IFAC Workshop on Control of Smart Grid and Renewable Energy Systems - CSGRES 2019, Jeju (South Korea). 10-12 June 2019
Summary:
This paper proposes an effective control strategy for converter-interfaced energy storage systems (CI-ESSs) to regulate simultaneously the frequency and its rate of change at the point of common coupling with the grid. The controller takes advantage of the fast response of CI-ESSs, and of the fact that the time frames of inertial response and primary frequency control are decoupled, allowing for an effective control capability the CI-ESS for both time frames after a disturbance. The performance of the proposed control is compared with the standard droop control and the popular virtual inertia provision. Simulation results, based on a modified version of the well-known WSCC 9-bus, 3-machine test system, indicate that the proposed control outperforms, for the scenarios considered, the other two control strategies.
Keywords: Frequency control; rate of change of frequency (RoCoF); converter-interfaced energy storage system (CI-ESS); battery energy storage; distributed energy resource (DER);
DOI: 
https://doi.org/10.1016/j.ifacol.2019.08.198
Published in IFAC-PapersOnLine, vol: 52, pp: 240-245, ISSN: 2405-8971
Publication date: 2019-09-10.
Citation:
A. Ortega, F. Milano, Combined frequency and RoCoF control of converter-interfaced energy storage systems, IFAC Workshop on Control of Smart Grid and Renewable Energy Systems - CSGRES 2019, Jeju (South Korea). 10-12 June 2019. In: IFAC-PapersOnLine, vol. 52, nº. 4, ISSN: 2405-8971
