Our paper on storage-based frequency shaping control [1] has been accepted to IEEE Transactions on Power Systems!

[Bibtex] [Abstract] [Download PDF]

With the decrease in system inertia, frequency security becomes an issue for power systems around the world. Energy storage systems (ESS), due to their excellent ramping capabilities, are considered as a natural choice for the improvement of frequency response following major contingencies. In this manuscript, we propose a new strategy for energy storage — frequency shaping control — that allows to completely eliminate the frequency Nadir, one of the main issue in frequency security, and at the same time tune the rate of change of frequency (RoCoF) to a desired value. With Nadir eliminated, the frequency security assessment can be performed via simple algebraic calculations, as opposed to dynamic simulations for conventional control strategies. Moreover, our proposed control is also very efficient in terms of the requirements on storage peak power, requiring up to 40% less power than conventional virtual inertia approach for the same performance.

```
@article{jcvm2021tps,
abstract = {With the decrease in system inertia, frequency security becomes an issue for power systems around the world. Energy storage systems (ESS), due to their excellent ramping capabilities, are considered as a natural choice for the improvement of frequency response following major contingencies. In this manuscript, we propose a new strategy for energy storage -- frequency shaping control -- that allows to completely eliminate the frequency Nadir, one of the main issue in frequency security, and at the same time tune the rate of change of frequency (RoCoF) to a desired value. With Nadir eliminated, the frequency security assessment can be performed via simple algebraic calculations, as opposed to dynamic simulations for conventional control strategies. Moreover, our proposed control is also very efficient in terms of the requirements on storage peak power, requiring up to 40% less power than conventional virtual inertia approach for the same performance.},
author = {Jiang, Yan and Cohn, Eliza and Vorobev, Petr and Mallada, Enrique},
doi = {10.1109/TPWRS.2021.3072833},
journal = {IEEE Transactions on Power Systems},
month = {4},
pages = {1-13},
pubstate = {early access},
record = {accepted Mar 2021, revised Oct 2020, submitted May 2020},
title = {Storage-Based Frequency Shaping Control},
url = {https://mallada.ece.jhu.edu/pubs/2021-TPS-JCVM.pdf},
year = {2021}
}
```