TY - GEN
T1 - Optimal voltage regulation for unbalanced distribution networks considering distributed energy resources
AU - Liu, Guodong
AU - Ceylan, Oguzhan
AU - Xu, Yan
AU - Tomsovic, Kevin
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/9/30
Y1 - 2015/9/30
N2 - With increasing penetration of distributed generation in the distribution networks (DN), the secure and optimal operation of DN has become an important concern. In this paper, an iterative quadratic constrained quadratic programming model to minimize voltage deviations and maximize distributed energy resource (DER) active power output in a three phase unbalanced distribution system is developed. The optimization model is based on the linearized sensitivity coefficients between controlled variables (e.g., node voltages) and control variables (e.g., real and reactive power injections of DERs). To avoid the oscillation of solution when it is close to the optimum, a golden search method is introduced to control the step size. Numerical simulations on modified IEEE 13 nodes test feeders show the efficiency of the proposed model. Compared to the results solved by heuristic search (harmony algorithm), the proposed model converges quickly to the global optimum.
AB - With increasing penetration of distributed generation in the distribution networks (DN), the secure and optimal operation of DN has become an important concern. In this paper, an iterative quadratic constrained quadratic programming model to minimize voltage deviations and maximize distributed energy resource (DER) active power output in a three phase unbalanced distribution system is developed. The optimization model is based on the linearized sensitivity coefficients between controlled variables (e.g., node voltages) and control variables (e.g., real and reactive power injections of DERs). To avoid the oscillation of solution when it is close to the optimum, a golden search method is introduced to control the step size. Numerical simulations on modified IEEE 13 nodes test feeders show the efficiency of the proposed model. Compared to the results solved by heuristic search (harmony algorithm), the proposed model converges quickly to the global optimum.
KW - Voltage regulation
KW - distributed energy resource (DER)
KW - golden search method
KW - linearization
KW - sensitivity coefficients
KW - unbalanced distribution network
UR - http://www.scopus.com/inward/record.url?scp=84956861119&partnerID=8YFLogxK
U2 - 10.1109/PESGM.2015.7286473
DO - 10.1109/PESGM.2015.7286473
M3 - Conference contribution
AN - SCOPUS:84956861119
T3 - IEEE Power and Energy Society General Meeting
BT - 2015 IEEE Power and Energy Society General Meeting, PESGM 2015
PB - IEEE Computer Society
T2 - IEEE Power and Energy Society General Meeting, PESGM 2015
Y2 - 26 July 2015 through 30 July 2015
ER -