TY - GEN
T1 - Power-flow sensitivities in DC distribution systems
AU - Purba, Victor
AU - Chen, Yu Christine
AU - Dhople, Sairaj V.
PY - 2015/9/1
Y1 - 2015/9/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84957921617&partnerID=8YFLogxK
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U2 - 10.1109/COMPEL.2015.7236472
DO - 10.1109/COMPEL.2015.7236472
M3 - Conference contribution
AN - SCOPUS:84957921617
T3 - 2015 IEEE 16th Workshop on Control and Modeling for Power Electronics, COMPEL 2015
BT - 2015 IEEE 16th Workshop on Control and Modeling for Power Electronics, COMPEL 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 16th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2015
Y2 - 12 July 2015 through 15 July 2015
ER -