TY - JOUR
T1 - An Optimal and Distributed Method for Voltage Regulation in Power Distribution Systems
AU - Zhang, Baosen
AU - Lam, Albert Y.S.
AU - Domínguez-García, Alejandro D.
AU - Tse, David
N1 - Publisher Copyright:
© 1969-2012 IEEE.
PY - 2015/7/1
Y1 - 2015/7/1
N2 - This paper addresses the problem of voltage regulation in power distribution networks with deep-penetration of distributed energy resources, e.g., renewable-based generation, and storage-capable loads such as plug-in hybrid electric vehicles. We cast the problem as an optimization program, where the objective is to minimize the losses in the network subject to constraints on bus voltage magnitudes, limits on active and reactive power injections, transmission line thermal limits and losses. We provide sufficient conditions under which the optimization problem can be solved via its convex relaxation. Using data from existing networks, we show that these sufficient conditions are expected to be satisfied by most networks. We also provide an efficient distributed algorithm to solve the problem. The algorithm adheres to a communication topology described by a graph that is the same as the graph that describes the electrical network topology. We illustrate the operation of the algorithm, including its robustness against communication link failures, through several case studies involving 5-, 34-, and 123-bus power distribution systems.
AB - This paper addresses the problem of voltage regulation in power distribution networks with deep-penetration of distributed energy resources, e.g., renewable-based generation, and storage-capable loads such as plug-in hybrid electric vehicles. We cast the problem as an optimization program, where the objective is to minimize the losses in the network subject to constraints on bus voltage magnitudes, limits on active and reactive power injections, transmission line thermal limits and losses. We provide sufficient conditions under which the optimization problem can be solved via its convex relaxation. Using data from existing networks, we show that these sufficient conditions are expected to be satisfied by most networks. We also provide an efficient distributed algorithm to solve the problem. The algorithm adheres to a communication topology described by a graph that is the same as the graph that describes the electrical network topology. We illustrate the operation of the algorithm, including its robustness against communication link failures, through several case studies involving 5-, 34-, and 123-bus power distribution systems.
KW - Distributed algorithms
KW - Distribution network management
KW - Optimal power flow
KW - Voltage support
UR - http://www.scopus.com/inward/record.url?scp=84933037185&partnerID=8YFLogxK
U2 - 10.1109/TPWRS.2014.2347281
DO - 10.1109/TPWRS.2014.2347281
M3 - Journal article
AN - SCOPUS:84933037185
SN - 0885-8950
VL - 30
SP - 1714
EP - 1726
JO - IEEE Transactions on Power Systems
JF - IEEE Transactions on Power Systems
IS - 4
M1 - 6908041
ER -