A QCQP Approach for OPF in Multiphase Radial Networks with Wye and Delta Connections: Preprint

Conference · Tue Jun 27 04:00:00 EDT 2017

OSTI ID:1369115

Zhaoy, Changhong; Dall'Anesey, Emiliano; Sidiropoulos, Nicholas D.

This paper examines the AC Optimal Power Flow (OPF) problem for multiphase distribution networks featuring renewable energy resources (RESs). We start by outlining a power flow model for radial multiphase systems that accommodates wye-connected and delta-connected RESs and non-controllable energy assets. We then formalize an AC OPF problem that accounts for both types of connections. Similar to various AC OPF renditions, the resultant problem is a non convex quadratically-constrained quadratic program. However, the so-called Feasible Point Pursuit-Successive Convex Approximation algorithm is leveraged to obtain a feasible and yet locally-optimal solution. The merits of the proposed solution approach are demonstrated using two unbalanced multiphase distribution feeders with both wye and delta connections.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Advanced Research Projects Agency - Energy (ARPA-E)
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 1369115
• Report Number(s): NREL/CP-5D00-68605
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
QCQP
distributed energy resources
optimal power flow
successive convex approximation