Distributed control of a fleet of batteries

Ana Bušic 1, 2 Md Umar Hashmi 1 Sean Meyn 3
1 DYOGENE - Dynamics of Geometric Networks
Inria de Paris, CNRS - Centre National de la Recherche Scientifique : UMR 8548, DI-ENS - Département d'informatique de l'École normale supérieure
Abstract : Battery storage is increasingly important for grid-level services such as frequency regulation, load following, and peak-shaving. The management of a large number of batteries presents a control challenge: How can we solve the apparently combinatorial problem of coordinating a large number of batteries with discrete, and possibly slow rates of charge/discharge? The control solution must respect battery constraints, and ensure that the aggregate power output tracks the desired grid-level signal. A distributed stochastic control architecture is introduced as a potential solution. Extending prior research on distributed control of flexible loads, a randomized decision rule is defined for each battery of the same type. The power mode at each time-slot is a randomized function of the grid-signal and its internal state. The randomized decision rule is designed to maximize idle time of each battery, and keep the state-of-charge near its optimal level, while ensuring that the aggregate power output can be continuously controlled by a grid operator or aggregator. Numerical results show excellent tracking, and low stress to individual batteries.
Complete list of metadatas

Cited literature [20 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01656735
Contributor : Ana Busic <>
Submitted on : Wednesday, December 6, 2017 - 2:02:49 AM
Last modification on : Thursday, October 17, 2019 - 12:36:05 PM

File

ACCbatteryFinal.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-01656735, version 1

Citation

Ana Bušic, Md Umar Hashmi, Sean Meyn. Distributed control of a fleet of batteries. ACC 2017 - American Control Conference, May 2017, Seattle, United States. pp.1-6. ⟨hal-01656735⟩

Share

Metrics

Record views

172

Files downloads

202