Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published January 2015 | public
Book Section - Chapter

Optimal Sizing of Voltage Control Devices for Distribution Circuit with Intermittent Load


We consider joint control of a switchable capacitor and a D-STATCOM for voltage regulation in a distribution circuit with intermittent load. The control problem is formulated as a two-timescale optimal power flow problem with chance constraints, which minimizes power loss while limiting the probability of voltage violations due to fast changes in load. The control problem forms the basis of an optimization problem which determines the sizes of the control devices by minimizing sum of the expected power loss cost and the capital cost. We develop computationally efficient heuristics to solve the optimal sizing problem and implement real-time control. Numerical experiments on a circuit with high-performance computing (HPC) load show that the proposed sizing and control schemes significantly improve the reliability of voltage regulation on the expense of only a moderate increase in cost.

Additional Information

© 2015 IEEE. The authors would like to thank Steven Low for helpful discussions. This work was done during the internship of the first author at the Center for Nonlinear Studies, Los Alamos National Laboratory. This work was supported by the Advanced Grid Modeling Program within the Office of Electricity in the U.S. Department of Energy.

Additional details

August 20, 2023
October 17, 2023