Regulation Signal Design and Fast Frequency Control with Energy Storage Systems: Generalized Plant state-space matrices (with and without delays)

Citation Author(s):
Noela Sofia
Guzman Encalada
Student Member, IEEE
Mariano
Arriaga
Member, IEEE
Claudio
Cañizares
Fellow, IEEE
John
W. Simpson-Porco
Member, IEEE
Daniel
Sohm
Member, IEEE
Kankar
Bhattacharya
Fellow, IEEE
Submitted by:
Noela Guzman En...
Last updated:
Tue, 04/13/2021 - 16:32
DOI:
10.21227/g7m4-0z19
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Abstract 

This paper presents a novel  filter design procedure to optimally split the Frequency Regulation (FR) signal between conventional and fast regulating Energy Storage System (ESS) assets, considering typical Communication Delays (CDs).  The filter is then integrated into a previously validated FR model of the Ontario Power System (OPS) including Battery and Flywheel ESSs, which is used to analyze the impact of these ESSs, CDs, and limited regulation capacity in the FR process in a real system.  The proposed methodology to split the FR signal is also compared with the existing FR process, with the results showing that the proposed  filter design and signal splitting strategy can improve the FR process performance significantly, in terms of reducing the Area Control Error (ACE) signal, and thus reduce the need for regulation capacity.

Instructions: 

The *.mat files attached include the state-space representation of the Generalized plant, with and without delays, in the paper "Regulation Signal Design and Fast Frequency Control with Energy Storage Systems". By following the instructions in Section III.A of the paper, the state-space matrices of the Generalized Plant GP(z) can be use to generate the controller F(z) proposed in the paper.