Power-flow sensitivities in DC distribution systems

Victor Purba, Yu Christine Chen, Sairaj V. Dhople

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

We examine the steady-state behavior of DC distribution systems with arbitrary topologies that couple a heterogeneous collection of power-electronic circuits modeled as parallel connections of resistances, and constant current and power sources (or loads). For this system, we provide analytical closed-form expressions for sensitivities that capture variations of line power flows due to: i) changes in nodal power injections, and ii) line outages. Our results follow from a perturbative analysis of the network power-balance expressions, and the approach leverages contemporary results from circuit theory and structural properties of the network conductance matrix. Simulations from illustrative networks confirm the validity and accuracy of the analytical expressions in estimating the impact of nodal power injections and line outages.

Original languageEnglish (US)
Title of host publication2015 IEEE 16th Workshop on Control and Modeling for Power Electronics, COMPEL 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467368476
DOIs
StatePublished - Sep 1 2015
Event16th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2015 - Vancouver, Canada
Duration: Jul 12 2015Jul 15 2015

Publication series

Name2015 IEEE 16th Workshop on Control and Modeling for Power Electronics, COMPEL 2015

Other

Other16th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2015
CountryCanada
CityVancouver
Period7/12/157/15/15

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