Transient Stability Guarantees for Ad Hoc DC Microgrids
Name
1707.01525v3.pdf
Description
Accepted version
Size
396.48 KB
Format
Adobe PDF
Checksum (MD5)
41447848694786ac85c01016d6e2c97b
Author(s)
Cavanagh, Kathleen
Belk, Julia A.
Turitsyn, Konstantin
Date Issued
January 2018
Journal
IEEE Control Systems Letters
Publisher
Institute of Electrical and Electronics Engineers
Citation
K. Cavanagh, J. A. Belk and K. Turitsyn, "Transient Stability Guarantees for Ad Hoc DC Microgrids," in IEEE Control Systems Letters, vol. 2, no. 1, pp. 139-144, Jan. 2018.
Version
Author's final manuscript
Abstract
Ad hoc electrical networks are formed by connecting power sources and loads without planning the interconnection structure (topology) in advance. They are designed to be installed and operated by individual communities - without central oversight - and as a result are well-suited to addressing the lack of electricity access in rural and developing areas. However, ad hoc networks are not widely used, and a major technical challenge impeding their development (and deployment) is the difficulty of certifying network stability without a priori knowledge of the topology. We develop conditions on individual power sources and loads such that a microgrid comprised of many units will be stable. We use Brayton-Moser potential theory to develop design constraints on individual microgrid components that certify transient stability - guaranteeing that the system will return to a suitable equilibrium after load switching events. Our central result is that stability can be ensured by installing a parallel capacitor at each constant power load, and we derive an expression for the required capacitance.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
Creative Commons Attribution-Noncommercial-ShareAlike
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DOI of Published Version
https://doi.org/10.1109/lcsys.2017.2764441
