power generation; power grids; oscillation damping; virtual inertia; power system stability; frequency stability; intelligent control; damping; appropriate active power value; grid stabilisation; frequency instability; modern power grid; power imbalance; inertia response
• ISSN: 1752-1416; 1752-1424; 1752-1424
• DOI: 10.1049/iet-rpg.2019.0274

Virtual synchronous generator (VSG) is an important concept toward frequency stabilisation of the modern power system. The penetration of power electronic-based power generation in power grid reduces the total inertia, and thus increases the risk of frequency instability when disturbance occurs in the grid. VSG produces virtual inertia by injecting appropriate active power value to the grid when needed. This virtual inertia can stabilise the grid frequency in case of a power imbalance between generation and loads or any disturbances that affected frequency stability. Its intensive research can see the importance of VSG in inertia control and various intelligent controller techniques. Owing to the importance of VSG in the modern power grid, this study provides a comprehensive review on the control and coordination of VSG toward grid stabilisation in terms of frequency, voltage and oscillation damping during inertia response. A review on the type of energy storage system used for VSG and their benefits is also presented. Finally, perspective on the technical challenges and potential future research related to VSG is also discussed in this study.